为了账号安全，请及时绑定邮箱和手机立即绑定
首页 手记 Java分布式资料入门教程

Java分布式资料入门教程

标签：
Java 云计算
概述

本文详细介绍了Java分布式系统的设计与实现，涵盖了Java在分布式系统中的应用、常用框架及技术，如RPC、消息队列和微服务架构。文章还探讨了分布式数据处理、网络通信与协议、分布式协调与一致性等关键技术，并通过实战项目示例展示了如何使用Java构建分布式系统。文中提供了丰富的代码示例和实际案例，帮助读者深入理解并掌握Java分布式系统开发所需的各项技能。文中提及的Java分布式资料将帮助读者进一步学习和研究相关技术。

Java分布式系统简介

分布式系统是指一组通过网络连接在一起的计算机，它们协同工作以完成共同的目标。每个计算机节点都在某种程度上独立运行，但在完成任务时通过网络进行通信和协作。分布式系统的设计目标是提高系统的可用性、可靠性和可扩展性。

分布式系统的基本概念

分布式系统中的基本概念包括但不限于以下几个方面：

  • 节点（Node）：分布式系统中的一个独立运行的计算机或进程。节点可以是物理计算机，也可以是虚拟化的计算资源。每个节点都可以独立执行任务，并与其他节点进行通信。
  • 通信（Communication）：分布式系统中的节点之间需要通过网络进行通信，以便交换数据和执行协作任务。通信的方式包括消息传递、远程过程调用（RPC）等。
  • 协调（Coordination）：在分布式系统中，多个节点需要协调任务的执行，以确保整个系统的正确性和一致性。
  • 容错（Fault Tolerance）：分布式系统需要设计成即使某些节点出现故障，整个系统仍能继续运行。容错机制包括冗余副本、故障检测和恢复等。
  • 一致性（Consistency）：分布式系统中的数据需要保持一致，即使在多个节点之间进行数据交换时也是如此。一致性是分布式系统中一个重要的概念，通常通过分布式锁、分布式事务等技术来实现。

Java在分布式系统中的应用

Java语言由于其平台独立性、丰富的类库和强大的并发支持，成为许多分布式系统开发的首选。在Java中，分布式系统开发主要涉及以下方面：

  • 远程过程调用（RPC）：Java提供了多种实现RPC的方式，如RMI（Remote Method Invocation）。
  • 消息队列（Message Queue）：通过JMS（Java Message Service）实现异步通信。
  • 微服务架构：使用Spring Boot和Spring Cloud开发微服务。
  • 分布式缓存：使用Redis、Memcached等。
  • 分布式事务：使用XA事务、两阶段提交等。
  • 分布式协调：使用Zookeeper、Kubernetes等。

示例代码

以下是一个使用RMI实现的简单示例。通过RMI，客户端可以调用远程服务器上的方法，就像调用本地方法一样。

服务端代码

import java.rmi.registry.LocateRegistry;
import java.rmi.registry.Registry;
import java.rmi.server.UnicastRemoteObject;

public class RmiServer {
    public static void main(String[] args) {
        try {
            // 创建服务对象
            RmiService service = new RmiServiceImpl();
            // 创建远程对象
            RmiService stub = (RmiService) UnicastRemoteObject.exportObject(service, 0);
            // 绑定远程对象到RMI注册表
            Registry registry = LocateRegistry.createRegistry(1099);
            registry.bind("RmiService", stub);
            System.out.println("Server ready");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

服务接口

import java.rmi.Remote;
import java.rmi.RemoteException;

public interface RmiService extends Remote {
    String sayHello() throws RemoteException;
}

服务实现类

import java.rmi.RemoteException;

public class RmiServiceImpl implements RmiService {
    @Override
    public String sayHello() throws RemoteException {
        return "Hello, RMI!";
    }
}

客户端代码

import java.rmi.registry.LocateRegistry;
import java.rmi.registry.Registry;
import java.rmi.server.RemoteRef;

public class RmiClient {
    public static void main(String[] args) {
        try {
            // 连接到RMI注册表
            Registry registry = LocateRegistry.getRegistry("localhost", 1099);
            // 获取远程对象的引用
            RmiService service = (RmiService) registry.lookup("RmiService");
            // 调用远程方法
            String response = service.sayHello();
            System.out.println("Received: " + response);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}
分布式架构基础知识

分布式架构是现代软件开发的重要组成部分，用于构建可扩展、高可用性和高性能的应用系统。Java作为一种成熟的编程语言，提供了多个框架和库来支持各种分布式架构。本节将介绍几种常见的分布式架构类型及其在Java中的实现方式。

分布式架构类型

微服务架构

微服务架构是一种将应用程序构建为小型、独立、可独立部署的服务集合的架构。每个服务运行在自己的进程中，且服务之间通过轻量级HTTP API或消息队列进行通信。微服务架构的实施可以提高系统的可维护性、可扩展性和可测试性。

Java中常用微服务框架包括Spring Boot和Spring Cloud。Spring Boot简化了应用程序的配置和部署过程，Spring Cloud则为微服务架构提供了许多附加功能，如服务发现、负载均衡、配置管理等。

服务导向架构（SOA）

服务导向架构（SOA）是一种将应用程序设计成一组可重用服务的方式。这些服务通过标准接口进行交互，实现松耦合和可维护的系统。SOA架构的核心在于服务的抽象、封装和重用。Java中实现SOA架构可以使用Apache Axis、CXF等框架。

示例代码

以下是一个简单的Spring Boot微服务应用程序示例。本示例使用Spring Boot框架创建一个REST服务，该服务响应HTTP GET请求并返回一些数据。

服务端代码

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

@SpringBootApplication
public class MicroserviceApplication {

    public static void main(String[] args) {
        SpringApplication.run(MicroserviceApplication.class, args);
    }
}

@RestController
class HelloController {
    @GetMapping("/hello")
    public String sayHello() {
        return "Hello, Microservice!";
    }
}

Java中的常用分布式框架

Spring Boot

Spring Boot是一个用于简化Spring应用程序开发的框架。它提供了自动配置功能、依赖管理以及内置的Web服务器，使得开发者可以快速搭建微服务。

Spring Cloud

Spring Cloud是一个基于Spring Boot构建的云应用开发工具，为分布式系统提供了配置管理、服务发现、断路器、路由、微代理、控制总线、全局锁、领导选举、分布式会话等开发工具。

示例代码

以下是一个使用Spring Cloud配置客户端的示例。该示例通过Spring Cloud从配置中心获取配置，并将其暴露为环境变量。

服务端代码

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.config.server.EnableConfigServer;

@SpringBootApplication
@EnableConfigServer
public class ConfigServerApplication {
    public static void main(String[] args) {
        SpringApplication.run(ConfigServerApplication.class, args);
    }
}

客户端代码

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.context.config.annotation.RefreshScope;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

@SpringBootApplication
public class ConfigClientApplication {

    public static void main(String[] args) {
        SpringApplication.run(ConfigClientApplication.class, args);
    }
}

@RestController
@RefreshScope
class HelloController {
    @GetMapping("/hello")
    public String sayHello() {
        return "Hello, ConfigClient!";
    }
}
网络通信与协议

网络通信是分布式系统中最基本的功能。网络通信允许计算机节点之间交换数据和消息，以协同执行任务。Java提供了多种网络通信方式，包括Socket编程和HTTP客户端/服务器等。本节将介绍Java中的网络通信方式以及TCP/IP协议在Java中的实现。

Java中常用的网络通信方式

Socket编程

Socket编程是一种直接使用TCP/IP协议进行网络通信的方式。Java提供了java.net.Socket和java.net.ServerSocket类来实现Socket通信。Socket编程的优点是可以根据需要定制通信协议，缺点是需要手动处理网络通信的复杂性。

HTTP客户端/服务器

HTTP是最常用的网络通信协议之一，用于Web应用程序之间的数据交换。Java提供了java.net.HttpURLConnection类和java.net.URLConnection类来实现HTTP客户端和服务器的功能。Spring Boot等框架也提供了更方便的HTTP客户端和服务器支持。

示例代码

以下是一个简单的Socket服务器程序，该程序监听一个端口，并接收来自客户端的连接。

服务器端代码

import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;

public class SimpleServer {
    public static void main(String[] args) {
        try (ServerSocket serverSocket = new ServerSocket(8080)) {
            System.out.println("Server started, listening on port 8080");

            // Wait for a client to connect
            Socket clientSocket = serverSocket.accept();
            System.out.println("Client connected");

            // Close the server socket and client socket
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

客户端代码

import java.io.IOException;
import java.net.Socket;

public class SimpleClient {
    public static void main(String[] args) {
        try (Socket socket = new Socket("localhost", 8080)) {
            System.out.println("Client connected to server");
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

TCP/IP协议介绍及其在Java中的实现

TCP/IP协议是用于网络通信的标准协议套件。它包括TCP（传输控制协议）和IP（互联网协议）两个主要协议。TCP提供可靠的字节流传输服务，而IP负责将数据包从源主机发送到目标主机。

Java中的Socket编程就是基于TCP/IP协议实现的。在Java中，可以使用java.net.Socket类和java.net.ServerSocket类来创建TCP连接。以下是一个简单的TCP客户端和服务器示例。

服务器端代码

import java.io.IOException;
import java.io.OutputStream;
import java.net.ServerSocket;
import java.net.Socket;

public class SimpleTCPServer {
    public static void main(String[] args) {
        try (ServerSocket serverSocket = new ServerSocket(8080)) {
            System.out.println("Server started, listening on port 8080");

            Socket clientSocket = serverSocket.accept();
            System.out.println("Client connected");

            // Send a message to the client
            OutputStream outputStream = clientSocket.getOutputStream();
            outputStream.write("Hello, client!".getBytes());
            outputStream.flush();

            // Close the server socket and client socket
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

客户端代码

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.Socket;

public class SimpleTCPClient {
    public static void main(String[] args) {
        try (Socket socket = new Socket("localhost", 8080)) {
            System.out.println("Client connected to server");

            // Read the message from the server
            BufferedReader reader = new BufferedReader(new InputStreamReader(socket.getInputStream()));
            String message = reader.readLine();
            System.out.println("Received message: " + message);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}
分布式数据处理

分布式数据处理是分布式系统中的另一个重要方面，它涉及到如何高效地存储、检索和处理分布在不同节点上的数据。Java中提供了多种分布式存储解决方案，如Hadoop、HBase等，以及分布式缓存技术，如Redis、Ehcache等。本节将介绍这些技术和它们的应用。

Java中的分布式存储解决方案

Hadoop

Hadoop是一个开源的分布式存储和计算框架，广泛用于处理大规模数据集。Hadoop主要由HDFS（Hadoop分布式文件系统）和MapReduce两个部分组成。HDFS用于存储数据，而MapReduce则用于处理数据。

  • HDFS：HDFS是Hadoop的核心组件之一，它提供了一个高容错性的分布式文件系统。HDFS可以将文件拆分成多个块存储在不同的节点上。每个块都有多个副本以提高数据的可用性和可靠性。
  • MapReduce：MapReduce是一种编程模型，用于在分布式环境下并行处理大规模数据集。MapReduce将任务分解为多个Map任务和Reduce任务，使得数据可以在多个节点上并行处理。

HBase

HBase是一个构建在Hadoop之上的分布式数据库，适用于实时读写、大规模数据存储和快速查询。HBase使用HDFS作为底层存储系统，并提供了类似关系数据库的表结构。

示例代码

以下是一个简单的Hadoop MapReduce示例。该示例计算文本文件中每个单词出现的次数。

Map函数

import java.io.IOException;
import java.util.StringTokenizer;

import org.apache.hadoop.io.IntWritable;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapreduce.Mapper;

public class WordCountMapper extends Mapper<Object, Text, Text, IntWritable> {
    private final static IntWritable one = new IntWritable(1);
    private Text word = new Text();

    @Override
    public void map(Object key, Text value, Context context) throws IOException, InterruptedException {
        StringTokenizer itr = new StringTokenizer(value.toString());
        while (itr.hasMoreTokens()) {
            word.set(itr.nextToken());
            context.write(word, one);
        }
    }
}

Reduce函数

import java.io.IOException;
import org.apache.hadoop.io.IntWritable;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapreduce.Reducer;

public class WordCountReducer extends Reducer<Text, IntWritable, Text, IntWritable> {
    @Override
    public void reduce(Text key, Iterable<IntWritable> values, Context context) throws IOException, InterruptedException {
        int sum = 0;
        for (IntWritable val : values) {
            sum += val.get();
        }
        context.write(key, new IntWritable(sum));
    }
}

主程序

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.io.IntWritable;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapreduce.Job;
import org.apache.hadoop.mapreduce.lib.input.FileInputFormat;
import org.apache.hadoop.mapreduce.lib.output.FileOutputFormat;

public class WordCount {
    public static void main(String[] args) throws Exception {
        Configuration conf = new Configuration();
        Job job = Job.getInstance(conf, "word count");
        job.setJarByClass(WordCount.class);
        job.setMapperClass(WordCountMapper.class);
        job.setCombinerClass(WordCountReducer.class);
        job.setReducerClass(WordCountReducer.class);
        job.setOutputKeyClass(Text.class);
        job.setOutputValueClass(IntWritable.class);
        FileInputFormat.addInputPath(job, new Path(args[0]));
        FileOutputFormat.setOutputPath(job, new Path(args[1]));
        System.exit(job.waitForCompletion(true) ? 0 : 1);
    }
}

HBase示例

以下是一个简单的HBase客户端示例，展示了如何将数据存储到HBase表中并从中检索数据。

存储数据

import org.apache.hadoop.hbase.HBaseConfiguration;
import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.client.Connection;
import org.apache.hadoop.hbase.client.ConnectionFactory;
import org.apache.hadoop.hbase.client.Put;
import org.apache.hadoop.hbase.client.Table;
import org.apache.hadoop.hbase.util.Bytes;

import java.io.IOException;
import java.util.Properties;

public class HBaseClient {
    public static void main(String[] args) throws IOException {
        Properties properties = HBaseConfiguration.create().getProperties();
        properties.setProperty("hbase.zookeeper.quorum", "localhost");
        properties.setProperty("hbase.zookeeper.property.clientPort", "2181");
        Connection connection = ConnectionFactory.createConnection(properties);
        Table table = connection.getTable(TableName.valueOf("myTable"));

        Put put = new Put(Bytes.toBytes("row1"));
        put.addColumn(Bytes.toBytes("colFamily"), Bytes.toBytes("qualifier"), Bytes.toBytes("value"));
        table.put(put);

        table.close();
        connection.close();
    }
}

检索数据

import org.apache.hadoop.hbase.HBaseConfiguration;
import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.client.Connection;
import org.apache.hadoop.hbase.client.ConnectionFactory;
import org.apache.hadoop.hbase.client.Result;
import org.apache.hadoop.hbase.client.ResultScanner;
import org.apache.hadoop.hbase.client.Scan;
import org.apache.hadoop.hbase.client.Table;
import org.apache.hadoop.hbase.util.Bytes;

import java.io.IOException;
import java.util.Properties;

public class HBaseClient {
    public static void main(String[] args) throws IOException {
        Properties properties = HBaseConfiguration.create().getProperties();
        properties.setProperty("hbase.zookeeper.quorum", "localhost");
        properties.setProperty("hbase.zookeeper.property.clientPort", "2181");
        Connection connection = ConnectionFactory.createConnection(properties);
        Table table = connection.getTable(TableName.valueOf("myTable"));

        Scan scan = new Scan();
        ResultScanner scanner = table.getScanner(scan);
        for (Result result : scanner) {
            String row = Bytes.toString(result.getRow());
            String value = Bytes.toString(result.getValue(Bytes.toBytes("colFamily"), Bytes.toBytes("qualifier")));
            System.out.println(row + " : " + value);
        }

        table.close();
        connection.close();
    }
}

分布式缓存技术

分布式缓存技术可以显著提高应用程序的性能，通过将常用的数据存储在内存中来减少对外部存储系统的访问。Java中常用的分布式缓存技术包括Redis和Ehcache。

Redis

Redis是一个开源的内存数据结构存储系统，可以用作数据库、缓存和消息中间件。Redis支持多种数据结构，如字符串、哈希表、列表、集合和有序集合。

Ehcache

Ehcache是一个纯Java的分布式缓存解决方案，广泛用于Web应用程序中。Ehcache可以缓存对象、查询结果等，以提高应用程序的性能。

示例代码

以下是一个简单的Redis客户端示例，展示了如何将数据存储到Redis中并从中检索数据。

存储数据

import redis.clients.jedis.Jedis;

public class RedisClient {
    public static void main(String[] args) {
        Jedis jedis = new Jedis("localhost");
        String key = "myKey";
        String value = "myValue";
        jedis.set(key, value);
        System.out.println("Stored " + value + " with key " + key);
        jedis.close();
    }
}

检索数据

import redis.clients.jedis.Jedis;

public class RedisClient {
    public static void main(String[] args) {
        Jedis jedis = new Jedis("localhost");
        String key = "myKey";
        String value = jedis.get(key);
        System.out.println("Retrieved " + value + " with key " + key);
        jedis.close();
    }
}
分布式协调与一致性

分布式系统中的一个关键问题是确保多个节点之间的数据一致性和协调。分布式协调和一致性算法是实现这一目标的重要工具。本节将介绍分布式锁和分布式事务等概念及其在Java中的实现。

分布式锁的概念与实现

分布式锁是一种在分布式系统中用于控制对共享资源访问的机制。分布式锁可以确保同一时间只有一个节点可以访问某个资源，从而避免数据不一致问题。Java中实现分布式锁可以使用Zookeeper、Redis等。

使用Zookeeper实现分布式锁

Zookeeper是一个分布式协调服务，广泛用于实现分布式锁、配置管理等功能。使用Zookeeper实现分布式锁的基本思路是创建一个临时节点，并通过监听节点的存在状态来控制锁的获取和释放。

示例代码

以下是一个简单的Zookeeper分布式锁实现示例。

锁管理器

import org.apache.zookeeper.CreateMode;
import org.apache.zookeeper.KeeperException;
import org.apache.zookeeper.ZooDefs;
import org.apache.zookeeper.ZooKeeper;
import org.apache.zookeeper.data.Stat;

import java.util.concurrent.CountDownLatch;

public class ZookeeperDistributedLock {
    private ZooKeeper zookeeper;
    private String lockPath;
    private CountDownLatch latch;
    private String lockNode;

    public ZookeeperDistributedLock(ZooKeeper zookeeper, String lockPath) {
        this.zookeeper = zookeeper;
        this.lockPath = lockPath;
    }

    public void acquireLock() throws InterruptedException, KeeperException {
        latch = new CountDownLatch(1);
        lockNode = zookeeper.create(lockPath + "/lock-", new byte[0],
                ZooDefs.Ids.OPEN_ACL_UNSAFE, CreateMode.EPHEMERAL_SEQUENTIAL);
        Stat stat = zookeeper.exists(lockPath, (watcher, event) -> {
            if (event.getType() == Event.EventType.NODE_CREATED) {
                latch.countDown();
            }
        });
        if (stat != null) {
            latch.await();
        }
        System.out.println("Lock acquired by " + lockNode);
    }

    public void releaseLock() throws InterruptedException, KeeperException {
        zookeeper.delete(lockNode, -1);
        System.out.println("Lock released by " + lockNode);
    }
}

使用示例

import org.apache.zookeeper.ZooKeeper;

import java.io.IOException;
import java.util.concurrent.CountDownLatch;

public class ZookeeperDistributedLockExample {
    public static void main(String[] args) throws IOException, InterruptedException, KeeperException {
        ZooKeeper zookeeper = new ZooKeeper("localhost:2181", 5000, event -> {
        });
        ZookeeperDistributedLock lock = new ZookeeperDistributedLock(zookeeper, "/lock");
        lock.acquireLock();
        // Perform critical section operations
        lock.releaseLock();
    }
}

分布式事务与一致性算法简介

分布式事务是指在分布式系统中执行的事务，它需要确保多个操作的原子性、一致性和持久性。分布式事务的实现可以使用两阶段提交（2PC）、三阶段提交（3PC）等算法。

两阶段提交（2PC）

两阶段提交是一种经典的分布式事务协议，它将事务的提交过程分为两个阶段：准备阶段和提交阶段。

  • 准备阶段：参与者（即执行事务的节点）向协调者（即事务的管理者）发送准备消息，表示它们已经准备好执行事务。
  • 提交阶段：协调者根据参与者在准备阶段的响应决定是否提交事务。如果所有参与者都准备好了，协调者发送提交消息；否则，发送回滚消息。

示例代码

以下是一个简单的两阶段提交示例。该示例模拟了两个参与者（Node1和Node2）和一个协调者（Coordinator）之间的通信过程。

协调者

import java.util.concurrent.ConcurrentHashMap;

public class Coordinator {
    private ConcurrentHashMap<String, String> participantStates = new ConcurrentHashMap<>();

    public void startTransaction(String participantId) {
        participantStates.put(participantId, "prepared");
    }

    public boolean commitTransaction(String participantId) {
        if (participantStates.get(participantId).equals("prepared")) {
            participantStates.put(participantId, "committed");
            return true;
        }
        return false;
    }

    public boolean rollbackTransaction(String participantId) {
        if (participantStates.get(participantId).equals("prepared")) {
            participantStates.put(participantId, "rolledBack");
            return true;
        }
        return false;
    }
}

参与者

public class Participant {
    private Coordinator coordinator;
    private String participantId;

    public Participant(Coordinator coordinator, String participantId) {
        this.coordinator = coordinator;
        this.participantId = participantId;
    }

    public void prepareTransaction() {
        coordinator.startTransaction(participantId);
    }

    public boolean commitTransaction() {
        return coordinator.commitTransaction(participantId);
    }

    public boolean rollbackTransaction() {
        return coordinator.rollbackTransaction(participantId);
    }
}

使用示例

public class TwoPhaseCommitExample {
    public static void main(String[] args) {
        Coordinator coordinator = new Coordinator();
        Participant node1 = new Participant(coordinator, "node1");
        Participant node2 = new Participant(coordinator, "node2");

        node1.prepareTransaction();
        node2.prepareTransaction();

        boolean node1Committed = node1.commitTransaction();
        boolean node2Committed = node2.commitTransaction();
        System.out.println("Node1 committed: " + node1Committed);
        System.out.println("Node2 committed: " + node2Committed);
    }
}
实战项目示例

本节将通过一个简单的分布式系统案例来展示如何使用Java构建分布式系统。该示例将包括服务发现、负载均衡和故障转移等功能，以演示分布式系统的基本构建步骤。此外，还将介绍在实际项目中可能遇到的常见问题及其解决方法。

使用Java构建简单的分布式系统案例

构建步骤

  1. 服务发现：使用Eureka作为服务注册中心，实现服务的注册和发现。
  2. 负载均衡：使用Ribbon实现客户端请求的负载均衡。
  3. 故障转移：使用Hystrix实现服务的熔断和降级。

示例代码

以下是一个简单的微服务案例，该案例包含服务注册、发现、负载均衡和故障转移等功能。

服务端代码

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
import org.springframework.cloud.netflix.ribbon.RibbonClient;
import org.springframework.cloud.netflix.hystrix.EnableHystrix;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

@SpringBootApplication
@EnableEurekaClient
@EnableRibbon
@EnableHystrix
public class ServiceApplication {
    public static void main(String[] args) {
        SpringApplication.run(ServiceApplication.class, args);
    }
}

@RestController
public class ServiceController {
    @GetMapping("/hello")
    public String sayHello() {
        return "Hello, Service!";
    }
}

客户端代码


import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
import org.springframework.cloud.openfeign.EnableFeignClients;
import org.springframework.cloud.netflix.ribbon.RibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClientConfiguration;
import org.springframework.cloud.netflix.ribbon.SerialFeignRibbonClient;
import org.springframework.cloud.netflix.ribbon.SerialRibbonClient;
点击查看更多内容
发表于 2024.11.20 19:47， 共 69 人浏览

本文原创发布于慕课网 ，转载请注明出处，谢谢合作

举报
为 TA 点赞

若觉得本文不错，就分享一下吧！

评论

作者其他优质文章

正在加载中

繁星点点滴滴

手记
篇
粉丝
67
获赞与收藏
333

关注作者，订阅最新文章

阅读免费教程

  • 推荐
  • 评论
  • 收藏
  • 共同学习，写下你的评论
感谢您的支持，我会继续努力的～
扫码打赏，你说多少就多少
赞赏金额会直接到老师账户
支付方式
打开微信扫一扫，即可进行扫码打赏哦
今天注册有机会得

100积分直接送

付费专栏免费学

大额优惠券免费领

立即参与 放弃机会
意见反馈 帮助中心 APP下载
官方微信

举报

0/150
提交
取消