Springboot：无法点击网址

Question

运行 Main 类后，我无法获得输出。Spring Boot 新手控制器@Controller public class WelcomeController {    private static final String welcomemsg = "Welcome Mr. %s!";    @GetMapping("/welcome/user")    @ResponseBody    public Welcome welcomeUser(@RequestParam(name = "name", required = false, defaultValue = "Java Fan") String name)    {        return new Welcome(String.format(welcomemsg, name));    } }主班package com.beans.mainsrc;import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.SpringBootApplication;@SpringBootApplication(scanBasePackages = { "com.beans" })public class DemoApplication {    public static void main(String[] args)    {        SpringApplication.run(DemoApplication.class, args);    }}有关运行主类的控制台详细信息2018-09-28 00:40:01.268  INFO 2304 --- [           main] com.beans.mainsrc.DemoApplication        : Starting DemoApplication on DESKTOP-551C51M with PID 2304 (F:\springbootdemo\demo\target\classes started by sparsh in F:\springbootdemo\demo) 2018-09-28 00:40:01.273  INFO 2304 --- [           main] com.beans.mainsrc.DemoApplication        : No active profile set, falling back to default profiles: default

Answer 1

看起来您的 servlet 容器没有启动。请尝试添加此 maven 依赖项

    <dependency>

        <groupId>org.springframework.boot</groupId>

        <artifactId>spring-boot-starter-web</artifactId>

    </dependency>

您可以删除这些依赖项：

 <dependency>

    <groupId>org.springframework</groupId>

    <artifactId>spring-web</artifactId>

 </dependency>

 <dependency>

    <groupId>org.springframework.boot</groupId>

    <artifactId>spring-boot-starter</artifactId>

 </dependency>

它们由建议的启动器提供。