急求解决一下下面这个问题

Question

开始我进入mysql建表的时候一直报错密码不对什么的，我就使用的匿名登录，没有用密码登陆进去了，但是写JDBC程序的时候要连接mysql，程序报错如下：（PS：应该怎么解决呢？急求！！）java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:964) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3970) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3906) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:873) at com.mysql.jdbc.MysqlIO.secureAuth411(MysqlIO.java:4417) at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1278) at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2253) at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2284) at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2083) at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:806) at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:408) at com.mysql.jdbc.Util.handleNewInstance(Util.java:425) at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:410) at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:328) at java.sql.DriverManager.getConnection(DriverManager.java:664) at java.sql.DriverManager.getConnection(DriverManager.java:247) at TestJDBC.main(TestJDBC.java:16)源程序如下：import java.sql.Connection;import java.sql.DriverManager;import java.sql.ResultSet;import java.sql.SQLException;import java.sql.Statement;public class TestJDBC {    public static void main(String[] args){        ResultSet rs=null;    Statement stmt=null;    Connection conn=null;    try{    Class.forName("com.mysql.jdbc.Driver");    conn=DriverManager.getConnection("jdbc:mysql://localhost:3306/yuangong","root","root");    stmt=conn.createStatement();    rs=stmt.executeQuery("select* from yuangongbiao");    while(rs.next()){    System.out.print(rs.getInt("employee_id"));    System.out.print(rs.getInt("name"));    System.out.print(rs.getInt("email"));    System.out.print(rs.getInt("salary"));    System.out.print(rs.getInt("birthday"));    }    }catch(ClassNotFoundException e){    e.printStackTrace();        }catch(SQLException e){    e.printStackTrace();    }finally{    try{    if(rs!=null){    rs.close();    rs=null;    }    if(stmt!=null){    stmt.close();    stmt=null;    }    }catch(SQLException e){        e.printStackTrace();    }    }        }}

Answer 1

while(rs.next())循环里面写错了，你这里写的都是getInt(""),兄弟，你这不可能都是整形数据吧，应该是

getString("name"),getString("email"),......里面的数据是什么类型，就获取什么类型的

Answer 2

第一行就说明原因了，用户名和密码不对呗。Google一下MySQL改密码