package connect;

import java.sql.*;

public class Get_message {

 public String name;  public String datetime;  public int   no;  public String content; public static void main(String[] args) throws Exception{    Connection con;  Statement stmt;  ResultSet rs;     Class.forName("com.mysql.jdbc.Driver");     con = DriverManager.getConnection("jdbc:mysql://localhost:3306/message","User=root","Password=123");  stmt = con.createStatement();  rs = stmt.executeQuery("SELECT no,name,datetime,content FROM message_save ");  while(rs.next())  {   System.out.println(rs.getString("name"));   rs.getString("datetime");   rs.getInt("no");   rs.getString("content");  } } }

错误代码提示：

Exception in thread "main" java.sql.SQLException: Access denied for user (using password: YES)

 at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1073)  at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3597)  at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3529)  at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:935)  at com.mysql.jdbc.MysqlIO.secureAuth411(MysqlIO.java:4101)  at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1300)  at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2337)  at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2370)  at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2154)  at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:792)  at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47)  at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)  at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)  at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)  at java.lang.reflect.Constructor.newInstance(Constructor.java:513)  at com.mysql.jdbc.Util.handleNewInstance(Util.java:411)  at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:381)  at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:305)  at java.sql.DriverManager.getConnection(DriverManager.java:582)  at java.sql.DriverManager.getConnection(DriverManager.java:185)  at connect.Get_message.main(Get_message.java:16)