eclipse链接MySQL链接不上

Question

链接代码

package com.sr.conn;
import java.sql.*;
public class Conn {
    public Connection getConn(){
        Connection conn = null;
          try{
              Class.forName("com.mysql.jdbc.Driver");
              String url = "jdbc:mysql://localhost:3306/testb?useUnicode=false&characterEncoding=utf-8";
              String username = "root";
              String password = "123456";
              conn = DriverManager.getConnection(url,username,password);
                            
          }catch(Exception e){
              e.printStackTrace();
          }
          return conn;

Answer 1

你的数据库是mysql8吧

package com.sr.conn;
import java.sql.*;
public class Conn {
    public Connection getConn(){
        Connection conn = null;
          try{
              Class.forName("com.mysql.cj.jdbc.Driver");
              String url = "jdbc:mysql://localhost:3306/testb?useUnicode=false&characterEncoding=utf-8&serverTimezone=UTC";
              String username = "root";
              String password = "123456";
              conn = DriverManager.getConnection(url,username,password);
          }catch(Exception e){
              e.printStackTrace();
          }
          return conn;