解决Process finished with exit code 1

Question

idea中的web工程
代码如下：

package com.dos.util;

import java.sql.*;

public class JDBCUtil {
    private static String driverName = "com.mysql.cj.jdbc.Driver";
    private static String url = "jdbc:mysql://localhost:3306/dormitory";
    private static String user = "root";
    private static String password = "123456";

    static {

        try {
            Class.forName(driverName);
        } catch (ClassNotFoundException e) {
            throw new RuntimeException(e);
        }


    }

    public static Connection getConnection(){
        Connection connection = null;
        try {
            connection = DriverManager.getConnection(url,user,password);
        } catch (SQLException e) {
            throw new RuntimeException(e);
        }
        return connection;

    }

    public static void release(Connection connection, Statement statement, ResultSet resultSet){
        try {
            if (connection != null){
                connection.close();
            }
            if(statement != null){
                statement.close();
            }
            if (resultSet != null){
                resultSet.close();
            }
        } catch (SQLException e) {
            throw new RuntimeException(e);
        }
    }

    public static void main(String[] args) {
        System.out.println(JDBCUtil.getConnection());
    }
}

运行出现Process finished with exit code 1

有什么解决的办法？或者是因为什么出错？

Answer 1

方法一：URL中加入时区

String url = "jdbc:mysql://localhost:3306/test_db?characterEncoding=utf-8&serverTimezone=Asia/Shanghai"

方法二：修改MySQL的time_zone
需要改变数据库的配置：命令行登陆mysql，修改time_zone变量的值。

set global time_zone ='+8:00';

方法三：调整jdbc驱动的版本
mysql-jdbc 6.0以上的版本在连接数据库时，需要在url后面指定时区。

<dependency>
   <groupId>mysql</groupId>
   <artifactId>mysql-connector-java</artifactId>
   <version>8.0.11</version>
</dependency>