jdbc 连接mysql8.0

最新推荐文章于 2025-03-05 17:34:51 发布

var1994

最新推荐文章于 2025-03-05 17:34:51 发布

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文章标签： jdbc

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在使用jdbc连接MySQL8.0时遇到时区识别错误，服务器时间区域值'ÖÐ¹ú±ê×¼Ê±¼ä'未被识别。为启用时区支持，需要配置服务器或JDBC驱动程序（通过serverTimezone配置属性）以使用更具体的时区值。此外，还提到了jdbc驱动的driverClassName已改变，不带'cj'的版本已被标记为过时，并且url连接信息中添加了zone信息来示例解决方法。

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jdbc连接mysql8.0 报错：

java.sql.SQLException: The server time zone value 'ÖÐ¹ú±ê×¼Ê±¼ä' is unrecognized or represents more than one time zone. You must configure either the server or JDBC driver (via the serverTimezone configuration property) to use a more specifc time zone value if you want to utilize time zone support.

conn = (Connection) DriverManager.getConnection("jdbc:mysql://localhost:3306/nq123?&user=root&password=941125");

改成：

conn = (Connection) DriverManager.getConnection("jdbc:mysql://localhost:3306/nq123?useSSL=false&serverTimezone=Hongkong&useUnicode=true&characterEncoding=utf-8&user=root&password=941125");

还有：jdbc 驱动 driverclassname 改变了原先的不加cj的已经被标记为过时

url连接信息后边加入了zone信息

示例：

package zju_001.maven_test_1;

import java.sql.DriverManager;
import java.sql.SQLException;
//import com.mysql.jdbc.Connection;
import java.sql.Connection;
//import com.mysql.cj.jdbc.Driver
import java.sql.DriverManager;
import java.sql.SQLException;

public class JDBC_test {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		String dbUrl = "jdbc:mysql://localhost:3306/mybatisDemo?useUnicode=true&characterEncoding=utf-8&serverTimezone=GMT";
		String dbUser = "root";
		String dbPwd = "941125";
		Connection conn = null;
		
		try {
			//Class.forName("com.mysql.jdbc.Driver");
			Class.forName("com.mysql.cj.jdbc.Driver");
			conn = (Connection) DriverManager.getConnection("jdbc:mysql://localhost:3306/nq123?useSSL=false&serverTimezone=Hongkong&useUnicode=true&characterEncoding=utf-8&user=root&password=941125");
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (ClassNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
}
//Notice, do not import com.mysql.cj.jdbc.*
//or you will have problems!

class LoadDriver {
 public static void main(String[] args) {
     try {
         // The newInstance() call is a work around for some
         // broken Java implementations

         Class.forName("com.mysql.cj.jdbc.Driver").newInstance();
     } catch (Exception ex) {
         // handle the error
     }
 }
}