使用IDEA启动maven项目,报错连接MySQL数据库失败,尝试用IDEA的database插件,连接本地MySQL库(Windows10本机搭建)报错结果如下: [08S01] Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. java.io....
一、问题现状描述 使用IDEA启动maven项目,报错连接MySQL数据库失败,尝试用IDEA的database插件,连接本地MySQL库(Windows10本机搭建) 报错结果如下: [08S01] Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the se...
idea无法正常使用database功能 今天突然发现idea无法正常使用database功能了,报错:08S10 [08S01] Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. No appropriate protocol (protocol is disabled or ci...
idea中mybatis连接数据库失败 报错信息如下: org.apache.ibatis.exceptions.PersistenceException: ### Error querying database. Cause: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure The last packet successfully received from the server was 634 milliseconds ago. The last p...
在m1 macOS 上运行 IDEA,通过 IDEA 连接虚拟机 CentOS 的 mysql。通过在 IDEA 配置对应版本的驱动,测试连接时直接提示连接失败。报错信息如下: Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. 看...
问题2:连接失败,提示“Unknown database” 这表示指定的数据库不存在。请确保: 数据库名称输入正确。 数据库已经创建。 问题3:连接失败,提示“Communications link failure” 这可能是由于网络问题或 MySQL 服务未运行。请检查: 确保MySQL 服务正在运行。
946 [localhost-startStop-1] WARN o.s.boot.autoconfigure.orm.jpa.Database...
Caused by: org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is java.sql.SQLException: Connections could not be acquired from the underlying database! at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:81) ...
IDEA 与MySQ..package MysqlTestDemo;import java.sql.Connection;import java.sql.DriverManager;import java.sql.SQLEx
7报错jdbc与数据库链接:发现程序一启动就会出现CommunicationsException: Communications link failure 检查你的数据库连接地址(配置文件中的url)是否正确. 8报错java.sql.SQLException: The server time zone value ‘Öйú±ê׼ʱ¼ä’ is unrecognized or represents more than one time zone. ...