4 HTTP状态 500 - 内部服务器错误

HTTP状态 500 - 内部服务器错误

问题：

类型 异常报告
消息 Request processing failed; nested exception is org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.PersistenceException:
描述 服务器遇到一个意外的情况，阻止它完成请求。
例外情况
org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.PersistenceException: 
### Error querying database.  Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is java.sql.SQLException: Cannot create PoolableConnectionFactory (Access denied for user 'root'@'localhost' (using password: YES))
### The error may exist in jee/support/dao/AdminDao.xml
### The error may involve jee.support.dao.AdminDao.findByNameAndPwd
### The error occurred while executing a query
### Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is java.sql.SQLException: Cannot create PoolableConnectionFactory (Access denied for user 'root'@'localhost' (using password: YES))
	org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:982)
	org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:652)
	org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:733)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
	org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197)
	org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)

　

这个是主要是因为数据 库连接错误导致的

　

解决问题：

原本：

jdbc.driver=com.mysql.cj.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/ssmbuild?useUnicode=true&characterEncoding=utf8&useSSL=true
jdbc.username=root
jdbc.password=123456

　修改完：

jdbc.driver=com.mysql.jdbc.Driver
#??????MYSQL8.0+??????????;&serverTimezone=Asia/Shanghai
jdbc.url=jdbc:mysql://localhost:3306/ssmbuild?useUnicode=true&characterEncoding=utf8&useSSL=true
jdbc.username=root
jdbc.password=root

　　

　

这个可以运行的啦！