今天发现一个简单的错误,详细如下:
type Exception report
message Request processing failed; nested exception is org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.PersistenceException:
description The server encountered an internal error that prevented it from fulfilling this request.
exception
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: Failed to obtain JDBC Connection; nested exception is java.sql.SQLException: jdbc:mysql://127.0.0.1:3306/data_management?characterEncoding=utf-8
### The error may exist in com/aliyun/ssm/dao/ProductDao.xml
### The error may involve com.aliyun.