搜索结果
查询Tags标签： runners，共有 9条记录-
MyBatis：Caused by: java.lang.NullPointerException
问题 完整报错信息： log4j:WARN No appenders could be found for logger (org.apache.ibatis.logging.LogFactory). log4j:WARN Please initialize the log4j system properly. log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.or…
2022/4/15 1:13:02 人评论 次浏览 -
com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure The last packe
错误产生环境使用JDBC连接MySQL数据库时产生错误描述 com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failureThe last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from …
2021/10/18 2:10:49 人评论 次浏览 -
com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure The last packe
错误产生环境使用JDBC连接MySQL数据库时产生错误描述 com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failureThe last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from …
2021/10/18 2:10:49 人评论 次浏览 -
解决 Could not find resource com/baidou/dao/UserMapper.xml
报错信息如下： java.lang.ExceptionInInitializerErrorat com.baidou.test.UserDaoTest.getUserList(UserDaoTest.java:14)at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.ja…
2021/10/4 23:14:57 人评论 次浏览 -
解决 Could not find resource com/baidou/dao/UserMapper.xml
报错信息如下： java.lang.ExceptionInInitializerErrorat com.baidou.test.UserDaoTest.getUserList(UserDaoTest.java:14)at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.ja…
2021/10/4 23:14:57 人评论 次浏览 -
Could not find resource com\atguigu\dao\StudentDao.xm，找不到存放sql语句的mapper文件而出现错误
使用maven工程mybatis操作数据库创建的mapper文件没有放到resource资源文件下，编译的时候出现以下错误 org.apache.ibatis.exceptions.PersistenceException: ### Error building SqlSession. ### The error may exist in com\atguigu\dao\StudentDao.xml ### Cause: or…
2021/6/27 19:51:42 人评论 次浏览 -
Cannot proxy target class because CGLIB2 is not available. Add CGLIB to the class path or specify pr
org.springframework.beans.factory.BeanCreationException: Error creating bean with name userService defined in file [C:\myeclipseenvironment\workspace\springworkspace\Spring_019_Spring_Hibernate_Transaction_Annotation\bin\com\spring\service\UserService…
2021/6/20 23:56:52 人评论 次浏览 -
Mybatis Error building SqlSession.
题主本来就傻。。。。 先前遇到这个问题，自己解决了，再来温习发现自己居然解决不了。天哪，这不，又害我两小时。。。。。呜呜呜 好了 进入正题。。你们是否遇见这样的错误？？？ java.lang.ExceptionInInitializerError at com.bing.dao.MyBatisTest.test1(MyBatisTest…
2021/5/18 2:55:23 人评论 次浏览 -
Web - php连接数据库
获取数据表的全部信息并返回json编码 <?php$host = "127.0.0.1"; // 服务器地址$username = "root"; // 用户名$password = ""; // 密码$databaseName = "raceinfo"; // 数据库名// 进行查询操作的sql语句$query = &qu…
2021/5/13 2:25:28 人评论 次浏览
