HTTP Status 500 - type Exception report message description The server encountered an internal error () that prevented it from fulfilling this request. exception org.apache.jasper.JasperException: java.lang.NullPointerException org.apache.jasper.serv
Exception in thread "HouseKeeper" java.lang.NullPointerException at org.logicalcobwebs.proxool.HouseKeeperController.getHouseKeeperToRun(HouseKeeperController.java:52) at org.logicalcobwebs.proxool.HouseKeeperThread.run(HouseKeeperThread.java:33
mapper配置文件中的namespace没有填:而且namespase的值应该填为:mapper的权限定名:否则还是会抛出异常 org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in class path resource [applicationContext-Dao.xml]: Invocation of ini
转载自:http://m.blog.csdn.net/article/details?id=49862243 错误信息: publishing to tomcat v8.0 server at localhost has encontered a problem Could not publish to the server. java.lang.NullPointerException 产生错误的操作: 解决方法: 1.找到Tomcat的配置文件“context.xml”,在Context标签