我最近在用Maven做一个Javaweb项目,但是今天碰到了一个问题,我复制了报错信息百度搜索,上csdn,stackoverflow,等网站都没有找到解决的方法,我感觉是数据库的问题,但是我尝试过用JDBC来操作数据库,可以正常连接。
数据库账号密码我确认过没有错误,我是跟着视频学的,刚刚接触java不久,希望能够得到大神的帮助,感激不尽
全部报错信息如下:
java.lang.NullPointerException
at java.util.Properties$LineReader.readLine(Properties.java:434)
at java.util.Properties.load0(Properties.java:353)
at java.util.Properties.load(Properties.java:341)
at cn.itcast.travel.util.JDBCUtils.<clinit>(JDBCUtils.java:31)
at cn.itcast.travel.dao.impl.UserDaoImpl.<init>(UserDaoImpl.java:10)
at cn.itcast.travel.service.impl.UserServiceImpl.<init>(UserServiceImpl.java:9)
at cn.itcast.travel.web.servlet.RegistUserServlet.doPost(RegistUserServlet.java:35)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:647)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:936)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1004)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
六月 21, 2019 10:40:52 下午 org.apache.catalina.core.StandardWrapperValve invoke
严重: Servlet.service() for servlet [cn.itcast.travel.web.servlet.RegistUserServlet] in context with path [/travel] threw exception
java.lang.IllegalArgumentException: Property 'dataSource' is required
at org.springframework.jdbc.support.JdbcAccessor.afterPropertiesSet(JdbcAccessor.java:135)
at org.springframework.jdbc.core.JdbcTemplate.<init>(JdbcTemplate.java:169)
at cn.itcast.travel.dao.impl.UserDaoImpl.<init>(UserDaoImpl.java:10)
at cn.itcast.travel.service.impl.UserServiceImpl.<init>(UserServiceImpl.java:9)
at cn.itcast.travel.web.servlet.RegistUserServlet.doPost(RegistUserServlet.java:35)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:647)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:936)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1004)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
各位,我把项目上传到了百度云,里面的代码我都已经写好了,只要启动项目,在注册页面上填写注册信息,点击提交,控制台就会报错。数据库的代码就在项目的travel.sql文件中,
感兴趣有时间的可以帮忙看一下我代码究竟那里出错了,不感兴趣的可以忽略这段话,如果不是实在没有头绪,我也不会做伸手党,这已经是第二天了,今天在解决不了,就要跳过项目学框架了。谢谢各位啦
链接:https://pan.baidu.com/s/1KImj8iaxV9xy-cv5ri0LXg
提取码:fzwk
复制这段内容后打开百度网盘手机App,操作更方便哦