*(紧急)部署到阿里云服务器之后出现500错误,提示空指针异常**
来源:3-3 完成第一个Restful接口
qq_慕莱坞7599538
2020-05-24
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HTTP Status 500 – Internal Server Error
Type Exception Report
Message java.lang.NullPointerException
Description The server encountered an unexpected condition that prevented it from fulfilling the request.
Exception
javax.servlet.ServletException: java.lang.NullPointerException org.glassfish.jersey.servlet.WebComponent.serviceImpl(WebComponent.java:434) org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:372) org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:389) org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:342) org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:229) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
Root Cause
java.lang.NullPointerException net.qiujuer.web.italker.push.utils.Hib.query(Hib.java:111) net.qiujuer.web.italker.push.factory.UserFactory.findByPhone(UserFactory.java:46) net.qiujuer.web.italker.push.service.AccountService.register(AccountService.java:66) sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) java.lang.reflect.Method.invoke(Method.java:498) org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory.lambda$static$0(ResourceMethodInvocationHandlerFactory.java:74) org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher$1.run(AbstractJavaResourceMethodDispatcher.java:144) org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke(AbstractJavaResourceMethodDispatcher.java:161) org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$TypeOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:247) org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:99) org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:388) org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:346) org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:102) org.glassfish.jersey.server.ServerRuntime$2.run(ServerRuntime.java:337) org.glassfish.jersey.internal.Errors$1.call(Errors.java:271) org.glassfish.jersey.internal.Errors$1.call(Errors.java:267) org.glassfish.jersey.internal.Errors.process(Errors.java:315) org.glassfish.jersey.internal.Errors.process(Errors.java:297) org.glassfish.jersey.internal.Errors.process(Errors.java:267) org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:280) org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:316) org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:1084) org.glassfish.jersey.servlet.WebComponent.serviceImpl(WebComponent.java:418) org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:372) org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:389) org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:342) org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:229) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
写回答
1回答
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net.qiujuer.web.italker.push.factory.UserFactory.findByPhone(UserFactory.java:46)
错误在这一步发生的,可以定位一下这里的代码,核对一下看看是不是接收的参数异常之类的。
另外这里是数据库的操作,也需要核对一下是不是数据库的初始化异常了,比如没有链接到数据库之类的。
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