错误描述：
null错误信息：
java.lang.NullPointerException at cn.zhaopin.person.controller.MobileJobSearchController.exactSearchJob(MobileJobSearchController.java:247) at sun.reflect.GeneratedMethodAccessor796.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219) at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132) at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686) at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936) at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:827) at javax.servlet.http.HttpServlet.service(HttpServlet.java:119) at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812) at javax.servlet.http.HttpServlet.service(HttpServlet.java:96) at com.caucho.server.dispatch.ServletFilterChain.doFilter(ServletFilterChain.java:109) at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at com.caucho.server.dispatch.FilterFilterChain.doFilter(FilterFilterChain.java:89) at com.caucho.server.webapp.WebAppFilterChain.doFilter(WebAppFilterChain.java:183) at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:287) at com.caucho.server.http.HttpRequest.handleRequest(HttpRequest.java:792) at com.caucho.network.listen.TcpSocketLink.dispatchRequest(TcpSocketLink.java:675) at com.caucho.network.listen.TcpSocketLink.handleRequestsImpl(TcpSocketLink.java:637) at com.caucho.network.listen.TcpSocketLink.handleRequests(TcpSocketLink.java:588) at com.caucho.network.listen.TcpSocketLink$AcceptTask.doTask(TcpSocketLink.java:1175) at com.caucho.network.listen.TcpSocketLink$ConnectionReadTask.runThread(TcpSocketLink.java:1108) at com.caucho.network.listen.TcpSocketLink$AcceptTask.run(TcpSocketLink.java:1142) at com.caucho.env.thread.ResinThread.runTasks(ResinThread.java:182) at com.caucho.env.thread.ResinThread.run(ResinThread.java:126)