调用TagUtil出错

ty2510

1. 
   
2. public void datagrid3(HttpServletRequest request, HttpServletResponse response, DataGrid dataGrid) {
   
3.                 String matrixName =request.getParameter("matrixName");
   
4.                 List<Map<String, Object>> li = tdao.select(matrixName);
   
5.             List<Map<String, Object>> list=mDao.select(matrixName);
   
6.                 dataGrid.setResults(li);
   
7.                 dataGrid.setResults(list);
   
8.                 TagUtil.datagrid(response, dataGrid);
   
9.         }
   
10. 
    
11. 
    
12. java.lang.NullPointerException
    
13. 
    
14.         at org.jeecgframework.tag.core.easyui.TagUtil.getJson(TagUtil.java:340)
    
15.         at org.jeecgframework.tag.core.easyui.TagUtil.datagrid(TagUtil.java:472)
    
16.         at com.towery.zbgl.demo3.controller.TModelalgorithmController.datagrid3(TModelalgorithmController.java:189)
    
17.         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    
18.         at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    
19.         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    
20.         at java.lang.reflect.Method.invoke(Method.java:498)
    
21.         at org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:175)
    
22.         at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:446)
    
23.         at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:434)
    
24.         at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:938)
    
25.         at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:870)
    
26.         at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:961)
    
27.         at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:863)
    
28.         at javax.servlet.http.HttpServlet.service(HttpServlet.java:648)
    
29.         at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:837)
    
30.         at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
    
31.         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:292)
    
32.         at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
    
33.         at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    
34.         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
    
35.         at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
    
36.         at org.jeecgframework.core.aop.GZipFilter.doFilter(GZipFilter.java:93)
    
37.         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
    
38.         at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
    
39.         at com.alibaba.druid.support.http.WebStatFilter.doFilter(WebStatFilter.java:140)
    
40.         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
    
41.         at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
    
42.         at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
    
43.         at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
    
44.         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
    
45.         at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
    
46.         at org.springframework.orm.hibernate4.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:150)
    
47.         at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
    
48.         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
    
49.         at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
    
50.         at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212)
    
51.         at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
    
52.         at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
    
53.         at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141)
    
54.         at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
    
55.         at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616)
    
56.         at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
    
57.         at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:528)
    
58.         at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1100)
    
59.         at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:687)
    
60.         at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2508)
    
61.         at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2497)
    
62.         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    
63.         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    
64.         at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    
65.         at java.lang.Thread.run(Thread.java:745)

复制代码

其中li和list都能取到值，但是dataGrid只能获取到list的值，并且TagUtil.datagrid(response, dataGrid);会出错