Question

我的控制器类中包含以下代码

public class GoodsController{

@AutoWired
Private GoodsService goodsService;
public ResponseEntity<String> startCall(HttpServletRequest request) {

        ResponseEntity<String> responseEntity = null;

        try {
            ResponseBean respBean = goodsService.startCall(request);
            HttpHeaders responseHeaders = new HttpHeaders();

            if(request.getAttribute(SessionConstants.GOODS_SESS) != null){
                responseHeaders.set(SessionConstants.GOODS_SESS,      request.getAttribute(SessionConstants.GOODS_SESS).toString());
            }

            responseEntity = new ResponseEntity<>(SessionUtil.objToJson(respBean, respBean), responseHeaders,
                    HttpStatus.valueOf(respBean.getStatus()));

            return responseEntity;

        } catch (AlightSessionException e) {
            StringBuilder message = new StringBuilder("{\"message\": \"error:\""+e.getMessage()+", ")
                    .append("\"status\":\"400\"}");
            responseEntity = new ResponseEntity<>(message.toString(), HttpStatus.BAD_REQUEST);
            ErrorLogEventHelper.logErrorEvent(SessionController.class.getName(), message.toString(), "startSessionForPerson()", e,
                    ErrorLogEvent.ERROR_SEVERITY);      
            return responseEntity;
        }

    }
}

我的TestClass中有以下代码

   public class GoodsControllerTest{

    MockHttpServletRequestBuilder request = 

    MockMvcRequestBuilders
                    .post("/startCall").sessionAttr("personToken", "eyjpc");

            ResultActions result = mockMvc.perform(request);
             result.andExpect(MockMvcResultMatchers.status().isOk());

    }
  }

我在执行过程中遇到以下错误，请帮帮我。

org.springframework.web.util.NestedServletException：请求处理失败；嵌套的异常是java.lang.NullPointerException 在org.springframework.web.servlet.FrameworkServlet.processRequest（FrameworkServlet.java:982）在org.springframework.web.servlet.FrameworkServlet.doPost（FrameworkServlet.java:872）在javax.servlet.http.HttpServlet.service（HttpServlet.java:648）在org.springframework.web.servlet.FrameworkServlet.service（FrameworkServlet.java:846）在org.springframework.test.web.servlet.TestDispatcherServlet.service（TestDispatcherServlet.java:65）在javax.servlet.http.HttpServlet.service（HttpServlet.java:729）在org.springframework.mock.web.MockFilterChain $ ServletFilterProxy.doFilter（MockFilterChain.java:167）在org.springframework.mock.web.MockFilterChain.doFilter（MockFilterChain.java:134）在org.springframework.test.web.servlet.MockMvc.perform（MockMvc.java:155）在com.alight.upoint.sessionservice.controller.SessionControllerTest.testGetEligiblePlans（SessionControllerTest.java:57）在org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate（RunBeforeTestMethodCallbacks.java:75）在org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate（RunAfterTestMethodCallbacks.java:86）在org.springframework.test.context.junit4.statements.SpringRepeat.evaluate（SpringRepeat.java:84）在org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild（SpringJUnit4ClassRunner.java:252）在org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild（SpringJUnit4ClassRunner.java:94）在org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate（RunBeforeTestClassCallbacks.java:61）在org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate（RunAfterTestClassCallbacks.java:70）在org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run（SpringJUnit4ClassRunner.java:191）造成原因：java.lang.NullPointerException 在com.alight.upoint.sessionservice.controller.SessionController.startSessionForPerson（SessionController.java:51）在org.springframework.web.method.support.InvocableHandlerMethod.doInvoke（InvocableHandlerMethod.java:205）在org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest（InvocableHandlerMethod.java:133）在org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle（ServletInvocableHandlerMethod.java:116）在org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod（RequestMappingHandlerAdapter.java:827）在org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal（RequestMappingHandlerAdapter.java:738）在org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle（AbstractHandlerMethodAdapter.java:85）在org.springframework.web.servlet.DispatcherServlet.doDispatch（DispatcherServlet.java:963）在org.springframework.web.servlet.DispatcherServlet.doService（DispatcherServlet.java:897）在org.springframework.web.servlet.FrameworkServlet.processRequest（FrameworkServlet.java:970） ...还有17个

Answer 1

您需要使用MockMvcBuilders.standaloneSetup与您的控制器一起创建应用程序上下文，然后使用此mockMcv调用您的控制器API，即方法

您可以参考this post了解更多详细信息。

执行模拟控制器时发生NullPointerexception

1 个答案: