项目场景：
项目场景：在对控制层使用(powermockito+junit+mockmvc)做单元测试,出现版本兼容性bug
问题描述：
对查询设备历史状态的接口进行单元测试时，代码一切正常，控制台打印无报错，junit显示报错。
测试代码如下：
package com.fotile.cloud.controller;import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;import java.util.ArrayList;
import java.util.List;import javax.annotation.Resource;import org.junit.Test;
import org.powermock.api.mockito.PowerMockito;
import org.powermock.core.classloader.annotations.PrepareForTest;
import org.springframework.context.ApplicationContext;
import org.springframework.http.HttpHeaders;
import org.springframework.http.MediaType;
import org.springframework.test.web.servlet.ResultActions;
import org.springframework.test.web.servlet.request.MockHttpServletRequestBuilder;
import org.springframework.test.web.servlet.request.MockMvcRequestBuilders;
import org.springframework.test.web.servlet.result.MockMvcResultHandlers;import com.fotile.cloud.admin.idc.request.IDCDeviceInfo;
import com.fotile.cloud.controller.support.SpringJunit4MockSupport;
import com.fotile.cloud.entity.tsl.DataTypeDes;
import com.fotile.cloud.entity.tsl.ProductAtTSL;
import com.fotile.cloud.entity.tsl.TSLPropertyDetail;
import com.fotile.cloud.facade.tsl.TSLService;
import com.google.gson.Gson;@PrepareForTest({
IDCControllerTest.class })
public class IDCControllerTest extends SpringJunit4MockSupport
{
@Resourceprivate ApplicationContext context;Gson gson = new Gson();private HttpHeaders getHeaders(){
String token = "0nIilFSQ50R0hkQKhXbiFUVvtmewxEeutEOiojIt9GZuFmciwiI4JiOi02bk5WYSBHchJCLiQjM5YmNyYGO1kjM0MTZlJGZmRDN3gTYycDZ2AjZhJzMiojIklmIsIiNwIiOiUGc5RnI7ZDM="; // TODOHttpHeaders httpHeaders = new HttpHeaders();httpHeaders.set("Access-Token", token);httpHeaders.set("Content-Type", "application/json");return httpHeaders;}@Testpublic void testHistoryStatusInfo() throws Exception{
TSLService tSLService = context.getBean(TSLService.class);// 准备预判返回情况String productId = getRequestParm().getProductId();PowerMockito.when(tSLService.getProductTSLRelation(productId)).thenReturn(getProductAtTSL());PowerMockito.when(tSLService.getTSLPropertyInfo(getProductAtTSL().getTslId(), getRequestParm().getPropertyName())).thenReturn(getTSLPropertyDetail());// 模拟请求String json = gson.toJson(getRequestParm());String url = "/product/historyStatusInfo";MockHttpServletRequestBuilder content = MockMvcRequestBuilders.post(url).headers(getHeaders()).content(json).contentType(MediaType.APPLICATION_JSON);ResultActions resultActions = mockmvc.perform(content);resultActions.andExpect(status().isOk()).andDo(MockMvcResultHandlers.print()).andReturn();}// 准备请求参数private IDCDeviceInfo getRequestParm(){
String productId = "e3239b118f9af0b46f1409064aecb0aa";String startDay = "2020-04-01";String endDay = "2020-04-30";String propertyName = "故障号";Integer statusNum = 0;Integer pageSize = 10;Integer pageNum = 1;String order = "desc";return new IDCDeviceInfo(productId, startDay, endDay, propertyName, statusNum, pageNum, pageSize, order);}// 准备内部方法返回数据ProductAtTSLprivate ProductAtTSL getProductAtTSL(){
int id = 115;String productId = "e3239b118f9af0b46f1409064aecb0aa";Long tslId = 5100000164L; // TODOProductAtTSL productAtTSL = new ProductAtTSL();productAtTSL.setId(id);productAtTSL.setProductId(productId);productAtTSL.setTslId(tslId);return productAtTSL;}// 准备内部方法返回数据TSLPropertyDetailprivate TSLPropertyDetail getTSLPropertyDetail(){
List<DataTypeDes> list = new ArrayList<DataTypeDes>();DataTypeDes dataTypeDes = new DataTypeDes();dataTypeDes.setValue(0);dataTypeDes.setName("无异常");list.add(dataTypeDes);TSLPropertyDetail tslPropertyDetail = new TSLPropertyDetail();tslPropertyDetail.setDataSpecs(list);String identifier = "ErrorNum";tslPropertyDetail.setIdentifier(identifier);return tslPropertyDetail;}
报错如下：
原因分析：
这种报错为servlet版本和spring的版本兼容问题
Spring V4.1.0+的版本在不支持Servlet3.0的应用服务器上跑时会报以下错误：
NoSuchMethodError: javax.servlet.http.HttpServletResponse.getStatus()I
比如说：tomcat 7以下的版本、jboss 4.2.3以下的版本
此时我的Tomcat未被build path引入使用的是eclipse自带的servlet 版本较低
解决方案：
引入tomcat
