我有一个简单的示例设置来使用MockMvc对Spring Controller ModelAndView进行单元测试，但是响应总是空的，即使在调试中我可以看到控制器代码被执行。
下面是代码：
/源代码/主/java/控制器/MvcController.java
package controller;
import java.util.HashMap;
import java.util.Map;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;
@Controller
public class MvcController {
@RequestMapping("/hello/{id}")
public ModelAndView hello(@PathVariable("id") String id) {
Map<String, String> model = new HashMap<>();
ModelAndView modelAndView = new ModelAndView("hello", model);
return modelAndView;
}
}/源代码/主文件/Web应用程序/Web-INF/jsp/您好.jsp
<%@ taglib prefix="spring" uri="http://www.springframework.org/tags"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<%@ taglib prefix="e"
uri="https://www.owasp.org/index.php/OWASP_Java_Encoder_Project"%>
<%@ page contentType="text/html; charset=UTF-8"%>
<!DOCTYPE html>
<html>
<head>
</head>
<body>HELLO WORLD
</body>
</html>/源代码/测试/java/控制器/MvcControllerTest.java
package controller;
import static org.assertj.core.api.Assertions.assertThat;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.mock.web.MockHttpServletResponse;
import org.springframework.test.context.junit4.SpringRunner;
import org.springframework.test.web.servlet.MockMvc;
import org.springframework.test.web.servlet.MvcResult;
import org.springframework.test.web.servlet.RequestBuilder;
import org.springframework.test.web.servlet.ResultActions;
import org.springframework.test.web.servlet.request.MockMvcRequestBuilders;
import org.springframework.test.web.servlet.setup.MockMvcBuilders;
import org.springframework.web.servlet.view.InternalResourceViewResolver;
@RunWith(SpringRunner.class)
@SpringBootTest(classes = { MvcController.class })
public class MvcControllerTest {
@Autowired
private MvcController mvcController;
private MockMvc mockMvc;
@Before
public void init() {
InternalResourceViewResolver resolver = new InternalResourceViewResolver();
resolver.setPrefix("/WEB-INF/jsp/");
resolver.setSuffix(".jsp");
this.mockMvc = MockMvcBuilders.standaloneSetup(mvcController).setViewResolvers(resolver).build();
}
@Test
public void testHello() throws Exception {
RequestBuilder requestBuilder = MockMvcRequestBuilders.get("/hello/XWQHEDg9e72t");
ResultActions result = mockMvc.perform(requestBuilder);
MvcResult mvcResult = result.andReturn();
MockHttpServletResponse mockHttpServletResponse = mvcResult.getResponse();
String response = mockHttpServletResponse.getContentAsString();
assertThat(response).contains("HELLO WORLD");
}
}
1条答案
按热度按时间gkl3eglg1#
MockMvc中的关键词是 mock。这个框架没有使用JSP引擎设置完整的Servlet容器。因此，它不呈现控制器返回的视图，并且MockHttpServletResponse不包含主体（对于这个用例）。您可以使用
MockHttpServletResponse#getForwardedUrl()来获取Servlet容器将请求转发到的JSP的url，该url是根据视图名称和InternalResourceViewResolver的前缀和后缀构造的。