我在 Spring Boot 休息控制器中有 POST 方法,如下所示
@RequestMapping(value="/post/action/bookmark", method=RequestMethod.POST)
public @ResponseBody Map<String, String> bookmarkPost(
@RequestParam(value="actionType",required=true) String actionType,
@RequestParam(value="postId",required=true) String postId,
@CurrentUser User user) throws Exception{
return service.bookmarkPost(postId, actionType, user);
}
现在,如果我在Postman中使用缺少的参数进行测试,我会得到一个 400 http 响应和一个 JSON 正文:
{
"timestamp": "2015-07-20",
"status": 400,
"error": "Bad Request",
"exception": "org.springframework.web.bind.MissingServletRequestParameterException",
"message": "Required String parameter 'actionType' is not present",
"path": "/post/action/bookmark"
}
直到现在还可以,但是当我尝试进行单元测试时,我没有得到 JSON 响应
@Test
public void bookmarkMissingActionTypeParam() throws Exception{
// @formatter:off
mockMvc.perform(
post("/post/action/bookmark")
.accept(MediaType.APPLICATION_JSON)
.param("postId", "55ab8831036437e96e8250b6")
)
.andExpect(status().isBadRequest())
.andExpect(jsonPath("$.exception", containsString("MissingServletRequestParameterException")));
// @formatter:on
}
测试失败并产生
java.lang.IllegalArgumentException: json can not be null or empty
我做了一个.andDo(print())并发现响应中没有正文
MockHttpServletResponse:
Status = 400
Error message = Required String parameter 'actionType' is not present
Headers = {X-Content-Type-Options=[nosniff], X-XSS-Protection=[1; mode=block], Cache-Control=[no-cache, no-store], Pragma=[no-cache], Expires=[1], X-Frame-Options=[DENY]}
Content type = null
Body =
Forwarded URL = null
Redirected URL = null
Cookies = []
为什么我在对控制器进行单元测试时没有收到 JSON 响应,但在使用 Postman 或 cUrl 进行手动测试时却收到了它?
编辑:我添加了@WebIntegrationTest但得到了同样的错误:
import static org.hamcrest.Matchers.containsString;
import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.post;
import static org.springframework.test.web.servlet.result.MockMvcResultHandlers.print;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.jsonPath;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.SpringApplicationConfiguration;
import org.springframework.boot.test.WebIntegrationTest;
import org.springframework.http.MediaType;
import org.springframework.security.web.FilterChainProxy;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.test.web.servlet.MockMvc;
import org.springframework.test.web.servlet.setup.MockMvcBuilders;
import org.springframework.web.context.WebApplicationContext;
@RunWith(SpringJUnit4ClassRunner.class)
@SpringApplicationConfiguration(classes = RestApplication.class)
@WebIntegrationTest
public class PostControllerTest {
private MockMvc mockMvc;
@Autowired
private WebApplicationContext webApplicationContext;
@Autowired
private FilterChainProxy springSecurityFilterChain;
@Before
public void setUp() {
mockMvc = MockMvcBuilders.webAppContextSetup(webApplicationContext)
.addFilter(springSecurityFilterChain)
.build();
}
@Test
public void bookmarkMissingActionTypeParam() throws Exception{
// @formatter:off
mockMvc.perform(
post("/post/action/bookmark")
.accept(MediaType.APPLICATION_JSON)
.param("postId", "55ab8831036437e96e8250b6")
)
.andDo(print())
.andExpect(status().isBadRequest())
.andExpect(jsonPath("$.exception", containsString("MissingServletRequestParameterException")));
// @formatter:on
}
}