加入 @AutoConfigureMockMvc @SpringBootTest @ExtendWith(SpringExtension.class) 注解后会启动spring，也就是他使用了serverlet容器 ~~~ package com.kimgao.bootlauch; import com.kimgao.bootlauch.controller.ArticleController; import lombok.extern.slf4j.Slf4j; import org.junit.jupiter.api.Test; import org.junit.jupiter.api.BeforeAll; import org.junit.jupiter.api.extension.ExtendWith; import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc; import org.springframework.boot.test.context.SpringBootTest; import org.springframework.http.HttpMethod; import org.springframework.http.MediaType; import org.springframework.test.context.junit.jupiter.SpringExtension; import org.springframework.test.web.servlet.MockMvc; import org.springframework.test.web.servlet.MvcResult; import org.springframework.test.web.servlet.request.MockMvcRequestBuilders; import org.springframework.test.web.servlet.setup.MockMvcBuilders; import javax.annotation.Resource; import static org.springframework.test.web.servlet.result.MockMvcResultHandlers.print; @Slf4j @AutoConfigureMockMvc @SpringBootTest @ExtendWith(SpringExtension.class) class ArticleRestControllerTest1 { //mock对象 @Resource private MockMvc mockMvc; //在所有测试方法执行之前进行mock对象初始化 /*@BeforeAll static void setUp() { mockMvc = MockMvcBuilders.standaloneSetup(new ArticleController()).build(); } */ //测试方法 @Test public void saveArticle() throws Exception { String article = "{\n" + " \"id\": 1,\n" + " \"author\": \"zimug\",\n" + " \"title\": \"手摸手教你开发spring boot\",\n" + " \"content\": \"c\",\n" + " \"createTime\": \"2017/07/16 05:23:34\",\n" + " \"reader\":[{\"name\":\"zimug\",\"age\":18},{\"name\":\"kobe\",\"age\":37}]\n" + "}"; MvcResult result = mockMvc.perform( MockMvcRequestBuilders .request(HttpMethod.POST, "/rest/articles") .contentType("application/json") .accept(MediaType.APPLICATION_JSON_UTF8) .content(article) ) .andDo(print()) .andReturn(); //result.getResponse().setCharacterEncoding("UTF-8"); log.info(result.getResponse().getContentAsString()); } } ~~~