ava Junit 单元测试controller层接口的方法

首先要注入MockMvc(引入的包为：import org.springframework.test.web.servlet.MockMvc;)

@Autowired
    private MockMvc mvc;

1.get方法，参数类型为@RequestParam

@Test
    public void searchFiles() throws Exception {
        //文件搜索
        RequestBuilder request;
        request = get("/api/v1/folders").param("page", "1")
                .param("pageSize", "50")
                .param("parentId", "-1")
                .param("order", "createTime")
                .param("orderType", "desc");
        mvc.perform(request)
                .andExpect(status().isOk())
                .andDo(MockMvcResultHandlers.print());
    }

2.get方法，参数类型为@PathVariable

@Test
    public void getFoldersByParentId() throws Exception {
        //文件夹搜索
        RequestBuilder request;
        request = get("/api/v1/folders/{parentId}/folders", -1);
        mvc.perform(request)
                .andExpect(status().isOk())
                .andDo(MockMvcResultHandlers.print());
    }

3.post方法，参数类型为@RequestBody

@Test
    public void createNewOrEditFile() throws Exception {
        //创建文件夹
        RequestBuilder request;
        request = post("/api/v1/folders")
                .contentType(MediaType.APPLICATION_JSON)
                .accept(MediaType.APPLICATION_JSON)
                .content("{\"name\": \"测试\", \"dir\": 1, \"parentId\": -1}");
        mvc.perform(request)
                .andExpect(status().isOk())
                .andDo(MockMvcResultHandlers.print());
    }

4.需要获得接口得返回值用以进行其他接口得关联：

    @Test
    public void createNewOrEditFile() throws Exception {
        //创建文件夹
        RequestBuilder request;
        request = post("/api/v1/folders")
                .contentType(MediaType.APPLICATION_JSON)
                .accept(MediaType.APPLICATION_JSON)
                .content("{\"name\": \"测试\", \"dir\": 1, \"parentId\": -1}");
        String re = mvc.perform(request)
                .andExpect(status().isOk())
                .andDo(MockMvcResultHandlers.print())
                .andReturn().getResponse().getContentAsString();
    }

5.delete方法

    @Test
    public void deleteFiles() throws Exception {
        RequestBuilder request;
        request = delete("/api/v1/folders")
                .contentType(MediaType.APPLICATION_JSON)
                .accept(MediaType.APPLICATION_JSON)
                .content("{\"ids\":  [430]}");
        mvc.perform(request)
                .andExpect(status().isOk())
                .andDo(MockMvcResultHandlers.print());
    }

ref:SpringBoot基础之MockMvc单元测试 - 云+社区 - 腾讯云 (tencent.com)