原文鏈接:https://blog.csdn.net/xiaolyuh123/article/details/73281522

import java.util.List;
 
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.PageRequest;
import org.springframework.data.domain.Sort;
import
 
 org.springframework.data.domain.Sort.Direction;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
 
 
import com.xiaolyuh.entity.Person;
import com.xiaolyuh.repository.PersonRepository;
 
@RestController
public class DataController {
    // 1 Spring Data JPA已自動為你註冊bean，所以可自動註入
    @Autowired
    PersonRepository personRepository;
 
    /**
     * 保存 save支持批量保存：<S extends T> Iterable<S> save(Iterable<S> entities);
     * 
     * 刪除： 支持使用id刪除對象、批量刪除以及刪除全部： void delete(ID id); void delete(T entity);
     * void delete(Iterable<? extends T> entities); void deleteAll();
     * 
     
 
*/
    @RequestMapping("/save")
    public Person save(@RequestBody Person person) {
 
        Person p = personRepository.save(person);
 
        return p;
 
    }
 
    /**
     * 測試findByAddress
     */
    @RequestMapping("/q1")
    public List<Person> q1(String address) {
 
        List<Person> people = personRepository.findByAddress(address);
 
        return people;
 
    }
 
    /**
     * 測試findByNameAndAddress
     */
    @RequestMapping("/q2")
    public Person q2(String name, String address) {
 
        Person people = personRepository.findByNameAndAddress(name, address);
 
        return people;
 
    }
 
    /**
     * 測試withNameAndAddressQuery
     */
    @RequestMapping("/q3")
    public Person q3(String name, String address) {
 
        Person p = personRepository.withNameAndAddressQuery(name, address);
 
        return p;
 
    }
 
    /**
     * 測試withNameAndAddressNamedQuery
     */
    @RequestMapping("/q4")
    public Person q4(String name, String address) {
 
        Person p = personRepository.withNameAndAddressNamedQuery(name, address);
 
        return p;
 
    }
 
    /**
     * 測試排序
     */
    @RequestMapping("/sort")
    public List<Person> sort() {
 
        List<Person> people = personRepository.findAll(new Sort(Direction.ASC, "age"));
 
        return people;
 
    }
 
    /**
     * 測試分頁
     */
    @RequestMapping("/page")
    public Page<Person> page(@RequestParam("pageNo") int pageNo, @RequestParam("pageSize") int pageSize) {
 
        Page<Person> pagePeople = personRepository.findAll(new PageRequest(pageNo, pageSize));
 
        return pagePeople;
 
    }
 
}

import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.post;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.content;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
 
import java.util.HashMap;
import java.util.Map;
 
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.http.MediaType;
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.setup.MockMvcBuilders;
import org.springframework.web.context.WebApplicationContext;
 
import net.minidev.json.JSONObject;
 
@RunWith(SpringRunner.class)
@SpringBootTest
public class SpringBootStudentDataJpaApplicationTests {
 
    @Test
    public void contextLoads() {
    }
 
    private MockMvc mockMvc; // 模擬MVC對象，通過MockMvcBuilders.webAppContextSetup(this.wac).build()初始化。  
      
    @Autowired  
    private WebApplicationContext wac; // 註入WebApplicationContext  
  
//    @Autowired  
//    private MockHttpSession session;// 註入模擬的http session  
//      
//    @Autowired  
//    private MockHttpServletRequest request;// 註入模擬的http request\  
  
    @Before // 在測試開始前初始化工作  
    public void setup() {  
        this.mockMvc = MockMvcBuilders.webAppContextSetup(this.wac).build();  
    }  
  
    @Test  
    public void testQ1() throws Exception {  
        Map<String, Object> map = new HashMap<>();
        map.put("address", "合肥");
        
        MvcResult result = mockMvc.perform(post("/q1?address=合肥").content(JSONObject.toJSONString(map)))
                .andExpect(status().isOk())// 模擬向testRest發送get請求  
                .andExpect(content().contentType(MediaType.APPLICATION_JSON_UTF8))// 預期返回值的媒體類型text/plain;charset=UTF-8  
                .andReturn();// 返回執行請求的結果  
          
        System.out.println(result.getResponse().getContentAsString());  
    }  
 
    @Test  
    public void testSave() throws Exception {  
        Map<String, Object> map = new HashMap<>();
        map.put("address", "合肥");
        map.put("name", "測試");
        map.put("age", 50);
        
        MvcResult result = mockMvc.perform(post("/save").contentType(MediaType.APPLICATION_JSON).content(JSONObject.toJSONString(map)))
                .andExpect(status().isOk())// 模擬向testRest發送get請求  
                .andExpect(content().contentType(MediaType.APPLICATION_JSON_UTF8))// 預期返回值的媒體類型text/plain;charset=UTF-8  
                .andReturn();// 返回執行請求的結果  
        
        System.out.println(result.getResponse().getContentAsString());  
    }  
 
    @Test  
    public void testPage() throws Exception {  
        MvcResult result = mockMvc.perform(post("/page").param("pageNo", "1").param("pageSize", "2"))
                .andExpect(status().isOk())// 模擬向testRest發送get請求  
                .andExpect(content().contentType(MediaType.APPLICATION_JSON_UTF8))// 預期返回值的媒體類型text/plain;charset=UTF-8  
                .andReturn();// 返回執行請求的結果  
        
        System.out.println(result.getResponse().getContentAsString());  
    }  
 
}

SpringBoot Junit測試Controller