使用SpringMVC来实现一组对User对象操作的RESTful API，配合注释详细说明在Spring MVC中如何映射HTTP请求、如何传参、如何编写单元测试

定义Model实体类

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.Table;
@Entity
@Table(name="student")
public class StudentModel{
    @Id @GeneratedValue
    private Integer id;
    private String  name;
    private Date    birth;
    //getter、setter
}

Controller层

测试用例

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.SpringApplicationConfiguration;
import org.springframework.http.MediaType;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.test.context.web.WebAppConfiguration;
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.request.MockMvcRequestBuilders;
import org.springframework.test.web.servlet.result.MockMvcResultMatchers;
import org.springframework.test.web.servlet.setup.MockMvcBuilders;
import org.springframework.web.context.WebApplicationContext;

import com.tutorial.springboot.AppStart;

@RunWith(SpringJUnit4ClassRunner.class)
@SpringApplicationConfiguration(classes=AppStart.class)//MockServletContext.class
@WebAppConfiguration
public class SpringMockTest extends MockMvcResultMatchers{
    //模拟mvc对象类.
    private MockMvc mockMvc;
    @Autowired
    protected WebApplicationContext wac;

    @Before()  //这个方法在每个方法执行之前都会执行一遍
    public void setup() {
        mockMvc = MockMvcBuilders.webAppContextSetup(wac).build();  //初始化MockMvc对象
    }
    
    @Test  
    public void queryAllStudents() throws Exception {  
        String url ="/student/queryAll";
        RequestBuilder request = MockMvcRequestBuilders.get(url)
                                .contentType(MediaType.APPLICATION_JSON);
        MvcResult mvcResult = mockMvc.perform(request)
                                     .andExpect(status().isOk())  //返回的状态是200
                                     .andDo(print())              //打印出请求和相应的内容
                                     .andReturn();  
      //int status = mvcResult.getResponse().getStatus();  
        String content = mvcResult.getResponse().getContentAsString();//将相应的数据转换为字符串
        System.out.println(content);
    }
}

注意：在测试类上的注解，常用的注解有三个
@RunWith(SpringJUnit4ClassRunner.class)
@SpringApplicationConfiguration(classes = Application.class)
@WebAppConfiguration
这三个注解，只要注意第二个注解括号内的Application.class就行，把它替换为项目的启动类即可。
http://www.cnblogs.com/0201zcr/p/5756642.html