import java.io.Serializable;

public class Student implements Serializable{
	private Long studentId;
	private String name;
	private String department;
	private String major;
	Student(){}
	public Student(Long studentId, String name, String department, String major) {
		super();
		this.studentId = studentId;
		this.name = name;
		this.department = department;
		this.major = major;
	}
	public Long getStudentId() {
		return studentId;
	}
	public void setStudentId(Long studentId) {
		this.studentId = studentId;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public String getDepartment() {
		return department;
	}
	public void setDepartment(String department) {
		this.department = department;
	}
	public String getMajor() {
		return major;
	}
	public void setMajor(String major) {
		this.major = major;
	}
}

@RestController
@RequestMapping(value="/api/v1/student")
public class StudentController { 

    static Map<Long, Student> students = Collections.synchronizedMap(new HashMap<Long, Student>());

    @RequestMapping("/hello")
    public String hello() {
        Student s1=new Student((long) 1,"liuxiangjun","software","machine learning");
        Student s2=new Student((long) 2,"dingmeifei","software","machine learning");
        Student s3=new Student((long) 3,"zangxuan","software","machine learning");

        students.put((long) 2,s2);
        students.put((long) 3,s3);
        students.put((long) 1,s1);
        return "hello world! Initialization completed";
    }

    @RequestMapping(method=RequestMethod.POST)
    public List<Student> postUser(@ModelAttribute Student s) {
    	students.put(s.getStudentId(), s);
        System.out.println("add success");
        List<Student> slist = new ArrayList<Student>(students.values());
        return slist;
    }

    @RequestMapping(method=RequestMethod.GET)
    public List<Student> getStudentList() {
        List<Student> slist = new ArrayList<Student>(students.values());
        System.out.println("get success");
        return slist;
    }


    @RequestMapping(method=RequestMethod.PUT)
    public List<Student> putUser(@ModelAttribute Student student) {
        Long id=student.getStudentId();
        Student u = students.get(id);
        u.setName(student.getName());
        u.setDepartment(student.getDepartment());
        u.setMajor(student.getMajor());
        students.put(id, u);
        System.out.println("update studentId:"+id+" success");
        List<Student> slist = new ArrayList<Student>(students.values());
        return slist;
    }

    @RequestMapping(method=RequestMethod.DELETE)
    public List<Student> deleteStudent(@ModelAttribute Student student) {
        Long studentId=student.getStudentId();
        students.remove(studentId);
        System.out.println("delete success");
        List<Student> slist = new ArrayList<Student>(students.values());
        return slist;
    }
}

//import部分略去
@RunWith(SpringJUnit4ClassRunner.class)
@SpringBootTest(classes = MockServletContext.class)
@WebAppConfiguration
public class Boot1ApplicationTests {

	private MockMvc mvc;

	@Before
	public void setUp() throws Exception {
		mvc = MockMvcBuilders.standaloneSetup(new StudentController()).build();
	}

	@Test
	public void testUserController() throws Exception {
		RequestBuilder request = null;
		// 1、post提交一个student
		request = post("/api/v1/student")
				.param("studentId", "4")
				.param("name", "xieming")
				.param("department", "computer science")
				.param("major", "data science");
		mvc.perform(request)
				.andExpect(content().string(equalTo("[{\"studentId\":4,"
						+ "\"name\":\"xieming\","
						+ "\"department\":\"computer science\","
						+ "\"major\":\"data science\"}]")));


		// 2、get获取student列表
		request = get("/api/v1/student");
		mvc.perform(request)
				.andExpect(status().isOk())
				.andExpect(content().string(equalTo("[{\"studentId\":4,"
						+ "\"name\":\"xieming\","
						+ "\"department\":\"computer science\","
						+ "\"major\":\"data science\"}]")));


		// 3、put修改id为4的student
		request = put("/api/v1/student")
				.param("name", "zangxuan")
				.param("department", "computer science")
				.param("major", "data science")
				.param("studentId", "4");
		mvc.perform(request)
				.andExpect(content().string(equalTo("[{\"studentId\":4,"
						+ "\"name\":\"zangxuan\","
						+ "\"department\":\"computer science\","
						+ "\"major\":\"data science\"}]")));
		// 4、del删除id为4的student
		request = delete("/api/v1/student")
				.param("studentId", "4");
		mvc.perform(request)
				.andExpect(content().string("[]"));
	}