Spring Security构建Rest服务-0200-搭建项目

一、代码结构：

二、使用Springmvc开发restful API

传统url和rest区别：

三、写代码

1，编写RestfulAPI的测试用例：使用MockMvc伪造mvc

package com.imooc.web.controller;

import java.time.LocalDateTime;
import java.time.ZoneId;
import java.util.Date;

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.request.MockMvcRequestBuilders;
import org.springframework.test.web.servlet.result.MockMvcResultMatchers;
import org.springframework.test.web.servlet.setup.MockMvcBuilders;
import org.springframework.web.context.WebApplicationContext;

@RunWith(SpringRunner.class)
@SpringBootTest
public class UserControllerTest {

    @Autowired
    private WebApplicationContext webCtx;

    //伪造mvc
    private MockMvc mockMvc;

    @Before
    public void setup(){
        mockMvc = MockMvcBuilders.webAppContextSetup(webCtx).build();
    }

    /**
     * 查询
     */
    @Test
    public void whenQuerySuccess() throws Exception{
        String result = mockMvc.perform(MockMvcRequestBuilders.get("/user") //路径
                .param("page", "10")   //参数
                .param("size", "12")
                .param("sort", "age,desc")
                .param("username", "xiaoming")
                .param("age", "18")
                .param("ageTo", "40")
                .param("other", "otherProperty")
                .contentType(MediaType.APPLICATION_JSON_UTF8))
                .andExpect(MockMvcResultMatchers.status().isOk()) //状态码200
                .andExpect(MockMvcResultMatchers.jsonPath("$.length()").value(3))//长度为3，具体查看github的jsonPath项目
                .andReturn().getResponse().getContentAsString();
        System.err.println(result);
    }

    /**
     * 详情
     */
    @Test
    public void whenGetInfoSuccess() throws Exception{
        String result = mockMvc.perform(MockMvcRequestBuilders.get("/user/1")
                .contentType(MediaType.APPLICATION_JSON_UTF8))
                .andExpect(MockMvcResultMatchers.status().isOk())
                .andExpect(MockMvcResultMatchers.jsonPath("$.username").value("tom"))
                .andReturn().getResponse().getContentAsString();
        System.err.println(result);
    }

    /**
     * 详情失败
     */
    @Test
    public void whenGetInfoFail() throws Exception{
        mockMvc.perform(MockMvcRequestBuilders.get("/user/a") //匹配正则
                .contentType(MediaType.APPLICATION_JSON_UTF8))
                .andExpect(MockMvcResultMatchers.status().is4xxClientError());
    }

    @Test
    public void whenCreateSuccess() throws Exception{
        long date = new Date().getTime();
        System.err.println(">>>>>>>>"+date);
        String content = "{\"username\":\"tom\",\"password\":null,\"birthday\":"+date+"}";
         String result = mockMvc.perform(MockMvcRequestBuilders.post("/user")
                 .contentType(MediaType.APPLICATION_JSON_UTF8)
                 .content(content))
                  .andExpect(MockMvcResultMatchers.status().isOk())
                  .andExpect(MockMvcResultMatchers.jsonPath("$.id").value("1"))
                  .andReturn().getResponse().getContentAsString();
         System.err.println(result);
    }

    @Test
    public void whenUpdateSuccess() throws Exception{
        //jdk8新增，当前日期加一年，测试生日@past注解
        Date date = new Date(LocalDateTime.now().plusYears(1).atZone(ZoneId.systemDefault()).toInstant().toEpochMilli());
        System.err.println(">>>>>>>>"+date);
        String content = "{\"id\":\"1\",\"username\":\"tom\",\"password\":null,\"birthday\":"+date.getTime()+"}";
         String result = mockMvc.perform(MockMvcRequestBuilders.put("/user/1") //put
                 .contentType(MediaType.APPLICATION_JSON_UTF8)
                 .content(content))
                  .andExpect(MockMvcResultMatchers.status().isOk())
                  .andExpect(MockMvcResultMatchers.jsonPath("$.id").value("1"))
                  .andReturn().getResponse().getContentAsString();
         System.err.println("update result>>>>> "+result);
    }

    @Test
    public void whenDeleteSuccess() throws Exception {
        mockMvc.perform(MockMvcRequestBuilders.delete("/user/1")
                .contentType(MediaType.APPLICATION_JSON_UTF8))
                .andExpect(MockMvcResultMatchers.status().isOk());
    }

}

Controller：使用注解声明RestfulAPI

package com.imooc.web.controller;

import java.util.ArrayList;
import java.util.List;

import javax.validation.Valid;

import org.springframework.data.domain.Pageable;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.DeleteMapping;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.PutMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import com.fasterxml.jackson.annotation.JsonView;
import com.imooc.dto.User;
import com.imooc.dto.UserQueryCondition;

@RestController
@RequestMapping("/user")
public class UserController {

    /**
     * @Description: 条件查询
     * @param @param condition
     * @param @param pageable
     * @param @return
     * @return List<User>
     * @throws
     * @author lihaoyang
     * @date 2018年2月24日
     */
    @GetMapping()
    @JsonView(User.UserSimpleView.class)
    public List<User> query(
            //@RequestParam(value="username",required=false,defaultValue="lhy") String username
            UserQueryCondition condition , Pageable pageable){
//        System.err.println(username);
        System.err.println(condition.toString());
        System.err.println(pageable.toString());

        List<User> users = new ArrayList<User>();
        users.add(new User());
        users.add(new User());
        users.add(new User());
        return users;
    }

    /**
     * 详情
     * @Description: TODO
     * @param @param id
     * @param @return
     * @return User
     * @throws
     * @author lihaoyang
     * @date 2018年2月24日
     */
    @GetMapping("{id:\\d+}") //{}里可以是正则，匹配数字
//    @GetMapping("detail/{id}")
    @JsonView(User.UserDetailView.class)
    public User getInfo(@PathVariable(value="id",required=true) String id){
        System.err.println(id);
        User user = new User();
        user.setUsername("tom");
        user.setPassword("123456");
        user.setId("1");
        return user;
    }

    /**
     * 创建
     * @Description:
     * //@RequestBody:json映射到java
     *     @Valid 和User类上的@NotBlank注解一起做校验
     *  BindingResult存储的是校验错误信息
     * @param @param user
     * @param @return
     * @return User
     * @throws
     * @author lihaoyang
     * @date 2018年2月24日
     */
    @PostMapping
    public User create(@Valid @RequestBody User user,BindingResult errors){

        if(errors.hasErrors()){
            errors.getAllErrors().stream()
            .forEach(error -> System.err.println(error.getDefaultMessage()));
        }

        user.setId("1");
        System.err.println(user);
        return user;
    }

    @PutMapping("/{id:\\d+}")
    public User update(@Valid @RequestBody User user,BindingResult errors){

        if(errors.hasErrors()){
            errors.getAllErrors().stream()
            .forEach(error -> System.err.println(error.getDefaultMessage()));
        }
        System.err.println(user);
        return user;
    }

    @DeleteMapping("/{id:\\d+}")
    public void delete(@PathVariable String id){
        System.err.println("delete method id is >>>>>>>"+id);
    }

}

到这里只是说了RestfulAPI增删改查的做法，使用查询使用@GetMapping()、新增使用@PostMapping、修改使用@PutMapping、删除使用@DeleteMapping。restful是根据响应的状态码确定接口调用是否成功的。

完整代码放在了github：https://github.com/lhy1234/spring-security