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# homework

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HELP.md
target/
!.mvn/wrapper/maven-wrapper.jar
!**/src/main/**/target/
!**/src/test/**/target/
### STS ###
.apt_generated
.classpath
.factorypath
.project
.settings
.springBeans
.sts4-cache
### IntelliJ IDEA ###
.idea
*.iws
*.iml
*.ipr
### NetBeans ###
/nbproject/private/
/nbbuild/
/dist/
/nbdist/
/.nb-gradle/
build/
!**/src/main/**/build/
!**/src/test/**/build/
### VS Code ###
.vscode/

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demo2/pom.xml
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<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.3.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.didispace</groupId>
<artifactId>chapter2-2</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>chapter2-2</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>com.spring4all</groupId>
<artifactId>swagger-spring-boot-starter</artifactId>
<version>1.9.0.RELEASE</version>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.30</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>2.2.2</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.5.9</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.49</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
<!--日志依赖-->
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>1.2.11</version>
</dependency>
<!-- Mybatis依赖-->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.5.5</version>
</dependency>
<!-- Mysql连接依赖-->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.21</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>

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demo2/src/main/java/com/didispace/chapter22/Chapter22Application.java
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package com.didispace.chapter22;
import com.spring4all.swagger.EnableSwagger2Doc;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@EnableSwagger2Doc
@SpringBootApplication
public class Chapter22Application {
public static void main(String[] args) {
SpringApplication.run(Chapter22Application.class, args);
}
}

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demo2/src/main/java/com/didispace/chapter22/User.java
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package com.didispace.chapter22;
import io.swagger.annotations.ApiModel;
import io.swagger.annotations.ApiModelProperty;
import lombok.Data;
@Data
@ApiModel(description="用户实体")
public class User {
@ApiModelProperty("用户编号")
private int id;
@ApiModelProperty("用户姓名")
private String name;
@ApiModelProperty("用户年龄")
private Integer age;
}

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demo2/src/main/java/com/didispace/chapter22/UserController.java
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package com.didispace.chapter22;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiImplicitParam;
import io.swagger.annotations.ApiOperation;
import org.springframework.web.bind.annotation.*;
import java.util.*;
@Api(tags = "用户管理")
@RestController
@RequestMapping(value = "/users") // 通过这里配置使下面的映射都在/users下
public class UserController {
// 创建线程安全的Map，模拟users信息的存储
static Map<Integer, User> users = Collections.synchronizedMap(new HashMap<>());
@GetMapping("/")
@ApiOperation(value = "获取用户列表")
public List<User> getUserList() {
List<User> r = new ArrayList<>(users.values());
return r;
}
@PostMapping("/")
@ApiOperation(value = "创建用户", notes = "根据User对象创建用户")
public String postUser(@RequestBody User user) {
users.put(user.getId(), user);
return "success";
}
@GetMapping("/{id}")
@ApiOperation(value = "获取用户详细信息", notes = "根据url的id来获取用户详细信息")
public User getUser(@PathVariable int id) {
return users.get(id);
}
@PutMapping("/{id}")
@ApiImplicitParam(paramType = "path", dataType = "Long", name = "id", value = "用户编号", required = true, example = "1")
@ApiOperation(value = "更新用户详细信息", notes = "根据url的id来指定更新对象，并根据传过来的user信息来更新用户详细信息")
public String putUser(@PathVariable int id, @RequestBody User user) {
User u = users.get(id);
u.setName(user.getName());
u.setAge(user.getAge());
users.put(id, u);
return "success";
}
@DeleteMapping("/{id}")
@ApiOperation(value = "删除用户", notes = "根据url的id来指定删除对象")
public String deleteUser(@PathVariable int id) {
users.remove(id);
return "success";
}
}

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demo2/src/main/java/com/didispace/chapter22/UserMapper.java
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package com.didispace.chapter22;
import java.util.List;
import org.apache.ibatis.annotations.*;
@Mapper//运行时会自动生成该接口的实现类对象，并交给IOC容器管理
public interface UserMapper {
//根据ID删除数据
@Delete("delete from Users01 where id=#{id}")
public void delete(int id);
@Insert("insert into Users01(id, name, age) values(#{id},#{name},#{age})")
public void insert(User user);
@Update("update Users01 set name=#{name},age=#{age} where id=#{id}")
public void update(User user);
@Select("select * from Users01 where id=#{id}")
public User select(int id);
//查询全部用户信息
/*@ Select("select * from Users01")
public List<User> list();*/
}

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demo2/src/main/resources/application.properties
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# 应用服务 WEB 访问端口
server.port=8080
swagger.title=spring-boot-starter-swagger
swagger.description=Starter for swagger 2.x
swagger.version=1.9.0.RELEASE
swagger.license=Apache License, Version 2.0
swagger.licenseUrl=https://www.apache.org/licenses/LICENSE-2.0.html
swagger.termsOfServiceUrl=https://github.com/dyc87112/spring-boot-starter-swagger
swagger.contact.name=didi
swagger.contact.url=http://blog.didispace.com
swagger.contact.email=dyc87112@qq.com
swagger.base-package=com.didispace
swagger.base-path=/**
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.datasource.url=jdbc:mysql://localhost:3306/users?serverTimezone=GMT%2B8
spring.datasource.username=root
spring.datasource.password=today218737202
#??mybatis????????????
mybatis.configuration.log-impl=org.apache.ibatis.logging.stdout.StdOutImpl

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demo2/src/test/java/com/didispace/chapter22/Chapter22ApplicationTests.java
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package com.didispace.chapter22;
import java.util.*;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mybatis.spring.annotation.MapperScan;
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.RequestBuilder;
import org.springframework.test.web.servlet.setup.MockMvcBuilders;
import java.util.List;
import static org.hamcrest.Matchers.equalTo;
import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.*;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.content;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
@RunWith(SpringRunner.class)
@SpringBootTest
public class Chapter22ApplicationTests {
@Autowired
private UserMapper userMapper;
/*@Test
public void testListUser(){
List<User> userList = userMapper.list();
userList.stream().forEach(user->{
System.out.println(user);
});
}*/
@Test
public void testDelete(){
userMapper.delete(1);
}
@Test
public void testInsert(){
User user = new User();
user.setId(7);
user.setAge(18);
user.setName("Jessie");
userMapper.insert(user);
}
@Test
public void testUpdate(){
User user = new User();
user.setId(7);
user.setAge(20);
user.setName("Jessie");
userMapper.update(user);
}
@Test
public void testSelect(){
User user=userMapper.select(3);
System.out.println(user);
}
private MockMvc mvc;
@Before
public void setUp() {
mvc = MockMvcBuilders.standaloneSetup(new UserController()).build();
}
@Test
public void testUserController() throws Exception {
// 测试UserController
RequestBuilder request;
// 1、get查一下user列表，应该为空
request = get("/users/");
mvc.perform(request)
.andExpect(status().isOk())
.andExpect(content().string(equalTo("[]")));
// 2、post提交一个user
request = post("/users/")
.contentType(MediaType.APPLICATION_JSON)
.content("{\"id\":1,\"name\":\"测试大师\",\"age\":20}");
mvc.perform(request)
.andExpect(content().string(equalTo("success")));
// 3、get获取user列表，应该有刚才插入的数据
request = get("/users/");
mvc.perform(request)
.andExpect(status().isOk())
.andExpect(content().string(equalTo("[{\"id\":1,\"name\":\"测试大师\",\"age\":20}]")));
// 4、put修改id为1的user
request = put("/users/1")
.contentType(MediaType.APPLICATION_JSON)
.content("{\"name\":\"测试终极大师\",\"age\":30}");
mvc.perform(request)
.andExpect(content().string(equalTo("success")));
// 5、get一个id为1的user
request = get("/users/1");
mvc.perform(request)
.andExpect(content().string(equalTo("{\"id\":1,\"name\":\"测试终极大师\",\"age\":30}")));
// 6、del删除id为1的user
request = delete("/users/1");
mvc.perform(request)
.andExpect(content().string(equalTo("success")));
// 7、get查一下user列表，应该为空
request = get("/users/");
mvc.perform(request)
.andExpect(status().isOk())
.andExpect(content().string(equalTo("[]")));
}
}

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