README.md

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-# homework
-

demo2/.gitignore

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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/

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>

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);
+    }
+
+}

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;
+
+}

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";
+    }
+
+}

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();*/
+}

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

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("[]")));
+
+    }
+
+}