第二次作业后端

Assignment1/backend/Assignments/src/main/java/com/cyberlanting/Assignments/config/SwaggerConfig.java

@@ -8,11 +8,11 @@ import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
 @Configuration
 @Slf4j
 public class SwaggerConfig implements WebMvcConfigurer {
-    @Override
+//    @Override
-    public void addResourceHandlers(ResourceHandlerRegistry registry) {
+//    public void addResourceHandlers(ResourceHandlerRegistry registry) {
-        log.info("静态资源映射");
+//        log.info("静态资源映射");
-        registry.addResourceHandler("/swagger-ui/**")
+//        registry.addResourceHandler("/swagger-ui/**")
-                .addResourceLocations("classpath:/META-INF/resources/webjars/springdoc-openapi-ui/")
+//                .addResourceLocations("classpath:/META-INF/resources/webjars/springdoc-openapi-ui/")
-                .resourceChain(false);
+//                .resourceChain(false);
-    }
+//    }
 }

Assignment2/backend/Assignments/pom.xml

@@ -0,0 +1,93 @@
+<?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 https://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>3.4.3</version>
+		<relativePath/> <!-- lookup parent from repository -->
+	</parent>
+	<groupId>com.cyberlanting</groupId>
+	<artifactId>Assignments</artifactId>
+	<version>0.0.1-SNAPSHOT</version>
+	<name>Assignments</name>
+	<description>Assignments</description>
+	<url/>
+	<licenses>
+		<license/>
+	</licenses>
+	<developers>
+		<developer/>
+	</developers>
+	<scm>
+		<connection/>
+		<developerConnection/>
+		<tag/>
+		<url/>
+	</scm>
+	<properties>
+		<java.version>17</java.version>
+	</properties>
+	<dependencies>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-web</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-test</artifactId>
+			<scope>test</scope>
+		</dependency>
+		<dependency>
+			<groupId>org.projectlombok</groupId>
+			<artifactId>lombok</artifactId>
+			<scope>provided</scope>
+		</dependency>
+		<dependency>
+			<groupId>org.springdoc</groupId>
+			<artifactId>springdoc-openapi-starter-webmvc-ui</artifactId>
+			<version>2.8.5</version>
+		</dependency>
+		<dependency>
+			<groupId>org.mybatis.spring.boot</groupId>
+			<artifactId>mybatis-spring-boot-starter</artifactId>
+			<version>3.0.4</version>
+		</dependency>
+		<dependency>
+			<groupId>com.mysql</groupId>
+			<artifactId>mysql-connector-j</artifactId>
+			<version>9.1.0</version>
+		</dependency>
+	</dependencies>
+
+<!--	<build>-->
+<!--		<plugins>-->
+<!--			<plugin>-->
+<!--				<groupId>org.apache.maven.plugins</groupId>-->
+<!--				<artifactId>maven-compiler-plugin</artifactId>-->
+<!--				<configuration>-->
+<!--					<annotationProcessorPaths>-->
+<!--						<path>-->
+<!--							<groupId>org.projectlombok</groupId>-->
+<!--							<artifactId>lombok</artifactId>-->
+<!--						</path>-->
+<!--					</annotationProcessorPaths>-->
+<!--				</configuration>-->
+<!--			</plugin>-->
+<!--			<plugin>-->
+<!--				<groupId>org.springframework.boot</groupId>-->
+<!--				<artifactId>spring-boot-maven-plugin</artifactId>-->
+<!--				<configuration>-->
+<!--					<excludes>-->
+<!--						<exclude>-->
+<!--							<groupId>org.projectlombok</groupId>-->
+<!--							<artifactId>lombok</artifactId>-->
+<!--						</exclude>-->
+<!--					</excludes>-->
+<!--				</configuration>-->
+<!--			</plugin>-->
+<!--		</plugins>-->
+<!--	</build>-->
+
+</project>

Assignment2/backend/Assignments/src/main/java/com/cyberlanting/Assignments/AssignmentsApplication.java

@@ -0,0 +1,13 @@
+package com.cyberlanting.Assignments;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class AssignmentsApplication {
+
+	public static void main(String[] args) {
+		SpringApplication.run(AssignmentsApplication.class, args);
+	}
+
+}

Assignment2/backend/Assignments/src/main/java/com/cyberlanting/Assignments/config/SwaggerConfig.java

@@ -0,0 +1,18 @@
+package com.cyberlanting.Assignments.config;
+
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
+
+@Configuration
+@Slf4j
+public class SwaggerConfig implements WebMvcConfigurer {
+//    @Override
+//    public void addResourceHandlers(ResourceHandlerRegistry registry) {
+//        log.info("静态资源映射");
+//        registry.addResourceHandler("/swagger-ui/**")
+//                .addResourceLocations("classpath:/META-INF/resources/webjars/springdoc-openapi-ui/")
+//                .resourceChain(false);
+//    }
+}

Assignment2/backend/Assignments/src/main/java/com/cyberlanting/Assignments/controller/UserController.java

@@ -0,0 +1,84 @@
+package com.cyberlanting.Assignments.controller;
+
+import com.cyberlanting.Assignments.pojo.User;
+import com.cyberlanting.Assignments.service.UserService;
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.tags.Tag;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.*;
+
+@Tag(name = "用户模块")
+@RestController
+@RequestMapping("/users")
+public class UserController {
+
+    @Autowired
+    private UserService userService;
+
+    /**
+     * 处理"/users/"的GET请求，用来获取用户列表
+     *
+     * @return
+     */
+    @Operation(summary = "获取用户列表")
+    @GetMapping
+    public List<User> getUserList() {
+        List<User> list = userService.getUserList();
+        return list;
+    }
+
+    /**
+     * 处理"/users/"的POST请求，用来创建User
+     *
+     * @param user
+     * @return
+     */
+    @Operation(summary = "新建用户")
+    @PostMapping
+    public String postUser(@RequestBody User user) {
+        userService.save(user);
+        return "success";
+    }
+
+    /**
+     * 处理"/users/{id}"的GET请求，用来获取url中id值的User信息
+     *
+     * @param id
+     * @return
+     */
+    @Operation(summary = "根据id获取用户")
+    @GetMapping("/{id}")
+    public User getUser(@PathVariable Long id) {
+        return userService.getUser(id);
+    }
+
+    /**
+     * 处理"/users/{id}"的PUT请求，用来更新User信息
+     *
+     * @param id
+     * @param user
+     * @return
+     */
+    @Operation(summary = "根据id修改用户")
+    @PutMapping("/{id}")
+    public String putUser(@PathVariable Long id, @RequestBody User user) {
+        userService.update(id, user);
+        return "success";
+    }
+
+    /**
+     * 处理"/users/{id}"的DELETE请求，用来删除User
+     *
+     * @param id
+     * @return
+     */
+    @Operation(summary = "删除用户")
+    @DeleteMapping("/{id}")
+    public String deleteUser(@PathVariable Long id) {
+        userService.remove(id);
+        return "success";
+    }
+
+}

Assignment2/backend/Assignments/src/main/java/com/cyberlanting/Assignments/mapper/UserMapper.java

@@ -0,0 +1,24 @@
+package com.cyberlanting.Assignments.mapper;
+
+import com.cyberlanting.Assignments.pojo.User;
+import org.apache.ibatis.annotations.*;
+
+import java.util.List;
+
+@Mapper
+public interface UserMapper {
+
+    @Select("select * from user")
+    public List<User> getUserList();
+
+    @Insert("insert into user(name, age) values(#{name}, #{age})")
+    public void save(User user);
+
+    @Select("select * from user where id = #{id}")
+    public User getUser(Long id);
+
+    public void update(Long id, User user);
+
+    @Delete("delete from user where id = #{id}")
+    public void remove(Long id);
+}

Assignment2/backend/Assignments/src/main/java/com/cyberlanting/Assignments/pojo/User.java

@@ -0,0 +1,12 @@
+package com.cyberlanting.Assignments.pojo;
+
+import lombok.Data;
+
+@Data
+public class User {
+
+    private Long id;
+    private String name;
+    private Integer age;
+
+}

Assignment2/backend/Assignments/src/main/java/com/cyberlanting/Assignments/service/UserService.java

@@ -0,0 +1,34 @@
+package com.cyberlanting.Assignments.service;
+
+import com.cyberlanting.Assignments.mapper.UserMapper;
+import com.cyberlanting.Assignments.pojo.User;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+
+@Service
+public class UserService {
+
+    @Autowired
+    private UserMapper userMapper;
+    public List<User> getUserList() {
+        return userMapper.getUserList();
+    }
+
+    public void save(User user) {
+        userMapper.save(user);
+    }
+
+    public User getUser(Long id) {
+        return userMapper.getUser(id);
+    }
+
+    public void update(Long id, User user) {
+        userMapper.update(id, user);
+    }
+
+    public void remove(Long id) {
+        userMapper.remove(id);
+    }
+}

Assignment2/backend/Assignments/src/main/resources/application.yaml

@@ -0,0 +1,16 @@
+spring:
+  application:
+   name: Assignments
+  datasource:
+    driver-class-name: com.mysql.cj.jdbc.Driver
+    url: jdbc:mysql://localhost:3306/rjgc?serverTimezone=Asia/Shanghai&useUnicode=true&characterEncoding=utf-8&zeroDateTimeBehavior=convertToNull&useSSL=false&allowPublicKeyRetrieval=true
+    username: root
+    password: 123456
+
+mybatis:
+  #mapper配置文件
+  mapper-locations: mapper/*.xml
+  type-aliases-package: com.cyberlanting.Assignments.pojo
+  configuration:
+    #开启驼峰命名
+    map-underscore-to-camel-case: true

Assignment2/backend/Assignments/src/main/resources/mapper/UserMapper.xml

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
+        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="com.cyberlanting.Assignments.mapper.UserMapper">
+
+    <update id="update">
+        update user
+        <set>
+            <if test="user.name != null">name = #{user.name},</if>
+            <if test="user.age != null">age = #{user.age}</if>
+        </set>
+        where id = #{id}
+    </update>
+</mapper>

Assignment2/backend/Assignments/src/test/java/com/cyberlanting/Assignments/AssignmentsApplicationTests.java

@@ -0,0 +1,88 @@
+package com.cyberlanting.Assignments;
+
+import com.cyberlanting.Assignments.controller.UserController;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.http.MediaType;
+import org.springframework.test.context.junit.jupiter.SpringExtension;
+import org.springframework.test.web.servlet.MockMvc;
+import org.springframework.test.web.servlet.RequestBuilder;
+import org.springframework.test.web.servlet.setup.MockMvcBuilders;
+
+
+import java.nio.charset.StandardCharsets;
+
+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;
+
+@ExtendWith(SpringExtension.class)
+@SpringBootTest
+class AssignmentsApplicationTests {
+
+	private MockMvc mvc;
+
+
+	@BeforeEach
+	public void setUp() {
+		mvc = MockMvcBuilders.standaloneSetup(new  UserController())
+				.defaultResponseCharacterEncoding(StandardCharsets.UTF_8) // 编码格式
+				.addDispatcherServletCustomizer(dispatcher ->
+						dispatcher.setDispatchOptionsRequest(true))
+				.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("[]")));
+
+	}
+
+
+}