（超详解）SpringBoot初级部分-整合其他框架-04

Posted 2021-10-12 LL.LEBRON

文章目录

• SpringBoot-整合其他框架-04
• • 1.SpringBoot整合Junit
  • 2.SpringBoot整合Redis
  • 3.SpringBoot整洁MyBatis

SpringBoot-整合其他框架-04

该文章参考：黑马SpringBoot

1.SpringBoot整合Junit

1. 搭建SpringBoot工程

2. 引入starter-test起步依赖

   <dependency>
       <groupId>org.springframework.boot</groupId>
       <artifactId>spring-boot-starter-test</artifactId>
       <scope>test</scope>
   </dependency>
   

3. 编写测试类

   @Service
   public class UserService {
       public void add(){
           System.out.println("add...");
       }
   }
   

4. 添加测试相关注解 @SpringBootTest

5. 编写测试方法

   @SpringBootTest(classes = SpringbootTestApplication.class)
   //这里加不加classes取决于当前测试类包所在的位置
   //在引导类所在包的子包或同级则不需要加(会自动找引导类)，否则要加
   class SpringbootRedisApplicationTests {
   
       @Autowired
       UserService userService;
       @Test
       void contextLoads() {
           userService.add();
       }
   }
   

2.SpringBoot整合Redis

1. 搭建SpringBoot工程

2. 引入redis起步依赖

   <dependency>
       <groupId>org.springframework.boot</groupId>
       <artifactId>spring-boot-starter-data-redis</artifactId>
   </dependency>
   

3. 配置redis相关属性

   spring:
     redis:
       host: 127.0.0.1 #redis的主机ip
       port: 6379
   

4. 注入RedisTemplate模板

5. 编写测试方法，测试（记得打开本机的redis）

   @SpringBootTest
   class SpringbootRedisApplicationTests {
   
       @Autowired
       private RedisTemplate redisTemplate;
   
       @Test
       public void testSet(){
           //存数剧
           redisTemplate.boundValueOps("name").set("zhangsan");
       }
       @Test void testGet(){
           //获取数据
           Object name = redisTemplate.boundValueOps("name").get();
           System.out.println(name);
       }
   }
   

3.SpringBoot整洁MyBatis

1. 搭建SpringBoot工程

2. 引入mybatis起步依赖，添加mysql驱动

   <dependency>
       <groupId>org.mybatis.spring.boot</groupId>
       <artifactId>mybatis-spring-boot-starter</artifactId>
       <version>2.2.0</version>
   </dependency>
   
   <dependency>
       <groupId>mysql</groupId>
       <artifactId>mysql-connector-java</artifactId>
       <scope>runtime</scope>
   </dependency>
   

3. 编写DataSource和MyBatis相关配置

   DataSource配置信息：

   spring:
     datasource:
       url: jdbc:mysql:///mzz
       username: root
       password: root
       driver-class-name: com.mysql.jdbc.Driver
   

   用注解开发可以不用写MyBatis的配置

   xml开发MyBatis相关配置：

   mybatis:
     mapper-locations: classpath:mapper/*Mapper.xml #mapper映射文件路径
     type-aliases-package: com.itheima.springbootmybatis.domain #配置别名
   #config-location: 指定mybatis的核心配置文件
   

4. 定义表和实体类

   USE `mzz`;
   
   DROP TABLE IF EXISTS `t_user`;
   
   CREATE TABLE `t_user` (
     `id` int(11) NOT NULL AUTO_INCREMENT,
     `username` varchar(32) COLLATE utf8mb4_unicode_ci DEFAULT NULL,
     `password` varchar(32) COLLATE utf8mb4_unicode_ci DEFAULT NULL,
     PRIMARY KEY (`id`)
   ) ENGINE=InnoDB AUTO_INCREMENT=3 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
   
   insert  into `t_user`(`id`,`username`,`password`) values (1,'zhangsan','123'),(2,'lisi','234');
   

   

   @Data
   @ToString
   @AllArgsConstructor
   @NoArgsConstructor
   public class User {
       private Integer id;
       private String username;
       private String password;
   }
   

5. 编写dao和mapper文件/纯注解开发 、

   xml开发：

   @Mapper
   @Repository
   public interface UserXmlMapper {
   
       public List<User> findAll();
   }
   

   <?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.itheima.springbootmybatis.mapper.UserXmlMapper">
       <select id="findAll" resultType="user">
           select * from t_user
       </select>
   </mapper>
   

   纯注解开发：

   @Mapper
   @Repository//这里可加可不加，mybatis提供@Mapper可以代替
   public interface UserMapper {
       @Select("select * from t_user")
       public List<User> findAll();
   }
   

6. 测试

   @SpringBootTest
   class SpringbootMybatisApplicationTests {
   
       @Autowired
       private UserMapper userMapper;
   
       @Autowired
       private UserXmlMapper userXmlMapper;
   
       @Test
       void testFindAll() {
           List<User> res = userMapper.findAll();
           for (User user : res) {
               System.out.println(user);
           }
       }
   
       @Test
       void testFindAll1() {
           List<User> res = userXmlMapper.findAll();
           for (User user : res) {
               System.out.println(user);
           }
       }
   }
   

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