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..."); } }
- 添加测试相关注解 @SpringBootTest
- 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(); } }
- 添加测试相关注解 @SpringBootTest
- 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>
- 配置redis相关属性
spring: redis: host: 127.0.0.1 #redis的主机ip port: 6379
- 注入RedisTemplate模板
- 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>
- 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; }
- 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); } } }
