【SpringBoot】整合

知识目录

一、整合Junit

使用@SpringBootTest注解可以定义测试类，要保证测试类在启动类在同一个包下，或者在启动类所处的类的子包下；如果不符合，要使用@SpringBootTest(classes = Demo3Application.class)

下面通过service层和实现类模拟测试

public interface UserService {void say();}
 

@Service
 public class UserServiceImpl implements UserService {@Overridepublic void say() {System.out.println("user service --> ");}
 }

@SpringBootTest
 class Demo3ApplicationTests {@Autowiredprivate UserService userService;@Testpublic void testSay() {userService.say();}
 }
 

二、整合mybatis

步骤：

（1）新建SpringBoot项目，勾选Mybatis和Mysql依赖，并导入Druid连接池。

com.alibabadruid1.2.10
 

（2）在application.yml文件配置数据库连接相关信息

（3）根据数据库表编写实体类

 @Data
 @AllArgsConstructor
 @NoArgsConstructor
 public class Book {private Integer id;private String bookType;private String bookName;private String bookDesc;}
 

（4）编写Mapper层接口

@Mapper
 public interface BookMapper {@Select("SELECT * FROM book WHERE id = #{id}")@Results({@Result(column = "book_type",property = "bookType"),@Result(column = "book_name",property = "bookName"),@Result(column = "book_desc",property = "bookDesc")})Book selectById(@Param("id") Integer id);
 }
 

（5）测试并对比结果

@SpringBootTest
 public class BookMapperTest {@Autowiredprivate BookMapper mapper;@Testpublic void testSelectById() {Book book = mapper.selectById(2);System.out.println(book);}
 }
 

三、基于SpringBoot整合SSM

使用index.html设置访问首页跳转：