[开发工具]springboot框架整合SSM框架流程(idea)

1.新建maven项目

2.在pom.xml文件中引入依赖

 <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.5.3</version>
    </parent>
    <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>54
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.18.20</version>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.25</version>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid-spring-boot-starter</artifactId>
            <version>1.2.6</version>
        </dependency>
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>2.2.0</version>
        </dependency>
    </dependencies>

3.配置项目配置文件和包如图所示

项目结构如图：

4.配置配置文件

Main:

@SpringBootApplication
public class Main {
    public static void main(String[] args) {
        SpringApplication.run(Main.class);
    }
}

application.yml:

#激活application-dev.yml
spring:
  profiles:
    active: dev

application-dev.yml:

#配置端口号
server:
  port: 8090
#配置项目别名
  servlet:
    context-path: /ssm
#配置druid
spring:
  datasource:
    druid:
      username: root
      password: 123
      url: jdbc:mysql://192.168.0.199:3306/ssm_db?useSSL=false&serverTimezone=Asia/Shanghai&allowPublicKeyRetrieval=true
      driver-class-name: com.mysql.cj.jdbc.Driver
#配置mybatis
mybatis: 
  type-aliases-package: com.dyit.ssm.entity
  mapper-locations: classpath:mapper/*.mapper.xml

5.写数据库表的实体类,mapper,dto

Book:

@Alias("Book")
@Data
@NoArgsConstructor
@AllArgsConstructor
public class Book {
    private Integer id;
    private String title;
    private String author;
    private Double price;
    private String category;
}

HttpResp:

@Data
@NoArgsConstructor
@AllArgsConstructor
public class HttpResp {

    private int code;
    private String msg;
    private Object results;
    private LocalDateTime time;
}

IBookMapper:

@Mapper
public interface IBookMapper {

    List<Book> findAll();
}

6.配置mapper.xml文件

<?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.yang.ssm.mapper.IBookMapper">

	<sql id="findAllBook">
		SELECT * FROM book_tab
	</sql>

	<resultMap type="Book" id="BookMap">
		<id property="id" column="book_id" />
		<result property="title" column="book_title" />
		<result property="price" column="book_price" />
		<result property="category" column="book_category" />
		<result property="author" column="book_author" />
	</resultMap>

	<select id="findAll" resultMap="BookMap">
		<include refid="findAllBook" />
	</select>

</mapper>

7.写service测试

IBookService:

public interface IBookService {

    List<Book> findAll();
}

BookServiceImpl:

@Service
@Transactional
public class BookServiceImpl implements IBookService {
    @Autowired
    private IBookMapper mapper;

    @Override
    public List<Book> findAll() {
        return mapper.findAll();
    }
}

8.写controller进行接口测试

@CrossOrigin
@RestController
@RequestMapping("/api/book")
public class BookController {
    @Autowired
    private IBookService ibs;


    @GetMapping("/findAll")
    public HttpResp findAll(){
        List<Book> list =ibs.findAll();
        return new HttpResp(2001,"查询成功",list,null);
    }
}

9.运行Main，进行接口测试