SpringBoot整合ssm框架使用

SpringBoot环境搭建

见之前博客内容：SpringBoot环境搭建

SpringBoot整合MyBatis

工程结构目录图

pom文件中导入相关依赖

        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>1.3.0</version>
        </dependency>
        <!--lombok插件-->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.16.8</version>
        </dependency>


        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.35</version>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-core</artifactId>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.datatype</groupId>
            <artifactId>jackson-datatype-joda</artifactId>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.module</groupId>
            <artifactId>jackson-module-parameter-names</artifactId>
        </dependency>
        <!-- 分页插件 -->
        <dependency>
            <groupId>com.github.pagehelper</groupId>
            <artifactId>pagehelper-spring-boot-starter</artifactId>
            <version>1.1.2</version>
        </dependency>
        <!-- alibaba的druid数据库连接池 -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid-spring-boot-starter</artifactId>
            <version>1.1.0</version>
        </dependency>
    </dependencies>

配置application.yml

spring:
  datasource:
     url: jdbc:mysql://127.0.0.1:3306/testdemo?useUnicode=true&characterEncoding=utf8
     username: root
     password: root
     driver-class-name: com.mysql.jdbc.Driver

创建相应数据库以及数据库表

创建pojo实体对象，使用lombok插件生成getset方法

package com.ljctest.pojo;

import lombok.Getter;
import lombok.Setter;

@Getter
@Setter
public class User {

    private Integer id;
    private String username;
    private String password;
}

编写dao接口

package com.ljctest.dao;

import com.ljctest.pojo.User;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Select;

import java.util.List;
@Mapper
public interface HelloDao {

    @Select("select * from user")
    List<User>findAll();
}

编写controller、service

package com.ljctest.service;

import com.ljctest.dao.HelloDao;
import com.ljctest.pojo.User;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;

@Service
public class HelloService {

    @Autowired
    HelloDao dao;


    public List<User> findAll(){
        return  dao.findAll();
    }



}

package com.ljctest.controller;

import com.ljctest.pojo.User;
import com.ljctest.service.HelloService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.List;

@RestController
@RequestMapping("hello")
public class HelloController {

    @Autowired
    HelloService service;

    @RequestMapping("testOne")
    public String testOne(){

        return "success";
    }

    @RequestMapping("findAll")
    public List<User>findAll(){
        return service.findAll();
    }


}

使用了阿里的json解析相关依赖。

编写引导类，启动测试。

package com.ljctest;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

/**
 * 引导类
 */
@SpringBootApplication
public class ApplicationTest {

    public static void main(String[] args) {
        
        SpringApplication.run(ApplicationTest.class,args);
    }
}

 

测试成功！

来源：CSDN

作者：纪昌干嘛呢

链接：https://blog.csdn.net/qq_35703608/article/details/81190289