springboot与mybatis的整合

最新推荐文章于 2025-08-13 11:57:49 发布

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#springboot #mybatis

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本文介绍了一个使用Spring Boot框架结合MyBatis ORM框架的示例项目，演示了如何配置pom.xml依赖文件，创建实体类、DAO接口及控制器等组件，并通过RESTful API接口实现了基本的数据查询功能。

1.pom.xml文件

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>

<groupId>com.yanshu</groupId>
<artifactId>bootMybatis</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>

<name>bootMybatis</name>
<description>Demo project for Spring Boot</description>

<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.7.RELEASE</version>
<relativePath/> 
</parent>

<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
<json-lib.version>2.4</json-lib.version>
</properties>

<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>1.3.1</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>

<dependency>
<groupId>com.microsoft.sqlserver</groupId>
<artifactId>mssql-jdbc</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>

<dependency>
<groupId>net.sf.json-lib</groupId>
<artifactId>json-lib</artifactId>
<version>${json-lib.version}</version>
<classifier>jdk15</classifier>
</dependency>

<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.30</version>
</dependency>
</dependencies>

<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>

</project>

2.实体类省略...

3.接口

@Mapper
public interface EmpDao {
/* @Select("select * from user where name = #{name}")
User findUserByName(@Param("name")String name);*/
@Select("select * from emp")
List<Emp> findEmpByName();
@Select("select COUNT(*) from emp")
int findEmpByNames();

}

4.controller

package com.yanshu.controller;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import com.alibaba.fastjson.JSON;
import com.yanshu.dao.EmpDao;
import com.yanshu.pojo.Emp;

@RestController
public class EmpController {
@Autowired
private EmpDao empdao;
@RequestMapping("/show")
public String getShow()
{
return "项目启动";

}
/**
* mybatis与实现
* @return
*/
@RequestMapping("/aaaa")
public String getShowa()
{
System.out.println("-----aaaaaaaaaa---------");
List<Emp> emp=empdao.findEmpByName();
int e=empdao.findEmpByNames();
System.out.println(e+"----000000");
Map<String,Object> map=new HashMap<>();
map.put("map", emp);
map.put("count", e);
System.out.println(emp.toString()+"--------");
return JSON.toJSONString(map);

}

}