springboot如何配置web项目请参考前一章，在此基础上集成mybatis。
在pom文件中添加mybatis的依赖：
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<dependency> <groupId>org.mybatis.spring.boot</groupId> <artifactId>mybatis-spring-boot-starter</artifactId> <version>1.2.0</version></dependency> |
添加mysql驱动：
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<dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId></dependency> |
添加druid和fastjson依赖，使用阿里巴巴druid连接池
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<dependency> <groupId>com.alibaba</groupId> <artifactId>druid</artifactId> <version>1.0.28</version></dependency><dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>1.2.30</version></dependency> |
配置数据源，在application.yml中：
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spring: datasource: name: test url: jdbc:mysql://127.0.0.1:3306/test username: root password: 111111 # 使用druid数据源 type: com.alibaba.druid.pool.DruidDataSource driver-class-name: com.mysql.jdbc.Driver filters: stat maxActive: 20 initialSize: 1 maxWait: 60000 minIdle: 1 timeBetweenEvictionRunsMillis: 60000 minEvictableIdleTimeMillis: 300000 validationQuery: select 'x' testWhileIdle: true testOnBorrow: false testOnReturn: false poolPreparedStatements: true maxOpenPreparedStatements: 20 |
设置mybatis的mapper和model扫描路径：
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mybatis: mapperLocations: classpath:mapper/*.xml typeAliasesPackage: com.yingxinhuitong.demo.model#更多配置请参见：http://www.mybatis.org/spring-boot-starter/mybatis-spring-boot-autoconfigure/ |
接下来我们新建userMapper.xml,UserEntity以及UserDao：
UserEntity.class
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package com.yingxinhuitong.demo.model;/** * Created by jack on 2017/4/20. */public class UserEntity { private Long id; private String username; private String password; public Long getId() { return id; } public void setId(Long id) { this.id = id; } public String getUsername() { return username; } public void setUsername(String username) { this.username = username; } public String getPassword() { return password; } public void setPassword(String password) { this.password = password; }} |
UserDao
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package com.yingxinhuitong.demo.dao;import com.yingxinhuitong.demo.model.UserEntity;import org.apache.ibatis.annotations.Mapper;import java.util.List;/** * Created by jack on 2017/4/20. */@Mapperpublic interface UserDao { List<UserEntity> searchAll();} |
UserMapper.xml
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<?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.yingxinhuitong.demo.dao.UserDao" > <!-- 字段与实体的映射 --> <resultMap id="BaseResultMap" type="com.yingxinhuitong.demo.model.UserEntity"> <id column="id" property="id" jdbcType="BIGINT" /> <result column="username" property="username" jdbcType="VARCHAR" /> <result column="password" property="password" jdbcType="VARCHAR" /> </resultMap> <!-- 根据条件查询，全部 --> <select id="searchAll" resultMap="BaseResultMap"> select * from tab_user </select></mapper> |
创建一个控制器，注入UserDao，测试一下可不可以查询数据了：
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@RestControllerpublic class TestController { @Resource UserDao userDao; @RequestMapping("/getusers") public String test() { List<UserEntity> users = userDao.searchAll(); String usersJson = JSON.toJSONString(users); return usersJson; }} |
运行Application.class,启动成功后访问：http://localhost:9000/demo/getusers,输出内容如下：
复制代码 代码如下:
[{"id":1,"password":"000000","username":"test"},{"id":2,"password":"111111","username":"test1"},{"id":3,"password":"222222","username":"test2"}]
至此，springboot已完成对mybatis的集成。
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。
原文链接：http://www.cnblogs.com/jiangkuan/p/6737131.html
