【干货】Spring Boot 整合 Mybatis

通过在前面的文章中我们已经了解到如何快速构建一个基于 Spring Boot 架构的 Web 服务以及接口开发:

【干货】如何快速构建SpringBoot Web服务

基于 Spring Boot 的接口开发与管理

今天这篇文章我们将继续 Spring Boot 开发学习——如何整合 Mybatis。

添加依赖:

<!--mybatis起步依赖--> <dependency> <groupId>org.mybatis.spring.boot</groupId> <artifactId>mybatis-spring-boot-starter</artifactId> <version>1.1.1</version> </dependency>
<!-- MySQL连接驱动 --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> </dependency>

数据库配置:

DROP TABLE IF EXISTS `user`; CREATE TABLE `user` ( `id` int(11) NOT NULL AUTO_INCREMENT, `username` varchar(50) DEFAULT NULL, `password` varchar(50) DEFAULT NULL, `name` varchar(50) DEFAULT NULL, PRIMARY KEY (`id`) ) ENGINE=InnoDB AUTO_INCREMENT=10 DEFAULT CHARSET=utf8;
INSERT INTO `user` VALUES ('1', 'zhangsan', '123', '张三'); INSERT INTO `user` VALUES ('2', 'lisi', '123', '李四');

创建实体 Bean:

public class User { private Long id; private String username; private String password; private String name;
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; }
public String getName() { return name; }
public void setName(String name) { this.name = name; }
@Override public String toString() { return "User{" + "id=" + id + ", username='" + username + '\'' + ", password='" + password + '\'' + ", name='" + name + '\'' + '}'; }}

编写 Mapper:

@Mapperpublic interface UserMapper {}

 配置 Mapper 映射文件:

<?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.testops.mapper.UserMapper"></mapper>      

添加mybatis信息:

在application.properties中添加mybatis的信息

spring.datasource.driverClassName=com.mysql.jdbc.Driverspring.datasource.url=jdbc:mysql://127.0.0.1:3306/testops?useUnicode=true&characterEncoding=utf8spring.datasource.username=rootspring.datasource.password=''
mybatis.type-aliases-package=com.testops.domainmybatis.mapper-locations=classpath:mapper/*.xml

编写 Mapper 信息:

<select id="queryUserList" resultType="User"> select * from user;</select>

编写测试Controller:

@Controllerpublic class GetUserListController {
@Autowired private UserMapper userMapper;
@RequestMapping(value = "/query",method = RequestMethod.GET)@ResponseBody public List<User> queryUserList(){ List<User> users = userMapper.queryUserList(); return users; }}

测试:

访问:http://ip:port/query

_

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周一

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腾讯课堂

《敏捷测试从零开始》

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