pom.xml增加如下依赖：
<!--MyBatis的整合-->
<!-- https://mvnrepository.com/artifact/org.mybatis.spring.boot/mybatis-spring-boot-starter -->
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>2.2.2</version>
</dependency>
<!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.33</version>
</dependency>
<!-- https://mvnrepository.com/artifact/junit/junit -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.13</version>
<scope>test</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/com.alibaba/druid-spring-boot-starter -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid-spring-boot-starter</artifactId>
<version>1.2.17</version>
</dependency>
application.properties文件增加如下配置：
spring.datasource.url=jdbc:mysql://localhost:3306/sway-doctor-service-user spring.datasource.username=root spring.datasource.password= spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver # 添加并配置第三方数据源Druid # 数据源类型 spring.datasource.type=com.alibaba.druid.pool.DruidDataSource # 初始化连接数 spring.datasource.initialSize=20 # 最小空闲数 spring.datasource.minIdle=10 # 最大连接数 spring.datasource.maxActive=100 # 配置MyBatis的XML配置文件位置 mybatis.mapper-locations = classpath:mapper/*.xml # 配置XML映射文件中指定的实体类别名路径 #mybatis.type-aliases-package = cn.com.sway.doctor.service.common # 开启驼峰命名匹配映射 mybatis.configuration.map-underscore-to-camel-case=true #mybatis.configuration.log-impl = org.apache.ibatis.logging.stdout.StdOutImpl
编写DataSourceConfig.java数据源配置文件，代码如下：
package cn.com.sway.doctor.service.user.config;
import com.alibaba.druid.pool.DruidDataSource;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import javax.sql.DataSource;
@Configuration
public class DataSourceConfig {
@Bean
@ConfigurationProperties(prefix = "spring.datasource")
public DataSource getDruid() {
return new DruidDataSource();
}
}
编写实体Account.java文件，代码如下：
package cn.com.sway.doctor.service.common.model;
import lombok.Data;
@Data
public class Account {
private String id;
private String mobile;
private String password;
private String name;
}
编写查询用额AccountQuery.java文件，代码如下：
package cn.com.sway.doctor.service.common.query;
import lombok.Data;
import javax.validation.constraints.Min;
import javax.validation.constraints.Pattern;
@Data
public class AccountQuery {
private String id;
@Pattern(regexp = "1\\d{10}", message = "请输入正确的手机号啊")
private String mobile;
private String password;
@Min(value = 0, message = "offset不能为负数")
private Integer offset;
@Min(value = 0, message = "limit不能为负数")
private Integer limit;
}
编写AccountDao.java文件，代码如下：
package cn.com.sway.doctor.service.user.dao;
import cn.com.sway.doctor.service.common.model.Account;
import cn.com.sway.doctor.service.common.query.AccountQuery;
import org.apache.ibatis.annotations.Mapper;
import org.springframework.validation.annotation.Validated;
import java.util.List;
@Mapper
public interface AccountDao {
List<Account> query(@Validated AccountQuery accountQuery);
}
编写AccountMapper.xml，代码如下：
<?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="cn.com.sway.doctor.service.user.dao.AccountDao">
<resultMap id="account" type="cn.com.sway.doctor.service.common.model.Account">
<id property="id" column="id"/>
<result property="mobile" column="mobile"/>
<result property="name" column="name"/>
</resultMap>
<!-- 查询账号列表 -->
<select id="query" resultMap="account">
SELECT * FROM account
<where>
<if test="mobile!=null and mobile!=''">
and mobile = #{mobile}
</if>
</where>
</select>
</mapper>
编写单元测，代码如下：
package cn.com.sway.doctor.service.user;
import cn.com.sway.doctor.service.common.query.AccountQuery;
import cn.com.sway.doctor.service.user.dao.AccountDao;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
@SpringBootTest
class ServiceUserApplicationTests {
@Autowired
private AccountDao accountDao;
@Test
public void testAccountMapper(){
AccountQuery accountQuery = new AccountQuery();
accountQuery.setMobile("18688814832");
System.out.println(accountDao.query(accountQuery).size());
}
}