通用Mapper使用（Maven+SSM）

<dependency>

<groupId>com.github.abel533</groupId>

<artifactId>mapper</artifactId>

<version>2.3.4</version>

</dependency>

<!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN"

"http://mybatis.org/dtd/mybatis-3-config.dtd">

<configuration>

<plugins>

<!-- 通用mapper -->

<plugin interceptor="com.github.abel533.mapperhelper.MapperInterceptor">

<!--主键自增回写方法,默认值MYSQL,详细说明请看文档 -->

<property name="IDENTITY" value="MYSQL" />

<!--通用Mapper接口，多个通用接口用逗号隔开 -->

<property name="mappers" value="com.github.abel533.mapper.Mapper" />

</plugin>

</plugins>

</configuration>

<beans xmlns="http://www.springframework.org/schema/beans"

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

xmlns:context="http://www.springframework.org/schema/context"

xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd

http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd">

<!-- 配置SqlSessionFactory -->

<bean id="sessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">

<!-- 数据源 -->

<property name="dataSource" ref="dataSource"/>

<!-- mapper映射文件 -->

<property name="mapperLocations" value="classpath:com/zhiyou100/kfs/mapper/*.xml"/>

<!-- 引入mybatis文件 -->

<property name="configLocation" value="classpath:mybatis.xml"/>

<!-- pagehelp拦截器 -->

<property name="plugins">

<array>

<bean class="com.github.pagehelper.PageInterceptor">

<property name="properties">

<!--使用下面的方式配置参数，一行配置一个 -->

<value>

reasonable=true

</value>

</property>

</bean>

</array>

</property>

</bean>

<!-- 接口生成实现类：用MapperScannerConfigurer使dao接口的包和SqlSessionFactory对象中的mapper对应 -->

<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">

<property name="sqlSessionFactoryBeanName" value="sessionFactory"/>

<property name="basePackage" value="com.zhiyou100.kfs.dao"/>

</bean>

</beans>

import javax.persistence.Column;

import javax.persistence.GeneratedValue;

import javax.persistence.GenerationType;

import javax.persistence.Id;

import javax.persistence.Table;

@Table(name="tbl_user")//@Table：设置对应的表格；name：表格名；

public class User {

@Id//@Id：这个属性是主键

@GeneratedValue(strategy=GenerationType.IDENTITY)//设置MYSQL数据库主键递增（其他数据库有相应的字符串表示递增）

private Integer userId;

@Column(name="user_name")//这个属性userName和数据库user_name字段对应（属性名为userName会自动对应数据库中的user_name，驼峰命名大写会在数据库转化为下划线，若属性名转化后和数据字段名对应则@Column可以不写）

private String userName;

private Integer userAge;

public Integer getUserId() {

return userId;

}

public void setUserId(Integer userId) {

this.userId = userId;

}

public String getUserName() {

return userName;

}

public void setUserName(String userName) {

this.userName = userName == null ? null : userName.trim();

}

public Integer getUserAge() {

return userAge;

}

public void setUserAge(Integer userAge) {

this.userAge = userAge;

}

@Override

public String toString() {

return "User [userId=" + userId + ", userName=" + userName + ", userAge=" + userAge + "]";

}

}

import com.github.abel533.mapper.Mapper;

import com.zhiyou100.kfs.bean.User;

public interface UserMapper extends Mapper<User>{

}