tk.mybatis 的入门分享

我的入门tk.mybatis的项目已放在github上，欢迎下载：链接地址....

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****下面的文章内容是针对，已有的mybatis配置环境进行修改，实现tk.mybatis****

1.添加pom配置：

    <!-- tk.mybatis -->
    <dependency>
      <groupId>tk.mybatis</groupId>
      <artifactId>mapper</artifactId>
      <version>4.0.0</version>
    </dependency>

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

--原配置：

    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.luck.dao"/>
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
    </bean>

--修改为：

   <bean class="tk.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.luck.dao"/>
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
        <property name="markerInterface" value="tk.mybatis.mapper.common.Mapper" />
        <property name="properties">
            <value>
                mappers=tk.mybatis.mapper.common.Mapper
            </value>
        </property>
    </bean>

3.修改实体类：

@Table(name = "record")
public class Record {
    @Id
    @Column(name = "id")
    private Integer id;
    @Column(name = "send_id")
    private Integer sendId;
    @Column(name = "receive_id")
    private Integer receiveId;
    @Column(name = "group_id")
    private String groupId;
    // get/set 方法这里我就不列出来了，自己添加
}

说明:

   @Table  name属性:  数据库中的表名

   @Column name属性:  列名(若列名和实体类中的属性一致，可以省略不写) ...

4.修改mapper：

import tk.mybatis.mapper.common.Mapper;
//只需要继承Mapper<实体类>
public interface RecordMapper extends Mapper<Record> {
}

Mapper中已经包含了常用方法：insert,delete,update..下图列了一些:

5.修改xml

去掉自动生成的代码。

<?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.luck.dao.RecordMapper" >
  <resultMap id="BaseResultMap" type="com.luck.pojo.Record" >
    <id column="id" property="id" jdbcType="INTEGER" />
    <result column="send_id" property="sendId" jdbcType="INTEGER" />
    <result column="receive_id" property="receiveId" jdbcType="INTEGER" />
    <result column="group_id" property="groupId" jdbcType="VARCHAR" />
    <result column="content" property="content" jdbcType="VARCHAR" />
    <result column="status" property="status" jdbcType="INTEGER" />
    <result column="send_time" property="sendTime" jdbcType="TIMESTAMP" />
    <result column="read_time" property="readTime" jdbcType="TIMESTAMP" />
  </resultMap>

</mapper>

end ....................................................

tk.mybatis 的入门分享

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