配置文件mybatis-config.xml(sqlMapConfig.xml)
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration
PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
<!--配置别名
typeAliases和environments是平等级别的标签
type是实体类的完整类名
alias是类的别名
-->
<typeAliases>
<typeAlias type="com.soft.domain.User" alias="User"/>
<typeAlias type="com.soft.domain.DeptEntity" alias="DeptEntity"/>
<typeAlias type="com.soft.domain.EmpEntity" alias="EmpEntity"/>
</typeAliases>
<environments default="development">
<environment id="development">
<transactionManager type="JDBC" />
<dataSource type="POOLED">
<property name="driver" value="com.mysql.jdbc.Driver" />
<property name="url" value="jdbc:mysql://localhost/he" />
<property name="username" value="root" />
<property name="password" value="root" />
</dataSource>
</environment>
</environments>
<mappers>
<!-- 映射文件的位置 -->
<mapper resource="com/soft/domain/User.xml" />
</mappers>
</configuration>
mapper.xml
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//ibatis.apache.org//DTD Mapper 3.0//EN"
"http://ibatis.apache.org/dtd/ibatis-3-mapper.dtd">
<mapper namespace="test">
<!-- parameterType:参数类型,填写实体类的完整名字 -->
<insert id="save" parameterType="cn.chentging.mybatis.entity.Employee">
insert into net_t_emp values(net_t_emp_seq.nextval,#{name},#{age})
</insert>
<select id="findAll" resultType="cn.chentging.mybatis.entity.Employee">
select * from net_t_emp
</select>
<select id="findById" parameterType="int" resultType="cn.chentging.mybatis.entity.Employee">
select * from net_t_emp where id=#{id1}
</select>
<update id="modify" parameterType="cn.chentging.mybatis.entity.Employee">
update net_t_emp set name=#{name},age=#{age} where id=#{id}
</update>
<delete id="delete" parameterType="int">
delete from net_t_emp where id=#{id1}
</delete>
<!-- 返回Map类型的结果 map是java.util.Map的简写形式-->
<select id="findById2" parameterType="int" resultType="map">
select * from net_t_emp where id=#{id1}
</select>
<!-- 使用resultMap解决表的字段名与实体类的属性名不一致的情况 -->
<resultMap type="cn.chentging.mybatis.entity.Emp" id="empRestultMap">
<result property="empNo" column="id"/>
<result property="ename" column="name"/>
</resultMap>
<select id="findById3" parameterType="int" resultMap="empRestultMap">
select * from net_t_emp where id=#{id1}
</select>
</mapper>
