Mybatis中的Mapper.xml

<?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">

<!-- namespace:该mapper.xml映射文件的 唯一标识 -->
<mapper namespace="org.student.entity.studentMapper">
	<!--  后续通过  namespace.id-->
	<!--parameterType:输入参数的类型
	resultType：查询返回结果值的类型  ，返回类型  -->
	<select id="queryStudentByNumber" parameterType="int"  resultType="org.student.entity.Student" >
			select * from student where number = #{number}
	</select>
	<insert id="addStudent" parameterType="org.student.entity.Student" >
		insert into student(number,age,name,grade) values(#{number},#{age},#{name},#{grade}  ) 
	</insert>

	<delete id="deleteStudentByNumebr"  parameterType="int">
		delete from student where number = #{number} 
	</delete>
	
	<update id="updateStudentByNumber" parameterType="org.student.entity.Student" >
		update student set name=#{name} ,age=#{age},name=#{name} where stuno=#{name} 
	</update>
	
	<select id="queryAllStudents"  resultType="org.student.entity.Student" >
		select * from student 
	</select>

</mapper>