myBatis批量添加,修改和删除
2014-11-24 13:38
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1、批量添加元素session.insert(String string,Object o)
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public void batchInsertStudent(){
List<Student> ls = new ArrayList<Student>();
for(int i = 5;i < 8;i++){
Student student = new Student();
student.setId(i);
student.setName("maoyuanjun" + i);
student.setSex("man" + i);
student.setTel("tel" + i);
student.setAddress("浙江省" + i);
ls.add(student);
}
SqlSession session = SessionFactoryUtil.getSqlSessionFactory().openSession();
session.insert("mybatisdemo.domain.Student.batchInsertStudent", ls);
session.commit();
session.close();
}
<insert id="batchInsertStudent" parameterType="java.util.List">
INSERT INTO STUDENT (id,name,sex,tel,address)
VALUES
<foreach collection="list" item="item" index="index" separator="," >
(#{item.id},#{item.name},#{item.sex},#{item.tel},#{item.address})
</foreach>
</insert>
public void batchInsertStudent(){ List<Student> ls = new ArrayList<Student>(); for(int i = 5;i < 8;i++){ Student student = new Student(); student.setId(i); student.setName("maoyuanjun" + i); student.setSex("man" + i); student.setTel("tel" + i); student.setAddress("浙江省" + i); ls.add(student); } SqlSession session = SessionFactoryUtil.getSqlSessionFactory().openSession(); session.insert("mybatisdemo.domain.Student.batchInsertStudent", ls); session.commit(); session.close(); } <insert id="batchInsertStudent" parameterType="java.util.List"> INSERT INTO STUDENT (id,name,sex,tel,address) VALUES <foreach collection="list" item="item" index="index" separator="," > (#{item.id},#{item.name},#{item.sex},#{item.tel},#{item.address}) </foreach> </insert>
2、批量修改session. insert (String string,Object o)
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实例1:
public void batchUpdateStudent(){
List<Integer> ls = new ArrayList<Integer>();
for(int i = 2;i < 8;i++){
ls.add(i);
}
SqlSession session = SessionFactoryUtil.getSqlSessionFactory().openSession();
session.insert("mybatisdemo.domain.Student.batchUpdateStudent",ls);
session.commit();
session.close();
}
<update id="batchUpdateStudent" parameterType="java.util.List">
UPDATE STUDENT SET name = "5566" WHERE id IN
<foreach collection="list" item="item" index="index" open="(" separator="," close=")" >
#{item}
</foreach>
</update>
实例2:
public void batchUpdateStudentWithMap(){
List<Integer> ls = new ArrayList<Integer>();
for(int i = 2;i < 8;i++){
ls.add(i);
}
Map<String,Object> map = new HashMap<String,Object>();
map.put("idList", ls);
map.put("name", "mmao789");
SqlSession session = SessionFactoryUtil.getSqlSessionFactory().openSession();
session.insert("mybatisdemo.domain.Student.batchUpdateStudentWithMap",map);
session.commit();
session.close();
}
<update id="batchUpdateStudentWithMap" parameterType="java.util.Map" >
UPDATE STUDENT SET name = #{name} WHERE id IN
<foreach collection="idList" index="index" item="item" open="(" separator="," close=")">
#{item}
</foreach>
</update>
实例1: public void batchUpdateStudent(){ List<Integer> ls = new ArrayList<Integer>(); for(int i = 2;i < 8;i++){ ls.add(i); } SqlSession session = SessionFactoryUtil.getSqlSessionFactory().openSession(); session.insert("mybatisdemo.domain.Student.batchUpdateStudent",ls); session.commit(); session.close(); } <update id="batchUpdateStudent" parameterType="java.util.List"> UPDATE STUDENT SET name = "5566" WHERE id IN <foreach collection="list" item="item" index="index" open="(" separator="," close=")" > #{item} </foreach> </update> 实例2: public void batchUpdateStudentWithMap(){ List<Integer> ls = new ArrayList<Integer>(); for(int i = 2;i < 8;i++){ ls.add(i); } Map<String,Object> map = new HashMap<String,Object>(); map.put("idList", ls); map.put("name", "mmao789"); SqlSession session = SessionFactoryUtil.getSqlSessionFactory().openSession(); session.insert("mybatisdemo.domain.Student.batchUpdateStudentWithMap",map); session.commit(); session.close(); } <update id="batchUpdateStudentWithMap" parameterType="java.util.Map" > UPDATE STUDENT SET name = #{name} WHERE id IN <foreach collection="idList" index="index" item="item" open="(" separator="," close=")"> #{item} </foreach> </update>
3、批量删除session.delete(String string,Object o)
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public void batchDeleteStudent(){
List<Integer> ls = new ArrayList<Integer>();
for(int i = 4;i < 8;i++){
ls.add(i);
}
SqlSession session = SessionFactoryUtil.getSqlSessionFactory().openSession();
session.delete("mybatisdemo.domain.Student.batchDeleteStudent",ls);
session.commit();
session.close();
}
<delete id="batchDeleteStudent" parameterType="java.util.List">
DELETE FROM STUDENT WHERE id IN
<foreach collection="list" index="index" item="item" open="(" separator="," close=")">
#{item}
</foreach>
</delete>
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