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>
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