标签：bsp geo ssi 测试 replace rom statement 指定 class
输入对象为HashMap:
where stuage=#{stuAge}
用map中的key的值匹配占位符#{stuAge}，如果匹配成功就用map的value替换占位符
Map<String, Object> studentMap=new HashMap<>(); studentMap.put("stuAge", 23); studentMap.put("stuName","lss"); List<Student> students = studentMapper.queryStudentByStuageOrStunameWtihHashMap(studentMap); <select id="queryStudentByStuageOrStunameWtihHashMap" parameterType="HashMap" resultType="student"> select stuno,stuname,stuage from student1 where stuage=#{stuAge} or stuname like ‘%${stuName}%‘ </select>
MyBatis调用存储过程
mapper.xml->mapper接口->测试方法
1.查询某个年级的学生总数
输入:年级
输出:该年级的学生总数
create or replace procedure queryCountByGradeWithProcedure(gName in varchar,scount out number) as begin select count(1) into scount from student1 where graname=gname; end;
/
//创建存储过程
<select id="queryCountByGradeWithProcedure" statementType="CALLABLE" parameterType="HashMap"> { CALL queryCountByGradeWithProcedure( #{gName,jdbcType=VARCHAR,mode=IN}, #{sCount,jdbcType=INTEGER,mode=OUT} ) } </select> //其中通过statementType="CALLABLE"设置Sql的执行方式是存储过程，存储过程的输出参数gName需要通过HashMap Map<String, Object> params=new HashMap<>(); params.put("gName", "g1");//指定存储过程的输入参数的gName的值是g1 studentMapper.queryCountByGradeWithProcedure(params); //获取存储过程的输出参数 int count=(int) params.get("sCount"); //在使用时,通过hashmap的put方法传入输入参数的值，通过hashmap的get方法获取输出参数的值
No enum constant org.apache.ibatis.type.JdbcType.xxx，则说明mybatis不支持xx类型,需要查表
2.根据学号删除学生
create or replace procedure deleteBysnoWithProcedure(sno in number) as begin delete from student1 where stuno=sno; end; /
存储过程无论输入参数是什么值,语法上都需要map来传递该值
只要是<transactionManager type="JDBC"/>，则增删改都需要手工commit
<!--通过存储过程删除 --> <delete id="deleteBysnoWithProcedure" statementType="CALLABLE" parameterType="HashMap"> { CALL deleteBysnoWithProcedure( #{sno,jdbcType=INTEGER,mode=IN} ) } </delete> Map<String, Object> map=new HashMap<>(); map.put("sno", "3"); studentMapper.deleteBysnoWithProcedure(map); session.commit();
标签：bsp geo ssi 测试 replace rom statement 指定 class
原文地址：https://www.cnblogs.com/mayouyou/p/13218882.html
