Ibatis调用存储过程实现增删改以及分页查询

1、Ibatis实现增删改操作很简单了，通常我是将某一模块的增删改功能写在一个存储过程里，通过一个标识符去区分执行增加还是修改抑或删除操作。

statement：

	<!-- 存储过程：实现学生的增删改操作 -->
	<procedure id="crud" parameterClass="xuesheng" >
			{call PRO_STUDENT_SUBMIT(
				#xs_id#,
				#xs_name#,
				#zy_id#,
				#xs_num#,
				#xs_sfz#,
				#xs_tel#,
				#xs_email#,
				#xs_address#,
				#xs_sex#,
				#xs_date#,
				#bq#
                       )}
	</procedure>

procedure：

create or replace procedure PRO_STUDENT_SUBMIT(
        v_xs_id  in  varchar2,
        v_xs_name in varchar2,
        v_zy_id in varchar2,
        v_xs_num in  varchar2,
        v_xs_sfz in varchar2,
        v_xs_tel in varchar2,
        v_xs_email in varchar2,
        v_xs_address in varchar2,
        v_xs_sex in varchar2,
        v_xs_date in varchar2,
        v_bq  in   varchar2
) is
begin
--当bq为1时，执行添加操作；为2时，执行修改操作；为3时执行删除操作
if (v_bq = '1') then
insert into xs
  (xs_id, xs_name, zy_id, xs_num, xs_sfz, xs_tel, xs_email, xs_address, xs_sex,xs_date)
values
  (seq_xs.nextval , v_xs_name, v_zy_id, v_xs_num, v_xs_sfz, v_xs_tel, v_xs_email, v_xs_address, v_xs_sex,v_xs_date);
end if;

if (v_bq = '2') then
update xs
   set xs_id = v_xs_id,
       xs_name = v_xs_name,
       zy_id = v_zy_id,
       xs_num = v_xs_num,
       xs_sfz = v_xs_sfz,
       xs_tel = v_xs_tel,
       xs_email = v_xs_email,
       xs_address = v_xs_address,
       xs_sex = v_xs_sex,
       xs_date=v_xs_date
 where xs_id = v_xs_id;
end if;

if (v_bq = '3') then
  delete xs
   where xs_id = v_xs_id;
end if;
end PRO_STUDENT_SUBMIT;

2、重要要说的是通过ibatis调用存储过程实现分页查询（带模糊查询），我们需要有一个返回参数，该参数是游标类型。

通过调用存储过程实现的分页查询要比上文介绍的ibatis分页查询性能上好很多。

代码实例如下（经测试完全好使，ibatis版本2.3）

	/**
	 * 在存储过程内实现查询的分页 与 模糊查询
	 * 需要传入到存储过程的参数 模糊查询的包括 学生姓名  学号 性别  入学时间的起止两个时间  一共5个
	 * 分页需要的参数  那就是 pageNo   pageSize  一共2个   总共需要7个IN参数   返回的肯定是游标了  所以有一个OUT 类型的 CURSOR;
	 * 这些IN 参数都可以通过page对象传过去
	 */
	public  String queryByPro (){
		((XueShengPage)page).setXs_name(xs.getXs_name());
		((XueShengPage)page).setXs_num(xs.getXs_num());
		((XueShengPage)page).setDateFrom(xs.getPage_dateFrom());
		((XueShengPage)page).setDateTo(xs.getPage_dateTo());
		((XueShengPage)page).setXs_sex(xs.getXs_sex());
		Date nowMilDate = new Date();
		long time1 = nowMilDate.getTime();
		xsList=this.xsService.queryByPro((XueShengPage)page);
		Date time2 = new Date();
		LogUtil.info("存储过程实现分页查询用时："+(time2.getTime()-time1));
		return "query";
	}	

	public List queryByPro(XueShengPage page) {
		int rowCount=this.dao.queryForInt("xuesheng.queryListCount", page);//查询总条数
		page.setRowCount(rowCount);
		page.accountPageCount();//计算总页数
		List xsList=new ArrayList();
		Map map1 = new HashMap();
		map1.put("xs_name",page.getXs_name());
		map1.put("xs_num", page.getXs_num());
		map1.put("xs_sex", page.getXs_sex());
		map1.put("dateFrom", page.getDateFrom());
		map1.put("dateTo", page.getDateTo());
		map1.put("pageNo", page.getPageNo());
		map1.put("pageSize", page.getPageSize());
		this.dao.queryOne("xuesheng.pro_cursor", map1);

		List<Map> list=(List<Map>) map1.get("backcursor");//调用存储过程进行查询
		for(int i=0;i<list.size();i++){
			XueSheng xs=new XueSheng();//需要传递模糊查询 和 分页所需要的参数（页号pageNo和每页显示多少条pageSize）
			xs.setXs_id(list.get(i).get("xs_id").toString());
			xs.setXs_address(list.get(i).get("xs_address").toString());
			xs.setXs_date(list.get(i).get("xs_date").toString());
			xs.setXs_email(list.get(i).get("xs_email").toString());
			xs.setXs_name(list.get(i).get("xs_name").toString());
			xs.setXs_num(list.get(i).get("xs_num").toString());
			xs.setXs_sex(list.get(i).get("xs_sex").toString());
			xs.setXs_sfz(list.get(i).get("xs_sfz").toString());
			xs.setXs_tel(list.get(i).get("xs_tel").toString());
			xs.setXy_name(list.get(i).get("xy_name").toString());
			xs.setZy_id(list.get(i).get("zy_id").toString());
			xs.setZy_name(list.get(i).get("zy_name").toString());
			xsList.add(xs);
		}
		return xsList;
	}

    <resultMap class="hashmap" id="backmap">
	    <result property="xs_id" column="XS_ID"/>
	    <result property="xs_name" column="XS_NAME"/>
	    <result property="zy_id" column="ZY_ID"/>
	    <result property="xs_num" column="XS_NUM"/>
	    <result property="xs_sfz" column="XS_SFZ"/>
	    <result property="xs_tel" column="XS_TEL"/>
	    <result property="xs_email" column="XS_EMAIL"/>
	    <result property="xs_address" column="XS_ADDRESS"/>
	    <result property="xs_date" column="XS_DATE"/>
	    <result property="xs_sex" column="XS_SEX"/>
	    <result property="zy_name" column="ZY_NAME"/>
	    <result property="xy_name" column="XY_NAME"/>
    </resultMap>

    <parameterMap class="hashmap" id="pro_cursor_map">
       <parameter property="backcursor" javaType="java.sql.ResultSet" jdbcType="ORACLECURSOR" mode="OUT" resultMap="backmap"/>
       <parameter property="xs_name" javaType="String" jdbcType="VARCHAR" mode="IN"/>
       <parameter property="xs_num" javaType="String" jdbcType="VARCHAR" mode="IN"/>
       <parameter property="xs_sex" javaType="String" jdbcType="VARCHAR" mode="IN"/>
       <parameter property="dateFrom" javaType="String" jdbcType="VARCHAR" mode="IN"/>
       <parameter property="dateTo" javaType="String" jdbcType="VARCHAR" mode="IN"/>
       <parameter property="pageNo" javaType="int" jdbcType="NUMBER" mode="IN"/>
       <parameter property="pageSize" javaType="int" jdbcType="NUMBER" mode="IN"/>
    </parameterMap>

    <procedure id="pro_cursor" parameterMap="pro_cursor_map">
       {call queryXsByPro(?,?,?,?,?,?,?,?)}
    </procedure>

create or replace procedure queryXsByPro
(
  my_cursor out sys_refcursor,
  v_xs_name  IN VARCHAR2,
  v_xs_num   in  varchar2,
  v_xs_sex   in  varchar2,
  v_dateFrom in  varchar2,
  v_dateTo   in  varchar2,
  v_pageNo   in  number,
  v_pageSize in  number
)
as
xs_begin number(10);--从哪条记录开始查
xs_end   number(10);--查到哪条记录结束
v_sql    varchar2(1000);
begin
  xs_begin:=(v_pageNo-1)*v_pageSize+1;
  xs_end  :=xs_begin+v_pageSize;
  v_sql   :=
          'SELECT
           XS_ID,
		       XS_NAME,
           XS.ZY_ID,
           XS_NUM,
           XS_SFZ,
           XS_TEL,
           XS_EMAIL,
           XS_ADDRESS,
           XS_DATE,
           XS_SEX,
           ZY.ZY_NAME,
           XY.XY_NAME
		  FROM XS XS
		 INNER JOIN ZY ZY
		    ON XS.ZY_ID = ZY.ZY_ID
		 INNER JOIN XY
		    ON XY.XY_ID = ZY.XY_ID
         WHERE 1=1 ';
      if  v_xs_sex   is not null  then
        v_sql :=v_sql||'  and xs_sex=v_xs_sex  ';
      end if;

      if  v_dateFrom  is not null then
        v_sql :=v_sql||'  and to_date(xs_sex,''yyyy-MM-dd'')>=to_date(v_dateFrom,''yyyy-MM-dd'')  ';
      end if;

      if  v_dateTo  is not null then
        v_sql :=v_sql||'  and to_date(xs_sex,''yyyy-MM-dd'')<=to_date(v_dateTo,''yyyy-MM-dd'')  ';
      end if;
      v_sql:='select * from (select row_.*, rownum rownum_ from ('||v_sql;
      v_sql:=v_sql || ')row_ where rownum<=' || xs_end ||  '  ) where rownum_>=' || xs_begin;
  open my_cursor for 		v_sql;
end;