mybatis获取list结果集的操作

<mapper namespace="com.wztx.java">
	<resultMap id="resultMap" type="java.util.HashMap">
		<result property="customer_id" column="customer_id"/>
		<result property="customer_name" column="customer_name"/>
		<result property="address" column="address"/>
		<result property="cs_tele" column="cs_tele"/>
		<result property="username" column="username"/>
		<result property="codeitem_name" column="codeitem_name"/>
		<result property="createTime" column="createTime"/>
	</resultMap>
<select id="selectlimit" resultMap="resultMap">
		select 
			a.customer_id,
			a.customer_name,
			a.address,
			a.cs_tele,
			b.username,
			c.codeitem_name,
			a.createTime
		from 
			tbl_crm_customer a
		LEFT JOIN 
			tbl_comp_user b on a.forUser=b.user_id
		LEFT JOIN 
		 	tbl_crm_codeItem c on a.customer_status=c.code_item_id
		order by 
		 	a.createTime DESC
		limit
			#{begin},#{sum};

	</select>
</mapper>

config:

<?xml version="1.0" encoding="gbk"?>
<!DOCTYPE configuration 
PUBLIC "-//mybatis.org//DTD Config 3.0//EN" 
"http://mybatis.org/dtd/mybatis-3-config.dtd"> 
<configuration> 
	 <environments default="development"> 
	 	<environment id="development"> 
		 <transactionManager type="JDBC"/> 
		 <dataSource type="POOLED"> 
			  <property name="driver" value="com.mysql.jdbc.Driver"/> 
			  <property name="url" value="jdbc:mysql://139.210.36.220:3306/crm"/>
			  <property name="username" value="root"/> 
			  <property name="password" value="smartlbs2012DB"/> 
		  </dataSource> 
	  </environment> 
	</environments>
<mappers> 
<mapper resource="com/wztx/java/customer.xml"/>
</mappers>
</configuration>

java dao

/**
     * 查询所有的信息
     * @param nowpage
     * @param sum
     * @param c_name
     * @return
     */
    public List selectAllCustomer(int nowpage,int sum){
        SqlSession session = null;
        List list=null;
        try {
        session = DbSessionFactory.getSqlSessionFactory().openSession();
         Map<String,Object> map=new HashMap<String,Object>();   
         map.put("begin",nowpage);
         map.put("sum", sum);
       
        list = (List)session.selectList("com.wztx.java.selectlimit",map);
            session.commit();
        } catch (Exception e) {
            e.printStackTrace();
        }finally {
            session.close();
        }
        return list;
    }

servlet :

response.setContentType("text/html;charset=GBK");
		response.setContentType("text/json;charset=GBK");
		request.setCharacterEncoding("GBK");
		PrintWriter out = response.getWriter();
		
		String page =request.getParameter("nowPage");
		String sum = request.getParameter("rows");
		int nowPage = Integer.parseInt(page);
		int rows = Integer.parseInt(sum);
		QueryDao querydao = new QueryDao();
		ArrayList<Map> al =(ArrayList<Map>) querydao.QueryAllCustomer(nowPage,rows);
		

                   for(int i =0;i<al .size();i++){
				Map m = (Map)al.get(i);
				System.out.println(m.get("customer_name"));
				}

取出所有的结果集。可以继续扩展分页功能。