Spring框架，如何返回数据给视图(jsp文件)

第一步 准备返回给视图的数据

package com.cwebs.samples;  
  
import java.util.LinkedHashMap;  
import java.util.List;  
import java.util.Map;  
  
import javax.portlet.ActionResponse;  
import javax.portlet.RenderRequest;  
import javax.portlet.RenderResponse;  
  
import org.springframework.stereotype.Controller;  
import org.springframework.web.bind.annotation.RequestMapping;  
import org.springframework.web.bind.annotation.RequestParam;  
import org.springframework.web.portlet.ModelAndView;  
  
import com.cwebs.common.CMySQL;  
import com.cwebs.common.ConnectionInfo;  
  
@Controller  
@RequestMapping("VIEW")  
public class QueryBySQLViewController {  
    public ConnectionInfo ci = new ConnectionInfo(  
            "jdbc:mysql://localhost:3366/test", "root", "root");      
  
    @RequestMapping  
    public ModelAndView renderEditView(RenderRequest request,   
            RenderResponse response) throws Exception {  
        List<Map<String,String>> list=null;  
        try {  
            //step1:test open&close  
            CMySQL db = new CMySQL(ci.connStr, ci.usr, ci.pwd);  
              
            //step2:test query with return  
            list=db.executeQuery("select * from babywatch");              
            db.testResult(list);          
              
        }catch(Exception ex)  
        {  
            ex.printStackTrace();             
        }  
          
        final Map<String, Object> model = new LinkedHashMap<String, Object>();  
        model.put("resultList", list);  
        model.put("title", "测试表格");  
          
        return new ModelAndView("SQLQueryResult", model);  
    }  
}  

　　第二步 在视图中显示

<%@page contentType="text/html;charset=utf-8" pageEncoding="utf-8"%>  
<%@ include file="/WEB-INF/jsp/include.jsp" %>  
  
<!-- View Mode -->  
  
<h2>${title}</h2>  
  
<c:choose>  
    <c:when test="${empty resultList}">  
        <p>没有记录</p>  
    </c:when>  
    <c:otherwise>  
        <table>  
         <tr>  
          <th>ID</th><th>名字</th><th>发布日期</th>  
         </tr>           
        <c:forEach var="result" items="${resultList}">  
         <tr>  
          <td>${result.BABYWATCH_ID}</td>  
          <td>${result.BABYWATCH_NAME}</td>  
          <td>${result.BABYWATCH_PUBLISHDATE}</td>  
         </tr>              
        </c:forEach>  
        </table>  
    </c:otherwise>  
</c:choose>  
  
<h2>Portlet URLs</h2>  
<ul>  
    <li><a href="<portlet:renderURL portletMode="view" />">View Mode</a>  
    <li><a href="<portlet:renderURL portletMode="edit" />">Edit Mode</a>  
    <li><a href="<portlet:renderURL portletMode="help" />">Help Mode</a>  
    <li><a href="<portlet:renderURL windowState="normal" />">Normal State</a>  
    <li><a href="<portlet:renderURL windowState="maximized" />">Maximized State</a>  
    <li><a href="<portlet:renderURL windowState="minimized" />">Minimized State</a>  
</ul>  

　　上例在视图中显示了一个简单的表格。