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剛剛接觸了FreeMarker覺得不錯

做了個小例子
剛剛接觸了FreeMarker覺得不錯做了個小例子,沒有用到jsp和jsptag

首先建立個數據表里面有username,password兩個字段自己隨便加幾條數據
建立一個webwork  action    TestAction.java
在xwork.xml里加入如下內容
----------------------------------------
     
      /test.flt
    
----------------------------------------
TestAction.java代碼如下
--------------------------------------------------
package com.action;

import com.opensymphony.xwork.ActionSupport;
import java.util.*;
import com.ResultGather;

public class TestAction extends ActionSupport
{
 private List lis;
 private ResultGather rs;
 public List getLis()
 {
  return this.lis;
 }
 public String execute() throws Exception
 {
  rs = new ResultGather();
  lis = rs.selectRS("select * from userbasedatum");//數據結果我是用List,HashMap封裝的,HashMap存的是單條記錄
  return SUCCESS;
 }
}

-------------------------------------------------------------------------------------------------------------------
ResultGather.java代碼如下
----------------------------------------------------------
package com;

import conn.DBConnManager;//數據庫連接池
import java.sql.*;
import java.util.*;

public class ResultGather
{
 private String sql;
 public ResultGather()
 { 
 }
 public ResultGather(String sqlcom)
 {
  this.sql=sqlcom;
 }
 public List selectRS(String sqlStr)
 {
  this.sql = sqlStr;
  return selectRS();
 }
 public List selectRS() //數據結果在這里裝入List和Map
 {
  List rsall = new ArrayList();
  DBConnManager conn = null;
  Connection  con = null;
  Statement stmt = null;
  ResultSet rs = null;
  Map rsTree;
  try{
   conn = DBConnManager.getInstance();
   con = conn.getConnection("mssql");
   stmt = con.createStatement();
   rs = stmt.executeQuery(sql);
   ResultSetMetaData rsmd = rs.getMetaData();
   int numberOfColumns = rsmd.getColumnCount();
   while(rs.next())
   {
   rsTree = new HashMap(numberOfColumns);
    for(int r=1;r    {
     rsTree.put(rsmd.getColumnName(r),rs.getObject(r)); 
     
    }
    rsall.add(rsTree);
   }
   
  }catch(java.lang.Exception ex){
   ex.printStackTrace();
  }finally{
   try{
    if(rs!=null)
     rs.close();
    if(stmt!=null)
     stmt.close();
    if(conn!=null)
     conn.releaseConnection("mssql",con);
   }catch(Exception e){
    System.out.println(e);
   } 
  }
  return rsall;
 }
 }
-----------------------------------------------------------------------------------------------
test.flt代碼如下
-----------------------------------------------------------------------------------------
<#list lis as x>
${x.username},
${x.password}

</#list>
     //freemarker用法網上有相關介紹
-------------------------------------------------------------------------------------

OK 完成了 沒有用到jsp<%.....%>和jsptag
用這個例子做一點修改就可以具有分頁用能了