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Struts+Ajax

StrutsAjaxApacheJavaXML 
阅读更多
首先看下页面strutsAjax.jsp 
<%@ page language="java" import="java.util.*" pageEncoding="GBK"%>
<%@ taglib uri="http://jakarta.apache.org/struts/tags-bean" prefix="bean"%> 
<%@ taglib uri="http://jakarta.apache.org/struts/tags-html" prefix="html"%>
 
<html> 
<head>
<title>JSP for strutsAjaxForm form</title>
      <SCRIPT language="javascript">
	var xml_httprequest = false;
	var url;
	function CreateXMLHttpRequest(){
	  if(window.XMLHttpRequest){
	         xml_httprequest = new XMLHttpRequest();
	  }else{
	         if(window.ActiveXObject){
	              try{
                             xml_httprequest = new ActiveXObject("Msxml2.XMLHTTP");
	              }catch(e){
                             xml_httprequest = new ActiveXObject("Microsoft.XMLHTTP");
		     }
		}
	  }if(!xml_httprequest){
		alert("创建XMLHttpRequest对象失败!");
	  }
		return xml_httprequest;
	}
	
	function send_xml(url){
		CreateXMLHttpRequest();
		xml_httprequest.onreadystatechange = process;
		xml_httprequest.open("GET",url,true);
		xml_httprequest.send(null);
	}
	
	function process(){
		document.getElementById("td").innerHTML="正在查询数据中...";
		if(xml_httprequest.readyState == 4){
			if(xml_httprequest.status == 200){
				var str = xml_httprequest.responseText;
				document.getElementById("td").innerHTML=str;
			}else{
				alert("页面异常!");
			}
		}
	}
	
</SCRIPT>
	</head>
	<body>
			<a href="#" onclick="send_xml([color=red]'/StrutsAjaxTest/strutsAjax.do?name=caojianwei');">[/color]sd</a>
			<TABLE><TR>
			<TD id="td"></TD>
			</TR>
			</TABLE>
	</body>
</html>


再看下Myjsp.jsp 
<%@ page language="java"%>
<%@ taglib uri="http://jakarta.apache.org/struts/tags-bean" prefix="bean"%> 
<%@ taglib uri="http://jakarta.apache.org/struts/tags-html" prefix="html"%>
<%@ taglib uri="http://jakarta.apache.org/struts/tags-logic" prefix="logic"%>
 

		<logic:iterate id="v" name="v">
			<bean:write name="v" property="name"/>
			<bean:write name="v" property="password"/>
		</logic:iterate>


下面是Action 
//Created by MyEclipse Struts
// XSL source (default): platform:/plugin/com.genuitec.eclipse.cross.easystruts.eclipse_4.1.1/xslt/JavaClass.xsl

package com.StrutsAjaxTest.struts.action;

import java.util.Vector;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;

import com.StrutsAjaxTest.DBConnect.Query.DBConnectQuery;
import com.StrutsAjaxTest.struts.form.StrutsAjaxForm;

/** 
 * MyEclipse Struts
 * Creation date: 07-17-2006
 * 
 * XDoclet definition:
 * @struts.action path="/strutsAjax" name="strutsAjaxForm" input="/form/strutsAjax.jsp" scope="request" validate="true"
 */
public class StrutsAjaxAction extends Action {

	// --------------------------------------------------------- Instance Variables

	// --------------------------------------------------------- Methods

	/** 
	 * Method execute
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return ActionForward
	 */
	public ActionForward execute(
		ActionMapping mapping,
		ActionForm form,
		HttpServletRequest request,
		HttpServletResponse response) {
		DBConnectQuery dbquery = new DBConnectQuery();
		//StrutsAjaxForm strutsAjaxForm = (StrutsAjaxForm) form;
		//String name = strutsAjaxForm.getName();
		//String password = strutsAjaxForm.getPassword();
		String name = request.getParameter("name");
		Vector v = dbquery.Query(name);
		//System.out.println("1"+v);
		//System.out.println(name);
		request.setAttribute("v",v);
		// TODO Auto-generated method stub
		return mapping.findForward("success");
	}

}


连接数据库的类 
package com.StrutsAjaxTest.DBConnect;

import java.sql.Connection;
import java.sql.DriverManager;

public class DBConnect {
	private static Connection con = null;
	
	private DBConnect(){}
	
	public static DBConnect getDBConnect(){
		return new DBConnect();
	}
	
	public Connection getConnection(){
		try{
			Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
			con = DriverManager.getConnection("jdbc:odbc:MQIS","sa","sa");
		}catch(Exception e){
			e.printStackTrace();
			System.out.println("创建数据库连接出错!");
		}
		return con;
	}
	
	/*public static void main(String args[]){
		System.out.println(DBConnect.getConnection());
	}*/
}


操作数据库的类 
 
package com.StrutsAjaxTest.DBConnect.Query;

import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.Statement;
import java.util.Vector;

import com.StrutsAjaxTest.DBConnect.DBConnect;
import com.StrutsAjaxTest.struts.form.StrutsAjaxForm;

public class DBConnectQuery {
	Connection con = null;
	Statement stmt = null;
	ResultSet rs = null;
	
	public Vector Query(String name){
		con = DBConnect.getDBConnect().getConnection();
		System.out.println("0");
		StrutsAjaxForm saform=null;
		int i=1;
		try{
			Vector v = new Vector();
			stmt = con.createStatement();
			//System.out.println("1");
			rs = stmt.executeQuery("select name,password from admin");
			//System.out.println("2");
			while(rs.next()){
				saform = new StrutsAjaxForm();
				String name1 = rs.getString("name");
				String password = rs.getString("password");
				saform.setName(name1);
				saform.setPassword(password);
				//System.out.println(name1+"\n"+password);
				//System.out.println(i);
				i++;
				v.add(saform);
			}
			return v;
		}catch(Exception e){
			e.printStackTrace();
			return null;
		}
		
	}
}


最后是StrutsConfig 
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts-config PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 1.1//EN" "http://jakarta.apache.org/struts/dtds/struts-config_1_1.dtd">

<struts-config>
  <data-sources />
  <form-beans >
    <form-bean name="strutsAjaxForm" type="com.StrutsAjaxTest.struts.form.StrutsAjaxForm" />

  </form-beans>

  <global-exceptions />
  <global-forwards />
  <action-mappings >
    <action
      attribute="strutsAjaxForm"
      input="/form/strutsAjax.jsp"
      name="strutsAjaxForm"
      path="/strutsAjax"
      scope="request"
      type="com.StrutsAjaxTest.struts.action.StrutsAjaxAction">
      <forward name="success" path="/form/MyJsp.jsp" />
    </action>

  </action-mappings>

  <message-resources parameter="com.yourcompany.struts.ApplicationResources" />
</struts-config>
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1 楼 oolala 2010-02-05  
很好，例子不错。
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