<script type="text/javascript">

//① 設置變量
var xmlHttp ;
var flag = false ;
var package_name;

//② 創(chuàng)建XMLHttp對象
function createXMLHttp(){
if(window.XMLHttpRequest){
xmlHttp = new XMLHttpRequest() ;


} else {
xmlHttp = new ActiveXObject("Microsoft.XMLHTTP") ;

}

}

//③
function getPackage_name(package_name){

//創(chuàng)建XMLHttpRequest對象
createXMLHttp() ;

document.getElementById("msg").innerHTML=package_name;
//創(chuàng)建一個HTTP請求，以post方式將package_name交給AppInfoServlet
xmlHttp.open("post","AppInfoOneServlet?package_name="+package_name) ;


//調用回調函數 生成可視化的頁面響應

xmlHttp.onreadystatechange =checkCallback;

// 發(fā)送請求
xmlHttp.send(null) ;

//友好提示
document.getElementById("msg").innerHTML = "正在獲取信息，請耐心等候..." ;

}

//④ 回調函數
function checkCallback(){

if(xmlHttp.readyState == 4){
if(xmlHttp.status == 200){

var text = xmlHttp.responseText ;
var t=text.split('|');//當獲取的是多個值，并用"|"作為分割時
document.getElementById("msg").innerHTML =t[0]+ "<br>"+"<div id='container'>"+"<div id='content'>"+"<div id='slider'>"+"<ul>"+"<li>"+"<img src='"+t[1]+"' alt='Css Template Preview' />"+"</li>"+"<li>"+"<img src='"+t[2]+"' alt='Css Template Preview' />"+"</li>"+"</ul>"+"</div>"+"<h3>Android應用截圖展示</h3>"+"</div>"+"</div>"+"<center><a href='"+t[3]+"' target='_blank'><img src='./images/downloadsoruce.png'></a></center>" ;
//獲取的數據在id為“msg” 的標記中顯示出來，例如：<span id="msg"></span>
}
}
}
</script>

<a href="#bottom" onclick="getPackage_name('<%=ainfo.getPackage_name() %>')">獲取</a>

<span id="msg"></span>

public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {

request.setCharacterEncoding("utf-8");
response.setCharacterEncoding("utf-8");//必須在out前，否則傳輸的漢子為亂碼啊
PrintWriter out = response.getWriter();


String package_name=request.getParameter("package_name");

AppDaoImpl adi=new AppDaoImpl();
AppInfo ainfo=new AppInfo();
ainfo=adi.getOneAppInfo(package_name);


out.print(ainfo.getDescription()+"|"+ainfo.getScreen_1_path()+"|"+ainfo.getScreen_2_path()+"|"+ainfo.getDownload_path());
}