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優(yōu)化代碼是無止境的

隨筆 - 65, 文章 - 9, 評(píng)論 - 26, 引用 - 0

數(shù)據(jù)加載中……

js處理服務(wù)器返回的對(duì)象

格式一：

{
firstname:"Bruce",
lastname:"Perry",
gender:"M",
country:"USA"
}

代碼片段：

function handleJson(  ){
    if(request.readyState == 4){
        if(request.status == 200){
            var resp =  request.responseText;
            var func = new Function("return "+resp);
            var objt = func(  );
            var div = document.getElementById("json");
            stylizeDiv(resp,div);
            div = document.getElementById("props");
            div.innerHTML="<h4>In object form

</h4>"+
                          "<h5>Properties</h5>firstname= "+
                          objt.firstname +"<br />lastname="+
                          objt.lastname+ "<br />gender="+
                          objt.gender+ "<br />country="+
                          objt.country;
        } else {
            alert("A problem occurred with communicating between "+
                 "the XMLHttpRequest object and the server program.");
        }
    }//end outer if
}

格式二：

[
"basketball","football"
]

代碼片段：

//event handler for XMLHttpRequest

function handleResponse(){

try{

if(request.readyState == 4){

if(request.status == 200){

var resp = request.responseText;

if(resp != null){

//return value is a JSON array

var objt = eval(resp);

createChecks(objt);

}

} else {

//request.status is 503 if the application isn't available;

//500 if the application has a bug

alert(

"A problem occurred with communicating between"+

" the XMLHttpRequest object and the server program.");

}

}//end outer if

} catch (err) {

alert("It does not appear that the server "+

"is available for this application. Please"+

" try again very soon. \nError: "+err.message);

}

posted on 2011-06-08 11:15 lanjh 閱讀(440) 評(píng)論(0) 編輯收藏所屬分類: Java Web

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