视频1 视频21 视频41 视频61 视频文章1 视频文章21 视频文章41 视频文章61 推荐1 推荐3 推荐5 推荐7 推荐9 推荐11 推荐13 推荐15 推荐17 推荐19 推荐21 推荐23 推荐25 推荐27 推荐29 推荐31 推荐33 推荐35 推荐37 推荐39 推荐41 推荐43 推荐45 推荐47 推荐49 关键词1 关键词101 关键词201 关键词301 关键词401 关键词501 关键词601 关键词701 关键词801 关键词901 关键词1001 关键词1101 关键词1201 关键词1301 关键词1401 关键词1501 关键词1601 关键词1701 关键词1801 关键词1901 视频扩展1 视频扩展6 视频扩展11 视频扩展16 文章1 文章201 文章401 文章601 文章801 文章1001 资讯1 资讯501 资讯1001 资讯1501 标签1 标签501 标签1001 关键词1 关键词501 关键词1001 关键词1501 专题2001
来自chinaz的ajax获取评论代码_javascript技巧
2020-11-27 20:39:11 责编:小采
文档

ajax获取到的字符是类似下面的内容
代码如下:
{a:"支持:[ 0 ] 反对:[ 0 ]中国站长站网友:匿名 于 2008-04-25 评论道:谁认为投放了Google AdSense的站点就不允许进行推广了?傻子吧",b:1}

然后用下面的ajax进行输出
代码如下:

var key='';
var str=new Array();

function createAjaxObj(){
var httprequest=false
//document.domain='chinaz.com';
if (window.XMLHttpRequest){ // if Mozilla, Safari etc
httprequest=new XMLHttpRequest()
if (httprequest.overrideMimeType)
httprequest.overrideMimeType('text/xml');
}
else if (window.ActiveXObject){ // if IE
try
{
httprequest=new ActiveXObject("Msxml2.XMLHTTP");
}
catch (e)
{
try
{
httprequest=new ActiveXObject("Microsoft.XMLHTTP");
}
catch (e){}
}
}
return httprequest;
}

function load_feedback(arcID,pg){

/*
var url = "http://www.chinaz.com/plus/feedback_ajax.php?action=show&arcID="+arcID+"&pg="+pg;
var ajax = new oAjax();
// 是否显示错误
//ajax.error = true;
// 请求的页面的编码为'gb2312'或空
//ajax.encode = 'gb2312';
// 回调函数
ajax.callback = function (content) {
// 处理返回内容
eval('var obj = ' + content);
document.getElementById('fedbk').innerHTML=obj.a;
document.getElementById('fedcount').innerHTML=obj.b;
};
ajax.send(url);
*/

var xmlhttp = createAjaxObj();
try
{

var params="action=show&arcID="+arcID+"&pg="+pg;
xmlhttp.abort();

xmlhttp.open("get","/plus/feedback_ajax.php?"+params,true);

xmlhttp.setRequestHeader("Content-type", "text/html;charset=gb2312");

xmlhttp.setRequestHeader("If-Modified-Since","0");

xmlhttp.setRequestHeader("Content-length", params.length);

xmlhttp.setRequestHeader("Connection", "close");

xmlhttp.onreadystatechange=f

xmlhttp.send(null);

}catch(ex){}
function f()
{

if(xmlhttp.readyState!= 4 || xmlhttp.status!=200 )
return ;
var b= xmlhttp.responseText;
var obj = eval("("+b+")");
document.getElementById('fedbk').innerHTML=obj.a;
document.getElementById('fedcount').innerHTML=obj.b;
document.getElementById('feedcounttop').innerHTML=obj.b;
}
}


function load_allfeedback(arcID,pg){

var xmlhttp = createAjaxObj();
try
{

var params="action=showall&arcID="+arcID+"&pg="+pg;
xmlhttp.abort();

xmlhttp.open("get","/plus/feedback_ajax.php?"+params,true);

xmlhttp.setRequestHeader("Content-type", "text/html;charset=gb2312");

xmlhttp.setRequestHeader("If-Modified-Since","0");

xmlhttp.setRequestHeader("Content-length", params.length);

xmlhttp.setRequestHeader("Connection", "close");

xmlhttp.onreadystatechange=f

xmlhttp.send(null);

}catch(ex){}
function f()
{

if(xmlhttp.readyState!= 4 || xmlhttp.status!=200 )
return ;
var content= xmlhttp.responseText;
var obj = eval("("+content+")");
// eval('var obj = ' + content);
document.getElementById('fedbk').innerHTML=obj.a;
//document.getElementById('fedcount').innerHTML=obj.b;
}
}

function feed_back(){

var msg = trim(document.getElementById('msg').value);
var arcID = document.getElementById('arcID').value;
var username = trim(document.getElementById('username').value);
var pwd = trim(document.getElementById('pwd').value);
var checkbox = document.getElementById('notuser');
if(checkbox.checked)
var notuser = 1;
else
var notuser = 0;


var xmlhttp = createAjaxObj();
try
{

params="action=send&arcID="+arcID+"&msg="+msg+"&username="+username
+"&pwd="+pwd+"¬user="+notuser;

xmlhttp.abort();

xmlhttp.open("get","/plus/feedback_ajax.php?"+params,true);

xmlhttp.setRequestHeader("Content-type", "text/html;charset=gb2312");

xmlhttp.setRequestHeader("If-Modified-Since","0");

xmlhttp.setRequestHeader("Content-length", params.length);

xmlhttp.setRequestHeader("Connection", "close");

xmlhttp.onreadystatechange=f

xmlhttp.send(null);

}catch(ex){}
function f()
{
if(xmlhttp.readyState!= 4 || xmlhttp.status!=200 )
return ;
var arr = xmlhttp.responseText.split("@:");

if(!arr[1]){
alert(xmlhttp.responseText);
}
else{
if(arr[0] != 'true')
alert(arr[0]);
alert(arr[2]);
ck_yzimg();
load_feedback(arr[1],1);
}
}

}

function goodbad(fid,arcid,actname,pg){


var xmlhttp = createAjaxObj();

try
{
params = "action="+actname+"&fid="+fid+"&arcID="+arcid+"&pg="+pg;

xmlhttp.abort();

xmlhttp.open("get","/plus/feedback_ajax.php?"+params,true);

xmlhttp.setRequestHeader("Content-type", "text/html;charset=gb2312");

xmlhttp.setRequestHeader("If-Modified-Since","0");

xmlhttp.setRequestHeader("Content-length", params.length);

xmlhttp.setRequestHeader("Connection", "close");

xmlhttp.onreadystatechange=f

xmlhttp.send(null);

}catch(ex){}
function f()
{
if(xmlhttp.readyState!= 4 || xmlhttp.status!=200 )
return ;
var arr = xmlhttp.responseText.split("@:");

if(!arr[1])
alert(xmlhttp.responseText);
else{
alert(arr[0]);
load_feedback(arr[1],arr[2]);
}
}

}

function goodbad2(fid,arcid,actname,pg){


var xmlhttp = createAjaxObj();

try
{
params = "action="+actname+"&fid="+fid+"&arcID="+arcid+"&pg="+pg;

xmlhttp.abort();

xmlhttp.open("get","/plus/feedback_ajax.php?"+params,true);

xmlhttp.setRequestHeader("Content-type", "text/html;charset=gb2312");

xmlhttp.setRequestHeader("If-Modified-Since","0");

xmlhttp.setRequestHeader("Content-length", params.length);

xmlhttp.setRequestHeader("Connection", "close");

xmlhttp.onreadystatechange=f

xmlhttp.send(null);

}catch(ex){}
function f()
{
if(xmlhttp.readyState!= 4 || xmlhttp.status!=200 )
return ;
var arr = xmlhttp.responseText.split("@:");

if(!arr[1])
alert(xmlhttp.responseText);
else{
alert(arr[0]);
load_allfeedback(arr[1],arr[2]);
}
}

}

function pg(vl){
var arcID = document.getElementById('arcID').value;
load_feedback(arcID,vl);
}
function pg2(arcID,vl){
//var arcID = document.getElementById('arcID').value;
load_allfeedback(arcID,vl);
}
function ck_yzimg(){
//document.all.cknum.value='';
document.all.msg.value='';
document.all.username.value='';
document.all.pwd.value='';
document.getElementsByName('sb')[0].disabled = false;
//document.all.img1.onclick();
}

function trim(s) {
return s.replace( /^\s*/, "" ).replace( /\s*$/, "" );

}

//////
/*
String.prototype.Contains = function(str) {
return (this.indexOf(str) > -1);
};
var Browser = {
s : navigator.userAgent.toLowerCase()
};
(function (b) {
b.IsIE = b.s.Contains('msie');
b.IsIE5 = b.s.Contains('msie 5');
b.IsIE6 = b.s.Contains('msie 6');
b.IsIE7 = b.s.Contains('msie 7');
b.IsIE56 = !b.IsIE7 && (b.IsIE6 || b.IsIE5);
b.IsGecko = b.s.Contains('gecko');
b.IsSafari = b.s.Contains('safari');
b.IsOpera = b.s.Contains('opera');
b.IsMac = b.s.Contains('macintosh');

b.IsIELike = (b.IsIE || b.IsOpera);
b.IsGeckoLike = (b.IsGecko || b.IsSafari);
}) (Browser);
function oAjax () {
this.req = null;
this.url = '';
this.content = '';
this.type = 'text';
this.encode = '';
this.asyn = true;
this.action = 'get';
this.error = false;
}
oAjax.prototype.init = function () {
if (window.XMLHttpRequest) {
this.req = new XMLHttpRequest();
}
else if (window.ActiveXObject) {
// isIE = true;
try {
this.req = new ActiveXObject("Msxml2.XMLHTTP");
}
catch (e) {
try {
this.req = new ActiveXObject("Microsoft.XMLHTTP");
}
catch(e) {
this.req = false;
}
}
}
var self = this;
if (this.req) {
this.req.onreadystatechange = function () {self.listener()};
}
};

oAjax.prototype.listener = function () {
if (this.req.readyState == 4) {
if (this.req.status == 200) {
// right
try {
this.callback(Browser.IsIE && this.encode == 'gb2312' ? oAjax.gb2utf8(this.req.responseBody) : (this.type == 'text' ? this.req.responseText : this.req.responseXML));
}
catch (e) {
this.halt('[callback] ' + e.name + ':' + e.message);
}
}
else {
// error
this.halt('[callback error] ' + this.req.status);
}
}
};

oAjax.prototype.send = function (url) {
this.init();

url = this.url = url || this.url || '';
this.content = !!this.content ? this.content : '';
this.encode = this.encode ? this.encode.toLowerCase() : '';
this.asyn = this.asyn == undefined ? true : !!this.asyn;
this.action = (this.action == undefined || this.action == 'get') ? 'Get' : 'Post';
this.error = this.error == undefined ? false : !!this.error;

if (! url && this.error) {
alert('Ajax请求URL不能为空。');
return;
}
try {
this.req.open(this.action, url, this.asyn);
}
catch (e) {
this.halt('[open] ' + e.name + ':' + e.message);
return;
}
try {
this.req.setRequestHeader('Connection', 'close');
this.req.setRequestHeader('Accept-Encoding', 'gzip, deflate');
this.req.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded' + (this.encode ? ';charset=' + this.encode : ''));
if(this.req.overrideMimeType && this.encode) {
this.req.overrideMimeType('text/xml' + (this.encode ? ';charset=' + this.encode : ''));
}
this.req.send(this.content);
}
catch (e) {
this.halt('[open] ' + e.name + ':' + e.message + '\n** 检查是否为跨域访问。');
}
};

oAjax.prototype.callback = function (content) {
//alert(content);
};

// abort
oAjax.prototype.abort = function () {
this.req.abort();
};

oAjax.prototype.halt = function (description) {
this.error && alert(description);
};

// gb2312 to utf8
oAjax.gb2utf8 = function (data) {
var glbEncode = [];
gb2utf8_data = data;
execScript("gb2utf8_data = MidB(gb2utf8_data, 1)", "VBScript");
var t = escape(gb2utf8_data).replace(/%u/g,"").replace(/(.{2})(.{2})/g,"%$2%$1").replace(/%([A-Z].)%(.{2})/g,"@$1$2");
t = t.split("@");
var i=0, j = t.length, k;
while(++i < j) {
k = t[i].substring(0,4);
if(!glbEncode[k]) {
gb2utf8_char = eval("0x" + k);
execScript("gb2utf8_char = Chr(gb2utf8_char)", "VBScript");
glbEncode[k] = escape(gb2utf8_char).substring(1, 6);
}
t[i] = glbEncode[k] + t[i].substring(4);
}
gb2utf8_data = gb2utf8_char = null;
return unescape(t.join("%"));
}
*/

核心代码
代码如下:
var b= xmlhttp.responseText;
var obj = eval("("+b+")");
document.getElementById('fedbk').innerHTML=obj.a;
document.getElementById('fedcount').innerHTML=obj.b;
document.getElementById('feedcounttop').innerHTML=obj.b;

下载本文
显示全文
专题