在我的网站 ( http://urlsaf.com/m8 ) 中，我已经添加了一个基于 Ajax 的评级系统，但该系统无法正常工作。当我评价它时，它会重新加载页面。在我过去，这个基于 Ajax 的评级系统在没有使用 XMLHttpRequest 重新加载页面的情况下被成功评级。下面我将给出我的 rating.js 和 behavior.js 供大家参考。任何人都请给出我的 Ajax 冲突错误的解决方案。提前致谢。
1.rating.js
var xmlhttp if (!xmlhttp && typeof XMLHttpRequest!='undefined') {
try {
xmlhttp = new XMLHttpRequest();
} catch (e) {
xmlhttp=false
}
}
function myXMLHttpRequest() {
var xmlhttplocal;
try {
xmlhttplocal= new ActiveXObject("Msxml2.XMLHTTP")
} catch (e) {
try {
xmlhttplocal= new ActiveXObject("Microsoft.XMLHTTP")
} catch (E) {
xmlhttplocal=false;
}
}
if (!xmlhttplocal && typeof XMLHttpRequest!='undefined') {
try {
var xmlhttplocal = new XMLHttpRequest();
} catch (e) {
var xmlhttplocal=false;
alert('couldn\'t create xmlhttp object');
}
}
return(xmlhttplocal);
}
function sndReq(vote,id_num,ip_num,units) {
var theUL = document.getElementById('unit_ul'+id_num); // the UL
// switch UL with a loading div
theUL.innerHTML = '<div class="loading"></div>';
xmlhttp.open('get', 'rpc.php?j='+vote+'&q='+id_num+'&t='+ip_num+'&c='+units);
xmlhttp.onreadystatechange = handleResponse;
xmlhttp.send(null);
}
function handleResponse() {
if(xmlhttp.readyState == 4){
if (xmlhttp.status == 200){
var response = xmlhttp.responseText;
var update = new Array();
if(response.indexOf('|') != -1) {
update = response.split('|');
changeText(update[0], update[1]);
}
}
}
}
function changeText( div2show, text ) {
// Detect Browser
var IE = (document.all) ? 1 : 0;
var DOM = 0;
if (parseInt(navigator.appVersion) >=5) {DOM=1};
// Grab the content from the requested "div" and show it in the "container"
if (DOM) {
var viewer = document.getElementById(div2show);
viewer.innerHTML = text;
} else if(IE) {
document.all[div2show].innerHTML = text;
}
}
/* =============================================================== */
var ratingAction = {
'a.rater' : function(element){
element.onclick = function(){
var parameterString = this.href.replace(/.*\?(.*)/, "$1"); // onclick="sndReq('j=1&q=2&t=127.0.0.1&c=5');
var parameterTokens = parameterString.split("&"); // onclick="sndReq('j=1,q=2,t=127.0.0.1,c=5');
var parameterList = new Array();
for (j = 0; j < parameterTokens.length; j++) {
var parameterName = parameterTokens[j].replace(/(.*)=.*/, "$1"); // j
var parameterValue = parameterTokens[j].replace(/.*=(.*)/, "$1"); // 1
parameterList[parameterName] = parameterValue;
}
var theratingID = parameterList['q'];
var theVote = parameterList['j'];
var theuserIP = parameterList['t'];
var theunits = parameterList['c'];
//for testing alert('sndReq('+theVote+','+theratingID+','+theuserIP+','+theunits+')'); return false;
sndReq(theVote,theratingID,theuserIP,theunits); return false;
}
}
};
Behaviour.register(ratingAction);
2.behavior.js
var Behaviour = {
list : new Array,
register : function(sheet){
Behaviour.list.push(sheet);
},
start : function(){
Behaviour.addLoadEvent(function(){
Behaviour.apply();
});
},
apply : function(){
for (h=0;sheet=Behaviour.list[h];h++){
for (selector in sheet){
list = document.getElementsBySelector(selector);
if (!list){
continue;
}
for (i=0;element=list[i];i++){
sheet[selector](element);
}
}
}
},
addLoadEvent : function(func){
var oldonload = window.onload;
if (typeof window.onload != 'function') {
window.onload = func;
} else {
window.onload = function() {
oldonload();
func();
}
}
}
}
Behaviour.start();
function getAllChildren(e) {
// Returns all children of element. Workaround required for IE5/Windows. Ugh.
return e.all ? e.all : e.getElementsByTagName('*');
}
document.getElementsBySelector = function(selector) {
// Attempt to fail gracefully in lesser browsers
if (!document.getElementsByTagName) {
return new Array();
}
// Split selector in to tokens
var tokens = selector.split(' ');
var currentContext = new Array(document);
for (var i = 0; i < tokens.length; i++) {
token = tokens[i].replace(/^\s+/,'').replace(/\s+$/,'');;
if (token.indexOf('#') > -1) {
// Token is an ID selector
var bits = token.split('#');
var tagName = bits[0];
var id = bits[1];
var element = document.getElementById(id);
if (tagName && element.nodeName.toLowerCase() != tagName) {
// tag with that ID not found, return false
return new Array();
}
// Set currentContext to contain just this element
currentContext = new Array(element);
continue; // Skip to next token
}
if (token.indexOf('.') > -1) {
// Token contains a class selector
var bits = token.split('.');
var tagName = bits[0];
var className = bits[1];
if (!tagName) {
tagName = '*';
}
// Get elements matching tag, filter them for class selector
var found = new Array;
var foundCount = 0;
for (var h = 0; h < currentContext.length; h++) {
var elements;
if (tagName == '*') {
elements = getAllChildren(currentContext[h]);
} else {
elements = currentContext[h].getElementsByTagName(tagName);
}
for (var j = 0; j < elements.length; j++) {
found[foundCount++] = elements[j];
}
}
currentContext = new Array;
var currentContextIndex = 0;
for (var k = 0; k < found.length; k++) {
if (found[k].className && found[k].className.match(new RegExp('\\b'+className+'\\b'))) {
currentContext[currentContextIndex++] = found[k];
}
}
continue; // Skip to next token
}
// Code to deal with attribute selectors
if (token.match(/^(\w*)\[(\w+)([=~\|\^\$\*]?)=?"?([^\]"]*)"?\]$/)) {
var tagName = RegExp.$1;
var attrName = RegExp.$2;
var attrOperator = RegExp.$3;
var attrValue = RegExp.$4;
if (!tagName) {
tagName = '*';
}
// Grab all of the tagName elements within current context
var found = new Array;
var foundCount = 0;
for (var h = 0; h < currentContext.length; h++) {
var elements;
if (tagName == '*') {
elements = getAllChildren(currentContext[h]);
} else {
elements = currentContext[h].getElementsByTagName(tagName);
}
for (var j = 0; j < elements.length; j++) {
found[foundCount++] = elements[j];
}
}
currentContext = new Array;
var currentContextIndex = 0;
var checkFunction; // This function will be used to filter the elements
switch (attrOperator) {
case '=': // Equality
checkFunction = function(e) { return (e.getAttribute(attrName) == attrValue); };
break;
case '~': // Match one of space seperated words
checkFunction = function(e) { return (e.getAttribute(attrName).match(new RegExp('\\b'+attrValue+'\\b'))); };
break;
case '|': // Match start with value followed by optional hyphen
checkFunction = function(e) { return (e.getAttribute(attrName).match(new RegExp('^'+attrValue+'-?'))); };
break;
case '^': // Match starts with value
checkFunction = function(e) { return (e.getAttribute(attrName).indexOf(attrValue) == 0); };
break;
case '$': // Match ends with value - fails with "Warning" in Opera 7
checkFunction = function(e) { return (e.getAttribute(attrName).lastIndexOf(attrValue) == e.getAttribute(attrName).length - attrValue.length); };
break;
case '*': // Match ends with value
checkFunction = function(e) { return (e.getAttribute(attrName).indexOf(attrValue) > -1); };
break;
default :
// Just test for existence of attribute
checkFunction = function(e) { return e.getAttribute(attrName); };
}
currentContext = new Array;
var currentContextIndex = 0;
for (var k = 0; k < found.length; k++) {
if (checkFunction(found[k])) {
currentContext[currentContextIndex++] = found[k];
}
}
// alert('Attribute Selector: '+tagName+' '+attrName+' '+attrOperator+' '+attrValue);
continue; // Skip to next token
}
if (!currentContext[0]){
return;
}
// If we get here, token is JUST an element (not a class or ID selector)
tagName = token;
var found = new Array;
var foundCount = 0;
for (var h = 0; h < currentContext.length; h++) {
var elements = currentContext[h].getElementsByTagName(tagName);
for (var j = 0; j < elements.length; j++) {
found[foundCount++] = elements[j];
}
}
currentContext = found;
}
return currentContext;
}
/* That revolting regular expression explained
/^(\w+)\[(\w+)([=~\|\^\$\*]?)=?"?([^\]"]*)"?\]$/
\---/ \---/\-------------/ \-------/
| | | |
| | | The value
| | ~,|,^,$,* or =
| Attribute
Tag
*/