本文在是点击打开链接的博客技术基础上进行了优化，把同步请求设置成异步请求(防止堵塞)
前端代码如下:
include.js 代码如下(function(window, document, undefined) {
var Includehas43762264 = function() {}
Includehas43762264.prototype = {
//倒序循环
forEach: function(array, callback) {
var size = array.length;
for(var i = size - 1; i >= 0; i--){
callback.apply(array[i], [i]);
}
},
getFilePath: function() {
var curWwwPath=window.document.location.href;
var pathName=window.document.location.pathname;
var localhostPaht=curWwwPath.substring(0,curWwwPath.indexOf(pathName));
var projectName=pathName.substring(0,pathName.substr(1).lastIndexOf('/')+1);
return localhostPaht+projectName;
},
//获取文件内容
getFileContent: function(url,obj) {
var _this = this;
var ie = navigator.userAgent.indexOf('MSIE') > 0;
var o = ie ? new ActiveXObject('Microsoft.XMLHTTP') : new XMLHttpRequest();
o.onreadystatechange = function(){
if (this.readyState == 4 && this.status == 200) {
_this.stateChange(this.responseText,obj);
}
};
o.open('get', url, true);
o.send(null);
},
parseNode: function(content) {
var objE = document.createElement("div");
objE.innerHTML = content;
return objE.childNodes;
},
executeScript: function(content) {
var mac = /
var r = "";
while(r = mac.exec(content)) {
eval(r[1]);
}
},
getHtml: function(content) {
var mac = /
content.replace(mac, "");
return content;
},
getPrevCount: function(src) {
var mac = /\.\.\//g;
var count = 0;
while(mac.exec(src)) {
count++;
}
return count;
},
getRequestUrl: function(filePath, src) {
if(/http:\/\//g.test(src)){ return src; }
var prevCount = this.getPrevCount(src);
while(prevCount--) {
filePath = filePath.substring(0,filePath.substr(1).lastIndexOf('/')+1);
}
return filePath + "/"+src.replace(/\.\.\//g, "");
},
stateChange: function(responseText,obj){
//将文本转换成节点
var parent = obj.parentNode;
var includeNodes = this.parseNode(this.getHtml(responseText));
var size = includeNodes.length;
for(var i = 0; i < size; i++) {
parent.insertBefore(includeNodes[0], obj);
}
//执行文本中的额javascript
this.executeScript(responseText);
parent.removeChild(obj);
},
replaceIncludeElements: function() {
var $this = this;
var filePath = $this.getFilePath();
var includeTals = document.getElementsByTagName("include");
this.forEach(includeTals, function() {
//拿到路径
var src = this.getAttribute("src");
//拿到文件内容
$this.getFileContent($this.getRequestUrl(filePath, src),this);
})
}
}
window.onload = function() {
new Includehas43762264().replaceIncludeElements();
}
})(window, document)异步请求，这样就不会造成堵塞了。
