UrlParm = function() { // url參數(shù)
var data, index;
(function init() {
data = [];
index = {};
var u = window.location.search.substr(1);
if (u != '') {
var parms = decodeURIComponent(u).split('&');
for (var i = 0, len = parms.length; i < len; i++) {
if (parms[i] != '') {
var p = parms[i].split("=");
if (p.length == 1 || (p.length == 2 && p[1] == '')) {
data.push(['']);
index[p[0]] = data.length - 1;
} else if (typeof(p[0]) == 'undefined' || p[0] == '') {
data[0] = [p[1]];
} else if (typeof(index[p[0]]) == 'undefined') { // c=aaa
data.push([p[1]]);
index[p[0]] = data.length - 1;
} else {// c=aaa
data[index[p[0]]].push(p[1]);
}
}
}
}
})();
return {
// 獲得參數(shù),類似request.getParameter()
parm : function(o) { // o: 參數(shù)名或者參數(shù)次序
try {
return (typeof(o) == 'number' ? data[o][0] : data[index[o]][0]);
} catch (e) {
}
},
//獲得參數(shù)組, 類似request.getParameterValues()
parmValues : function(o) { // o: 參數(shù)名或者參數(shù)次序
try {
return (typeof(o) == 'number' ? data[o] : data[index[o]]);
} catch (e) {}
},
//是否含有parmName參數(shù)
hasParm : function(parmName) {
return typeof(parmName) == 'string' ? typeof(index[parmName]) != 'undefined' : false;
},
// 獲得參數(shù)Map ,類似request.getParameterMap()
parmMap : function() {
var map = {};
try {
for (var p in index) { map[p] = data[index[p]]; }
} catch (e) {}
return map;
}
}
}();

//使用示例:
//url: http://127.0.0.1/demo.jsp?a&page=2&b=dd&c=123&b=dd2
UrlParm.parm(0) // 結(jié)果: "";
UrlParm.parm('a') // 結(jié)果: "";
UrlParm.parm('page') // 結(jié)果: "2";
UrlParm.parm(1) // 結(jié)果: "2";
UrlParm.parm("b") // 結(jié)果: "dd";
UrlParm.parmValues("b") // 結(jié)果: ["dd","dd2"];
UrlParm.hasParm("b") // 結(jié)果: true;
UrlParm.hasParm("x") // 結(jié)果: false;
UrlParm.parmMap() // 結(jié)果: {a:[""],page:[2],b:["dd","dd2"],c:["123"]};