$.ajax({
	async : true , 
	type : 'POST', 
	url:'someurl', 
	contentType: "application/json; charset=utf-8", //
	processData:false, //To avoid making query String instead of JSON
	data: JSON.stringify({}), //some parameters. Json Object.
	success: function(data){
	},
	error: function(e){
	}
});

@RequestMapping("/someurl")
	public @ResponseBody Map<String, Object> someMethod(@RequestBody Map<String, Object> params){
		//do sth.
	}

location = {  
    host: "localhost:8080",   
    hostname: "localhost",   
    href: "http://localhost:8080/webcontext/index.html",   
    origin: "http://localhost:8080",   
    pathname: "/webcontext/index.html",   
    port: "8080",   
    protocol: "http:",   
    reload: function reload() { [native code] },   
    replace: function () { [native code] },   
    ...  
};  

location.pathname = 'someUrl'; // 跳转到http://localhost:8080/someUrl
location.href = 'someUrl'; //跳转到http://localhost:8080/webcontext/someUrl
location.href = 'http://www.google.com'; //跳转到http://www.google.com

$.fn.serializeObject = function(){
    var o = {};
    var a = this.serializeArray();
    $.each(a, function() {
        if (o[this.name] !== undefined) {
            if (!o[this.name].push) {
                o[this.name] = [o[this.name]];
            }
            o[this.name].push(this.value || '');
        } else {
            o[this.name] = this.value || '';
        }
    });
    return o;
};

$.fn.outerHtml = function(){
	return $("<p>").append(this.clone()).html();
};

$(':input','someFormSelector')  
	.not(':button, :submit, :reset, :hidden')  
	.val('')  
	.removeAttr('checked')  
	.removeAttr('selected');

document.write("<script language='javascript' src='someUrl/someScript.js' charset='utf-8'></script>");
//注意charset!!

/*!
 * jQuery Cookie Plugin v1.4.0
 * https://github.com/carhartl/jquery-cookie
 *
 * Copyright 2013 Klaus Hartl
 * Released under the MIT license
 */
(function (factory) {
	if (typeof define === 'function' && define.amd) {
		// AMD
		define(['jquery'], factory);
	} else if (typeof exports === 'object') {
		// CommonJS
		factory(require('jquery'));
	} else {
		// Browser globals
		factory(jQuery);
	}
}(function ($) {

	var pluses = /\+/g;

	function encode(s) {
		return config.raw ? s : encodeURIComponent(s);
	}

	function decode(s) {
		return config.raw ? s : decodeURIComponent(s);
	}

	function stringifyCookieValue(value) {
		return encode(config.json ? JSON.stringify(value) : String(value));
	}

	function parseCookieValue(s) {
		if (s.indexOf('"') === 0) {
			// This is a quoted cookie as according to RFC2068, unescape...
			s = s.slice(1, -1).replace(/\\"/g, '"').replace(/\\\\/g, '\\');
		}

		try {
			// Replace server-side written pluses with spaces.
			// If we can't decode the cookie, ignore it, it's unusable.
			// If we can't parse the cookie, ignore it, it's unusable.
			s = decodeURIComponent(s.replace(pluses, ' '));
			return config.json ? JSON.parse(s) : s;
		} catch(e) {}
	}

	function read(s, converter) {
		var value = config.raw ? s : parseCookieValue(s);
		return $.isFunction(converter) ? converter(value) : value;
	}

	var config = $.cookie = function (key, value, options) {

		// Write

		if (value !== undefined && !