复用jquery的ajax调用模块

每次都写一堆.ajax，真的很麻烦。因此封装在一个模块中比较好。

第一，ajax调用出错时，自动弹出错误对话框，对话框使用的artDialog。

第二，提供基本的post，get简单调用方式。参数有限，适合就好。

第三，支持中英文。

下面是我的代码，大家可以自己扩充：

require.config({
	paths: {
		"jquery": "../thirdParty/jquery-1.8.0.min",
		"dialog": "./dialog"
	}
});

define("ajaxUtility", ["jquery", "dialog"], function ($, dialog) {
	'use strict';

	return {
		cancelText: "",

		language: "",

		// language should be either 'cn' or 'en'
		init: function (language) {
			this.language = language;
			dialog.init(language);
			if (this.language === "cn") {
				this.cancelText = "取消";
			} else {
				this.cancelText = "Cancel";
			}
		},

		// popup an error dialog
		defualtErrorHandler: function (jqXHR, textStatus) {
			dialog.error("Ajax request got an error:" + textStatus);
		},

		// execute .ajax function and except the returned data type is json
		// handler(msg) will be callback when .ajax succeeded
		// errorHandler(jqXHR, textStatus) willl be callback if .ajax failed
		exe: function (urlPath, asyncWay, method, dataValue, handler, errorHandler, context) {
			var error, request;
			if (errorHandler) {
				error = errorHandler;
			} else {
				error = this.defaultErrorHandler;
			}
			request = $.ajax({
				url: urlPath,
				async: asyncWay,
				type: method,
				dataType: 'json',
				data: dataValue
			});

			// request.done only calls function(msg), but we can use
			// closure to pass ob and hdl arguments
			request.done(
				(function (ob, hdl) {
					return function (msg) {
						hdl(ob, msg);
					};
				}(context, handler))
			);
			request.fail(error);
		},

		// post data to server using .ajax
		// handler(ob, msg) will be callback when .ajax succeeded
		// errorHandler(jqXHR, textStatus) willl be callback if .ajax failed
		post: function (urlPath, asyncWay, dataValue, handler, errorHandler, context) {
			this.exe(urlPath, asyncWay, 'POST', dataValue, handler, errorHandler, context);
		},

		// call web method with GET to server using .ajax
		// handler(ob, msg) will be callback when .ajax succeeded
		// errorHandler(jqXHR, textStatus) willl be callback if .ajax failed
		get: function (urlPath, asyncWay, dataValue, handler, errorHandler, context) {
			this.exe(urlPath, asyncWay, 'GET', dataValue, handler, errorHandler, context);
		}
	};
});

调用很简单：

	    data = {
		'ids': ids,
		'message': content,
		'length': content.length,
		"groupId": $("#groupsSel").val(),
		"excludes": this.excludesToString(),
		"includes": this.includesToString(),
		"baseOp": this.baseOp
	    };

	    this.ajaxUtility.post('saveDigitalMessage', false, data, this.afterSaveDigitMessage, null, this);