//异步ajax调用
/**
 * 异步调用ajax，成功后返回值，作为回调函数的参数 调用失败会提示
 * 
 * @param {}
 *            urlStr
 * @param {}
 *            paramsObj
 * @param {}
 *            callbackFunc
 */
function ajaxCall(urlStr, paramsObj, callbackFunc) {
	Ext.Ajax.request({
				url : urlStr,
				params : paramsObj,
				method : 'POST',
				success : function(response) {
					if (callbackFunc) {
						var result = Ext.util.JSON
								.decode(response.responseText);
						var cbfn = callbackFunc.createCallback(result);
						cbfn();
					}
				},
				failure : function() {
					Ext.Msg.alert("提示", "方法调用失败");
				}
			});
}
//同步ajax调用
/**
 * 同步ajax调用 返回json Object
 * 
 * @param {}
 *            urlStr
 * @param {}
 *            paramsStr 为字符串键值对形式“key=value&key2=value2”
 * @return {} 返回json Object
 */
function ajaxSyncCall(urlStr, paramsStr) {
	var obj;
	var value;
	if (window.ActiveXObject) {
		obj = new ActiveXObject('Microsoft.XMLHTTP');
	} else if (window.XMLHttpRequest) {
		obj = new XMLHttpRequest();
	}
	obj.open('POST', urlStr, false);
	obj.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
	obj.send(paramsStr);
	var result = Ext.util.JSON.decode(obj.responseText);
	return result;
}

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1 楼 silvernet 2011-03-14  

very good!