jquery ajax

function invokeJava(action, data, isShowLoading)
{
    if(typeof(isShowLoading) == "undefined" || isShowLoading)
    {
        showLoading();
    }
    
    var result = $.ajax({
        url: action,
        method: "POST",
        data: data,
        async: false,
        success : function(msg) 
        { 
        }
    });

    if(isShowLoading == undefined || isShowLoading)
    {
        hideLoading();
    }
    return result.responseText;
}

function showLoading()
{
    $("body").append("<div class='hs_mask'><img src='img/loading.gif'></div>");
}
function hideLoading()
{
    setTimeout(function(){
        $("div.hs_mask").remove();
    }, 100);
}

此为异步加载数据

调用方法

function getParam(suitId,quantity){
        var data ={};
        data["suitId"] = suitId;
        data["quantity"] = quantity;
        return data;
    }

function addCartForSuit(){
        var suitId = $("#suitId").attr("value");
        var quantity = $("#quantity").attr("value");
        var param = getParam(suitId,quantity);
        var result = invokeJava("addCartForSuitAjax",param);//addCartForSuitAjax 为一个action
        if(result == "成功"){
            if(confirm("加入购物车成功，是否进入购物车")){
                window.location.href= "getCartForUcboss3_ShoppingCart";
            }else{
                history.go(-1);
            }
        }else{
            alert(result);
        }
    }