Ajax 调用restful服务返回json

$(function(){
    init();
})

function init(){
  myShopCar();//加载购物车信息
}
//我的购物车
function myShopCar(){
   var result = "";
    var callType = "GET";//请求方式 
    var dataType = "json";//数据类型text xml json  script  jsonp 
    param = {
        "userid":usid
    };
    var params = JSON.stringify(param);
    var userDetailUrl = rootPath+"webresources/products/queryMyShopCar?params="+params;
    if(""!= usid){
        result = sendAjaxRequest(userDetailUrl,callType,dataType);
        setMyShopList(result.data);
    } 
}


//我的购物车界面
function setMyShopList(objVal){

    $("#shopCarId").html("");
    shopHtml="";
    shopHtml+='<table width="100%" border="0" cellspacing="0" cellpadding="0" class="tab02"> ';
    shopHtml+='<tr> ';
    shopHtml+='<td  class="ta" style="width:8%;"><input id="allCheckBox" type="checkbox" value="product1" onclick="selectAll();" />全选</td> ';
    shopHtml+='<td  class="ta" style="width:60%;">商品名称</td> ';
    shopHtml+='<td  class="ta">单价</td> ';
    shopHtml+='<td  class="ta">操作</td> ';
    shopHtml+='</tr> ';
    for(var i=0; i<objVal.length; i++){
            shopHtml+='<tr> ';
            shopHtml+='<td><input id="'+objVal[i].productId+'" name="cartCheckBox" type="checkbox" value="product1" onclick="selectSingle()"></td> ';
            shopHtml+='<td ><img class="newsListsImg" src="'+rootPathImage+objVal[i].Imgurl+'"> ';
            shopHtml+='<a href="#"  style="color:#1965B3">'+objVal[i].productName+'</a></td> ';
            shopHtml+='<td style="color:#FE6400">￥'+objVal[i].Productprice+'</td> ';
            shopHtml+="<td  ><a href="javascript:delSelect('"+objVal[i].Shopcarid+"');"  style='color:#1965B3'> 删除</a></td>";
            shopHtml+='</tr> ';
    }
    shopHtml+='<tr > ';
    shopHtml+='<td colspan="4" style="text-align:center;"><input onclick="submit();" type="button" value="购买产品"/></td> ';
    shopHtml+='</tr> ';
    shopHtml+='</table> ';
    $("#shopCarId").append(shopHtml);
}

/**
 * 删除选择的购物车产品
 * @param shopcarid 
 */
function delSelect(shopcarid){
        var result = "";
        var callType = "GET";//请求方式 
        var dataType = "json";//数据类型text xml json  script  jsonp 
        param = {
            "shopcarid":shopcarid
         };
        var params = JSON.stringify(param);
        var delUrl=rootPath+'webresources/products/deleteMyShopCar?params='+params;
        if(""!= shopcarid){
        result = sendAjaxRequest(delUrl,dataType);
        if(result){
            alert("删除成功！");
            myShopCar();
        }else{
            alert("删除失败！");
        }
        
        
    }
}
//公共ajax方法,取得返回的整个JSON对象
/**
 * 公共ajax方法,取得返回的整个JSON对象
 *
 * @param callUrl
 *            访问地址
 * @param callType
 *            请求类型（"get" or "post"）
 * @param dataType
 *             请求的数据类型
 * @returns 返回json数据，如后台返回的是{"SUCCESS": true,"DATA":
 *          {"goodsName":"商品添加","price":"56.0","username":"巴金"},"msg":"成功！"} 那么返回值是
 *          DATA的值：{"goodsName":"商品添加","username":"巴金"}             
 */
function sendAjaxRequest(callUrl,dataType) {
    var resultData = "";
    $.ajax( {
        type : callType,//请求方式  
        url : callUrl,//地址，就是action请求路径 
        async : false,dataType : dataType,//数据类型text xml json  script  jsonp  
        success : function (data) {
            //返回的参数就是 action里面所有的有get和set方法的参数  
            resultData = data;
        }
    });
    return resultData;
}

     //查询我的购物车    
    @GET
    @Path("queryMyShopCar")
    @Produces(MediaType.APPLICATION_JSON + ";charset=UTF-8")
    public JSONObject queryMyShopCar(@QueryParam("params") String params) {
        JSONObject jsonObj = (JSONObject) JSONObject.parse(params);
        String userid = jsonObj.getString("userid");
        ApplicationModule am = Configuration.createRootApplicationModule(Constant.AMDEF,Constant.CONFIG);
        ViewObject vo = am.findViewObject("QueryProductDetailView1");
        QueryProductDetailViewImpl tpo = (QueryProductDetailViewImpl) vo;
        Row row = tpo.queryMyShop(userid);
        JSONObject contentObj = null;
        JSONArray contentArray = new JSONArray();
        JSONObject obj = null;
        try {
            contentObj = new JSONObject();
            contentObj.put(Constant.SUCCESS,true);
            contentObj.put(Constant.MSG,"查询成功");
            contentObj.put(Constant.DATA,contentArray);
            while (row != null) {
                obj = new JSONObject();
                obj.put("productName",row.getAttribute("Productname") == null ? "" : row.getAttribute("Productname")); 
                obj.put("Addtime",row.getAttribute("Addtime") == null ? "" : row.getAttribute("Addtime"));
                obj.put("Productprice",row.getAttribute("Productprice") == null ? "" : row.getAttribute("Productprice")); 
                obj.put("Productenname",row.getAttribute("Productenname") == null ? "" : row.getAttribute("Productenname"));
                obj.put("Shopcarid",row.getAttribute("Shopcarid") == null ? "" : row.getAttribute("Shopcarid"));
                obj.put("productId",row.getAttribute("Id") == null ? "" : row.getAttribute("Id"));
                obj.put("Imgurl",row.getAttribute("Imgurl") == null ? "" : row.getAttribute("Imgurl"));
                contentArray.add(obj);
                row = tpo.next();
            }
        } catch (Exception e) {
            e.printStackTrace();
            contentObj = new JSONObject();
            contentObj.put(Constant.SUCCESS,false);
            contentObj.put(Constant.MSG,e.getMessage());
            contentObj.put(Constant.DATA,contentArray);
        }finally {
            Configuration.releaseRootApplicationModule(am,true);
        }
        return contentObj;
    }

    //删除选中产品
    @GET
    @Path("deleteMyShopCar")
    @Produces(MediaType.APPLICATION_JSON + ";charset=UTF-8")
    public Boolean deleteMyShopCar(@QueryParam("params") String params) {
        Boolean result = false;
        JSONObject jsonObj = (JSONObject) JSONObject.parse(params);
        String shopcarid = jsonObj.getString("shopcarid");
        ApplicationModule am = Configuration.createRootApplicationModule(Constant.AMDEF,Constant.CONFIG);
        try {
            ViewObject vo = am.findViewObject("TShoppingCartView1");
            TShoppingCartViewImpl tpo = (TShoppingCartViewImpl) vo;
            Boolean bl = tpo.deleteMyShop(shopcarid);
            if (bl) {
                am.getTransaction().commit();
                result = true;
            } else {
                result = false;
            }
        } catch (Exception e) {
            result = false;
            e.printStackTrace();
        } finally {
            Configuration.releaseRootApplicationModule(am,true);
        }
        return result;
    }

（编辑：李大同）

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