Question

我正在使用OData＆amp; amp; Web API通过ajax。我尝试使用OData过滤器属性从服务器端进行分页。这是我的Controller代码。

[RoutePrefix("OData/Products")]
    public class ProductsController : ODataController
    {
        private List<Product> products = new List<Product>
        {
            new Product() { Id = 1, Name = "Thermo King MP-3000", Price = 300, Category = "Thermo King" },
            new Product() { Id = 2, Name = "Thermo King MP-4000", Price = 500, Category = "Thermo King" },
            new Product() { Id = 3, Name = "Daikin Decos III c", Price = 200, Category = "Daikin" },
            new Product() { Id = 4, Name = "Daikin Decos III d", Price = 400, Category = "Daikin" },
            new Product() { Id = 5, Name = "Starcool RCC5", Price = 600, Category = "Starcool" },
            new Product() { Id = 6, Name = "Starcool SCC5", Price = 700, Category = "Starcool" }
        };


    [EnableQuery(PageSize=2)]
    public IQueryable<Product> Get()
    {
        return products.AsQueryable<Product>();
    }

    //[EnableQuery]
    //public SingleResult<Product> Get([FromODataUri] int id)
    //{
    //    var result = products.Where(x => x.Id.Equals(id)).AsQueryable();
    //    return SingleResult.Create<Product>(result);
    //}

    [EnableQuery]
    public Product Get([FromODataUri] int id)
    {
        return products.First(x => x.Id.Equals(id));
    }
}

这是我的javascript代码：

<script type="text/javascript">
    $(document).ready(function () {
        var apiUrl = "http://localhost:56963/OData/Products";

        $.getJSON(apiUrl,
                function (data) {
                    $("#div_content").html(window.JSON.stringify(data));
                }
            );

        //$.get(apiUrl,
        //function (data) {
        //    alert(data[0]);
        //    $("#div_content").html(data);
        //});
    });
</script>

OData的响应是JSON结果，如：

{＆＃34; @ odata.context＆＃34;：＆＃34; http://localhost:56963/OData/ $元数据＃产品＆＃34;＆＃34;值＆＃34;：[{＆＃34;标识＆＃ 34;：1，＆＃34;名称＆＃34;：＆＃34; Thermo King MP-3000＆＃34;，＆＃34;价格＆＃34;：300，＆＃34;类别＆＃34;：＆＃34 ; Thermo King＆＃34;}，{＆＃34; Id＆＃34;：2，＆＃34; Name＆＃34;：＆＃34; Thermo King MP-4000＆＃34;，＆＃34; Price＆＃34; ：500，＆＃34;类别＆＃34;：＆＃34; Thermo King＆＃34;}]，＆＃34; @ odata.nextLink＆＃34;：＆＃34; http://localhost:56963/OData/Products？$ skip = 2＆＃34;}

我试图获得＆＃34; @ odata.nextLink＆＃34;但失败了，没有办法得到＆＃34; odata.nextLink＆＃34;通过＆＃34;数据。@ odata.nextLink＆＃34;来自javascript。

任何人都可以帮我解决这个问题吗？

Answer 1

将字符串解析为json后，数据['@ odata.nextLink']可以正常工作：

var data = '{"@odata.context":"http://localhost:56963/OData/$metadata#Products","value":[{"Id":1,"Name":"Thermo King MP-3000","Price":300,"Category":"Thermo King"},{"Id":2,"Name":"Thermo King MP-4000","Price":500,"Category":"Thermo King"}],"@odata.nextLink":"http://localhost:56963/OData/Products?$skip=2"}';
data = JSON.parse(data);
alert(data['@odata.nextLink']);

如何通过AJAX从OData响应中获取属性？

1 个答案: