Question

在反序列化时，我在json Web服务中得到了字节数组的空值。但是当从浏览器调用时它返回字节数组。 C＃代码：

var url = re.DownloadString("XXXX/ListService.svc/lstFooddtl/1/21");

 var a = JsonConvert.DeserializeObject<FooddtlResult>(url);

在食物照片中我得到了null ...当我反序列化时...... c＃课程：

public class photo
    {
        public byte[] food_photo { get; set; }

    }
public class Food
{
    public int food_id { get; set; }
    public string food_name { get; set; }
    public photo[] food_photo { get; set; }
    public string unitcost { get; set; }
}
public class FooddtlResult
{
    public Food[] Result { get; set; }
}
{"Result":[{"food_id":"61","food_name":"Idli","food_photo":[255,216,255,224,0,....217],"unitcost":null}]}

Answer 1

您的模型与JSON不匹配。要正确反序列化，请将Food类更改为

public class Food
{
    public int food_id { get; set; }
    public string food_name { get; set; }
    public byte[] food_photo { get; set; }
    public string unitcost { get; set; }
}

并删除photo类。

否则，如果你想保留模型结构，那么正确的JSON应该是：

{"Result":[{"food_id":"61","food_name":"Idli","food_photo":[{"food_photo":[255,216,255,224,0,....217]},{"food_photo":[255,...]},...],"unitcost":null}]}

在列表中获取json字节数组

1 个答案: