REST服务Post创建以及调用小例子

最新推荐文章于 2021-06-30 17:31:47 发布

原创最新推荐文章于 2021-06-30 17:31:47 发布 · 8k 阅读

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本文提供了一个服务端REST接口的实现代码以及ASP.NET客户端如何调用该接口进行POST请求的例子。

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服务端接口代码

[OperationContract]
        [WebInvoke(UriTemplate = "TestAddData", Method = "POST")]
        [Description("测试添加")]
        string TestAddData();

接口实现类方法

public string TestAddData()
        {
            string postJson = string.Empty;
            try
            {
                if (!OperationContext.Current.RequestContext.RequestMessage.IsEmpty)
                {
                    using (var reader = OperationContext.Current.RequestContext.RequestMessage.GetReaderAtBodyContents())
                    {
                        if (reader.Read())
                        {
                            postJson = new string(Encoding.UTF8.GetChars(reader.ReadContentAsBase64()));
                        }
                    }
                }
            }
            catch (Exception)
            {
                postJson = string.Empty;
            }            return "测试添加成功：" + postJson;
        }

asp.net客户端调用方法

private string PostTest()
    {
        WebRequest req = WebRequest.Create(new Uri("服务地址"));
        req.Method = "POST";
        byte[] bytes = System.Text.Encoding.UTF8.GetBytes("参数值");
        req.ContentType = "applicationson";
        req.ContentLength = bytes.Length;
        string str = string.Empty;
        using (Stream postStream = req.GetRequestStream())
        {
            postStream.Write(bytes, 0, bytes.Length);
        }
        using (WebResponse hwr = req.GetResponse())
        {
            using (StreamReader st = new StreamReader(hwr.GetResponseStream(), System.Text.Encoding.UTF8))
            {
                str = HttpUtility.UrlDecode(st.ReadToEnd());
            }
        }
        if (!string.IsNullOrEmpty(str))
            return str;
        else
            return null;
    }