REST接口GET方法获取文件保存到本地(C#)

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原创最新推荐文章于 2026-03-18 01:46:14 发布 2.3k 阅读 AI 写同款· GEO 优化 ›

(全网首发)C#通过Rest接口访问WinCC(1) 从WinCC V7.5 SP2开始，SIEMENS为WinCC增加了Rest接口，任何一款支持RESTful API规范的软件都可以通过该接口从WinCC读写数据。为WinCC配置Rest 配置方法可以参见WinCC帮助，里面介绍的比较详细。但是有一点需要注意，就是证书的选择，参见下图所示。图1 选择证书完成了Rest设置后，为WinCC添加若干变量。这里我们添加了PAR1-PAR100等一些内部测试变量。图2 创建变量 C#应用程序创建一个WinForm应用程序，目.. 阅读详情

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net;
using System.IO;

namespace testConsoleApplication1
{
    class Class1
    {
        static void Main(string[] args)
        {
            string urlstr = @"http://127.0.0.1/open/files/***files";
            //string urlstr = @"http://127.0.0.1/open/files/***files/1.pdf";
            //"http://creditcard.bankcomm.com/jhbc/download/discount/baiwan_c3.pdf";
            //"http://127.0.0.1/open/files/***files/1.pdf";
            //FileStream fs = new FileStream(@"d:\***1.pdf", FileMode.Create, FileAccess.Write);
            FileStream fs = new FileStream(@"d:\filesList.xml", FileMode.Create, FileAccess.Write);
            Uri url = new Uri(urlstr);
            HttpWebRequest myHttpWebRequest = (HttpWebRequest)WebRequest.Create(url);
            myHttpWebRequest.Accept = "application/xml";
            myHttpWebRequest.Headers.Add("X-***-Token-Id","***");            
            myHttpWebRequest.Method = "GET";
            HttpWebResponse myHttpWebResponse = (HttpWebResponse)myHttpWebRequest.GetResponse();
            Console.WriteLine(myHttpWebResponse.StatusCode.ToString());

            Stream receiveStream = myHttpWebResponse.GetResponseStream();
            Byte[] bytes = new Byte[100];
            int count = receiveStream.Read(bytes, 0, 100);
            while (count != 0)
            {
                fs.Write(bytes, 0, count);
                count = receiveStream.Read(bytes, 0, 100);
            }
            fs.Close();
            receiveStream.Close();
            myHttpWebResponse.Close();


        }
    }
}

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