C#利用WebService接口下载文件 

 1             WebTest.RtTfSimDataInterface test = new WebTest.RtTfSimDataInterface();
 2             //string strBasic = test.GetTfBasicDataInfo("admin", "123", "11", true);
 3             string strRealTime = test.GetTfRealTimeDataInfo("admin", "11", "11", true);
 4             //string strjson = HttpUtility.UrlDecode(HttpUtility.UrlEncode(str));
 5 
 6             WebTest.xsdDwgInfo dd = test.GetTfDwgBinaryInfo("admin", "admin", "1", 0);
 7 
 8             /////////////////////////////////////////////////////////////////////////////
 9             int nReadSize = dd.mnReadSize;//读取文件大小
10             sbyte[] mySByte = new sbyte[nReadSize];
11             mySByte = dd.mpBuffer;
12             bool bEof = dd.mbEof;
13             string strFileName = dd.mstrFileName;//文件名称
14             string strDwg_UpdateTime = dd.mstrDwgUpdateTime;//文件最后更新时间
15             //写数据
16 
17             byte[] arr = new byte[nReadSize];
18             Buffer.BlockCopy(mySByte, 0, arr, 0, nReadSize);//sbyte[]转byte[]
19 
20             if (!File.Exists("E:\\a.dwg"))
21             {
22                 FileStream FsCreate = new FileStream("E:\\a.dwg", FileMode.Create);
23                 FsCreate.Close();
24             }
25             FileStream fs = new FileStream("E:\\a.dwg", FileMode.Append, FileAccess.Write);
26             fs.Write(arr, 0, nReadSize);//写入byte[]
27             fs.Close();
28 
29             int nPosition = dd.mnReadSize;//读取文件位置
30 
31             while (!bEof)//文件未下载完成，继续下载
32             {
33                 dd = test.GetTfDwgBinaryInfo("admin", "admin", "1", nPosition);
34                 nPosition += dd.mnReadSize;
35                 bEof = dd.mbEof;
36                 nReadSize = dd.mnReadSize;
37                 sbyte[] sbyteTmp = new sbyte[nReadSize];
38                 sbyteTmp = dd.mpBuffer;
39 
40                 byte[] arrTmp = new byte[sbyteTmp.Length];
41                 Buffer.BlockCopy(sbyteTmp, 0, arrTmp, 0, sbyteTmp.Length);
42 
43                 if (!File.Exists("E:\\a.dwg"))
44                 {
45                     FileStream FsCreate = new FileStream("E:\\a.dwg", FileMode.Create);
46                     FsCreate.Close();
47                 } FileStream fsTmp = new FileStream("E:\\a.dwg", FileMode.Append, FileAccess.Write);
48                 fsTmp.Write(arrTmp, 0, nReadSize);
49                 fsTmp.Close();
50             }

 

posted on 2015-11-09 10:02  lpx15312  阅读(2834)  评论(0)    收藏  举报

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