将图像和文本从android发送到wcf服务的最佳方法 [英] Best method to send image and a text from android to wcf service
本文介绍了将图像和文本从android发送到wcf服务的最佳方法的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我需要将图像和文本从android发送到wcf服务，尝试使用带有multipart的http客户端，但没有运气，请提示。
I need to send an image and text from android to wcf service, tried with http client with multipart but no luck, kindly suggest.
推荐答案
使用multipartBuilder发送图片并通过http url连接分别发送文件作为json，下面的代码用于将图像发送到wcf服务是这个
Android代码
send image using multipartBuilder and send text separately as json via http url connection, the below code for sending image to wcf service is this Android code
public String postFiless( byte[] imgbyt, String urlString) throws Exception {
HttpClient client = new DefaultHttpClient();
HttpPost post = new HttpPost(urlString);
MultipartEntityBuilder builder = MultipartEntityBuilder.create();
builder.setMode(HttpMultipartMode.BROWSER_COMPATIBLE);
byte[] data = imgbyt;
String fileName = String.format("File_%d.jpg",new Date().getTime());
ByteArrayBody bab = new ByteArrayBody(data, fileName);
builder.addPart("image", bab);
final HttpEntity entity = builder.build();
post.setEntity(entity );
HttpResponse response = client.execute(post);
Log.e("result code", ""+response.getStatusLine().getStatusCode());
return getContent(response);
}
public static String getContent(HttpResponse response) throws IOException {
BufferedReader rd = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));
String body = "";
String content = "";
while ((body = rd.readLine()) != null)
{
content += body + "\n";
}
return content.trim();
}
WCF代码从ANDROID获取图像流
三步使用Multipart Parser从android上传图像到WCF Rest服务
WCF CODE TO GET THE IMAGE STREAM SENT FROM ANDROID Three steps to upload image using Multipart Parser from android to WCF Rest Service
//Step 1
//WCF Rest Interface
// Namespace
using System.IO;
[OperationContract]
[WebInvoke(Method = "POST", ResponseFormat = WebMessageFormat.Json, RequestFormat = WebMessageFormat.Json, UriTemplate = "/UploadImg")]
string UploadImg(Stream fileStream);
Step 2
// WCF Implementation class
// Name spaces
using System.IO;
public string UploadImg(Stream fileStream) {
string strRet = string.Empty;
string strFileName = AppDomain.CurrentDomain.BaseDirectory + "Log\\"; // System.Web.Hosting.HostingEnvironment.MapPath("~/Logs/");
string Path = HttpContext.Current.Server.MapPath("~/Photos");// System.Web.Hosting.HostingEnvironment.MapPath("~/Photos/");// HttpContext.Current.Server.MapPath("~/Photos/")
try {
MultipartParser parser = new MultipartParser(fileStream);
if (parser.Success) {
string fileName = parser.Filename;
string contentType = parser.ContentType;
byte[] fileContent = parser.FileContents;
Encoding encoding = Encoding.UTF8;
FileStream fileToupload = new FileStream(Path + "/" + fileName, FileMode.Create);
fileToupload.Write(fileContent, 0, fileContent.Length);
fileToupload.Close();
fileToupload.Dispose();
fileStream.Close();
strRet= fileName;
} else {
return "Image Not Uploaded";
} }
catch (Exception ex) {
// handle the error
}
return strRet;
}
Step 3
// MultipartParser class
//Namespace
using System.Collections.Generic;
using System.IO;
using System.Text;
using System.Text.RegularExpressions;
public class MultipartParser {
public IDictionary<string, string> Parameters = new Dictionary<string, string>();
public MultipartParser(Stream stream) {
this.Parse(stream, Encoding.UTF8);
}
public MultipartParser(Stream stream, Encoding encoding) {
this.Parse(stream, encoding);
}
public string getcontent(Stream stream, Encoding encoding) {
// Read the stream into a byte array
byte[] data = ToByteArray(stream);
// Copy to a string for header parsing
string content = encoding.GetString(data);
string delimiter = content.Substring(0, content.IndexOf("\r\n"));
string[] sections = content.Split(new string[] { delimiter }, StringSplitOptions.RemoveEmptyEntries);
foreach (string s in sections) {
Match nameMatch = new Regex(@"(?<=name\=\"")(.*?)(?=\"")").Match(s);
string name = nameMatch.Value.Trim().ToLower();
if (!string.IsNullOrWhiteSpace(name)) {
int startIndex = nameMatch.Index + nameMatch.Length + "\r\n\r\n".Length;
}
}
string strRet = ""; //Parameters["name"];
return strRet;
}
private void Parse(Stream stream, Encoding encoding) {
this.Success = false;
// Read the stream into a byte array
byte[] data = ToByteArray(stream);
// Copy to a string for header parsing
string content = encoding.GetString(data);
// The first line should contain the delimiter
int delimiterEndIndex = content.IndexOf("\r\n");
if (delimiterEndIndex > -1) {
string delimiter = content.Substring(0, content.IndexOf("\r\n"));
// Look for Content-Type
Regex re = new Regex(@"(?<=Content\-Type:)(.*?)(?=\r\n\r\n)");
Match contentTypeMatch = re.Match(content);
// Look for filename
re = new Regex(@"(?<=filename\=\"")(.*?)(?=\"")");
Match filenameMatch = re.Match(content);
//re = new Regex(@"(?<=name\=\"")(.*?)(?=\"")");
//Match nameMatch = re.Match(content);
// Did we find the required values?
if (contentTypeMatch.Success && filenameMatch.Success) {
// Set properties
this.ContentType = contentTypeMatch.Value.Trim();
this.Filename = filenameMatch.Value.Trim();
// Get the start & end indexes of the file contents
int startIndex = contentTypeMatch.Index + contentTypeMatch.Length + "\r\n\r\n".Length;
byte[] delimiterBytes = encoding.GetBytes("\r\n" + delimiter);
int endIndex = IndexOf(data, delimiterBytes, startIndex);
int contentLength = endIndex - startIndex;
// Extract the file contents from the byte array
byte[] fileData = new byte[contentLength];
Buffer.BlockCopy(data, startIndex, fileData, 0, contentLength);
this.FileContents = fileData;
this.Success = true; }
} }
private int IndexOf(byte[] searchWithin, byte[] serachFor, int startIndex) {
int index = 0;
int startPos = Array.IndexOf(searchWithin, serachFor[0], startIndex);
if (startPos != -1) {
while ((startPos + index) < searchWithin.Length) {
if (searchWithin[startPos + index] == serachFor[index]) {
index++;
if (index == serachFor.Length) {
return startPos;
}
} else {
startPos = Array.IndexOf<byte>(searchWithin, serachFor[0], startPos + index);
if (startPos == -1) {
return -1;
}
index = 0;
}
}
}
return -1;
}
private byte[] ToByteArray(Stream stream) {
byte[] buffer = new byte[32768];
using (MemoryStream ms = new MemoryStream()) {
while (true) {
int read = stream.Read(buffer, 0, buffer.Length);
if (read <= 0)
return ms.ToArray();
ms.Write(buffer, 0, read);
}
}
}
public bool Success {
get;
private set;
}
public string ContentType {
get;
private set;
}
public string Filename {
get;
private set;
}
public byte[] FileContents {
get;
private set;
}
public string Imgname {
get;
private set;
} }
// End of Wcf rest Service Code
这篇关于将图像和文本从android发送到wcf服务的最佳方法的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
查看全文
