发送图像文件从Android的WCF到REST服务 [英] Sending Image Files from Android to WCF REST Service
本文介绍了发送图像文件从Android的WCF到REST服务的处理方法，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
我已经提到很多的解决方案，但没有运气的。
我想从Android发送图片文件，使用WCF REST服务服务器。但我能够发送图片文件，其他的只有10KB然后，我无法发送。
早期我试着发送Base64编码字符串，但我不能用这个方法来发送。换了好几配置WCF中的配置文件，但仍然有问题，以接收大型文件。
下面是我的Android code在那里我有异步执行
的 Android客户端code。使用WCF REST服务发送图片文件到服务器的
公共无效myGoal（）
{ 位图位图= BitmapFactory.de codeResource（getResources（），R.drawable.courserequest）;
ByteArrayOutputStream BOS =新ByteArrayOutputStream（）;
bitmap.com preSS（比较pressFormat.JPEG，50，BOS）;
字节[]数据= bos.toByteArray（）;
StringBuilder的S;
//使HTTP请求
尝试{
// defaultHttpClient
DefaultHttpClient的HttpClient =新DefaultHttpClient（）; 最后弦乐URL1 =HTTP：//本地主机：8889 /照片服务/ WcfAndroidImageService.svc / GetStream
HttpPost httpPost =新HttpPost（URL1）; ContentBody斌= NULL; httpPost.setEntity（新ByteArrayEntity（数据））; HTT presponse响应= httpClient.execute（httpPost）;
读者的BufferedReader =新的BufferedReader（新的InputStreamReader（
。response.getEntity（）的getContent（），UTF-8））;
串sResponse;
S =新的StringBuilder（）; 而（（sResponse = reader.readLine（））！= NULL）{
S = s.append（sResponse）;
}
的System.out.println（回应：+ S）;
}赶上（例外五）{
Log.e（e.getClass（）的getName（），e.getMessage（））;
}}
的 Web.config文件中的WCF REST服务来添加配置功能的
＆LT;？XML版本=1.0＆GT？;
＆LT;结构＆gt; ＆LT;＆的System.Web GT;
＆LT;编译调试=真targetFramework =4.0/＆GT;
＆LT;的httpRuntime的maxRequestLength =2097151useFullyQualifiedRedirectUrl =真
executionTimeout =14400/＆GT;
＆LT; /system.web>
＆LT; system.serviceModel＆GT;
＆LT;服务和GT;
＆LT;服务名称=WcfAndroidPhotoServis.WcfAndroidImageServicebehaviorConfiguration =BehConfig＆GT;
＆LT;端点地址=
绑定=的WebHttpBinding
behaviorConfiguration =网
合同=WcfAndroidPhotoServis.IWcfAndroidImageService/＆GT;
＆LT;主机＆GT;
＆LT; baseAddresses＆GT;
＆LT;添加baseAddress =HTTP：//本地主机：8889 /照片服务/ WcfAndroidImageService.svc/＆GT;
＆LT; / baseAddresses＆GT;
＆LT; /主机＆GT;
＆LT; /服务＆GT;
＆LT; /服务＆GT;
＆LT;＆绑定GT;
＆LT;＆的WebHttpBinding GT;
＆LT;绑定名称=WebBinding
bypassProxyOnLocal =真
useDefaultWebProxy =假
hostNameComparisonMode =WeakWildcard
的SendTimeout =十点15分00秒
openTimeout =十点15分00秒
receiveTimeout =10时15分00秒
maxReceivedMessageSize =2147483647 MAXBUFFERSIZE =2147483647
maxBufferPoolSize =2147483647
transferMode =流 ＆GT; ＆所述; readerQuotas MAXDEPTH =128
maxStringContentLength =2147483647maxArrayLength =2147483647
maxBytesPerRead =2147483647maxNameTableCharCount =2147483647/＆GT; ＆LT; /＆结合GT;
＆LT; /＆的WebHttpBinding GT;
＆LT; /绑定＆GT;
＆LT;＆行为GT;
＆LT; serviceBehaviors＆GT;
＆LT;行为NAME =BehConfig＆GT;
＆LT;！ - 为了避免泄露的元数据信息，下面设置为false值部署之前 - ＆GT;
＆LT; serviceMetadata httpGetEnabled =真/＆GT;
＆LT;！ - 要接收故障中的异常细节进行调试，下面设置为true值。设置为false部署之前，以避免泄露异常信息 - ＆GT;
＆LT; serviceDebug includeExceptionDetailInFaults =真/＆GT;
＆LT; /行为＆GT;
＆LT; / serviceBehaviors＆GT;
＆LT; endpointBehaviors＆GT;
＆LT;行为NAME =网络＆GT;
＆LT; webHttp automaticFormatSelectionEnabled =真helpEnabled =真defaultOutgoingResponseFormat =JSON的/＆GT;
＆LT; DataContractSerializer的maxItemsInObjectGraph =2147483647/＆GT;
＆LT; /行为＆GT;
＆LT; / endpointBehaviors＆GT;
＆LT; /行为＆GT;
＆LT; serviceHostingEnvironment multipleSiteBindingsEnabled =真/＆GT;
＆LT; /system.serviceModel>
＆LT; system.webServer＆GT;
＆LT;模块runAllManagedModulesForAllRequests =真/＆GT;
＆LT;！ -
为了调试过程中浏览Web应用程序根目录，下面设置为true值。
设置为false部署之前，以避免泄露Web应用程序文件夹的信息。
- ＆GT;
＆LT; directoryBrowse启用=真/＆GT;
＆LT; /system.webServer>＆LT; /结构＆gt;
的在WCF图像服务接口方法的
IWcfAndroidImageService.cs [OperationContract的]
[WebInvoke（方法=POST
RequestFormat = WebMessageFormat.Json，
ResponseFormat = WebMessageFormat.Json，
// BodyStyle = WebMessageBodyStyle.Bare，
UriTemplate =GetStream）]
无效GetStream（流为imageData）;
的图像服务方法接收字节流数据从客户端如Android（WcfAndroidImageService.svc.cs）的
公共无效GetStream（流为imageData）
{
尝试
{
字节[]缓冲区=新的字节[10000]
imageData.Read（缓冲液，0，10000）;
的FileStream F =新的FileStream（D：\\\\ \\\\的FileUpload SubjectFront.JPG，FileMode.OpenOrCreate）;
f.Write（缓冲液，0，buffer.Length）;
f.Close（）;
imageData.Close（）;
}
赶上（异常前）
{
}
}
解决方案
imageData.Read（缓冲，0，10000）;
f.Write（缓冲液，0，buffer.Length）;
您正在做的只有一次。所以，你只能得到10000字节。其余部分被丢失。
请您在这里继续读，直到流的末尾循环。
内部NREAD = imageData.Read（缓冲，0，10000）;
f.Write（缓冲液，0，NREAD）;
I have referred lot of solutions but no luck.
I am trying to send Image file from Android to Server using WCF REST Service. But I am able to send only 10KB of image files, other then that I am unable to send.
Early I tried sending Base64 String but I am unable to send using this method. Changed several configurations in WCF config file but still having issues to receive large files.
Below is my Android Code where I have executed asynchronously
Android Client Code to Send Image Files using WCF REST Service to Server
public void myGoal()
{
Bitmap bitmap = BitmapFactory.decodeResource(getResources(), R.drawable.courserequest);
ByteArrayOutputStream bos = new ByteArrayOutputStream();
bitmap.compress(CompressFormat.JPEG, 50, bos);
byte[] data = bos.toByteArray();
StringBuilder s;
// Making HTTP request
try {
// defaultHttpClient
DefaultHttpClient httpClient = new DefaultHttpClient();
final String URL1 = "http://localhost:8889/PhotoService/WcfAndroidImageService.svc/GetStream";
HttpPost httpPost = new HttpPost(URL1);
ContentBody bin = null;
httpPost.setEntity(new ByteArrayEntity(data));
HttpResponse response = httpClient.execute(httpPost);
BufferedReader reader = new BufferedReader(new InputStreamReader(
response.getEntity().getContent(), "UTF-8"));
String sResponse;
s = new StringBuilder();
while ((sResponse = reader.readLine()) != null) {
s = s.append(sResponse);
}
System.out.println("Response: " + s);
} catch (Exception e) {
Log.e(e.getClass().getName(), e.getMessage());
}
}
Web.Config File in WCF REST Service to add configuration features
<?xml version="1.0"?>
<configuration>
<system.web>
<compilation debug="true" targetFramework="4.0" />
<httpRuntime maxRequestLength="2097151" useFullyQualifiedRedirectUrl="true"
executionTimeout="14400" />
</system.web>
<system.serviceModel>
<services>
<service name="WcfAndroidPhotoServis.WcfAndroidImageService" behaviorConfiguration="BehConfig">
<endpoint address=""
binding="webHttpBinding"
behaviorConfiguration="web"
contract="WcfAndroidPhotoServis.IWcfAndroidImageService"/>
<host>
<baseAddresses>
<add baseAddress="http://localhost:8889/PhotoService/WcfAndroidImageService.svc"/>
</baseAddresses>
</host>
</service>
</services>
<bindings>
<webHttpBinding>
<binding name="WebBinding"
bypassProxyOnLocal="true"
useDefaultWebProxy="false"
hostNameComparisonMode="WeakWildcard"
sendTimeout="10:15:00"
openTimeout="10:15:00"
receiveTimeout="10:15:00"
maxReceivedMessageSize="2147483647"
maxBufferSize="2147483647"
maxBufferPoolSize="2147483647"
transferMode="Streamed"
>
<readerQuotas maxDepth="128"
maxStringContentLength="2147483647" maxArrayLength="2147483647"
maxBytesPerRead="2147483647" maxNameTableCharCount="2147483647" />
</binding>
</webHttpBinding>
</bindings>
<behaviors>
<serviceBehaviors>
<behavior name="BehConfig" >
<!-- To avoid disclosing metadata information, set the value below to false before deployment -->
<serviceMetadata httpGetEnabled="true"/>
<!-- To receive exception details in faults for debugging purposes, set the value below to true. Set to false before deployment to avoid disclosing exception information -->
<serviceDebug includeExceptionDetailInFaults="true"/>
</behavior>
</serviceBehaviors>
<endpointBehaviors>
<behavior name="web">
<webHttp automaticFormatSelectionEnabled="true" helpEnabled="true" defaultOutgoingResponseFormat="Json" />
<dataContractSerializer maxItemsInObjectGraph="2147483647" />
</behavior>
</endpointBehaviors>
</behaviors>
<serviceHostingEnvironment multipleSiteBindingsEnabled="true" />
</system.serviceModel>
<system.webServer>
<modules runAllManagedModulesForAllRequests="true"/>
<!--
To browse web app root directory during debugging, set the value below to true.
Set to false before deployment to avoid disclosing web app folder information.
-->
<directoryBrowse enabled="true"/>
</system.webServer>
</configuration>
Image Service Interface Method in WCF
IWcfAndroidImageService.cs
[OperationContract]
[WebInvoke(Method = "POST",
RequestFormat = WebMessageFormat.Json,
ResponseFormat = WebMessageFormat.Json,
//BodyStyle = WebMessageBodyStyle.Bare,
UriTemplate = "GetStream")]
void GetStream(Stream imageData);
Image Service Method to Receive Byte Stream Data From Clients like Android (WcfAndroidImageService.svc.cs)
public void GetStream(Stream imageData)
{
try
{
byte[] buffer = new byte[10000];
imageData.Read(buffer, 0, 10000);
FileStream f = new FileStream("D:\\FileUpload\\SubjectFront.JPG", FileMode.OpenOrCreate);
f.Write(buffer, 0, buffer.Length);
f.Close();
imageData.Close();
}
catch (Exception ex)
{
}
}
解决方案
imageData.Read(buffer, 0, 10000);
f.Write(buffer, 0, buffer.Length);
You are doing that only once. So you only get 10000 bytes. The rest is lost.
Make a loop where you keep reading until the end of stream.
Int nread = imageData.Read(buffer, 0, 10000);
f.Write(buffer, 0, nread);
这篇关于发送图像文件从Android的WCF到REST服务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！
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