参考原文：

Take a Photo from Android Camera and Upload it to a Remote PHP Server

使用Java上传文件

从Apache Software Foundation下载HttpClient 4.3.4。

在工程中添加下面的jar包：

参考sample，写一个简单的上传：

publicstaticvoidmain(String[]args)throwsException{//TODOAuto-generatedmethodstubCloseableHttpClienthttpclient=HttpClients.createDefault();try{HttpPosthttppost=newHttpPost("http://localhost:8003/savetofile.php");//yourserverFileBodybin=newFileBody(newFile("my.jpg"));//imageforuploadingHttpEntityreqEntity=MultipartEntityBuilder.create().addPart("myFile",bin).build();httppost.setEntity(reqEntity);System.out.println("executingrequest"+httppost.getRequestLine());CloseableHttpResponseresponse=httpclient.execute(httppost);try{System.out.println("----------------------------------------");System.out.println(response.getStatusLine());HttpEntityresEntity=response.getEntity();if(resEntity!=null){System.out.println("Responsecontentlength:"+resEntity.getContentLength());}EntityUtils.consume(resEntity);}finally{response.close();}}finally{httpclient.close();}}

Android上拍照

Camera的使用很简单，只需要参考开发者网站的这篇Taking Photos Simply。

调用系统camera只需要如下代码：

Intentintent=newIntent("android.media.action.IMAGE_CAPTURE");startActivityForResult(intent,0);

拍照之后，camera会返回缩略图：

protectedvoidonActivityResult(intrequestCode,intresultCode,Intentdata){if(requestCode==0&&resultCode==RESULT_OK){Bundleextras=data.getExtras();BitmapimageBitmap=(Bitmap)extras.get("data");mImageView.setImageBitmap(imageBitmap);}}

如果要获得高质量的图，就需要指定照片的保存路径。在AndroidManifest.xml中添加下面的权限：

<uses-permissionandroid:name="android.permission.READ_EXTERNAL_STORAGE"/><uses-permissionandroid:name="android.permission.WRITE_EXTERNAL_STORAGE"/>

修改调用方法：

Intentintent=newIntent("android.media.action.IMAGE_CAPTURE");Intent.putExtra(MediaStore.EXTRA_OUTPUT,Uri.fromFile(photoFile));startActivityForResult(intent,0);

拍照之后，使用预设的图片路径解码，就可以获取高质量的图：

protectedvoidonActivityResult(intrequestCode,intresultCode,Intentdata){if(requestCode==0&&resultCode==Activity.RESULT_OK){setPic();}}privatevoidsetPic(){//GetthedimensionsoftheViewinttargetW=mImageView.getWidth();inttargetH=mImageView.getHeight();//GetthedimensionsofthebitmapBitmapFactory.OptionsbmOptions=newBitmapFactory.Options();bmOptions.inJustDecodeBounds=true;BitmapFactory.decodeFile(mCurrentPhotoPath,bmOptions);intphotoW=bmOptions.outWidth;intphotoH=bmOptions.outHeight;//DeterminehowmuchtoscaledowntheimageintscaleFactor=Math.min(photoW/targetW,photoH/targetH);//DecodetheimagefileintoaBitmapsizedtofilltheViewbmOptions.inJustDecodeBounds=false;bmOptions.inSampleSize=scaleFactor;bmOptions.inPurgeable=true;Bitmapbitmap=BitmapFactory.decodeFile(mCurrentPhotoPath,bmOptions);mImageView.setImageBitmap(bitmap);}

从Android客户端传送图片到PHP服务器

要访问Internet，在AndroidManifest.xml中添加访问权限：

<uses-permissionandroid:name="android.permission.INTERNET"/>

参考http://blog.rafaelsanches.com/2011/01/29/upload-using-multipart-post-using-httpclient-in-android/，创建一个类MultipartEntity：

publicclassMultipartEntityimplementsHttpEntity{privateStringboundary=null;ByteArrayOutputStreamout=newByteArrayOutputStream();booleanisSetLast=false;booleanisSetFirst=false;publicMultipartEntity(){this.boundary=System.currentTimeMillis()+"";}publicvoidwriteFirstBoundaryIfNeeds(){if(!isSetFirst){try{out.write(("--"+boundary+"\r\n").getBytes());}catch(finalIOExceptione){}}isSetFirst=true;}publicvoidwriteLastBoundaryIfNeeds(){if(isSetLast){return;}try{out.write(("\r\n--"+boundary+"--\r\n").getBytes());}catch(finalIOExceptione){}isSetLast=true;}publicvoidaddPart(finalStringkey,finalStringvalue){writeFirstBoundaryIfNeeds();try{out.write(("Content-Disposition:form-data;name=\""+key+"\"\r\n").getBytes());out.write("Content-Type:text/plain;charset=UTF-8\r\n".getBytes());out.write("Content-Transfer-Encoding:8bit\r\n\r\n".getBytes());out.write(value.getBytes());out.write(("\r\n--"+boundary+"\r\n").getBytes());}catch(finalIOExceptione){}}publicvoidaddPart(finalStringkey,finalStringfileName,finalInputStreamfin){addPart(key,fileName,fin,"application/octet-stream");}publicvoidaddPart(finalStringkey,finalStringfileName,finalInputStreamfin,Stringtype){writeFirstBoundaryIfNeeds();try{type="Content-Type:"+type+"\r\n";out.write(("Content-Disposition:form-data;name=\""+key+"\";filename=\""+fileName+"\"\r\n").getBytes());out.write(type.getBytes());out.write("Content-Transfer-Encoding:binary\r\n\r\n".getBytes());finalbyte[]tmp=newbyte[4096];intl=0;while((l=fin.read(tmp))!=-1){out.write(tmp,0,l);}out.flush();}catch(finalIOExceptione){}finally{try{fin.close();}catch(finalIOExceptione){}}}publicvoidaddPart(finalStringkey,finalFilevalue){try{addPart(key,value.getName(),newFileInputStream(value));}catch(finalFileNotFoundExceptione){}}@OverridepubliclonggetContentLength(){writeLastBoundaryIfNeeds();returnout.toByteArray().length;}@OverridepublicHeadergetContentType(){returnnewBasicHeader("Content-Type","multipart/form-data;boundary="+boundary);}@OverridepublicbooleanisChunked(){returnfalse;}@OverridepublicbooleanisRepeatable(){returnfalse;}@OverridepublicbooleanisStreaming(){returnfalse;}@OverridepublicvoidwriteTo(finalOutputStreamoutstream)throwsIOException{outstream.write(out.toByteArray());}@OverridepublicHeadergetContentEncoding(){returnnull;}@OverridepublicvoidconsumeContent()throwsIOException,UnsupportedOperationException{if(isStreaming()){thrownewUnsupportedOperationException("Streamingentitydoesnotimplement#consumeContent()");}}@OverridepublicInputStreamgetContent()throwsIOException,UnsupportedOperationException{returnnewByteArrayInputStream(out.toByteArray());}}

使用AsyncTask来完成上传：

privateclassUploadTaskextendsAsyncTask<Bitmap,Void,Void>{protectedVoiddoInBackground(Bitmap...bitmaps){if(bitmaps[0]==null)returnnull;Bitmapbitmap=bitmaps[0];ByteArrayOutputStreamstream=newByteArrayOutputStream();bitmap.compress(Bitmap.CompressFormat.PNG,100,stream);//convertBitmaptoByteArrayOutputStreamInputStreamin=newByteArrayInputStream(stream.toByteArray());//convertByteArrayOutputStreamtoByteArrayInputStreamDefaultHttpClienthttpclient=newDefaultHttpClient();try{HttpPosthttppost=newHttpPost("http://192.168.8.84:8003/savetofile.php");//serverMultipartEntityreqEntity=newMultipartEntity();reqEntity.addPart("myFile",System.currentTimeMillis()+".jpg",in);httppost.setEntity(reqEntity);Log.i(TAG,"request"+httppost.getRequestLine());HttpResponseresponse=null;try{response=httpclient.execute(httppost);}catch(ClientProtocolExceptione){//TODOAuto-generatedcatchblocke.printStackTrace();}catch(IOExceptione){//TODOAuto-generatedcatchblocke.printStackTrace();}try{if(response!=null)Log.i(TAG,"response"+response.getStatusLine().toString());}finally{}}finally{}if(in!=null){try{in.close();}catch(IOExceptione){//TODOAuto-generatedcatchblocke.printStackTrace();}}if(stream!=null){try{stream.close();}catch(IOExceptione){//TODOAuto-generatedcatchblocke.printStackTrace();}}returnnull;}@OverrideprotectedvoidonPostExecute(Voidresult){//TODOAuto-generatedmethodstubsuper.onPostExecute(result);Toast.makeText(MainActivity.this,R.string.uploaded,Toast.LENGTH_LONG).show();}}

代码

https://github.com/DynamsoftRD/JavaHTTPUpload

Gitclonehttps://github.com/DynamsoftRD/JavaHTTPUpload.git

Android上使用camera拍照，把获取的照片上传到远程服务器

Take a Photo from Android Camera and Upload it to a Remote PHP Server

使用Java上传文件

Android上拍照

从Android客户端传送图片到PHP服务器

代码

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