http传送图片（post请求方式）

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<br>package com.intsig.demo;   import java.io.ByteArrayOutputStream; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.net.HttpURLConnection; import java.net.MalformedURLException; import java.net.URL;   public class IdReognizeRestAPIDemo{       public static void main(String[] args) {         final String ImageSrcFile = "D:/java/1.JPG";//Recog image path         final String ResultFile = "D:/test.txt";//Result file path         IdRecognize(ImageSrcFile, ResultFile);     }     private static void IdRecognize(String imageSrc, String resultFile){         try {             String filepath = imageSrc;             System.out.println(filepath);             File file = new File(filepath);                           String urlString = "http://imgs-sandbox.intsig.net/icr/recognize_document?user=*****&password=******&languages=ru";             URL url = new URL(urlString);             HttpURLConnection con = (HttpURLConnection) url.openConnection();             con.setDoOutput(true);             con.setDoInput(true);             con.setRequestMethod("POST");             OutputStream out = con.getOutputStream();             FileInputStream inputStream = new FileInputStream(file);             byte[] data = new byte[2048];             int len = 0;             int sum = 0;             while ((len = inputStream.read(data))!= -1) {                 out.write(data, 0, len);                 sum = len + sum;             }             System.out.println("upload size="+sum);             out.flush();             inputStream.close();             out.close();                           int code = con.getResponseCode();             System.out.println("code="+code+ " url="+url);             if (code==200) {                 InputStream inputStream2 = con.getInputStream();                 ByteArrayOutputStream bos = new ByteArrayOutputStream();                 while ((len = inputStream2.read(data))!= -1) {                     bos.write(data, 0, len);                                    }                 inputStream2.close();                 String content = bos.toString();                 bos.close();                 System.out.println("result ="+content);                 FileOutputStream fos = new FileOutputStream(resultFile);                 fos.write(content.getBytes());                 fos.close();                 System.out.println("save result to "+resultFile);             }             con.disconnect();         } catch (MalformedURLException e) {             e.printStackTrace();         } catch (IOException e) {             e.printStackTrace();         }     } }