Android File Upload uploadFile(File file, String RequestURL)

Description

upload File

Declaration

public static String uploadFile(File file, String RequestURL) 

Method Source Code

//package com.java2s;
import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.UUID;
import android.util.Log;

public class Main {
    private static final String TAG = "uploadFile";
    private static final int TIME_OUT = 10 * 10000000;
    private static final String CHARSET = "utf-8";
    public static final String SUCCESS = "1";
    public static final String FAILURE = "0";

    public static String uploadFile(File file, String RequestURL) {
        String BOUNDARY = UUID.randomUUID().toString(); 
        String PREFIX = "--", LINE_END = "\r\n";
        String CONTENT_TYPE = "multipart/form-data";

        try {//from   w w w .ja v  a2 s.co m
            URL url = new URL(RequestURL);
            HttpURLConnection conn = (HttpURLConnection) url
                    .openConnection();
            conn.setReadTimeout(TIME_OUT);
            conn.setConnectTimeout(TIME_OUT);
            conn.setDoInput(true); 
            conn.setDoOutput(true); 
            conn.setUseCaches(false); 
            conn.setRequestMethod("POST"); 
            conn.setRequestProperty("Charset", CHARSET);
            conn.setRequestProperty("connection", "keep-alive");
            conn.setRequestProperty("Content-Type", CONTENT_TYPE
                    + ";boundary=" + BOUNDARY);
            if (file != null) {
                /**
                 * ?????????????????
                 */
                OutputStream outputSteam = conn.getOutputStream();

                DataOutputStream dos = new DataOutputStream(outputSteam);
                StringBuffer sb = new StringBuffer();
                sb.append(PREFIX);
                sb.append(BOUNDARY);
                sb.append(LINE_END);

                sb.append("Content-Disposition: form-data; name=\"img\"; filename=\""
                        + file.getName() + "\"" + LINE_END);
                sb.append("Content-Type: application/octet-stream; charset="
                        + CHARSET + LINE_END);
                sb.append(LINE_END);
                dos.write(sb.toString().getBytes());
                InputStream is = new FileInputStream(file);
                byte[] bytes = new byte[1024];
                int len = 0;
                while ((len = is.read(bytes)) != -1) {
                    dos.write(bytes, 0, len);
                }
                is.close();
                dos.write(LINE_END.getBytes());
                byte[] end_data = (PREFIX + BOUNDARY + PREFIX + LINE_END)
                        .getBytes();
                dos.write(end_data);
                dos.flush();
                int res = conn.getResponseCode();
                String msg = dealResponseResult(conn.getInputStream());
                Log.e(TAG, msg);
                Log.e(TAG, "response code:" + res);
                if (res == 200) {
                    return SUCCESS;
                }
            }
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return FAILURE;
    }

    public static String dealResponseResult(InputStream in) {
        try {
            BufferedReader reader = new BufferedReader(
                    new InputStreamReader(in, CHARSET));
            StringBuilder sb = new StringBuilder();
            String msg = null;
            while ((msg = reader.readLine()) != null) {
                sb.append(msg);
            }
            return sb.toString();
        } catch (Exception e) {
            throw new RuntimeException(e);
        } finally {

            try {
                if (in != null) {
                    in.close();
                }

            } catch (IOException e) {
                throw new RuntimeException(e);
            }
        }
    }
}