get Response Body As Byte via URL - Android Network

Android examples for Network:HTTP Response

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Description

get Response Body As Byte via URL

Demo Code


//package com.java2s;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;

import java.net.HttpURLConnection;
import java.net.URL;

public class Main {

    public static byte[] getResponseBodyAsByte(String url) {
        byte[] value = null;
        value = getResponseBodyAsByte(null, null, url);
        return value;
    }// w  w w. j av a  2 s. c  om

    public static byte[] getResponseBodyAsByte(String cookie, String url) {
        byte[] value = null;
        value = getResponseBodyAsByte(null, cookie, url);
        return value;
    }

    public static byte[] getResponseBodyAsByte(String refence,
            String cookie, String url) {
        byte[] result = null;
        URL urlO = null;
        HttpURLConnection http = null;
        InputStream is = null;
        ByteArrayOutputStream out = null;
        try {
            urlO = new URL(url);
            http = (HttpURLConnection) urlO.openConnection();
            if (null != refence) {
                http.addRequestProperty("Referer", refence);
            }
            if (null != cookie) {
                http.addRequestProperty("Cookie", cookie);
            }
            http.addRequestProperty("Cache-Control", "no-cache");
            http.addRequestProperty("Connection", "keep-alive");
            http.setConnectTimeout(5 * 1000);
            http.setReadTimeout(10 * 1000);
            http.connect();
            int code = http.getResponseCode();
            if (code == HttpURLConnection.HTTP_OK) {
                int length = http.getContentLength();
                if (length > 0) {
                    System.out.println("???????:" + length);
                    out = new ByteArrayOutputStream();
                    is = http.getInputStream();
                    int ch;
                    byte[] buffer = new byte[2048];
                    while ((ch = is.read(buffer)) != -1) {
                        out.write(buffer, 0, ch);
                        out.flush();
                    }
                    result = out.toByteArray();
                }
            }
        } catch (Exception e) {
            System.err.println(e);
        } finally {
            if (null != http) {
                http.disconnect();
            }
            if (null != out) {
                try {
                    out.close();
                } catch (IOException e) {
                }
            }
        }
        return result;
    }
}

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