Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
import java.io.BufferedInputStream;

import java.io.File;

import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import android.annotation.SuppressLint;
import android.os.Environment;
import android.util.Log;

public class Main {
    @SuppressLint("NewApi")
    public static void getURL(String path) {
        String fileName = "";
        String dir = "/IndoorNavi/";
        File sdRoot = Environment.getExternalStorageDirectory();
        try {
            // Open the URLConnection for reading
            URL u = new URL(path);
            // URL u = new URL("http://www.baidu.com/");
            HttpURLConnection uc = (HttpURLConnection) u.openConnection();

            int code = uc.getResponseCode();
            String response = uc.getResponseMessage();
            //System.out.println("HTTP/1.x " + code + " " + response);
            for (int j = 1;; j++) {
                String key = uc.getHeaderFieldKey(j);
                String header = uc.getHeaderField(j);
                if (!(key == null)) {
                    if (key.equals("Content-Name"))
                        fileName = header;
                }
                if (header == null || key == null)
                    break;
                //System.out.println(uc.getHeaderFieldKey(j) + ": " + header);
            }
            Log.i("zhr", fileName);
            //System.out.println();

            try (InputStream in = new BufferedInputStream(uc.getInputStream())) {

                // chain the InputStream to a Reader
                Reader r = new InputStreamReader(in);
                int c;
                File mapFile = new File(sdRoot, dir + fileName);
                mapFile.createNewFile();
                FileOutputStream filecon = new FileOutputStream(mapFile);
                while ((c = r.read()) != -1) {
                    //System.out.print((char) c);
                    filecon.write(c);
                    filecon.flush();

                }
                filecon.close();
            }

        } catch (MalformedURLException ex) {
            System.err.println(path + " is not a parseable URL");
        } catch (IOException ex) {
            System.err.println(ex);
        }
    }
}