UploadClient.java

package com.jqmobile.core.server.servlet.load;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;

import com.jqmobile.core.server.Application;

public class UploadClient {
	public static void main(String[] args) throws Exception {
		UploadClient uc = UploadClient.openUpload("d:/upload");
		String name = "老猫-哥已经爱上你啦";
		up(uc, name);
		down(uc, name);
		name = "Sara-我的心好冷(MTV)-国语-853523";
		up(uc, name);
		down(uc, name);
	}
	private static void down(UploadClient uc, String name) throws Exception {
		InputStream i = uc.download(name+".mpg");
//		i.available();
		File f = new File("d:/upload/"+name+"——"+System.currentTimeMillis()+".mpg");
		FileOutputStream o = new FileOutputStream(f);
		byte[] bs = new byte[i.available()];
		int r = i.read(bs);
		o.write(bs);
		while(-1 != r){
			r = i.read();
			o.write(r);
		}
		o.flush();
		o.close();
	}
	static void up(UploadClient uc, String name) throws FileNotFoundException {
		String s = name+".mpg";
		FileInputStream in = new FileInputStream(new File("d:/" + s));
		uc.upload(s, in);
	}
	//
	//private final static UploadClient defaultUpload = openUpload("G:\\myeclse\\workspace\\.metadata\\.plugins\\org.eclipse.wst.server.core\\tmp0\\wtpwebapps\\patrol\\themes");
	private final static UploadClient defaultUpload = openUpload("/home/zjxft/patrol/themes/clientUpload");
	public static UploadClient openUpload(){
		return defaultUpload;
	}
	public static UploadClient openUpload(String uri){
		return new UploadClient(uri);
	}
	private final String url;
	private UploadClient(String url){
		this.url = url;
	}
	public boolean upload(String filename, InputStream in){
		LoadListen listen = Application.getLoadListen();
		if(null != listen){
			try {
				if(listen.upload(filename, in))
					return true;
			} catch (Throwable e) {
//				e.printStackTrace();
				return false;
			}
		}
		File file = getFile();
		File f = new File(file, filename);
		if(!f.exists()){
			try {
				f.createNewFile();
				FileOutputStream fw = new FileOutputStream(f);
//				byte[] bs = new byte[1024];
				byte[] bs = new byte[in.available()];
				if(in.read(bs) != -1){
					fw.write(bs);
				}
				int b;
				while ((b=in.read())!=-1) {
					fw.write(b);
				}
				fw.flush();
				fw.close();
				return true;
			} catch (IOException e) {
				System.out.println("file url:================"+f.getPath());
				e.printStackTrace();
				return false;
			}
		}
		return false;
	}
	private File directory;
	private File getFile() {
		if(null == directory){
			if(null == url){
				URL r = Thread.currentThread().getContextClassLoader().getResource("");
				try {
					r = new URL(r, "load");
					File f = new File(r.toURI());
					if(!f.exists()){
						f.mkdirs();
					}
					directory = f;
				} catch (Exception e) {
					e.printStackTrace();
				}
			}else{
				File f = new File(url);
				if(!f.exists()){
					f.mkdirs();
				}
				directory = f;
			}
		}
		return directory;
	}
	public InputStream download(String filename){
		LoadListen listen = Application.getLoadListen();
		if(null != listen){
			try {
				InputStream download = listen.download(filename);
				if(null != download){
					return download;
				}
			} catch (Throwable e) {
				e.printStackTrace();
			}
		}
		File file = getFile();
		File f = new File(file, filename);
		if(f.exists()){
			try {
				return new FileInputStream(f);
			} catch (FileNotFoundException e) {
				e.printStackTrace();
			}
		}
		return null;
	}
}