- package com.easyway.fileupload;
- import java.io.DataOutputStream;
- import java.io.File;
- import java.io.FileInputStream;
- import java.io.IOException;
- import java.io.InputStream;
- import java.io.OutputStream;
- import java.net.HttpURLConnection;
- import java.net.MalformedURLException;
- import java.net.URL;
- import java.util.UUID;
- import android.util.Log;
- /** * * 实现文件上传的工具类
- * @Title:
- * @Description: 实现TODO
- * @Copyright:Copyright (c) 2011
- * @Company:易程科技股份有限公司
- * @Date:2012-7-2
- * @author longgangbai
- * @version 1.0
- */
- public class FileImageUpload {
- private static final String TAG = "uploadFile";
- private static final int TIME_OUT = 10*10000000; //超时时间
- private static final String CHARSET = "utf-8"; //设置编码
- public static final String SUCCESS="1"; public static final String FAILURE="0";
- /** * android上传文件到服务器
- * @param file 需要上传的文件
- * @param RequestURL 请求的rul
- * @return 返回响应的内容
- */
- public static String uploadFile(File file,String RequestURL) {
- String BOUNDARY = UUID.randomUUID().toString(); //边界标识 随机生成 String PREFIX = "--" , LINE_END = "\r\n";
- String CONTENT_TYPE = "multipart/form-data"; //内容类型
- try {
- URL url = new URL(RequestURL);
- HttpURLConnection conn = (HttpURLConnection) url.openConnection(); conn.setReadTimeout(TIME_OUT); conn.setConnectTimeout(TIME_OUT); c
- onn.setDoInput(true); //允许输入流
- conn.setDoOutput(true); //允许输出流
- conn.setUseCaches(false); //不允许使用缓存
- conn.setRequestMethod("POST"); //请求方式
- conn.setRequestProperty("Charset", CHARSET);
- //设置编码
- conn.setRequestProperty("connection", "keep-alive");
- conn.setRequestProperty("Content-Type", CONTENT_TYPE + ";boundary=" + BOUNDARY);
- if(file!=null) {
- /** * 当文件不为空,把文件包装并且上传 */
- OutputStream outputSteam=conn.getOutputStream();
- DataOutputStream dos = new DataOutputStream(outputSteam);
- StringBuffer sb = new StringBuffer();
- sb.append(PREFIX);
- sb.append(BOUNDARY); sb.append(LINE_END);
- /**
- * 这里重点注意:
- * name里面的值为服务器端需要key 只有这个key 才可以得到对应的文件
- * filename是文件的名字,包含后缀名的 比如:abc.png
- */
- 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();
- /**
- * 获取响应码 200=成功
- * 当响应成功,获取响应的流
- */
- int res = conn.getResponseCode();
- Log.e(TAG, "response code:"+res);
- if(res==200)
- {
- return SUCCESS;
- }
- }
- } catch (MalformedURLException e)
- { e.printStackTrace(); }
- catch (IOException e)
- { e.printStackTrace(); }
- return FAILURE;
- }
- }