android同时上传文件和键值对

文件存在的…但是服务器那边接受不到。好像这个方法服务器那边要额外用一个jar包是么？还是正常接收就行。
文件存在的…但是服务器那边接受不到。好像这个方法服务器那边要额外用一个jar包是么？还是正常接收就行。
我的测试服务器程序不是用java实现的。这些数据都是通过http协议传送的，和服务端用什么语言实现没有关系。
服务端只要通过流的方式读取每个part就可以，name虽然不是文件，但也是通过流的方式发送给服务端的。
建议楼主是用afinal框架，他的post可以提交文件和表单数据。
这个是我改进的一个文件、表格数据提交post：package com.minephone.network;import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.Map;
import android.os.AsyncTask;
import android.util.Log;/**
* 文件上传
*
*
HashMap<String, String> params = new HashMap<String, String>();
params.put("page", "1");
params.put("name", "2"); HashMap<String, File> files = new HashMap<String, File>();
files.put("1.apk","/mnt/sdcard/1.apk"));
files.put("name", new File(Environment.getExternalStorageDirectory().getAbsolutePath(),"6.jpg"));

new fileupload("http://192.168.191.1:8081/uploadtest/servlet/upload2",params, files,MainActivity.this).execute("");

* @author ping
*
*/
public class FileUpload extends AsyncTask {
public  static final String TAG = "FileUpload";
String actionUrl;
Map<String, String> params;
Map<String, File> files;
UploadListener listener;

public interface UploadListener {
public void onUploadEnd(boolean success,String object);
}

public FileUpload(String actionUrl, Map<String, String> params,Map<String, File> files,UploadListener listener) {
Log.i(TAG,"upload!");
this.actionUrl = actionUrl;
this.params = params;
this.files = files;
this.listener = listener;
}

@Override
protected String doInBackground(Object... arg0) {
String reslut = null;
try {
String BOUNDARY = java.util.UUID.randomUUID().toString();
     String PREFIX = "--", LINEND = "\r\n";
     String MULTIPART_FROM_DATA = "multipart/form-data";
     String CHARSET = "UTF-8";
     URL uri = new URL(actionUrl);
     HttpURLConnection conn = (HttpURLConnection) uri.openConnection();
     conn.setReadTimeout(5 * 1000);
     conn.setDoInput(true);// 允许输入
     conn.setDoOutput(true);// 允许输出
     conn.setUseCaches(false);
     conn.setRequestMethod("POST"); // Post方式
     conn.setRequestProperty("connection", "keep-alive");
     conn.setRequestProperty("Charsert", "UTF-8");
     conn.setRequestProperty("Content-Type", MULTIPART_FROM_DATA  + ";boundary=" + BOUNDARY);
     // 首先组拼文本类型的参数
     StringBuilder sb = new StringBuilder();
     for (Map.Entry<String, String> entry : params.entrySet()) {
         sb.append(PREFIX);
         sb.append(BOUNDARY);
         sb.append(LINEND);
         sb.append("Content-Disposition: form-data; name=\"" + entry.getKey() + "\"" + LINEND);
         sb.append("Content-Type: text/plain; charset=" + CHARSET + LINEND);
         sb.append("Content-Transfer-Encoding: 8bit" + LINEND);
         sb.append(LINEND);
         sb.append(entry.getValue());
         sb.append(LINEND);
     }
     DataOutputStream outStream = new DataOutputStream(conn.getOutputStream());
     outStream.write(sb.toString().getBytes());

     // 发送文件数据
     if (files != null)
//          for (Map.Entry<String, File> file : files.entrySet()) {
     for (String key : files.keySet()) {
             StringBuilder sb1 = new StringBuilder();
             sb1.append(PREFIX);
             sb1.append(BOUNDARY);
             sb1.append(LINEND);
             sb1.append("Content-Disposition: form-data; name=\"file\"; filename=\""   + key + "\"" + LINEND);
             sb1.append("Content-Type: multipart/form-data; charset="  + CHARSET + LINEND);
             sb1.append(LINEND);
             outStream.write(sb1.toString().getBytes());
             File valuefile = files.get(key);
             InputStream is = new FileInputStream(valuefile);
             byte[] buffer = new byte[1024];
             int len = 0;
             while ((len = is.read(buffer)) != -1) {
                 outStream.write(buffer, 0, len);
             }
             is.close();
             outStream.write(LINEND.getBytes());
         }
     // 请求结束标志
     byte[] end_data = (PREFIX + BOUNDARY + PREFIX + LINEND).getBytes();
     outStream.write(end_data);
     outStream.flush();
     // 得到响应码
//      success = conn.getResponseCode()==200;
           InputStream in = conn.getInputStream();
     InputStreamReader isReader = new InputStreamReader(in);
     BufferedReader bufReader = new BufferedReader(isReader);
     String line = null;
     reslut = "";
     while ((line = bufReader.readLine()) != null)
     reslut += line;
     outStream.close();
     conn.disconnect();
} catch (Exception e) {
e.printStackTrace();
}
return reslut;
}

@Override
protected void onPreExecute() {
//onPreExecute方法用于在执行后台任务前做一些UI操作
Log.i(TAG, "onPreExecute() called");
}

@Override
protected void onCancelled() {
//取消操作
Log.i(TAG, "onCancelled() called");
if (listener!=null) {
listener.onUploadEnd(false, null);
}
} @Override
protected void onPostExecute(Object result) {
//onPostExecute方法用于在执行完后台任务后更新UI,显示结果
Log.i(TAG, "onPostExecute(Result result) called");
if (listener!=null) {
if (result==null) {
listener.onUploadEnd(false, null);
} else {
listener.onUploadEnd(true,  result.toString());
}
}
}
@Override
protected void onProgressUpdate(Object... values) {
//onProgressUpdate方法用于更新进度信息
Log.i(TAG, "onProgressUpdate() called");
}

}

调试易

android同时上传文件和键值对

解决方案 »