安卓post 提交图片流和字符数据

<?php 
    $target_path  = "./upload/";//接收文件目录 
    $target_path = $target_path . basename( $_FILES['uploadedfile']['name']); 
    if(move_uploaded_file($_FILES['uploadedfile']['tmp_name'], $target_path)) { 
       echo "The file ".  basename( $_FILES['uploadedfile']['name']). " has been uploaded"; 
    }  else{ 
       echo "There was an error uploading the file, please try again!" . $_FILES['uploadedfile']['error']; 
    } 
    ?>

android

package com.figo.uploadfile;
 
import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.FileInputStream;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
 
public class UploadfileActivity extends Activity
{
  // 要上传的文件路径，理论上可以传输任何文件，实际使用时根据需要处理
  private String uploadFile = "/sdcard/testimg.jpg";
  private String srcPath = "/sdcard/testimg.jpg";
  // 服务器上接收文件的处理页面，这里根据需要换成自己的
  private String actionUrl = "http://10.100.1.208/receive_file.php";
  private TextView mText1;
  private TextView mText2;
  private Button mButton;
 
  @Override
  public void onCreate(Bundle savedInstanceState)
  {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
 
    mText1 = (TextView) findViewById(R.id.myText2);
    mText1.setText("文件路径：
" + uploadFile);
    mText2 = (TextView) findViewById(R.id.myText3);
    mText2.setText("上传网址：
" + actionUrl);
    /* 设置mButton的onClick事件处理 */
    mButton = (Button) findViewById(R.id.myButton);
    mButton.setOnClickListener(new View.OnClickListener()
    {
      @Override
      public void onClick(View v)
      {
        uploadFile(actionUrl);
      }
    });
  }
 
  /* 上传文件至Server，uploadUrl：接收文件的处理页面 */
  private void uploadFile(String uploadUrl)
  {
    String end = "
";
    String twoHyphens = "--";
    String boundary = "******";
    try
    {
      URL url = new URL(uploadUrl);
      HttpURLConnection httpURLConnection = (HttpURLConnection) url
          .openConnection();
      // 设置每次传输的流大小，可以有效防止手机因为内存不足崩溃
      // 此方法用于在预先不知道内容长度时启用没有进行内部缓冲的 HTTP 请求正文的流。
      httpURLConnection.setChunkedStreamingMode(128 * 1024);// 128K
      // 允许输入输出流
      httpURLConnection.setDoInput(true);
      httpURLConnection.setDoOutput(true);
      httpURLConnection.setUseCaches(false);
      // 使用POST方法
      httpURLConnection.setRequestMethod("POST");
      httpURLConnection.setRequestProperty("Connection", "Keep-Alive");
      httpURLConnection.setRequestProperty("Charset", "UTF-8");
      httpURLConnection.setRequestProperty("Content-Type",
          "multipart/form-data;boundary=" + boundary);
 
      DataOutputStream dos = new DataOutputStream(
          httpURLConnection.getOutputStream());
      dos.writeBytes(twoHyphens + boundary + end);
      dos.writeBytes("Content-Disposition: form-data; name="uploadedfile"; filename=""
          + srcPath.substring(srcPath.lastIndexOf("/") + 1)
          + """
          + end);
      dos.writeBytes(end);
 
      FileInputStream fis = new FileInputStream(srcPath);
      byte[] buffer = new byte[8192]; // 8k
      int count = 0;
      // 读取文件
      while ((count = fis.read(buffer)) != -1)
      {
        dos.write(buffer, 0, count);
      }
      fis.close();
 
      dos.writeBytes(end);
      dos.writeBytes(twoHyphens + boundary + twoHyphens + end);
      dos.flush();
 
      InputStream is = httpURLConnection.getInputStream();
      InputStreamReader isr = new InputStreamReader(is, "utf-8");
      BufferedReader br = new BufferedReader(isr);
      String result = br.readLine();
 
      Toast.makeText(this, result, Toast.LENGTH_LONG).show();
      dos.close();
      is.close();
 
    } catch (Exception e)
    {
      e.printStackTrace();
      setTitle(e.getMessage());
    }
  }
}

参数比较全的

public static String post(String actionUrl, Map<String, String> params, 
        Map<String, File> files) throws IOException { 
      StringBuilder sb2 = new StringBuilder(); 
      String BOUNDARY = java.util.UUID.randomUUID().toString();
      String PREFIX = "--" , LINEND = "
";
      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);
      conn.setDoOutput(true);
      conn.setUseCaches(false); 
      conn.setRequestMethod("POST"); 
      conn.setRequestProperty("connection", "keep-alive"); 
      conn.setRequestProperty("Charsert", "UTF-8"); 
      conn.setRequestProperty("Content-Type", MULTIPART_FROM_DATA + ";boundary=" + BOUNDARY); 
 
      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()); 
      if(files!=null){
        //int i = 0;
        for (Map.Entry<String, File> file: files.entrySet()) { 
          StringBuilder sb1 = new StringBuilder(); 
          sb1.append(PREFIX); 
          sb1.append(BOUNDARY); 
          sb1.append(LINEND); 
          //sb1.append("Content-Disposition: form-data; name="file"+(i++)+""; filename=""+file.getKey()+"""+LINEND);
          sb1.append("Content-Disposition: form-data; name="userupfile"; filename=""+file.getKey()+"""+LINEND);
          sb1.append("Content-Type: application/octet-stream; charset="+CHARSET+LINEND);
          sb1.append(LINEND);
          outStream.write(sb1.toString().getBytes()); 
 
          InputStream is = new FileInputStream(file.getValue());
          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()); 
        } 
      }
       
      byte[] end_data = (PREFIX + BOUNDARY + PREFIX + LINEND).getBytes(); 
      outStream.write(end_data); 
      outStream.flush(); 
 
      int res = conn.getResponseCode(); 
      InputStream in = null;
      if (res == 200) {
        in = conn.getInputStream(); 
        int ch; 
         
        while ((ch = in.read()) != -1) { 
          sb2.append((char) ch); 
        } 
        Log.i("CAMERA", sb2.toString());
      }
       
      return in == null ? null : sb2.toString(); 
    }