package com.zwhy.touyuan.http;   import android.os.Handler; import android.os.Message;  import com.zwhy.touyuan.utils.LogUtil; import com.zwhy.touyuan.utils.UIUtils;  import java.io.BufferedReader; import java.io.DataOutputStream; import java.io.FileInputStream; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.net.HttpURLConnection; import java.net.URL; import java.util.Map; import java.util.UUID;  /**  * 作者：Administrator on 2015/12/28 09:23  */ public class FileUpload { /**  * 使用HttpURLConnection通过POST方式提交请求，并上传文件。  *  * @param actionUrl 访问的url  * @param textParams 文本类型的POST参数(key:value)  * @return 服务器返回的数据，出现异常时返回 null  */  public static String postWithFiles(String actionUrl, Map<String, Object> textParams,Map<String,String> filemap,Handler handler) { try { final String BOUNDARY = UUID.randomUUID().toString();  final String PREFIX = "--";  final String LINE_END = "\r\n";   final String MULTIPART_FROM_DATA = "multipart/form-data";  final String CHARSET = "UTF-8";   URL uri = new URL(actionUrl);  HttpURLConnection conn = (HttpURLConnection) uri.openConnection();   //缓存大小  conn.setChunkedStreamingMode(1024 * 64);  //超时  conn.setReadTimeout(5 * 1000);  conn.setDoInput(true);  conn.setDoOutput(true);  conn.setUseCaches(false);  conn.setRequestMethod("POST");   conn.setRequestProperty("connection", "keep-alive");  conn.setRequestProperty("Charset", "UTF-8");  conn.setRequestProperty("Content-Type", MULTIPART_FROM_DATA + ";boundary=" + BOUNDARY);   // 拼接文本类型的参数  StringBuilder textSb = new StringBuilder();  if (textParams != null) { for (Map.Entry<String, Object> entry : textParams.entrySet()) {
                    textSb.append(PREFIX).append(BOUNDARY).append(LINE_END);  textSb.append("Content-Disposition: form-data; name=\"" + entry.getKey() + "\"" + LINE_END);  textSb.append("Content-Type: text/plain; charset=" + CHARSET + LINE_END);  textSb.append("Content-Transfer-Encoding: 8bit" + LINE_END);  textSb.append(LINE_END);  textSb.append(entry.getValue());  textSb.append(LINE_END);  }
                LogUtil.i("-------------", "参数");  }

            DataOutputStream outStream = new DataOutputStream(conn.getOutputStream());  outStream.write(textSb.toString().getBytes());   //参数POST方式  //outStream.write("userId=1&cityId=26".getBytes());   // 发送文件数据  if (filemap != null) { for (Map.Entry<String, String> entry : filemap.entrySet()) {
                    StringBuilder fileSb = new StringBuilder();  fileSb.append(PREFIX).append(BOUNDARY).append(LINE_END);  fileSb.append("Content-Disposition: form-data; name=\""+entry.getKey()+"\"; filename=\"" +
                            entry.getValue().substring(entry.getValue().lastIndexOf("/") + 1) + "\"" + LINE_END);  fileSb.append("Content-Type: application/octet-stream; charset=" + CHARSET + LINE_END);  fileSb.append(LINE_END);  outStream.write(fileSb.toString().getBytes());  InputStream is = new FileInputStream(entry.getValue());  byte[] buffer = new byte[1024 * 8];  int len;  while ((len = is.read(buffer)) != -1) {
                        outStream.write(buffer, 0, len);  }

                    is.close();  outStream.write(LINE_END.getBytes());  }
                LogUtil.i("-------------", "参数" );  } // 请求结束标志  outStream.write((PREFIX + BOUNDARY + PREFIX + LINE_END).getBytes());  outStream.flush();   // 得到响应码  int responseCode = conn.getResponseCode();  LogUtil.i("-------------", "响应码" + responseCode);  BufferedReader br = new BufferedReader(new InputStreamReader(conn.getInputStream(), CHARSET));   StringBuilder resultSb = null;  String line;  if (responseCode == 200) {
                resultSb = new StringBuilder();  while ((line = br.readLine()) != null) {
                    resultSb.append(line).append("\n");  }
            }else {
                UIUtils.showToast(UIUtils.getContext(),"网络超时");  }

            br.close();  outStream.close();  conn.disconnect();  LogUtil.i("-------------", "返回数据" + resultSb.toString());  Message msg = Message.obtain();  msg.obj = resultSb.toString();  handler.sendMessage(msg);  return resultSb == null ? null : resultSb.toString();  } catch (IOException e) {
            e.printStackTrace();  } return null;  }
}