android中模拟http协议表单上传

转自：http://helloandroid.iteye.com/blog/1183853

利用ie浏览器插件httpwatch查看form表单上传时的数据封装格式，然后照着这数据格式自己一步一步封装 



 

 

 package com.android.cist.network.form;

 import java.io.DataOutputStream;
 import java.io.InputStream;
 import java.io.UnsupportedEncodingException;
 import java.net.HttpURLConnection;
 import java.net.URL;
 import java.net.URLEncoder;
 import java.util.Iterator;
 import java.util.Map;
 import java.util.Set;

 public class HttpFormUtil {

     public static String post(String actionUrl, Map<String, String> params,FormFile[] files) {
         try {
             String enterNewline = "\r\n";
             String fix="--";
             String boundary="######";
             String MULTIPART_FORM_DATA = "multipart/form-data";

             URL url = new URL(actionUrl);

             HttpURLConnection con = (HttpURLConnection)url.openConnection();
             con.setDoInput(true);
             con.setDoOutput(true);
             con.setUseCaches(false);
             con.setRequestMethod("POST");
             con.setRequestProperty("Connection", "Keep-Alive");
             con.setRequestProperty("Accept", "image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/x-shockwave-flash, application/msword, application/vnd.ms-excel, application/vnd.ms-powerpoint, */*");
             con.setRequestProperty("Accept-Encoding", "gzip, deflate");
             con.setRequestProperty("Charset", "UTF-8");
             con.setRequestProperty("Content-Type", MULTIPART_FORM_DATA+ ";boundary=" + boundary);

             DataOutputStream ds = new DataOutputStream(con.getOutputStream());
             Set<String> keySet = params.keySet();
             Iterator<String> it = keySet.iterator();

             while(it.hasNext()){
                 String key = it.next();
                 String value = params.get(key);
                 ds.writeBytes(fix+boundary+enterNewline);
                 ds.writeBytes("Content-Disposition: form-data; "+"name=\"" + key + "\"" + enterNewline);
                 ds.writeBytes(enterNewline);
                 //ds.write(value.getBytes("UTF-8"));
                 ds.writeBytes(value);//如果有中文乱码，保存改用上面的ds.writeBytes(enterNewline);那句代码
                 ds.writeBytes(enterNewline);
             }

             if(files!=null&&files.length>0){
                 ds.writeBytes(fix+boundary+enterNewline);
                 ds.writeBytes("Content-Disposition: form-data; "+"name=\"" + files[0].getFormname() + "\"" +"; filename=\""+files[0].getFilname()+"\""+enterNewline);
                 ds.writeBytes(enterNewline);
                 ds.write(files[0].getData());
                 ds.writeBytes(enterNewline);
             }

             ds.writeBytes(fix+boundary+fix+enterNewline);
             ds.flush();

             InputStream is = con.getInputStream();
             int ch;
             StringBuffer b = new StringBuffer();

             while((ch = is.read()) != -1){
                 b.append((char)ch);
             }
             ds.close();

             return b.toString().trim();

         } catch (Exception e) {
             throw new RuntimeException(e);
         }
     }

     public static String encode(String url) {
         try {
             return URLEncoder.encode(url, "UTF-8");
         } catch (UnsupportedEncodingException ex) {
             return url;
         }
     }

 }