android中模拟http协议表单上传

来源：互联网发布：广告图设计软件编辑：程序博客网时间：2024/05/01 18:34
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
Java代码  
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;     
        }     
    }     
  
}  
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