public static Map ConvertObjToMap(Object obj){
              Map<String,Object> reMap = new HashMap<String,Object>();
              if (obj == null) 
               return null;
              Field[] fields = obj.getClass().getDeclaredFields();
              try {
               for(int i=0;i<fields.length;i++){
                try {
                 Field f = obj.getClass().getDeclaredField(fields[i].getName());
                 f.setAccessible(true);
                       Object o = f.get(obj);
                       if(o == null){
                           o = "";
                       }else{
                           o = String.valueOf(o);
                       }
                       reMap.put(fields[i].getName(), String.valueOf(o));
                } catch (NoSuchFieldException e) {
                 // TODO Auto-generated catch block
                 e.printStackTrace();
                } catch (IllegalArgumentException e) {
                 // TODO Auto-generated catch block
                 e.printStackTrace();
                } catch (IllegalAccessException e) {
                 // TODO Auto-generated catch block
                 e.printStackTrace();
                }
               }
              } catch (SecurityException e) {
               // TODO Auto-generated catch block
               e.printStackTrace();
              } 
              return reMap;
             }

import java.io.BufferedWriter;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.util.List;

import org.apache.log4j.Logger;
import org.apache.tomcat.util.http.fileupload.FileItem;
import org.apache.tomcat.util.http.fileupload.disk.DiskFileItemFactory;
import org.apache.tomcat.util.http.fileupload.servlet.ServletFileUpload;

import com.puff.framework.annotation.Controller;
import com.puff.web.mvc.PuffContext;
import com.puff.web.view.View;

@Controller("/upload/android")
public class AndroidVersionUploadController {

    private static final Logger logger = Logger.getLogger(UserImageController.class);
    
    private static final String FILE_PATH = "C:/Users/Administrator/Desktop";
    
    private static final String FILE_APK_NAME = "/nn.apk";
    private static final String FILE_VER_NAME = "/ver.txt";
    
    /**
     * 版本上传
     * @return
     * @throws Exception 
     */
    public View update() throws Exception {
        DiskFileItemFactory factory = new DiskFileItemFactory(); 
        ServletFileUpload upload = new ServletFileUpload(factory); 
        List<FileItem> items = upload.parseRequest( PuffContext.getRequest()); 
        
        String ver = null;
        String info = null;
        String isFoucs = null;
        for(Object object : items) { 
            FileItem fileItem = (FileItem)object; 
            if(fileItem.isFormField()) { 
                
                String name = fileItem.getFieldName();
                String value = fileItem.getString("utf-8");
                
                if("ver".equals(name)){
                    ver = value;
                }else if("content".equals(name)){
                    info = value;
                }else if("radio".equals(name)){
                    isFoucs = value;
                }
            } else {
                saveFileInfo(fileItem);
            }
        } 
        
        saveContentInfo(ver, info, isFoucs);
        
        return null;
    
    }

    private void saveFileInfo(FileItem fileItem) {
        
        InputStream is = null;
        OutputStream os = null;
        try {
            File file = new File(FILE_PATH);
            if(file.exists()) {
                file.mkdirs();
            }
            
            is = fileItem.getInputStream();
            os = new FileOutputStream(FILE_PATH + FILE_APK_NAME);
            
            int len = 0;
            byte[] buffer = new byte[8 * 1024];
            while ((len = is.read(buffer, 0, 8 * 1024)) != -1) {
                os.write(buffer, 0, len);
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            closeOutputStream(os);
            closeInputStream(is);
        }
    }
    
    public void saveContentInfo(String ver, String info, String isFoucs) {
        BufferedWriter br = null;
        try {
            File file = new File(FILE_PATH);
            if(file.exists()) {
                file.mkdirs();
            }
            
            br = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(FILE_PATH + FILE_VER_NAME), "utf-8"));
            br.write("ver:" + ver + "\r\n");   //版本号
            br.write("update:" + isFoucs+ "\r\n");   //是否强制更新
            br.write("content:" + info );    //版本升级内容
            br.flush();
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            try {
                if(br != null) {
                    br.close();
                }
            } catch (IOException e) {
                e.printStackTrace();
            } finally {
                br = null;
            }
        }
    }


    private void closeOutputStream(OutputStream os) {
        if(os != null) {
            try {
                os.close();
            } catch (IOException e) {
                e.printStackTrace();
            } finally {
                os = null;
            }
        }
    }
    
    private void closeInputStream(InputStream is) {
        if(is != null) {
            try {
                is.close();
            } catch (IOException e) {
                e.printStackTrace();
            } finally {
                is = null;
            }
        }
    }
}