2006-08-30

只有少量页面需要生成静态页面时，可以试试这个类

 

package  com.schedule;

 import  java.io.BufferedReader;
 import  java.io.FileOutputStream;
 import  java.io.IOException;
 import  java.io.InputStreamReader;
 import  java.io.OutputStreamWriter;
 import  java.net.HttpURLConnection;
 import  java.net.MalformedURLException;
 import  java.net.URL;
 import  java.util.HashMap;
 import  java.util.Iterator;
 import  java.util.Map;

 public   class  StaticPageService  {
     private  Map < String, String >  urlMap;

     private  String realPath;

     public   void  createFile()  {
         if  (urlMap  ==   null )  {
             throw   new  NullPointerException( " The url map is should not be null! " );
        }
        Iterator < String >  keys  =  urlMap.keySet().iterator();
        String inputLine;
        String enter  =   " \n " ;
        StringBuffer buffer  =   new  StringBuffer();
         try   {
             while  (keys.hasNext())  {
                String key  =  keys.next();
                URL url  =   new  URL(key);
                HttpURLConnection uc  =  (HttpURLConnection) url.openConnection();
                BufferedReader in  =   new  BufferedReader( new  InputStreamReader(uc.getInputStream()));
                 if (buffer.length() > 0 )buffer.delete( 0 ,buffer.length());
                 while  ((inputLine  =  in.readLine())  !=   null )  {
                    buffer.append(inputLine);
                    buffer.append(enter);
                }
                String file  =  realPath  +  urlMap.get(key);
                OutputStreamWriter fw  =   new  OutputStreamWriter(
                         new  FileOutputStream(file),  " GBK " );
                fw.write(buffer.toString());
                in.close();
                fw.close();
            }
        }   catch  (MalformedURLException e)  {
            e.printStackTrace();
        }   catch  (IOException e)  {
            e.printStackTrace();
        }
    }

     /**
     *  @param  urlMap
     *            the urlMap to set
      */
     public   void  setUrlMap(Map < String, String >  urlMap)  {
         this .urlMap  =  urlMap;
    }

     /**
     *  @param  realPath
     *            the realPath to set
      */
     public   void  setRealPath(String realPath)  {
         this .realPath  =  realPath;
    }

     public   static   void  main(String[] args)  {
        StaticPageService service  =   new  StaticPageService();
        Map < String, String >  urlMap  =   new  HashMap < String, String > ();
         // map的key为要生成静态页面的url，value为生成后的静态文件保存的路径
        urlMap.put( " http://localhost:8080/index.jsp " ,  " /temp/index1.html " );
        urlMap.put( " http://www.yahoo.com.cn/ " ,  " /temp/index2.html " );
         // 此参数用来设置当前Web应用的真实路径
        service.setRealPath( " d: " );
        service.setUrlMap(urlMap);
        service.createFile();
    }

}
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