jsp动态生成静态页面

研究了一下jsp动态生成静态页面 废话不多说了 直接上代码

/**
 * @author jeedroid
 * @time 2011-11-24 00:47:52
 */
package com.jeedroid.makehtml;
import java.io.*;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
import java.net.URLEncoder;
public class MakeHtml
{
	
public static void makeHtml(String url)
{
		try {
			//读取要访问的文件的内容
			URL _url=new URL(url);
			URLConnection conn=_url.openConnection();
			InputStream inputStream=conn.getInputStream();
			BufferedReader buffer=new BufferedReader(new InputStreamReader(inputStream));
			StringBuilder stringBuilder=new StringBuilder();
			String line=null;
			while((line=buffer.readLine())!=null)
			{
				stringBuilder.append(line);
			}
			String fileContent=stringBuilder.toString();
			inputStream.close();
			String htmlFileName=generateFileName(url);
			File htmlFile=new File("DHtml/",htmlFileName);
			if(!htmlFile.exists())
			{
				htmlFile.createNewFile();
			//把fileContent写入到html文件中
				FileWriter fileWriter=new FileWriter(htmlFile,true);
				BufferedWriter bufferedWriter=new BufferedWriter(fileWriter);
				bufferedWriter.write(fileContent);
				bufferedWriter.close();
				fileWriter.close();
			}
		} catch (MalformedURLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
}

//generate html filename according to request url 
public static String generateFileName(String url)
{
	String preFileName=url.substring(url.lastIndexOf("/"));
	//需要把请求参数中的"?"转换一下  否则文件名不能出现问号
		String fileName=preFileName.replace("?", URLEncoder.encode("?"));
		return fileName.replace(".", "_")+".html";
}

}

 然后用junit做了下测试

package com.jeedroid.makehtml;

import static org.junit.Assert.*;

import org.junit.Test;

public class MakeHtmlTest
{

	@Test
	public void testMakeHtml()
	{
		MakeHtml.makeHtml("http://localhost:8080/DynamicToHtml/index.jsp");
	}

}

 还不错 直接生成了静态页面 访问的时候只要用urlrewriter把对index.jsp的请求导向servlet，然后调用上面的javabean，转向html页面就行了 只要url一样就直接显示那个html 哈哈