生成静态页面

import java.io.BufferedReader;

import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.InputStreamReader;

import java.net.HttpURLConnection;
import java.net.URL;
import java.util.Date;
import java.io.*;


public class MakeHtml {
    private static long star = 0;
    private static long end = 0;
    private static long ttime = 0;

    //返回html代码
    public static String getHtmlCodeByUrl(String httpUrl) {
        Date before = new Date();
        star = before.getTime();
        StringBuffer htmlCode = new StringBuffer() ;
        try {
            InputStream in;
            URL url = new java.net.URL(httpUrl);
            HttpURLConnection connection = (HttpURLConnection) url.
                openConnection();
            connection = (HttpURLConnection) url.openConnection();
            connection.setRequestProperty("User-Agent", "Mozilla/4.0");
            connection.connect();
            in = connection.getInputStream();
            java.io.BufferedReader breader = new BufferedReader(new
                InputStreamReader(in, "utf-8"));
            String currentLine;
            while ( (currentLine = breader.readLine()) != null) {
                //System.out.println(currentLine);
                htmlCode.append( currentLine +"\r\n");
            }
        }
        catch (Exception e) {
            e.printStackTrace();
        }
        finally {
            Date after = new Date();
            end = after.getTime();
            ttime = end - star;
            System.out.println("执行时间:" + ttime + "秒");
            //System.out.println(">>>"+htmlCode);

        }
        return htmlCode.toString();
    }

    //存储文件
    public static synchronized void writeHtml(String filePath, String info,
                                              String code) {

        if (code == null) code = "utf-8";
        try {

            //生成目录
            int ii = filePath.lastIndexOf(File.separator);
            if (ii > 0) {
                String ss = filePath.substring(0, ii);
                File fHandle = new File(ss);
                fHandle.mkdirs();
            }

            Writer out = new BufferedWriter(new OutputStreamWriter(new
                FileOutputStream(filePath), code));

            out.write(info);
            out.close();

        }
        catch (Exception ex) {
            System.out.println(">>>>>>>error:"+ex.getMessage());
        }

    }

    /**
     * 生成html文件
     * @param filepath String
     * @param url String
     * @param code String
     */
    public static void  makeHtml(String filepath,String url,String code){
        writeHtml(filepath, getHtmlCodeByUrl(url), code);
    }

    public static void main(String[] args) {
        String url = "http://www.publicchinese.com/blog/blogMain.action";
        writeHtml("c:/demo1.htm", getHtmlCodeByUrl(url), "utf-8");
    }
}