Java 读取模板并生成HTML静态文件实例

原理都很简单,主要是对模板的解析.so,我们先准备一个html模板
mb.html,做个文件其中的###title###之类的标签用于程序进行查询替换.

HTML code复制代码

<html>
<head>
<title>###title###</title>
<meta http-equiv="Content-Type" content="text/html; charset=gbk">
</head>

<body>
<table width="500" border="0" align="center" cellpadding="0" cellspacing="2">
    <tr>
        <td align="center">###title###</td>
    </tr>
    <tr>
        <td align="center">###author###  </td>
    </tr>
    <tr>
        <td>###content###</td>
    </tr>
<tr>
<td>###html###</td>
</tr>

</table>
</body>
</html>

下面是具体的代码:JspToHtml.java

Java code复制代码

import javax.servlet.http.HttpServletRequest;
import java.util.List;
import java.util.ArrayList;
import java.util.Date;
import java.net.URL;
import java.net.URLConnection;
import java.io.*;

/**
* Filename: JspToHtml.java <br>
* Ttitle: jsp转换成html<br>
* De.ion: 把动态网页转换成静态网页<br>
* Copyright:        Copyright (c) 2002-2008 BocSoft,Inc.All Rights Reserved. <br>
* Company:         BocSoft<br>
* Author:            <a href="mailto:sgicer@163.com">阿汐</a> <br>
* Date: 2006-6-19 <br>
* Time: 16:41:09 <br>
* Version: 2.0.0 <br>
*/
public class JspToHtml {

  private static String title ="标题测试";
  private static String context ="标题测试";
  private static String editer ="标题测试";

        /**
            * 根据本地模板生成静态页面
         * @param JspFile    jsp路经
         * @param HtmlFile html路经
         * @return
         */
        public static boolean JspToHtmlFile(String filePath, String HtmlFile) {
                String str = "";
                long beginDate = (new Date()).getTime();
                try {
                        String tempStr = "";
                  FileInputStream is = new FileInputStream(filePath);//读取模块文件
                        BufferedReader br = new BufferedReader(new InputStreamReader(is));
                        while ((tempStr = br.readLine()) != null)
                        str = str + tempStr ;
                        is.close();
                } catch (IOException e) {
                        e.printStackTrace();
                        return false;
                }
                try {

            str = str.replaceAll("###title###",
                title);
            str = str.replaceAll("###content###",
                context);
            str = str.replaceAll("###author###",
                editer);//替换掉模块中相应的地方

                        File f = new File(HtmlFile);
                        BufferedWriter o = new BufferedWriter(new FileWriter(f));
                        o.write(str);
                        o.close();
                        System.out.println("共用时：" + ((new Date()).getTime() - beginDate) + "ms");
                } catch (IOException e) {
                        e.printStackTrace();
                        return false;
                }
                return true;
        }

        /**
         * 根据url生成静态页面
         *
         * @param u        动态文件路经 如：http://www.163.com/x.jsp

         * @param path 文件存放路经如：x:\\abc\bbb.html
         * @return
         */
        public static boolean JspToHtmlByURL(String u, String path) {
                //从utl中读取html存为str
                String str = "";
                try {
                        URL url = new URL(u);
                        URLConnection uc = url.openConnection();
                        InputStream is = uc.getInputStream();
                        BufferedReader br = new BufferedReader(new InputStreamReader(is));
                        while (br.ready()) {
                                str += br.readLine() + "\n";

                        }
                        is.close();
                        //写入文件
                        File f = new File(path);
                        BufferedWriter o = new BufferedWriter(new FileWriter(f));
                        o.write(str);
                        o.close();
                        str = "";
                        return true;
                } catch (Exception e) {
                        e.printStackTrace();
                        return false;
                }
        }

        /**
         * 根据url生成静态页面
         *
         * @param url 动态文件路经 如：http://www.163.com/x.jsp

         * @return d
         */
        public static StringBuffer getHtmlTextByURL(String url) {
                //从utl中读取html存为str
                StringBuffer sb = new StringBuffer();
                try {
                        URL u = new URL(url);
                        URLConnection uc = u.openConnection();
                        InputStream is = uc.getInputStream();
                        BufferedReader br = new BufferedReader(new InputStreamReader(is));
                        while (br.ready()) {
                                sb.append(br.readLine() + "\n");
                        }
                        is.close();
                        return sb;
                } catch (Exception e) {
                        e.printStackTrace();
                        return sb;
                }
        }

        /**
         * 测试main 函数
         *
         * @param arg
         */
        public static void main(String[] arg) {
                long begin = System.currentTimeMillis();
    //循环生成20个html文件
                for (int k = 0; k < 20; k++) {
                        String url = "E:\\workspace\\oa\\golatel\\utils\\Temp\\mb.htm";//模板文件地址
                        String savepath = "d:/" + k + ".html";//生成文件地址
                        JspToHtmlFile(url, savepath);
                }
                System.out.println("用时:" + (System.currentTimeMillis() - begin) + "ms");
        }
}