1，根据模板生成静态页面

导入依赖：

<dependency>
            <groupId>commons-httpclient</groupId>
            <artifactId>commons-httpclient</artifactId>
            <version>3.1</version>
</dependency>

package com.wjb.util;

import org.apache.commons.httpclient.DefaultHttpMethodRetryHandler;
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.methods.GetMethod;
import org.apache.commons.httpclient.params.HttpMethodParams;
import org.apache.log4j.Logger;

import java.io.*;

/**
 * Created by wjb on 2017/5/9.
 */
public class HtmlGenerator {
    private final static Logger logger = Logger.getLogger(HtmlGenerator.class);
    HttpClient httpClient = null; //HttpClient实例
    GetMethod getMethod = null; //GetMethod实例
    BufferedWriter fw = null;
    String page = null;
    String webappname = null;
    BufferedReader br = null;
    InputStream in = null;
    StringBuffer sb = null;
    String line = null;

    //构造方法
    public HtmlGenerator(String webappname) {
        this.webappname = webappname;

    }

    /**
     * 根据模版及参数产生静态页面
     */
    public boolean createHtmlPage(String url, String htmlFileName) {
        boolean status = false;
        int statusCode = 0;
        try {
            //创建一个HttpClient实例充当模拟浏览器
            httpClient = new HttpClient();
            //设置httpclient读取内容时使用的字符集
            httpClient.getParams().setParameter(HttpMethodParams.HTTP_CONTENT_CHARSET, "UTF-8");
            //创建GET方法的实例
            getMethod = new GetMethod(url);
            //使用系统提供的默认的恢复策略，在发生异常时候将自动重试3次
            getMethod.getParams().setParameter(HttpMethodParams.RETRY_HANDLER, new DefaultHttpMethodRetryHandler());
            //设置Get方法提交参数时使用的字符集,以支持中文参数的正常传递
            getMethod.addRequestHeader("Content-Type", "text/html;charset=UTF-8");
            //执行Get方法并取得返回状态码，200表示正常，其它代码为异常
            statusCode = httpClient.executeMethod(getMethod);
            if (statusCode != 200) {
                logger.fatal("静态页面引擎在解析" + url + "产生静态页面" + htmlFileName + "时出错!");
            } else {
                //读取解析结果
                sb = new StringBuffer();
                in = getMethod.getResponseBodyAsStream();
                //br = new BufferedReader(new InputStreamReader(in));//此方法默认会乱码，经过长时期的摸索，下面的方法才可以
                br = new BufferedReader(new InputStreamReader(in, "UTF-8"));
                while ((line = br.readLine()) != null) {
                    sb.append(line + "\n");
                }
                if (br != null) br.close();
                page = sb.toString();
                //将页面中的相对路径替换成绝对路径，以确保页面资源正常访问
                page = formatPage(page);
                //将解析结果写入指定的静态HTML文件中，实现静态HTML生成
                writeHtml(htmlFileName, page);
                status = true;
            }
        } catch (Exception ex) {
            logger.fatal("静态页面引擎在解析" + url + "产生静态页面" + htmlFileName + "时出错:" + ex.getMessage());
        } finally {
            //释放http连接
            getMethod.releaseConnection();
        }
        return status;
    }

    //将解析结果写入指定的静态HTML文件中
    private synchronized void writeHtml(String htmlFileName, String content) throws Exception {
        fw = new BufferedWriter(new FileWriter(htmlFileName));
        OutputStreamWriter fw = new OutputStreamWriter(new FileOutputStream(htmlFileName), "UTF-8");
        fw.write(page);
        if (fw != null) fw.close();
    }

    //将页面中的相对路径替换成绝对路径，以确保页面资源正常访问
    private String formatPage(String page) {
        page = page.replaceAll("\\.\\./\\.\\./\\.\\./", webappname + "/");
        page = page.replaceAll("\\.\\./\\.\\./", webappname + "/");
        page = page.replaceAll("\\.\\./", webappname + "/");
        return page;
    }

    //测试方法
    public static void main(String[] args) {
        HtmlGenerator h = new HtmlGenerator("wjbHtml");
        h.createHtmlPage("http://www.jianshu.com/u/1b21f2e84e3e", "src/main/resources/templates/a.html");
        h.createHtmlPage("http://localhost:8080/wjb", "src/main/resources/templates/c.html");

        System.out.println("静态页面已经生成");

    }

}

2,拼接标签生成页面

package com.wjb.util;

import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.PrintStream;

/**
 * Created by wjb on 2017/5/9.
 */
public class DynamicHtml {
    public static void main(String[] args) {
        StringBuilder stringHtml = new StringBuilder();
        PrintStream ps = null;
        try {
            ps = new PrintStream(new FileOutputStream("src/main/resources/templates/b.html"));

        } catch (FileNotFoundException e) {
            e.printStackTrace();
        }
        stringHtml.append("<html><head>");
        stringHtml.append("<meta http-equiv=\"Content-Type\" content=\"text/html; charset=GBK\">");
        stringHtml.append("<title>测试页面</title>");
        stringHtml.append("</head>");
        stringHtml.append("<body>");
        stringHtml.append("<div>hello</div>");
        stringHtml.append("</body></html>");
        ps.println(stringHtml.toString());

    }

}