- package com.yancms.util;
- import java.io.*;
- import org.apache.commons.httpclient.*;
- import org.apache.commons.httpclient.methods.*;
- import org.apache.commons.httpclient.params.HttpMethodParams;
- /**
- * 静态页面引擎技术(突乱了乱码问题UTF-8)
- * @author 吴彦文
- *
- */
- public class HtmlGenerator extends BaseLog {
- 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("webappname");
- h.createHtmlPage("http://localhost:8080/yanCms/three/three?parent_id=10&id=103&type=10","c:/a.html");
- System.out.println("静态页面已经生成到c:/a.html");
- }
- }