网站静态化知识点梳理

*、在进行网站静态化开发时，对于系统中引入的页面也想实现以引入html方式，这样当被引入的页面发生改变时，不需要对所有引用页面进行静态化，而只需要进行被引入页面的静态化即可。

案例：jquery动态加载html页面之load
http://www.360doc.com/content/15/0610/14/18139076_477138156.shtml

 

*、网站静态化核心之一：发起请求获取网页源码

/**
 * 模拟浏览器请求，给定的url返回网页源码
 * @param urlPath 网页地址
 * @param requestMethod GET或POST,默认是GET
 * @param codeType GBK或UTF-8,默认是GBK
 */
public static String getHtmlCode(String urlPath , String requestMethod , String codeType) {
	String aimHtml = null;
	try {
		URL url=new URL(urlPath);
	HttpURLConnection httpConn=(HttpURLConnection)url.openConnection();
	
	//设置参数
	httpConn.setDoOutput(true);     	//需要输出
	httpConn.setDoInput(true);      	//需要输入
	httpConn.setUseCaches(false);   	//不允许缓存
	httpConn.setRequestMethod(StringUtils.isBlank(requestMethod) ? "GET" : requestMethod);   //设置GET方式连接
	//httpConn.setConnectTimeout(1000 * 10); //链接超时10秒
	//httpConn.setReadTimeout(1000 * 6); //读取超时6秒
	//设置请求属性
	httpConn.setRequestProperty("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8");
	httpConn.setRequestProperty("Accept-Encoding", "gzip, deflate, sdch");
	httpConn.setRequestProperty("Accept-Language", "en-US,en;q=0.8");//唯一一处：关键点关键点关键点
	httpConn.setRequestProperty("Connection", "Keep-Alive");
	httpConn.setRequestProperty("Charset", StringUtils.isBlank(codeType) ? "GBK" : codeType);
	httpConn.setRequestProperty("Cache-Control", "max-age=0");
	httpConn.setRequestProperty("Upgrade-Insecure-Requests", "1");
	httpConn.setRequestProperty("User-Agent", "Mozilla/5.0");
	httpConn.connect();
	
	//获得响应状态
	int resultCode=httpConn.getResponseCode();
	if(HttpURLConnection.HTTP_OK==resultCode){
	    StringBuffer sb=new StringBuffer();
	    String readLine=new String();
	    BufferedReader responseReader=new BufferedReader(new InputStreamReader(httpConn.getInputStream(),StringUtils.isBlank(codeType) ? "GBK" : codeType));
	    while((readLine=responseReader.readLine())!=null){
		sb.append(readLine).append("\n");
	    }
	    responseReader.close();
	    aimHtml = sb.toString();
	}
	}catch(Exception e) {
		aimHtml = null;
		logger.error(urlPath+"网址访问失败！",e);
	}
	return aimHtml;
}

 

*、静态化网站核心之二是将源码写入文件且不出现乱码

/**
 * 将解析结果写入指定的静态HTML文件中
 * 
 * @param pageContent
 *            文本内容
 * @param fileUrl
 *            目标全路径
 * @throws Exception
 */
private static void writeHtml(String pageContent, String fileUrl)
		throws Exception {
	try {
		OutputStreamWriter fw = new OutputStreamWriter(
				new FileOutputStream(fileUrl), "UTF-8");
		fw.write(pageContent);
		if (fw != null) {
			fw.close();
		}
	} catch (Exception e) {
		logger.error(fileUrl + "文件写入失败！", e);
		throw e;
	}
}

 

*、静态时数据结构+urlwriter会提高效率，具体根据情境分析，(*^__^*) 嘻嘻……