jsp页面静态化核心代码

package com.home.utils.filter;import java.io.CharArrayWriter;import java.io.IOException;import java.io.PrintWriter;import javax.servlet.http.HttpServletResponse;import javax.servlet.http.HttpServletResponseWrapper;/** * 获取responseBody数据工具类 * @author liu * @since 2017年8月3日 上午9:19:26 * */public class ResponseWrapper extends HttpServletResponseWrapper {    private PrintWriter cachedWriter;    private CharArrayWriter bufferedWriter;     public ResponseWrapper(HttpServletResponse response) throws IOException {        super(response);        bufferedWriter = new CharArrayWriter();        cachedWriter = new PrintWriter(bufferedWriter);    }     public PrintWriter getWriter() throws IOException {        return cachedWriter;    }     public String getResult() {        byte[] bytes = bufferedWriter.toString().getBytes();        try {            return new String(bytes, "GBK");        } catch (Exception e) {            return "";        }    } }

过滤器代码：

package com.home.utils.filter;import java.io.IOException;import java.io.PrintWriter;import javax.servlet.Filter;import javax.servlet.FilterChain;import javax.servlet.FilterConfig;import javax.servlet.ServletException;import javax.servlet.ServletRequest;import javax.servlet.ServletResponse;import javax.servlet.http.HttpServletResponse;public class HtmlFilter implements Filter {@Overridepublic void init(FilterConfig filterConfig) throws ServletException {// TODO Auto-generated method stub}@Overridepublic void doFilter(ServletRequest req, ServletResponse resp,            FilterChain chain) throws IOException, ServletException {                      HttpServletResponse response = (HttpServletResponse) resp;        ResponseWrapper mr = new ResponseWrapper(response);                 chain.doFilter(req, mr);                 PrintWriter out = resp.getWriter();         try {            String result = mr.getResult();             System.out.println(result);            out.write(result);        } catch (Exception e) {        e.printStackTrace();        } finally {            out.flush();             out.close();        }            }@Overridepublic void destroy() {// TODO Auto-generated method stub}    }