jsp页面静态化核心代码

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原创最新推荐文章于 2026-05-24 10:36:03 发布 692 阅读 AI 写同款· GEO 优化 ›

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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 {

	@Override
	public void init(FilterConfig filterConfig) throws ServletException {
		// TODO Auto-generated method stub

	}

	@Override
	public 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();
        }
        
    }

	@Override
	public void destroy() {
		// TODO Auto-generated method stub

	}
	
	
    
}