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package com.xjdnw.utility;
import java.io.IOException;
import java.io.PrintWriter;
import java.io.StringWriter;
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;
import javax.servlet.http.HttpServletResponseWrapper;
public class Response2Filter implements Filter {
public void destroy() {
// TODO Auto-generated method stub
}
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException,
ServletException {
HttpServletResponseWrapper2 response2 = new HttpServletResponseWrapper2((HttpServletResponse) response);
chain.doFilter(request, response2);
PrintWriter out = response.getWriter();
out.println(response2.toString());
response2.setHeader("Cache-Control", "no-cache");
response2.setHeader("Pragma", "no-cache");
response2.setHeader("X-UA-Compatible", "IE=EmulateIE7");
response2.setHeader("Content-Type", "text/html; charset=UTF-8");
response2.setDateHeader("Expires", -1);
}
public void init(FilterConfig filterConfig) throws ServletException {
// TODO Auto-generated method stub
}
private class HttpServletResponseWrapper2 extends HttpServletResponseWrapper {
private StringWriter stringWriter;
public HttpServletResponseWrapper2(HttpServletResponse response) {
super(response);
// TODO Auto-generated constructor stub
stringWriter = new StringWriter();
}
public PrintWriter getWriter() {
return new PrintWriter(stringWriter);
}
public String toString() {
return stringWriter.toString();
}
}
}