使用过滤器从HTTPS重定向到HTTP

Question

我的应用程序中有几个页面在https:// localhost:8181上运行,几个页面在http:// localhost:8080上运行.我想从https降档到http但不知道如何去做.我知道我必须使用过滤器来管理从https到http和http到https的重定向.

我查看了这个链接[如何在Web应用程序中从HTTPS降级到HTTP] [1]

[1]:https: //blogs.oracle.com/jluehe/entry/how_to_downshift_from_https但是过滤器使用的链接被破坏了......我不清楚过滤器内应该做什么. ..

在我的web.xml中

  <filter>
      <filter-name>Non SSL port</filter-name>
      <filter-class>SSLFilter</filter-class>
      <init-param>
      <param-name>httpPort</param-name>
      <param-value>8080</param-value>
    </init-param>   
    </filter>

    <filter-mapping>
    <filter-name>NON SSL pages</filter-name>    
    <url-pattern>/pages/success.xhtml</url-pattern>
    <url-pattern>/pages/failure.xhtml</url-pattern>
    <url-pattern>/pages/about.xhtml</url-pattern>
   </filter-mapping>`

有人指导我在过滤器内需要做什么,以便在https到http之间转换顺利.

我正在使用Glassfish 3.1.1和JSF.

Answer 1

import java.io.IOException;
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.HttpServletRequest;  
import javax.servlet.http.HttpServletResponse;  

public class HttpsRedirectFilter implements Filter {

public void doFilter(ServletRequest request, ServletResponse response, 
                      FilterChain chain) throws IOException, ServletException {

    if(request instanceof HttpServletRequest
         && response instanceof HttpServletResponse) {
        HttpServletRequest httpReq = (HttpServletRequest) request;
        String redirectTarget = httpReq.getRequestURL().toString();
        redirectTarget = redirectTarget.replaceFirst("https", "http")
        redirectTarget = redirectTarget.replaceFirst(":8443", ":8080");  
        redirectTarget = redirectTarget.replaceFirst("home", "home.do");  
        if(request.isSecure()) {                   
            ((HttpServletResponse)response).sendRedirect(redirectTarget);  
        } else {  
            chain.doFilter(request, response);  
        }  
    }  
}
}