How to convert a subdomain to a path with Embedded Tomcat 8 and Spring boot

Question

How to rewrite subdomains to paths?

Example:

• foo.bar .example.com --> example.com /foo/bar

Or better woul

Answer 1

It worked for me. Hope it works for others too.

Please use the following dependency

---

         
           org.tuckey
           urlrewritefilter
           4.0.4
         

---

Created urlrewrite.xml in resource folder

 
 



    Domain Name Check
    www.userdomain.com
    ^(.*)$
    http://www.userdomain.com$1

---

Added in main ApplicationRunner.java

@Bean
public FilterRegistrationBean tuckeyRegistrationBean() {
    final FilterRegistrationBean registrationBean = new FilterRegistrationBean();
    registrationBean.setFilter(new CustomURLRewriter());
    return registrationBean;
}

---

And created a CustomURLRewriter

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.env.Environment;
import org.springframework.core.io.ClassPathResource;
import org.tuckey.web.filters.urlrewrite.Conf;
import org.tuckey.web.filters.urlrewrite.UrlRewriteFilter;
import org.tuckey.web.filters.urlrewrite.UrlRewriter;
import javax.servlet.*;
import java.io.InputStream;

public class CustomURLRewriter extends UrlRewriteFilter {
private UrlRewriter urlRewriter;

@Autowired
Environment env;

@Override
public void loadUrlRewriter(FilterConfig filterConfig) throws ServletException {
    try {
        ClassPathResource classPathResource = new ClassPathResource("urlrewrite.xml");
        InputStream inputStream = classPathResource.getInputStream();
        Conf conf1 = new Conf(filterConfig.getServletContext(), inputStream, "urlrewrite.xml", "");
        urlRewriter = new UrlRewriter(conf1);
    } catch (Exception e) {
        throw new ServletException(e);
    }
}

@Override
public UrlRewriter getUrlRewriter(ServletRequest request, ServletResponse response, FilterChain chain) {
    return urlRewriter;
}

@Override
public void destroyUrlRewriter() {
    if(urlRewriter != null)
        urlRewriter.destroy();
}
}