tomcat域名重写

<filter>
    <filter-name>UrlRewriteFilter</filter-name>
    <filter-class>org.tuckey.web.filters.urlrewrite.UrlRewriteFilter</filter-class>
</filter>
<filter-mapping>
    <filter-name>UrlRewriteFilter</filter-name>
    <url-pattern>/*</url-pattern>
</filter-mapping>

<urlrewrite>
    <rule>
        <from>^/oldpath/(.*)$</from>
        <to>/newpath/$1</to>
    </rule>
</urlrewrite>

import javax.servlet.*;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletRequestWrapper;
import java.io.IOException;

public class CustomUrlRewriteFilter implements Filter {
    @Override
    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
        HttpServletRequest httpRequest = (HttpServletRequest) request;
        String requestURI = httpRequest.getRequestURI();
        if (requestURI.startsWith("/oldpath/")) {
            String newURI = requestURI.replace("/oldpath/", "/newpath/");
            HttpServletRequestWrapper requestWrapper = new HttpServletRequestWrapper(httpRequest) {
                @Override
                public String getRequestURI() {
                    return newURI;
                }
            };
            chain.doFilter(requestWrapper, response);
        } else {
            chain.doFilter(request, response);
        }
    }

    @Override
    public void init(FilterConfig filterConfig) throws ServletException {}

    @Override
    public void destroy() {}
}

<filter>
    <filter-name>CustomUrlRewriteFilter</filter-name>
    <filter-class>com.example.CustomUrlRewriteFilter</filter-class>
</filter>
<filter-mapping>
    <filter-name>CustomUrlRewifyilter</filter-name>
    <url-pattern>/*</url-pattern>
</filter-mapping>