Simple example for using a custom Servlet-Filter to alter the HTTP Request handling thread-name to contain the request URI - to ease debugging.

App.java

package demo;

import static java.util.Collections.*;

import java.io.IOException;
import java.util.Map;

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 org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.Bean;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

/**
 * @author Thomas Darimont
 */
@SpringBootApplication
public class App {

	public static void main(String[] args) {
		SpringApplication.run(App.class, args);
	}

	@Bean
	public AdjustRequestThreadNameFilter threadNameFilter() {
		return new AdjustRequestThreadNameFilter();
	}
}

package de.eurodata.labs.demo.web.support;

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 org.springframework.core.Ordered;
import org.springframework.core.annotation.Order;

@Order(Ordered.HIGHEST_PRECEDENCE)
class AdjustRequestThreadNameFilter implements Filter {

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

	@Override
	public void destroy() { /* unused */}

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

		HttpServletRequest httpRequest = (HttpServletRequest) request;
		Thread requestThread = Thread.currentThread();
		String previousThreadName = requestThread.getName();

		try {
			requestThread.setName(formatRequestThreadName(httpRequest, previousThreadName));
			chain.doFilter(request, response);
		} finally {
			requestThread.setName(previousThreadName);
		}
	}

	private static String formatRequestThreadName(HttpServletRequest httpRequest, String previousThreadName) {
		return previousThreadName + " - " + httpRequest.getMethod() + " " + extractFullUrlFrom(httpRequest);
	}

	private static String extractFullUrlFrom(HttpServletRequest request) {

		if (request.getQueryString() == null) {
			return request.getRequestURI();
		}

		return request.getRequestURI() + "?" + request.getQueryString();
	}
}

@RestController
class Controller {

	@RequestMapping("/")
	public String index() {
		return "Hello";
	}

	@RequestMapping("dummy1")
	public Map<String, Object> dummy1() {
		return singletonMap("dummy", 1); // set breakpoint here and look at the thread-name in the debugger :)
	}
}