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move url matching (eugenp#3326)
* make sure modules using java8 * move url matching code
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11 files changed

+185
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‎spring-5-reactive/pom.xml‎

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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-web</artifactId>
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<artifactId>spring-boot-starter-tomcat</artifactId>
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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>

‎spring-5/src/main/java/com/baeldung/web/PathPatternController.java‎ renamed to ‎spring-5-reactive/src/main/java/com/baeldung/reactive/controller/PathPatternController.java‎

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package com.baeldung.web;
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package com.baeldung.reactive.controller;
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import org.springframework.web.bind.annotation.GetMapping;
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import org.springframework.web.bind.annotation.PathVariable;

‎spring-5-reactive/src/main/java/com/baeldung/reactive/urlmatch/Actor.java‎

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package com.baeldung.reactive.urlmatch;
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class Actor {
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private String firstname;
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private String lastname;
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public Actor() {
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}
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public Actor(String firstname, String lastname) {
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this.firstname = firstname;
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this.lastname = lastname;
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}
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public String getFirstname() {
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return firstname;
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}
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public String getLastname() {
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return lastname;
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}
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}

‎spring-5/src/main/java/com/baeldung/functional/ExploreSpring5URLPatternUsingRouterFunctions.java‎ renamed to ‎spring-5-reactive/src/main/java/com/baeldung/reactive/urlmatch/ExploreSpring5URLPatternUsingRouterFunctions.java‎

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package com.baeldung.functional;
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package com.baeldung.reactive.urlmatch;
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import static org.springframework.web.reactive.function.BodyInserters.fromObject;
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import static org.springframework.web.reactive.function.server.RequestPredicates.GET;

‎spring-5-reactive/src/main/java/com/baeldung/reactive/urlmatch/FormHandler.java‎

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package com.baeldung.reactive.urlmatch;
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import org.springframework.core.io.buffer.DataBuffer;
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import org.springframework.util.MultiValueMap;
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import org.springframework.web.reactive.function.server.ServerRequest;
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import org.springframework.web.reactive.function.server.ServerResponse;
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import reactor.core.publisher.Mono;
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import java.util.List;
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import java.util.concurrent.atomic.AtomicLong;
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import static org.springframework.web.reactive.function.BodyExtractors.toDataBuffers;
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import static org.springframework.web.reactive.function.BodyExtractors.toFormData;
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import static org.springframework.web.reactive.function.BodyInserters.fromObject;
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import static org.springframework.web.reactive.function.server.ServerResponse.ok;
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public class FormHandler {
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Mono<ServerResponse> handleLogin(ServerRequest request) {
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return request.body(toFormData())
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.map(MultiValueMap::toSingleValueMap)
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.filter(formData -> "baeldung".equals(formData.get("user")))
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.filter(formData -> "you_know_what_to_do".equals(formData.get("token")))
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.flatMap(formData -> ok().body(Mono.just("welcome back!"), String.class))
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.switchIfEmpty(ServerResponse.badRequest()
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.build());
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}
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Mono<ServerResponse> handleUpload(ServerRequest request) {
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return request.body(toDataBuffers())
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.collectList()
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.flatMap(dataBuffers -> ok().body(fromObject(extractData(dataBuffers).toString())));
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}
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private AtomicLong extractData(List<DataBuffer> dataBuffers) {
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AtomicLong atomicLong = new AtomicLong(0);
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dataBuffers.forEach(d -> atomicLong.addAndGet(d.asByteBuffer()
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.array().length));
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return atomicLong;
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}
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}

‎spring-5-reactive/src/main/java/com/baeldung/reactive/urlmatch/FunctionalWebApplication.java‎

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package com.baeldung.reactive.urlmatch;
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import static org.springframework.web.reactive.function.BodyInserters.fromObject;
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import static org.springframework.web.reactive.function.server.RequestPredicates.GET;
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import static org.springframework.web.reactive.function.server.RequestPredicates.POST;
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import static org.springframework.web.reactive.function.server.RequestPredicates.path;
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import static org.springframework.web.reactive.function.server.RouterFunctions.route;
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import static org.springframework.web.reactive.function.server.RouterFunctions.toHttpHandler;
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import static org.springframework.web.reactive.function.server.ServerResponse.ok;
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import java.util.Arrays;
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import java.util.List;
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import java.util.concurrent.CopyOnWriteArrayList;
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import org.apache.catalina.Context;
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import org.apache.catalina.startup.Tomcat;
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import org.springframework.boot.web.embedded.tomcat.TomcatWebServer;
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import org.springframework.boot.web.server.WebServer;
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import org.springframework.core.io.ClassPathResource;
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import org.springframework.http.server.reactive.HttpHandler;
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import org.springframework.http.server.reactive.ServletHttpHandlerAdapter;
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import org.springframework.web.reactive.function.server.RouterFunction;
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import org.springframework.web.reactive.function.server.RouterFunctions;
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import org.springframework.web.reactive.function.server.ServerResponse;
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import org.springframework.web.server.WebHandler;
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import org.springframework.web.server.adapter.WebHttpHandlerBuilder;
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import reactor.core.publisher.Flux;
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public class FunctionalWebApplication {
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private static final Actor BRAD_PITT = new Actor("Brad", "Pitt");
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private static final Actor TOM_HANKS = new Actor("Tom", "Hanks");
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private static final List<Actor> actors = new CopyOnWriteArrayList<>(Arrays.asList(BRAD_PITT, TOM_HANKS));
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private RouterFunction<ServerResponse> routingFunction() {
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FormHandler formHandler = new FormHandler();
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RouterFunction<ServerResponse> restfulRouter = route(GET("/"), serverRequest -> ok().body(Flux.fromIterable(actors), Actor.class)).andRoute(POST("/"), serverRequest -> serverRequest.bodyToMono(Actor.class)
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.doOnNext(actors::add)
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.then(ok().build()));
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return route(GET("/test"), serverRequest -> ok().body(fromObject("helloworld"))).andRoute(POST("/login"), formHandler::handleLogin)
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.andRoute(POST("/upload"), formHandler::handleUpload)
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.and(RouterFunctions.resources("/files/**", new ClassPathResource("files/")))
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.andNest(path("/actor"), restfulRouter)
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.filter((request, next) -> {
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System.out.println("Before handler invocation: " + request.path());
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return next.handle(request);
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});
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}
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WebServer start() throws Exception {
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WebHandler webHandler = (WebHandler) toHttpHandler(routingFunction());
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HttpHandler httpHandler = WebHttpHandlerBuilder.webHandler(webHandler)
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.filter(new IndexRewriteFilter())
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.build();
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Tomcat tomcat = new Tomcat();
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tomcat.setHostname("localhost");
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tomcat.setPort(9090);
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Context rootContext = tomcat.addContext("", System.getProperty("java.io.tmpdir"));
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ServletHttpHandlerAdapter servlet = new ServletHttpHandlerAdapter(httpHandler);
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Tomcat.addServlet(rootContext, "httpHandlerServlet", servlet);
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rootContext.addServletMappingDecoded("/", "httpHandlerServlet");
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TomcatWebServer server = new TomcatWebServer(tomcat);
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server.start();
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return server;
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}
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public static void main(String[] args) {
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try {
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new FunctionalWebApplication().start();
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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}

‎spring-5-reactive/src/main/java/com/baeldung/reactive/urlmatch/IndexRewriteFilter.java‎

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package com.baeldung.reactive.urlmatch;
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import org.springframework.http.server.reactive.ServerHttpRequest;
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import org.springframework.web.server.ServerWebExchange;
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import org.springframework.web.server.WebFilter;
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import org.springframework.web.server.WebFilterChain;
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import reactor.core.publisher.Mono;
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class IndexRewriteFilter implements WebFilter {
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@Override
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public Mono<Void> filter(ServerWebExchange serverWebExchange, WebFilterChain webFilterChain) {
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ServerHttpRequest request = serverWebExchange.getRequest();
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if (request.getURI()
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.getPath()
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.equals("/")) {
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return webFilterChain.filter(serverWebExchange.mutate()
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.request(builder -> builder.method(request.getMethod())
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.contextPath(request.getPath()
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.toString())
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.path("/test"))
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.build());
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}
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return webFilterChain.filter(serverWebExchange);
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}
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}

‎spring-5-reactive/src/main/resources/files/hello.txt‎

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hello

‎spring-5-reactive/src/main/resources/files/test/test.txt‎

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test

‎spring-5/src/test/java/com/baeldung/functional/ExploreSpring5URLPatternUsingRouterFunctionsTest.java‎ renamed to ‎spring-5-reactive/src/test/java/com/baeldung/reactive/urlmatch/ExploreSpring5URLPatternUsingRouterFunctionsIntegrationTest.java‎

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package com.baeldung.functional;
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package com.baeldung.reactive.urlmatch;
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import org.junit.AfterClass;
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import org.junit.BeforeClass;
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import org.junit.Test;
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import org.springframework.boot.web.server.WebServer;
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import org.springframework.test.web.reactive.server.WebTestClient;
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public class ExploreSpring5URLPatternUsingRouterFunctionsTest {
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import com.baeldung.reactive.urlmatch.ExploreSpring5URLPatternUsingRouterFunctions;
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public class ExploreSpring5URLPatternUsingRouterFunctionsIntegrationTest {
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private static WebTestClient client;
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private static WebServer server;

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