How to return 404 with Spring WebFlux (#6509)
* feat(response-status): return response http status * fix(style): improve code style * BAEL-2716: How to return 404 with Spring WebFlux * style: apply baeldung intellij formatter * Delete .gitignore * config: remove gitignore & remove unused maven plugin
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jarpz
Eugen
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33f054be45
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05e3bf3a82
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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>com.baeldung</groupId>
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<artifactId>spring-5-webflux</artifactId>
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<version>1.0-SNAPSHOT</version>
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<name>spring-5-webflux</name>
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<url>http://www.baeldung.com</url>
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<properties>
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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<maven.compiler.source>1.8</maven.compiler.source>
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<maven.compiler.target>1.8</maven.compiler.target>
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<spring-boot.version>2.0.2.RELEASE</spring-boot.version>
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</properties>
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<dependencyManagement>
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<dependencies>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-dependencies</artifactId>
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<version>${spring-boot.version}</version>
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<type>pom</type>
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<scope>import</scope>
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</dependency>
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</dependencies>
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</dependencyManagement>
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<dependencies>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-webflux</artifactId>
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</dependency>
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<dependency>
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<groupId>org.projectlombok</groupId>
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<artifactId>lombok</artifactId>
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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-test</artifactId>
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<scope>test</scope>
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</dependency>
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<dependency>
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<groupId>junit</groupId>
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<artifactId>junit</artifactId>
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<scope>test</scope>
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</dependency>
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</dependencies>
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<build>
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<plugins>
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<plugin>
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<artifactId>maven-compiler-plugin</artifactId>
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<version>3.8.0</version>
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</plugin>
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<plugin>
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<artifactId>maven-surefire-plugin</artifactId>
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<version>2.22.1</version>
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</plugin>
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</plugins>
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</build>
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</project>
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package com.baeldung.spring.responsestatus;
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import org.springframework.context.annotation.Bean;
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import org.springframework.http.HttpStatus;
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import org.springframework.http.MediaType;
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import org.springframework.http.ResponseEntity;
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import org.springframework.http.server.reactive.ServerHttpResponse;
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import org.springframework.web.bind.annotation.*;
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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 reactor.core.publisher.Flux;
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import reactor.core.publisher.Mono;
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import static org.springframework.web.reactive.function.server.RequestPredicates.GET;
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@RequestMapping("/statuses")
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@RestController
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public class ResponseStatusController {
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@GetMapping(value = "/ok", produces = MediaType.APPLICATION_JSON_UTF8_VALUE)
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public Flux<String> ok() {
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return Flux.just("ok");
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}
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@GetMapping(value = "/no-content", produces = MediaType.APPLICATION_JSON_UTF8_VALUE)
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@ResponseStatus(HttpStatus.NO_CONTENT)
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public Flux<String> noContent() {
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return Flux.empty();
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}
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@GetMapping(value = "/accepted", produces = MediaType.APPLICATION_JSON_UTF8_VALUE)
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public Flux<String> accepted(ServerHttpResponse response) {
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response.setStatusCode(HttpStatus.ACCEPTED);
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return Flux.just("accepted");
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}
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@GetMapping(value = "/bad-request")
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public Mono<String> badRequest() {
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return Mono.error(new IllegalArgumentException());
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}
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@ResponseStatus(value = HttpStatus.BAD_REQUEST, reason = "Illegal arguments")
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@ExceptionHandler(IllegalArgumentException.class)
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public void illegalArgument() {
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}
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@GetMapping(value = "/unauthorized")
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public ResponseEntity<Mono<String>> unathorized() {
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return ResponseEntity
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.status(HttpStatus.UNAUTHORIZED)
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.header("X-Reason", "user-invalid")
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.body(Mono.just("unauthorized"));
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}
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@Bean
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public RouterFunction<ServerResponse> notFound() {
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return RouterFunctions.route(GET("/statuses/not-found"), request -> ServerResponse
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.notFound()
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.build());
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}
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}
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@ -0,0 +1,12 @@
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package com.baeldung.spring.responsestatus;
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import org.springframework.boot.SpringApplication;
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import org.springframework.boot.autoconfigure.SpringBootApplication;
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@SpringBootApplication
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public class SpringResponseStatusApp {
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public static void main(String[] args) {
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SpringApplication.run(SpringResponseStatusApp.class, args);
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}
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}
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@ -0,0 +1,70 @@
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package com.baeldung.spring.responsestatus;
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import org.junit.Test;
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import org.junit.runner.RunWith;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.boot.test.context.SpringBootTest;
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import org.springframework.test.context.junit4.SpringRunner;
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import org.springframework.test.web.reactive.server.WebTestClient;
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@RunWith(SpringRunner.class)
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@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
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public class ResponseStatusControllerTests {
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@Autowired
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private WebTestClient testClient;
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@Test
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public void whenCallRest_thenStatusIsOk() {
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testClient.get()
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.uri("/statuses/ok")
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.exchange()
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.expectStatus()
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.isOk();
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}
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@Test
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public void whenCallRest_thenStatusIsNoContent() {
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testClient.get()
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.uri("/statuses/no-content")
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.exchange()
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.expectStatus()
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.isNoContent();
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}
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@Test
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public void whenCallRest_thenStatusIsAccepted() {
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testClient.get()
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.uri("/statuses/accepted")
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.exchange()
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.expectStatus()
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.isAccepted();
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}
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@Test
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public void whenCallRest_thenStatusIsBadRequest() {
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testClient.get()
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.uri("/statuses/bad-request")
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.exchange()
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.expectStatus()
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.isBadRequest();
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}
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@Test
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public void whenCallRest_thenStatusIsUnauthorized() {
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testClient.get()
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.uri("/statuses/unauthorized")
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.exchange()
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.expectStatus()
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.isUnauthorized();
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}
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@Test
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public void whenCallRest_thenStatusIsNotFound() {
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testClient.get()
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.uri("/statuses/not-found")
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.exchange()
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.expectStatus()
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.isNotFound();
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}
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}
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