BAEL-4107: Spring MVC Async vs Spring WebFlux
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# Files #
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*.log
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*.log
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*.ipr
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package com.baeldung.spring.asyncvsflux;
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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 AsyncVsWebFluxApp {
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public static void main(String[] args) {
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SpringApplication.run(AsyncVsWebFluxApp.class, args);
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}
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}
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package com.baeldung.spring.asyncvsflux;
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import java.time.Duration;
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import org.springframework.http.server.reactive.ServerHttpRequest;
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import org.springframework.web.bind.annotation.GetMapping;
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import org.springframework.web.bind.annotation.RestController;
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import reactor.core.publisher.Mono;
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@RestController
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public class WebFluxController {
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@GetMapping("/flux_result")
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public Mono<String> getResult(ServerHttpRequest request) {
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return Mono.defer(() -> Mono.just("Result is ready!"))
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.delaySubscription(Duration.ofMillis(500));
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}
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}
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package com.baeldung.spring.asyncvsflux;
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import java.time.Duration;
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import org.springframework.stereotype.Component;
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import org.springframework.web.server.ServerWebExchange;
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import org.springframework.web.server.WebFilterChain;
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import reactor.core.publisher.Mono;
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@Component
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public class WebFluxFilter implements org.springframework.web.server.WebFilter {
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@Override
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public Mono<Void> filter(ServerWebExchange serverWebExchange, WebFilterChain webFilterChain) {
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return Mono
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.delay(Duration.ofMillis(200))
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.then(
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webFilterChain.filter(serverWebExchange)
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);
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}
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}
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package com.baeldung.asyncvsflux;
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import java.util.concurrent.CompletableFuture;
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import javax.servlet.http.HttpServletRequest;
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import org.springframework.scheduling.annotation.Async;
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import org.springframework.web.bind.annotation.GetMapping;
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import org.springframework.web.bind.annotation.RestController;
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@RestController
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public class AsyncController {
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@GetMapping("/async_result")
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@Async
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public CompletableFuture<String> getResultAsyc(HttpServletRequest request) {
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try {
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Thread.sleep(500);
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} catch (InterruptedException e) {
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e.printStackTrace();
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}
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return CompletableFuture.completedFuture("Result is ready!");
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}
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}
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package com.baeldung.asyncvsflux;
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import java.io.IOException;
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import javax.servlet.Filter;
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import javax.servlet.FilterChain;
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import javax.servlet.FilterConfig;
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import javax.servlet.ServletException;
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import javax.servlet.ServletRequest;
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import javax.servlet.ServletResponse;
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import org.springframework.stereotype.Component;
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@Component
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public class AsyncFilter implements Filter {
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@Override
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public void init(FilterConfig filterConfig) throws ServletException {
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}
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@Override
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public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
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try {
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Thread.sleep(200);
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} catch (InterruptedException e) {
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e.printStackTrace();
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}
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filterChain.doFilter(servletRequest, servletResponse);
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}
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@Override
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public void destroy() {
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}
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}
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package com.baeldung.asyncvsflux;
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import org.springframework.boot.SpringApplication;
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import org.springframework.boot.autoconfigure.SpringBootApplication;
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import org.springframework.scheduling.annotation.EnableAsync;
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@SpringBootApplication
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@EnableAsync
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public class AsyncVsWebFluxApp {
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public static void main(String[] args) {
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SpringApplication.run(AsyncVsWebFluxApp.class, args);
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}
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}
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