基于com.google.guava 的异步回调

最新推荐文章于 2025-04-14 09:09:58 发布

原创最新推荐文章于 2025-04-14 09:09:58 发布 · 265 阅读

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文章标签：

#guava #java #spring

导包

<dependency>
    <groupId>com.google.guava</groupId>
    <artifactId>guava</artifactId>
    <version>10.0.1</version>
</dependency>

package com.async.demo.controller;

import com.google.common.util.concurrent.*;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.concurrent.*;


@RestController
@RequestMapping("/asyncDemo")
public class AsyncDemoController {

    @GetMapping("/testGuava")
    public String testGuava(){
        Callable<Boolean> callable = () -> {
            System.out.println("test guava");
            return null;
        };
        ExecutorService executor =  Executors.newFixedThreadPool(5);
        ListeningExecutorService listenableExecutorService = MoreExecutors.listeningDecorator(executor);
        ListenableFuture<Boolean> listenableFuture =  listenableExecutorService.submit(callable);
        Futures.addCallback(listenableFuture, new FutureCallback<Boolean>() {
            @Override
            public void onSuccess(Boolean aBoolean) {
                System.out.println("test ok!");
            }

            @Override
            public void onFailure(Throwable throwable) {
                System.out.println("test fail!");
            }
        }, listenableExecutorService);

        return "ok";
    }
}