使用Spring異步線程池

目錄

 

1.使用java配置定義線程池和啓用異步

2.異步服務接口

3.異步服務接口實現類

4.控制層調用

執行結果：

---

1.使用java配置定義線程池和啓用異步

package com.lin.demo.config;

import org.springframework.context.annotation.Configuration;
import org.springframework.scheduling.annotation.AsyncConfigurer;
import org.springframework.scheduling.annotation.EnableAsync;
import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;

import java.util.concurrent.Executor;

/**
 * 使用Java配置定義線程池和啓用異步
 * */
@Configuration
/**開異步可用*/
@EnableAsync
public class AsyncConfig implements AsyncConfigurer {

    /**定義線程池*/
    @Override
    public Executor getAsyncExecutor() {
        //定義線程池
        ThreadPoolTaskExecutor taskExecutor = new ThreadPoolTaskExecutor();
        //核心線程數
        taskExecutor.setCorePoolSize(10);
        //線程池最大線程數
        taskExecutor.setMaxPoolSize(30);
        //線程隊列最大線程數
        taskExecutor.setQueueCapacity(2000);

        //初始化
        taskExecutor.initialize();

        return taskExecutor;
    }

}

2.異步服務接口

package com.lin.demo.service;

/**
 * 異步服務接口
 * */
public interface AsyncService {
    /**
     * 模擬報表生成的異步方法
     */
    void generateReport();
}

3.異步服務接口實現類

package com.lin.demo.service.impl;

import com.lin.demo.service.AsyncService;
import org.springframework.scheduling.annotation.Async;
import org.springframework.stereotype.Service;

/**
 * 異步服務實現類
 * */
@Service
public class AsyncServiceImpl implements AsyncService {

    @Override
    /**聲明使用異步調用*/
    @Async
    public void generateReport() {
        //打印異步線程名稱
        System.out.println("報表線程名稱：" + "【" + Thread.currentThread().getName() + "】");
    }
}

4.控制層調用

package com.lin.demo.controller;

import com.lin.demo.service.AsyncService;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.annotation.Resource;

/**
 * 控制器
 * */
@RestController
public class AsyncController {

    @Resource
    private AsyncService asyncService;

    @GetMapping("/async/page")
    public String asyncPage() {
        System.out.println("請求線程名稱：" + "【" + Thread.currentThread().getName() + "】");
        //調用異步服務
        asyncService.generateReport();
        return "async";
    }
}

執行結果：