多线程任务进行保存

    public void batchInsert(List<entity> arrList){

        MultiThreadExample example = new MultiThreadExample("当前的service"); //service层传this
        example.saveDataConcurrently(arrList);

    }

import Iserveice ;
import org.springframework.beans.factory.annotation.Autowired;

import java.util.List;
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;


public class MultiThreadExample {

    @Autowired
    private final Iserveice service;

    public MultiThreadExample(Iserveice service) {
        this.service = service;
    }

    public void saveDataConcurrently(List<List<entity>> entities) {
        ExecutorService executorService = Executors.newFixedThreadPool(10); //线程数量
        for (List<entity> list : entities) {
            executorService.submit(new Callable() {
                @Override
                public String call() throws Exception {
                   //多线程要执行的逻辑 例如：保存进数据库
                   service.saveBath(list);
                    return "";
                }
            });
        }
        executorService.shutdown();
        try {
            executorService.awaitTermination(1, TimeUnit.SECONDS);
        } catch (InterruptedException e) {
            Thread.currentThread().interrupt();
            throw new RuntimeException(e);
        }
    }
}