多任务派发线程处理示例supplyAsync

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package com.cytc.test;   import java.util.ArrayList; import java.util.List; import java.util.Random; import java.util.concurrent.CompletableFuture; import java.util.concurrent.LinkedBlockingQueue; import java.util.concurrent.ThreadPoolExecutor; import java.util.concurrent.TimeUnit; import java.util.stream.Collectors;   public class T7 {     public static void main(String[] args) {         List<List<String>> groupedIdList = new ArrayList<>();         List<String> temp1 = new ArrayList<>();         temp1.add("123");         List<String> temp2 = new ArrayList<>();         temp2.add("456");         groupedIdList.add(temp1);         groupedIdList.add(temp2);           List<CompletableFuture<List<String>>> futureList = groupedIdList.stream()                 .map(taskData -> CompletableFuture.supplyAsync(() -> queryTyGroupList(taskData),                         new ThreadPoolExecutor(100, 500, 10L, TimeUnit.SECONDS, new LinkedBlockingQueue(500))))                 .collect(Collectors.toList());         // 确保所有的任务完成         List<List<String>> resultBeanList = futureList.stream().map(CompletableFuture::join).collect(Collectors.toList());         System.out.println("******************* all tasks handle done**********************");         resultBeanList.forEach(c->{             System.out.println(c);         });     }       private static List<String> queryTyGroupList(List<String> codeList) {         codeList.forEach(code -> {             code = code + " handle data";             System.out.println(code);             try {                 Thread.sleep(new Random().nextInt(1000));             } catch (InterruptedException e) {                 throw new RuntimeException(e);             }         });         codeList.add(" new data.. ");         return codeList;     } }