@Configuration
@EnableAsync //啟用異步任務(wù)
public class ThreadConfig {
    @Bean
    public ThreadPoolTaskExecutor executor(){
        ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
          //配置核心線程數(shù)
        executor.setCorePoolSize(15);
          //配置最大線程數(shù)
        executor.setMaxPoolSize(30);
          //配置隊列大小
        executor.setQueueCapacity(1000);
          //線程的名稱前綴
        executor.setThreadNamePrefix("Executor-");
          //線程活躍時間（秒）
        //executor.setKeepAliveSeconds(60);
          //等待所有任務(wù)結(jié)束后再關(guān)閉線程池
        executor.setWaitForTasksToCompleteOnShutdown(true);
          //設(shè)置拒絕策略
        //executor.setRejectedExecutionHandler(new ThreadPoolExecutor.CallerRunsPolicy());
          //執(zhí)行初始化
        executor.initialize();
        return executor;
    }
}

@Configuration
@EnableAsync
public class ExecutorConfig {

   @Value("${thread.maxPoolSize}")
   private Integer maxPoolSize;
   @Value("${thread.corePoolSize}")
   private Integer corePoolSize;
   @Value("${thread.keepAliveSeconds}")
   private Integer keepAliveSeconds;
   @Value("${thread.queueCapacity}")
   private Integer queueCapacity;
   @Bean
   public ThreadPoolTaskExecutor asyncExecutor(){
      ThreadPoolTaskExecutor taskExecutor=new ThreadPoolTaskExecutor();
      taskExecutor.setCorePoolSize(corePoolSize);//核心數(shù)量
      taskExecutor.setMaxPoolSize(maxPoolSize);//最大數(shù)量
      taskExecutor.setQueueCapacity(queueCapacity);//隊列
      taskExecutor.setKeepAliveSeconds(keepAliveSeconds);//存活時間
      taskExecutor.setWaitForTasksToCompleteOnShutdown(true);//設(shè)置等待任務(wù)完成后線程池再關(guān)閉
      taskExecutor.setRejectedExecutionHandler(new ThreadPoolExecutor.CallerRunsPolicy());//設(shè)置拒絕策略
      taskExecutor.initialize();//初始化
      return taskExecutor;
   }
}

#線程池
thread:
  corePoolSize: 5
  maxPoolSize: 10
  queueCapacity: 100
  keepAliveSeconds: 3000

package com.demo;
 
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.scheduling.annotation.EnableAsync;
 
//開啟異步注解功能
@EnableAsync
@SpringBootApplication
public class SpringbootTaskApplication {
 
    public static void main(String[] args) {
        SpringApplication.run(SpringbootTaskApplication.class, args);
    }
 
}

List<List<DistributedPredictDTO>> partition = Lists.partition(userList, userList.size() / 7);
        for (List<DistributedPredictDTO> distributedPredictDTOS : partition) {
　　　　　　　//調(diào)用異步方法
            threadService.getI(beginDate, endDate, tableName, distributedPredictDTOS, hMap, i);
        }

@Slf4j
@Service
public class ThreadServiceImpl {
    @Resource
    ResourcePoolUrlProperties properties;
    @Resource
    private MonitorDao monitorDao;
    @Async
    Integer getI(String beginDate, String endDate, String tableName, List<DistributedPredictDTO> userList, Map<String, String> hMap, int i) {
        log.info("我開始執(zhí)行");
        for (DistributedPredictDTO e : userList) {
            String responseStr;
            HashMap<String, String> pMap = Maps.newHashMap();
            pMap.put("scheduleId", e.getScheduleId());
            pMap.put("scheduleName", e.getScheduleName());
            pMap.put("distribsunStationId", e.getLabel());
            pMap.put("distribsunStationName", e.getValue());
            pMap.put("beginTime", beginDate);
            pMap.put("endTime", endDate);
            try {
                if ("180".equals(properties.getNewPowerSys().getDistributedPredictUrl().substring(17, 20))) {
                    pMap = null;
                }
                responseStr = HttpClientUtil.doPost(properties.getNewPowerSys().getDistributedPredictUrl(), hMap, pMap);
            } catch (Exception exception) {
                throw new RuntimeException(e.getValue() + "的功率預(yù)測接口異常" + hMap + pMap);
            }
            if (org.springframework.util.StringUtils.isEmpty(responseStr)) {
                log.info(e + "數(shù)據(jù)為空");
                continue;
            }
            JSONObject resJson = JSONObject.parseObject(responseStr);
            JSONObject obj = (JSONObject) resJson.get("obj");
            JSONArray tableData = (JSONArray) obj.get("tabledata");

            final List<DistributedUserPower> userPowers = Lists.newArrayList();
            for (Object o : tableData) {
                final DistributedUserPower distributedUserPower = new DistributedUserPower();
                distributedUserPower.setData(((JSONObject) o).get("data").toString());
                distributedUserPower.setData2(((JSONObject) o).get("data2").toString());
                distributedUserPower.setDataTime(((JSONObject) o).get("time").toString());
                distributedUserPower.setUserId(e.getLabel());
                distributedUserPower.setUserName(e.getValue());
                distributedUserPower.setAreaName(e.getScheduleName());
                distributedUserPower.setCreateTime(DateUtils.getDate());
                userPowers.add(distributedUserPower);
            }
            monitorDao.saveBatch(userPowers, tableName);
            i++;
        }
        return i;
    }