java中ExecutorService使用多线程处理业务

Posted 2022-01-14 nizuimeiabc1

ExecutorService executorService = Executors.newFixedThreadPool(5);  
  
List<CancelApprovalCallable> callables = new List<>();  
for(int i=0,len=idsArray.size();i<len;i++)
    String id = idsArray.get(i);
    CancelApprovalCallable callable = new CancelApprovalCallable(id,domain);
    callables.add(callable);

List<Future<JSONObject>> resultList = new ArrayList<>();
try
    resultList = executorService.invokeAll(callables);
catch(InterruptedException e)
    log.error("execute concurrent thread error",e);
finally
    if(!executorService.isShutdown() || !executorService.isTerminated())
        executorService.shutdown();
    


/**
*批量获取线程执行结果，循环处理每条结果数据
*/
for(Future<JSONObject> future : resultList)
    JSONObject resp2 = null;
    try
        resp2 = future.get();
    catch(Exception e)
        log.error("execute concurrent thread error",e);
    
    if(resp2 == null)
        continue;
    

class CancelApprovalCallable implements Callable<JSONbject>
        
        private String id;
        private String domain;
        CancelApprovalCallable(String id,String domain)
            this.id=id;
            this.domain = domain;
        
        /* (non-Javadoc)
         * @see java.util.concurrent.Callable#call()
         */
        @Override
        public JSObject call() throws Exception 
            
            return null;