Java多线程执行处理业务时间太久解决方法代码示例

List<Map<String,Object>> list = (List<Map<String, Object>>) map.get("rows");int taskSize = 20;// 创建一个线程池ExecutorService pool = Executors.newFixedThreadPool(taskSize);// 创建多个有返回值的任务 List<Future> listFuture = new ArrayList<Future>();for (int i = 0; i < taskSize; i++) {	System.out.println("我启用多线程啦啦啦");	int evgCount = list.size()/taskSize;	Callable c = new MyCallable(list.subList(evgCount*i, evgCount*(i+1)),session,staticFlag,	declareService,declareMasterService,enterpriseQueryService);	// 执行任务并获取Future对象	Future f = pool.submit(c);	listFuture.add(f);}pool.shutdown();// 获取所有并发任务的运行结果 List<Map<String, Object>> listResult = new ArrayList<Map<String, Object>>();for (Future f : listFuture) {	List<Map<String, Object>> listModel = new ArrayList<Map<String, Object>>();	try {		listModel = (List<Map<String, Object>>) f.get();	}	catch (InterruptedException e) {		e.printStackTrace();	}	catch (ExecutionException e) {		e.printStackTrace();	}	listResult.addAll(listModel);}map.put("rows", listResult);

package usi.jszx.controller;import java.util.List;import java.util.Map;import java.util.concurrent.Callable;import javax.servlet.http.HttpSession;import org.apache.commons.lang3.StringUtils;import usi.jszx.entity.ScoreMain;import usi.jszx.service.DeclareMasterService;import usi.jszx.service.DeclareService;import usi.jszx.service.EnterpriseQueryService;import usi.sys.dto.AuthInfo;import usi.sys.util.ConstantUtil;class MyCallable implements Callable<Object> {	//-----------------以下为线程调用的方法----------------	private List<Map<String,Object>> list;	private HttpSession session;	private String staticFlag;	private DeclareService declareService;	private DeclareMasterService declareMasterService;	private EnterpriseQueryService enterpriseQueryService;	public MyCallable(List<Map<String,Object>> list,HttpSession session,String staticFlag,	DeclareService declareService,DeclareMasterService declareMasterService,EnterpriseQueryService enterpriseQueryService) {		this.list = list;		this.session = session;		this.staticFlag = staticFlag;		this.declareService = declareService;		this.declareMasterService = declareMasterService;		this.enterpriseQueryService = enterpriseQueryService;	}	@Override	public Object call() throws Exception {		AuthInfo info = (AuthInfo)session.getAttribute(ConstantUtil.AUTH_INFO);		for (int i = 0; i < list.size(); i++) {			Map<String,Object> maplist = list.get(i);			String mainId= maplist.get("ID")+"";			this.gradeMaster(session, mainId, maplist.get("orgId")+"",declareMasterService,enterpriseQueryService);			List<Map<String,Object>> listscore = declareMasterService.queryScoreMain(maplist.get("ID")+"",info.getRightType(), "report");			// declareMasterService.queryScoreMain(mainId,info.getRightType(),isreport);			int isdouble = 1;			if(listscore.size()>30){				maplist.put("SOCRETOTAL", listscore.get(46).get("SCORE"));				isdouble = 2;			} else if(listscore.size()>22){				maplist.put("SOCRETOTAL", listscore.get(23).get("SCORE"));			}			if("3".equals(staticFlag)){				for (int j = 0; j < 23; j++) {					if(j<9){						maplist.put("VALUE0"+(j+1), listscore.get(j*isdouble).get("SHOW_VALUE"));					} else{						maplist.put("VALUE"+(j+1), listscore.get(j*isdouble).get("SHOW_VALUE"));					}				}			}			//地市展示			String COUNTYID = maplist.get("COUNTYID")+"";			if("340826".equals(COUNTYID)||"341822".equals(COUNTYID)){				maplist.put("CITYNAME",maplist.get("COUNTYNAME")+"");			}			//企业类型			String DECLARE_EVALUATE = maplist.get("DECLARE_EVALUATE")+"";			if("1".equals(DECLARE_EVALUATE)){				maplist.put("DECLARE_EVALUATE_NAME","申报");			} else{				maplist.put("DECLARE_EVALUATE_NAME","评价");			}			//审核状态			String SHSTATUS = maplist.get("SHSTATUS")+"";			if("9".equals(SHSTATUS)){				maplist.put("STRSHSTATUS", "草稿");			} else if("0".equals(SHSTATUS)){				maplist.put("STRSHSTATUS", "企业提交");			} else if("1".equals(SHSTATUS)){				maplist.put("STRSHSTATUS", "市审核通过");			} else if("2".equals(SHSTATUS)){				maplist.put("STRSHSTATUS", "市审核不通过");			} else if("3".equals(SHSTATUS)){				maplist.put("STRSHSTATUS", "省审核通过");			} else if("4".equals(SHSTATUS)){				maplist.put("STRSHSTATUS", "省审核不通过");			} else if("5".equals(SHSTATUS)){				maplist.put("STRSHSTATUS", "省级审核中");			} else if("6".equals(SHSTATUS)){				maplist.put("STRSHSTATUS", "退回企业修改");			} else if("7".equals(SHSTATUS)){				maplist.put("STRSHSTATUS", "市级审核中");			} else if("11".equals(SHSTATUS)){				maplist.put("STRSHSTATUS", "修改为申报");			} else if("12".equals(SHSTATUS)){				maplist.put("STRSHSTATUS", "修改为评价");			}			if("1".equals(staticFlag)){				//添加修改意见				List<Map<String, Object>> listDetail = declareService.queryAuditLog(mainId);				if(listDetail.size()>0){					String AUDIT_OPINION = listDetail.get(0).get("AUDIT_OPINION")+"";					if(!StringUtils.isEmpty(AUDIT_OPINION)&&!"null".equals(AUDIT_OPINION)){						maplist.put("AUDIT_OPINION", AUDIT_OPINION);					} else{						maplist.put("AUDIT_OPINION", "");					}				}				//是否更名 曾用名				String ORGNAME = maplist.get("ORGNAME")+"";				String PJNAME = maplist.get("PJNAME")+"";				if(StringUtils.isEmpty(PJNAME)||"null".equals(PJNAME)				||PJNAME.equals(ORGNAME)){					maplist.put("ISGENGMING", "否");					maplist.put("PJNAME_E", "");				} else{					maplist.put("ISGENGMING", "是");					maplist.put("PJNAME_E", PJNAME);				}			} else if("2".equals(staticFlag)){			}		}		return list;	}	public float gradeMaster(HttpSession session,String mainId,String orgId,	DeclareMasterService declareMasterService,EnterpriseQueryService enterpriseQueryService) {		AuthInfo info = (AuthInfo)session.getAttribute(ConstantUtil.AUTH_INFO);		String rightType=info.getRightType();		declareMasterService.deleteScoreMain(mainId);		float[] resultFirst = new float[100];		/** 先查询所有 附表列表* 查看得分的地方，是直接查找主表数据的* * 既然审核了，主表数据肯定存起来了* */		List<Map<String,Object>> listDetail = declareMasterService.queryTaskDetail(mainId);		if("2".equals(rightType)||"3".equals(rightType)){			//将String 转为 float			for (int i = 0; i < listDetail.size(); i++) {				Map<String,Object> map = listDetail.get(i);				if(StringUtils.isEmpty(map.get("DECLARE_CITY_VALUE")+"")				||"null".equals(map.get("DECLARE_CITY_VALUE")+"")){					resultFirst[i]=0f;				} else{					resultFirst[i] = float.parsefloat(map.get("DECLARE_CITY_VALUE")+"");				}			}		} else{			//将String 转为 float			for (int i = 0; i < listDetail.size(); i++) {				Map<String,Object> map = listDetail.get(i);				if(StringUtils.isEmpty(map.get("DECLARE_PROVINCE_VALUE")+"")				||"null".equals(map.get("DECLARE_PROVINCE_VALUE")+"")){					resultFirst[i]=0f;				} else{					resultFirst[i] = float.parsefloat(map.get("DECLARE_PROVINCE_VALUE")+"");				}			}		}		Map<String,Object> enterprise= enterpriseQueryService.getInfoByOrgId(orgId).get(0);		//根据 安徽省企业技术中心评价指标计算公式 进行算值 下一步算分		float ratio1 = 0f;		float ratio2 = 0f;		float ratio3 = 0f;		try {			ratio1 = float.parsefloat(enterprise.get("RATIO1")+"");			ratio2 = float.parsefloat(enterprise.get("RATIO2")+"");			ratio3 = float.parsefloat(enterprise.get("RATIO3")+"");		}		catch (Exception e) {		}		Map<String,Object> map = DeclareController.getValue(resultFirst,ratio1,ratio2,ratio3);		float[] resultValue = (float[]) map.get("resultValue");		float[] resultScoreValue = (float[]) map.get("resultScoreValue");		float[] resultScore = DeclareController.getScore(resultScoreValue);		float scoreTotal = 0f;		List<Map<String,Object>> listScore = declareMasterService.queryScoreDic();		for (int i = 0; i < listScore.size(); i++) {			ScoreMain scoreMain = new ScoreMain();			scoreMain.setMainId(mainId);			scoreMain.setScoreName(listScore.get(i).get("SCORE_NAME")+"");			scoreMain.setScoreUnit(listScore.get(i).get("SCORE_UNIT")+"");			scoreMain.setScoreWeight(listScore.get(i).get("SCORE_WEIGHT")+"");			scoreMain.setDisOrder(listScore.get(i).get("DIS_ORDER")+"");			scoreMain.setShowValue(resultValue[i]+"");			scoreMain.setScoreValue(resultScoreValue[i]+"");			scoreMain.setScore(resultScore[i]+"");			declareMasterService.inserScoreMain(scoreMain);			scoreTotal +=resultScore[i];		}		return scoreTotal;	}}