ios for循环多线程 for循环多线程执行

1. 开启线程执行for循环

//开启线程执行for循环
List<CusDtbAndRecycleParmas> outParamsList = new Vector<CusDtbAndRecycleParmas>();

2. 组装for循环中所需参数

//入参
Map<String,Object> inparams = new HashMap<String,Object>();
inparams.put("out",outParamsList);
inparams.put("coreInfoMap",coreInfoMap);
inparams.put("custUidMap",custUidMap);
inparams.put(BBK_ORG_ID,bbkOrgId);
inparams.put("grpCdParam",grpCdParam);
inparams.put("cardLvlCdMap",cardLvlCdMap);
inparams.put("RoleCodeMap",RoleCodeMap);
inparams.put("userNmMap",userNmMap);
inparams.put("markInfoMap",markInfoMap);

3.开始执行for循环

CallableBean callableBeanOut = new CallableBean(this,"loopOutParams", CallType.TWO,inparams);
ConcurrentUtil.processForNoRst(callableBeanOut, mainAccountList);

4.for循环执行方法 loopOutParanms 示例

public int loopOutParams(CallableBean callableBean,Object paramsObj) throws Exception{
		String custUid = "";
		String orgCardNbr = "";

		DecimalFormat df = new DecimalFormat("0.00");    //转换为两位小数结尾

		Map<String , String> mapInParmas = new HashMap<String, String>();

		CusDtbAndRecycleParmas curParam = (CusDtbAndRecycleParmas) paramsObj;
		CusDtbAndRecycleParmas tmpParam = curParam;

		Map<String,Object> inparams = (Map<String,Object>)callableBean.getInParams();
        List<CusDtbAndRecycleParmas> resultList = (List<CusDtbAndRecycleParmas>) inparams.get("out");
		Map<String,CusDtbAndRecycleParmas> markInfoMap = (Map<String, CusDtbAndRecycleParmas>) inparams.get("markInfoMap");
		Map<String,CusDtbAndRecycleParmas> coreInfoMap = (Map<String, CusDtbAndRecycleParmas>) inparams.get("coreInfoMap");
		Map<String,List<String>> custUidMap = (Map<String, List<String>>) inparams.get("custUidMap");
		Map<String, String> grpCdParam = (Map<String, String>) inparams.get("grpCdParam");
		Map<String, String> cardLvlCdMap = (Map<String, String>) inparams.get("cardLvlCdMap");
		Map<String, String> RoleCodeMap = (Map<String, String>) inparams.get("RoleCodeMap");
		Map<String, String> userNmMap = (Map<String, String>) inparams.get("userNmMap");
		String bbkOrgId = (String)inparams.get(BBK_ORG_ID);


		custUid = curParam.getCustUid();
		orgCardNbr = curParam.getCusCardNbr();
		String cardGrdCd = curParam.getCardGrdCd();

		mapInParmas.put("custUid", custUid);
		if(coreInfoMap.containsKey(curParam.getCustUid())) {
			CusDtbAndRecycleParmas coreInfoParam = coreInfoMap.get(curParam.getCustUid());
			//初始化tmpParam
			tmpParam.setCustNm(coreInfoParam.getCustNm());
			tmpParam.setSex(coreInfoParam.getSex());
			tmpParam.setMonthAss(coreInfoParam.getMonthAss() != null ? coreInfoParam.getMonthAss() : "0.00");
			tmpParam.setTimeAss(coreInfoParam.getTimeAss() != null ? coreInfoParam.getTimeAss() : "0.00");
			tmpParam.setThirdAss(coreInfoParam.getThirdAss() != null ? coreInfoParam.getThirdAss() : "0.00") ;
			tmpParam.setDayAcsMmkv(coreInfoParam.getDayAcsMmkv() != null ? coreInfoParam.getDayAcsMmkv() : "0.00");
			tmpParam.setDayAcsTmkv(coreInfoParam.getDayAcsTmkv() != null ? coreInfoParam.getDayAcsTmkv() : "0.00");
			tmpParam.setLastMonthAcsMmkv(coreInfoParam.getLastMonthAcsMmkv() != null ? coreInfoParam.getLastMonthAcsMmkv() : "0.00");
			tmpParam.setLastMonthAcsTmkv(coreInfoParam.getLastMonthAcsTmkv() != null ? coreInfoParam.getLastMonthAcsTmkv() : "0.00");
		}

		List<String> subList = custUidMap.get(custUid);
		if(!subList.isEmpty()) {
		
    ....

		resultList.add(tmpParam);

		return 1;
	}

4.线程基础类 BaseCallable

package com.cmb.dw.rtl.utils.concurrent;

import org.apache.log4j.Logger;

import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.concurrent.Callable;

/**线程基础类
 */
public class BaseCallable  implements Callable {

    private static final Logger LOGGER = Logger.getLogger(BaseCallable.class);

    private CallableBean callableBean;              //callable 调用bean
    private Object paramsObj;                             //for循环list中单个对象

    public BaseCallable(CallableBean callableBean) {
        this.callableBean = callableBean;
    }

    public BaseCallable(CallableBean callableBean, Object paramsObj) {
        this.callableBean = callableBean;
        this.paramsObj = paramsObj;
    }

    @Override
    public Object call()throws NoSuchMethodException,IllegalAccessException,InvocationTargetException{
        Object callObj = callableBean.getCallCls();
        String methodNm = callableBean.getMethodNm();
        CallType callType = callableBean.getCallType();

        LOGGER.info("调用callable开始,调用类：" + callObj + "调用方法" + methodNm + "调用类型" + callType);

        long begin = System.currentTimeMillis();

        Object result = null;
        Method method;

        switch(callType){

            case ONE:
                method = callObj.getClass().getMethod(methodNm,CallableBean.class);
                result = method.invoke(callObj,callableBean);
                break;

            case TWO:
                method = callObj.getClass().getMethod(methodNm,CallableBean.class,Object.class);
                result = method.invoke(callObj,callableBean,paramsObj);
                break;

            default:
                break;
        }

        long end = System.currentTimeMillis();
        LOGGER.info("调用callable结束,用时" + (end - begin) + "ms");

        return result;
    }

}

5. 并发框架工具

import com.cmb.framework.core.container.SpringContainer;
import org.apache.log4j.Logger;
import org.springframework.core.task.TaskExecutor;

import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.FutureTask;

/**并发框架工具
 */
public class ConcurrentUtil {

    private static final Logger LOGGER = Logger.getLogger(ConcurrentUtil.class);
    private static TaskExecutor taskExecutor = null;

    static {
        getTaskExecutor();
    }

    /**
     * 获取线程池
     *
     * @return
     */
    private static TaskExecutor getTaskExecutor() {
        if (null == taskExecutor) {
            taskExecutor = (TaskExecutor) SpringContainer.getBean("taskExecutor");
        }

        return taskExecutor;
    }

    /**
     * 需要结果
     * @param callList      callable 的list
     * @return
     * @throws ExecutionException
     * @throws InterruptedException
     */
    public static List<Object> processForRst(List<CallableBean> callList) throws ExecutionException,InterruptedException{
        List<FutureTask> futureTaskList = new ArrayList<FutureTask>();
        for(CallableBean callableBean : callList){
            BaseCallable baseCallable = new BaseCallable(callableBean);
            FutureTask futureTask = new FutureTask(baseCallable);
            taskExecutor.execute(futureTask);
            futureTaskList.add(futureTask);
        }
        List<Object> rstList = new ArrayList<Object>();
        for(FutureTask futureTask : futureTaskList){
            Object result = futureTask.get();
            rstList.add(result);
        }
        return rstList;
    }

    /**
     * 直接调用获取结果，可以日志使用
     * @param callableBean
     * @return
     * @throws ExecutionException
     * @throws InterruptedException
     */
    public static Object process(CallableBean callableBean) throws ExecutionException,InterruptedException{
        BaseCallable baseCallable = new BaseCallable(callableBean);
        FutureTask futureTask = new FutureTask(baseCallable);
        taskExecutor.execute(futureTask);
        return futureTask.get();
    }

    /**不需要结果
     * for循环使用
     * @param callableBean          基础类
     * @param list                  for循环的list
     * @param <T>                   list类的类型
     * @throws ExecutionException
     * @throws InterruptedException
     */
    public static <T> void processForNoRst(CallableBean callableBean, List<T> list)  throws ExecutionException,InterruptedException{

        List<FutureTask<Object>> futureTaskList = new ArrayList<FutureTask<Object>>();
        for (final T t : list) {

            BaseCallable baseCallable = new BaseCallable(callableBean, t);
            FutureTask futureTask = new FutureTask(baseCallable);
            taskExecutor.execute(futureTask);
            futureTaskList.add(futureTask);
        }

        for (FutureTask futureTask : futureTaskList) {
            //futureTask.get(3000, TimeUnit.MILLISECONDS); TimeoutException
            futureTask.get();
        }

    }
}

5. callable 调用 bean

/**callable 调用bean
 */
public class CallableBean {

    private Object callCls;         //调用类，比如service
    private String methodNm;        //调用类的方法
    private CallType callType;      //调用方法的类型  枚举器 CallType.java
    private Object inParams;        //调用方法入参

    public CallableBean(Object callCls, String methodNm, CallType callType, Object inParams) {
        this.callCls = callCls;
        this.methodNm = methodNm;
        this.callType = callType;
        this.inParams = inParams;
    }

    public Object getCallCls() {
        return callCls;
    }

    public void setCallCls(Object callCls) {
        this.callCls = callCls;
    }

    public String getMethodNm() {
        return methodNm;
    }

    public void setMethodNm(String methodNm) {
        this.methodNm = methodNm;
    }

    public CallType getCallType() {
        return callType;
    }

    public void setCallType(CallType callType) {
        this.callType = callType;
    }

    public Object getInParams() {
        return inParams;
    }

    public void setInParams(Object inParams) {
        this.inParams = inParams;
    }
}

6. callable 调用类型(枚举)

/**callable 调用类型 枚举器
 */
public enum CallType {

    ONE,    //使用一个线程
    TWO,    //for循环中每个循环使用一个线程
    THREE,
    FOUR
}