import java.util.ArrayList;

import java.util.List;

import org.apache.commons.lang.ArrayUtils;

public class Test_4 {

/**

* 多線程處理list

*

* @param data 數(shù)據(jù)list

* @param threadNum 線程數(shù)

*/

public synchronized void handleList(List data, int threadNum) {

int length = data.size();

int tl = length % threadNum == 0 ? length / threadNum : (length

/ threadNum + 1);

for (int i = 0; i < threadNum; i++) {

int end = (i + 1) * tl;

HandleThread thread = new HandleThread("線程[" + (i + 1) + "] ", data, i * tl, end > length ? length : end);

thread.start();

}

}

class HandleThread extends Thread {

private String threadName;

private List data;

private int start;

private int end;

public HandleThread(String threadName, List data, int start, int end) {

this.threadName = threadName;

this.data = data;

this.start = start;

this.end = end;

}

public void run() {

//這里處理數(shù)據(jù)

List subList = data.subList(start, end);

for(int a=0; a

System.out.println(threadName+"處理了 "+subList.get(a)+" ！");

//System.out.println(threadName+"處理了"+subList.size()+"條！");

}

}

}

public static void main(String[] args) {

Test_4 test = new Test_4();

// 準(zhǔn)備數(shù)據(jù)

List data = new ArrayList();

for (int i = 0; i < 1517; i++) {

data.add("item" + i);

}

test.handleList(data, 6);

System.out.println(ArrayUtils.toString(data));

}

}

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