package main.java.com.crm.test;
import java.io.IOException;
import java.util.concurrent.CountDownLatch;
import main.java.com.crm.testScript.leads.NormalAssign;
public class LatchTest {
public static void main(String[] args) throws InterruptedException {
Runnable taskTemp = new Runnable() {
// 注意,此处是非线程安全的,留坑
private int iCounter;
@Override
public void run() {
for(int i = 0; i < 10; i++) {
// 发起请求
System.out.println("分配的销售:"+i);
NormalAssign normalAssign = new NormalAssign();
try {
normalAssign.normalAssign("010", "100", "3", 1,1500L+i);
} catch (UnsupportedOperationException | IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
iCounter++;
System.out.println(System.nanoTime() + " [" + Thread.currentThread().getName() + "] iCounter = " + iCounter);
try {
Thread.sleep(100);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
};
LatchTest latchTest = new LatchTest();
latchTest.startTaskAllInOnce(5, taskTemp);
}
public long startTaskAllInOnce(int threadNums, final Runnable task) throws InterruptedException {
final CountDownLatch startGate = new CountDownLatch(1);
final CountDownLatch endGate = new CountDownLatch(threadNums);
for(int i = 0; i < threadNums; i++) {
Thread t = new Thread() {
public void run() {
try {
// 使线程在此等待,当开始门打开时,一起涌入门中
startGate.await();
try {
task.run();
} finally {
// 将结束门减1,减到0时,就可以开启结束门了
endGate.countDown();
}
} catch (InterruptedException ie) {
ie.printStackTrace();
}
}
};
t.start();
}
long startTime = System.nanoTime();
System.out.println(startTime + " [" + Thread.currentThread() + "] All thread is ready, concurrent going...");
// 因开启门只需一个开关,所以立马就开启开始门
startGate.countDown();
// 等等结束门开启
endGate.await();
long endTime = System.nanoTime();
System.out.println(endTime + " [" + Thread.currentThread() + "] All thread is completed.");
return endTime - startTime;
}
}
原文:https://www.cnblogs.com/yuyanhzao/p/10877135.html