标签：mEndLock String int Spring private Alibaba ip public Cloud

网盘download:Spring Cloud Alibaba 大型互联网领域多场景最佳实践

聚焦Spring Cloud Alibaba，深入剖析5大核心组件原理，并结合真实电商微服务架构，讲透框架在多场景下的最佳实践，助力全面提升微服务实战能力，轻松应对微服务领域的各种技术难题。

技术适合人群要求
熟悉java web开发、会使用maven 和spring框架
对于springboot 有一定的了解
技术储备要求
Jdk 1.8、Spring Cloud Hoxton.SR8、Spring Cloud Hoxton.SR8、Springcloud Hoxton.SR8
SpringCloudAlibaba 2.2.5 RELEASE、Nacos 1.4.1、Sentinel 1.8.0
import java.io.IOException;
import java.net.InetAddress;
import java.net.UnknownHostException;
/**

• Created by QiuJU
• on 2014/9/21.
  */
  public class SimplePing implements Runnable {
  private final Object mEndLock = new Object();
  private boolean IsEnd = false;
  private int arrivedCount = 0;
  private int Count;
  private int TimeOut;
  private String Name;
  private int mEndCount;
  private String mIp = null;
  private float mLo***ate = 1f;
  private float mDelay = 0;
  public SimplePing(String name, int count, int timeOut) {
  Count = mEndCount = count;
  TimeOut = timeOut;
  Name = name;
  for (int i = 0; i < mEndCount; i++) {
  Thread thread = new Thread(this);
  thread.setDaemon(true);
  thread.start();
  }
  if (!IsEnd) {
  try {
  synchronized (mEndLock) {
  mEndLock.wait();
  }
  } catch (InterruptedException e) {
  e.printStackTrace();
  }
  }
  }
  private void setEnd(boolean isArrived, long delay, String ip) {
  synchronized (mEndLock) {
  Count--;
  if (isArrived) {
  arrivedCount++;
  mDelay = (mDelay + delay) / 2f;
  if (ip != null)
  mIp = ip;
  }
  }
  if (Count == 0)
  setEnd();
  }
  private void setEnd() {
  mLo***ate = (mEndCount - arrivedCount) / mEndCount;
  IsEnd = true;
  synchronized (mEndLock) {br/>mEndLock.notifyAll();
  }
  }
  @Override
  public void run() {
  long delay = 0;
  boolean isArrived = false;
  String ip = null;
  try {
  long startTime = System.currentTimeMillis();
  InetAddress address = InetAddress.getByName(Name);
  isArrived = address.isReachable(TimeOut);
  delay = System.currentTimeMillis() - startTime;
  ip = address.getHostAddress();
  } catch (UnknownHostException e) {
  e.printStackTrace();
  } catch (IOException e) {
  e.printStackTrace();
  } catch (Exception e) {
  e.printStackTrace();
  } finally {
  setEnd(isArrived, delay, ip);
  }
  }
  public String getIp() {
  return mIp;
  }
  public float getLo***ate() {
  return mLo***ate;
  }
  public float getDelay() {
  return mDelay;
  }
  public boolean getIsSucceed() {
  return arrivedCount > 0;
  }
  }
  在类中运用的是：
  1
  2
  3
  4
  5
  long startTime = System.currentTimeMillis();
  InetAddress address = InetAddress.getByName(Name);
  isArrived = address.isReachable(TimeOut);
  delay = System.currentTimeMillis() - startTime;
  ip = address.getHostAddress();
  

标签：mEndLock,String,int,Spring,private,Alibaba,ip,public,Cloud
来源： https://blog.51cto.com/u_15200877/2830281

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