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Jarrett
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Nov 10, 2024
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24 changes: 24 additions & 0 deletions
24
src/main/java/com/jiaruiblog/util/network/InternetConnectionChecker.java
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Original file line number | Diff line number | Diff line change |
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package com.jiaruiblog.util.network; | ||
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import java.net.InetAddress; | ||
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public class InternetConnectionChecker { | ||
public static boolean isInternetAvailable() { | ||
try { | ||
// 尝试解析 Google 的域名 | ||
InetAddress address = InetAddress.getByName("github.com"); | ||
// 如果能返回地址,说明可以连接到互联网 | ||
return address.isReachable(2000); // 超时设置为 2 秒 | ||
} catch (Exception e) { | ||
return false; // 出现异常说明无法连接互联网 | ||
} | ||
} | ||
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public static void main(String[] args) { | ||
if (isInternetAvailable()) { | ||
System.out.println("Can connect to the Internet."); | ||
} else { | ||
System.out.println("Cannot connect to the Internet."); | ||
} | ||
} | ||
} |
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