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fix: UnknownHostException in SnowFlakeIDKeyGenerator.java

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This commit is contained in:
Michael Yang 2024-07-31 10:09:49 +08:00
parent 74b820b9c3
commit 526a7a80b7
1 changed files with 4 additions and 5 deletions
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9
mybatis-flex-core/src/main/java/com/mybatisflex/core/keygen/impl/SnowFlakeIDKeyGenerator.java
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@ -18,6 +18,7 @@ package com.mybatisflex.core.keygen.impl;
import com.mybatisflex.core.exception.FlexExceptions; import com.mybatisflex.core.exception.FlexExceptions;
import com.mybatisflex.core.keygen.IKeyGenerator; import com.mybatisflex.core.keygen.IKeyGenerator;
import com.mybatisflex.core.util.StringUtil; import com.mybatisflex.core.util.StringUtil;
import org.apache.ibatis.logging.LogFactory;
import java.lang.management.ManagementFactory; import java.lang.management.ManagementFactory;
import java.net.InetAddress; import java.net.InetAddress;
@ -163,15 +164,13 @@ public class SnowFlakeIDKeyGenerator implements IKeyGenerator {
* 根据网卡 MAC 地址计算余数作为数据中心 ID。 * 根据网卡 MAC 地址计算余数作为数据中心 ID。
*/ */
protected long getDataCenterId(long maxDataCenterId) { protected long getDataCenterId(long maxDataCenterId) {
long id = 0L; long id = 1L;
try { try {
if (address == null) { if (address == null) {
address = InetAddress.getLocalHost(); address = InetAddress.getLocalHost();
} }
NetworkInterface network = NetworkInterface.getByInetAddress(address); NetworkInterface network = NetworkInterface.getByInetAddress(address);
if (null == network) { if (null != network) {
id = 1L;
} else {
byte[] mac = network.getHardwareAddress(); byte[] mac = network.getHardwareAddress();
if (null != mac) { if (null != mac) {
id = ((0x000000FF & (long) mac[mac.length - 2]) | (0x0000FF00 & (((long) mac[mac.length - 1]) << 8))) >> 6; id = ((0x000000FF & (long) mac[mac.length - 2]) | (0x0000FF00 & (((long) mac[mac.length - 1]) << 8))) >> 6;
@ -179,7 +178,7 @@ public class SnowFlakeIDKeyGenerator implements IKeyGenerator {
} }
} }
} catch (Exception e) { } catch (Exception e) {
throw FlexExceptions.wrap(e, "dataCenterId: %s", e.getMessage()); LogFactory.getLog(SnowFlakeIDKeyGenerator.class).error(e.toString(), e);
} }
return id; return id;
} }