java import java.util.regex.Pattern; public class UUIDChecker { // 定义UUID的正则表达式 private static final String UUID_PATTERN = "^[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12}$"; public static boolean isValidUUID(String uuid) { /...
以下是使用Apache Commons Codec库判断UUID的示例代码: importorg.apache.commons.codec.uuid.GUID;importorg.apache.commons.codec.uuid.UUIDUtils;publicclassUUIDChecker{publicstaticbooleanisValidUUID(Stringuuid){try{newGUID(uuid);returntrue;}catch(IllegalArgumentExceptione){returnfalse;}}} 1. 2. 3. 4. 5...
A universally unique identifier (UUID) is an identifier standard used in software construction. The meaning of each bit is defined by any of several variants. It is a 128-bit value. The tool will test if your 'GUID' is in fact a GUID. You can simply ente
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group="org.checkerframework" name="checker-qual"/> <trusted-key id="1A55F091AD28C07F831FA44D7905DE25C78AD456" group="com.google.protobuf"/> <trusted-key id="1BD97A6A154E7810EE0BC832E2F38302C8075E3D"> <trusting group="org.gradle.toolchains" name="foojay-resolver" version="0...
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NOTE: This screenshot is just an advanced usage example for the-Doption, which you do not have to use! You do not need to use Firefox or change any proxy settings in order to use thessh-uuidorscp-uuidtools. Installation Clone this repo and create a couple of soft links as follows: ...
这笔自己编写查询要快而且简单。另外也可以使用Percona Toolkit中的pt-duplicate-key-checker,该工具通过分析表结构来找出冗余和重复的索引。对于大型服务器来说,使用外部的工具可能更合适些;如果服务器上有大量的数据或者大量的表,查询INFORMATION_SCHEMA表可能会导致性能问题。