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ID主键生成策略新增ULID算法

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对比UUID，ULID更加简洁，更加安全，更加快速，最关键的事可排序。
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dh-free 2024-07-23 12:03:05 +08:00
parent eabd2212c7
commit b41d87da2d
1 changed files with 10 additions and 0 deletions
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mybatis-flex-core/src/test/java/com/mybatisflex/coretest/IdGenTest.java
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@ -60,10 +60,20 @@ public class IdGenTest {
int size = 100_0000; int size = 100_0000;
String[] ids = new String[size]; String[] ids = new String[size];
IKeyGenerator keyGenerator = KeyGeneratorFactory.getKeyGenerator(KeyGenerators.ulid); IKeyGenerator keyGenerator = KeyGeneratorFactory.getKeyGenerator(KeyGenerators.ulid);
long startTime = System.currentTimeMillis();
for (int i = 0; i < size; i++) { for (int i = 0; i < size; i++) {
ids[i] = (String) keyGenerator.generate(null, null); ids[i] = (String) keyGenerator.generate(null, null);
} }
long endTime = System.currentTimeMillis();
long distinctCount = Arrays.stream(ids).distinct().count(); long distinctCount = Arrays.stream(ids).distinct().count();
Assert.assertEquals(size, distinctCount); Assert.assertEquals(size, distinctCount);
// 输出性能信息
System.out.println("Time taken to generate " + size + " IDs: " + (endTime - startTime) + " ms");
System.out.println("Average time per ID: " + ((endTime - startTime) / (double) size) + " ms");
// 检查单调递增性（仅检查前后两个ID）
Assert.assertTrue("IDs should be monotonically increasing",
ids[size - 1].compareTo(ids[0]) > 0);
} }
} }