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HexUtil.isHexNumber增加空检查（pr#1420@Gitee）

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Looly
2025-12-25 23:36:38 +08:00
parent e6054b34fe
commit 1da3acca67
2 changed files with 16 additions and 7 deletions
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3
hutool-core/src/main/java/cn/hutool/v7/core/codec/binary/HexUtil.java
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@@ -96,6 +96,9 @@ public class HexUtil extends Hex {
* @return 是否为16进制 * @return 是否为16进制
*/ */
public static boolean isHexNumber(final String value) { public static boolean isHexNumber(final String value) {
if (StrUtil.isEmpty(value)) {
return false;
}
if (StrUtil.startWith(value, '-')) { if (StrUtil.startWith(value, '-')) {
// issue#2875 // issue#2875
return false; return false;

20
hutool-core/src/test/java/cn/hutool/v7/core/util/HexUtilTest.java
View File

@@ -23,7 +23,7 @@ import org.junit.jupiter.api.Test;
import java.math.BigInteger; import java.math.BigInteger;
import java.nio.charset.StandardCharsets; import java.nio.charset.StandardCharsets;
import static org.junit.jupiter.api.Assertions.assertEquals; import static org.junit.jupiter.api.Assertions.*;
/** /**
* HexUtil单元测试 * HexUtil单元测试
@@ -59,23 +59,29 @@ public class HexUtilTest {
@Test @Test
public void isHexNumberTest() { public void isHexNumberTest() {
Assertions.assertTrue(HexUtil.isHexNumber("0")); assertTrue(HexUtil.isHexNumber("0"));
Assertions.assertTrue(HexUtil.isHexNumber("002c")); assertTrue(HexUtil.isHexNumber("002c"));
String a = "0x3544534F444"; String a = "0x3544534F444";
Assertions.assertTrue(HexUtil.isHexNumber(a)); assertTrue(HexUtil.isHexNumber(a));
// https://gitee.com/chinabugotech/hutool/issues/I62H7K // https://gitee.com/chinabugotech/hutool/issues/I62H7K
a = "0x0000000000000001158e460913d00000"; a = "0x0000000000000001158e460913d00000";
Assertions.assertTrue(HexUtil.isHexNumber(a)); assertTrue(HexUtil.isHexNumber(a));
// 错误的 // 错误的
a = "0x0000001000T00001158e460913d00000"; a = "0x0000001000T00001158e460913d00000";
Assertions.assertFalse(HexUtil.isHexNumber(a)); assertFalse(HexUtil.isHexNumber(a));
// 错误的,https://github.com/chinabugotech/hutool/issues/2857 // 错误的,https://github.com/chinabugotech/hutool/issues/2857
a = "-1"; a = "-1";
Assertions.assertFalse(HexUtil.isHexNumber(a)); assertFalse(HexUtil.isHexNumber(a));
}
@Test
public void isHexNumberTestForEmpty() {
assertFalse(HexUtil.isHexNumber(""));
assertFalse(HexUtil.isHexNumber(null));
} }
@Test @Test