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Fix issue 4162

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This commit is contained in:
ZWM 2025-11-26 17:11:18 +08:00
parent 449df10509
commit 6776ddb29d
2 changed files with 48 additions and 3 deletions
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20
hutool-core/src/main/java/cn/hutool/core/util/HexUtil.java
View File

@ -296,6 +296,20 @@ public class HexUtil {
return Integer.toHexString(value); return Integer.toHexString(value);
} }
/**
* 去除十六进制字符串的常见前缀 0x、0X、#
*
* @param s 十六进制字符串
* @return 去除前缀后的字符串
*/
private static String stripHexPrefix(String s) {
if (s == null) return null;
s = s.trim();
if (s.startsWith("0x") || s.startsWith("0X")) return s.substring(2);
if (s.startsWith("#")) return s.substring(1);
return s;
}
/** /**
* 16进制字符串转为int * 16进制字符串转为int
* *
@ -304,7 +318,7 @@ public class HexUtil {
* @since 5.7.4 * @since 5.7.4
*/ */
public static int hexToInt(String value) { public static int hexToInt(String value) {
return Integer.parseInt(value, 16); return Integer.parseInt(stripHexPrefix(value), 16);
} }
/** /**
@ -326,7 +340,7 @@ public class HexUtil {
* @since 5.7.4 * @since 5.7.4
*/ */
public static long hexToLong(String value) { public static long hexToLong(String value) {
return Long.parseLong(value, 16); return Long.parseLong(stripHexPrefix(value), 16);
} }
/** /**
@ -352,7 +366,7 @@ public class HexUtil {
if (null == hexStr) { if (null == hexStr) {
return null; return null;
} }
return new BigInteger(hexStr, 16); return new BigInteger(stripHexPrefix(hexStr), 16);
} }
/** /**

31
hutool-core/src/test/java/cn/hutool/core/util/HexUtilTest.java
View File

@ -3,6 +3,7 @@ package cn.hutool.core.util;
import static org.junit.jupiter.api.Assertions.*; import static org.junit.jupiter.api.Assertions.*;
import org.junit.jupiter.api.Test; import org.junit.jupiter.api.Test;
import java.math.BigInteger;
import java.nio.charset.StandardCharsets; import java.nio.charset.StandardCharsets;
/** /**
@ -85,4 +86,34 @@ public class HexUtilTest {
final String s1 = HexUtil.decodeHexStr(s); final String s1 = HexUtil.decodeHexStr(s);
assertEquals("6", s1); assertEquals("6", s1);
} }
@Test
public void hexToIntTest() {
final String hex1 = "FF";
assertEquals(255, HexUtil.hexToInt(hex1));
final String hex2 = "0xFF";
assertEquals(255, HexUtil.hexToInt(hex2));
final String hex3 = "#FF";
assertEquals(255, HexUtil.hexToInt(hex3));
}
@Test
public void hexToLongTest() {
final String hex1 = "FF";
assertEquals(255L, HexUtil.hexToLong(hex1));
final String hex2 = "0xFF";
assertEquals(255L, HexUtil.hexToLong(hex2));
final String hex3 = "#FF";
assertEquals(255L, HexUtil.hexToLong(hex3));
}
@Test
public void toBigIntegerTest() {
final String hex1 = "FF";
assertEquals(new BigInteger("FF", 16), HexUtil.toBigInteger(hex1));
final String hex2 = "0xFF";
assertEquals(new BigInteger("FF", 16), HexUtil.toBigInteger(hex2));
final String hex3 = "#FF";
assertEquals(new BigInteger("FF", 16), HexUtil.toBigInteger(hex3));
}
} }