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fix bug;

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This commit is contained in:
Zjp 2023-02-15 21:12:21 +08:00
parent e2266f593f
commit 3b3871ba1e
2 changed files with 10 additions and 2 deletions
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3
hutool-core/src/main/java/cn/hutool/core/net/MaskBit.java
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@ -2,6 +2,7 @@ package cn.hutool.core.net;
import cn.hutool.core.lang.Assert; import cn.hutool.core.lang.Assert;
import cn.hutool.core.map.BiMap; import cn.hutool.core.map.BiMap;
import java.util.HashMap; import java.util.HashMap;
/** /**
@ -83,6 +84,6 @@ public class MaskBit {
*/ */
public static long getMaskIpLong(final int maskBit) { public static long getMaskIpLong(final int maskBit) {
Assert.isTrue(MASK_BIT_MAP.containsKey(maskBit), "非法的掩码位数：{}", maskBit); Assert.isTrue(MASK_BIT_MAP.containsKey(maskBit), "非法的掩码位数：{}", maskBit);
return -1L << (32 - maskBit); return (0xffffffffL << (32 - maskBit)) & 0xffffffffL;
} }
} }

7
hutool-core/src/test/java/cn/hutool/core/net/Ipv4UtilTest.java
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@ -132,6 +132,13 @@ public class Ipv4UtilTest {
Assert.assertEquals(4294967295L, l); Assert.assertEquals(4294967295L, l);
} }
@Test
public void getMaskIpLongTest() {
for (int i = 1; i <= 32; i++) {
Assert.assertEquals(Ipv4Util.ipv4ToLong(MaskBit.get(i)), MaskBit.getMaskIpLong(i));
}
}
@SuppressWarnings("SameParameterValue") @SuppressWarnings("SameParameterValue")
private void testGenerateIpList(final String fromIp, final String toIp) { private void testGenerateIpList(final String fromIp, final String toIp) {
Assert.assertEquals( Assert.assertEquals(