1、增加脱敏专业工具类 DesensitizedUtils ，增加对用户id、中文名、身份证号、座机号、手机号、地址、电子邮件、密码；

(生产项目中使用的很多，希望采纳，该脱敏工具类，可以极大简化项目中脱敏需求的需求) 2、CharSequenceUtil工具类，增加：Left/Right/Mid 用来兼容 org.apache.commons.lang3.StringUtils 使用习惯; 目前CharSequenceUtil工具类中有类似的功能，但是和 Left/Right/Mid 功能还是有很大差距。 3、新增的DesensitizedUtils 和 CharSequenceUtil新增left、right、mid方法都经过了测试；
2025-07-21 15:09:48 +08:00 · 2021-03-20 23:29:27 +08:00
parent 6d5ca7051b
commit 86710d6c20
4 changed files with 776 additions and 6 deletions
--- a/hutool-core/src/test/java/cn/hutool/core/util/DesensitizedUtilsTest.java
+++ b/hutool-core/src/test/java/cn/hutool/core/util/DesensitizedUtilsTest.java
@@ -0,0 +1,58 @@
+package cn.hutool.core.util;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+/**
+ * 脱敏工具类 DesensitizedUtils 安全测试
+ * @author dazer and nuesoft
+ * @date 2021/3/20 22:34
+ * @see DesensitizedUtils
+ */
+public class DesensitizedUtilsTest {
+
+	@Test
+	public void userIdTest() {
+		Assert.assertEquals(Long.valueOf(0L), DesensitizedUtils.userId());
+	}
+
+	@Test
+	public void chineseNameTest() {
+		Assert.assertEquals("段**", DesensitizedUtils.chineseName("段正淳"));
+	}
+
+	@Test
+	public void idCardNumTest() {
+		Assert.assertEquals("5***************1X", DesensitizedUtils.idCardNum("51343620000320711X", 1, 2));
+	}
+
+	@Test
+	public void fixedPhoneTest() {
+		Assert.assertEquals("0915*****79", DesensitizedUtils.fixedPhone("09157518479"));
+	}
+
+	@Test
+	public void mobilePhoneTest() {
+		Assert.assertEquals("180****1999", DesensitizedUtils.mobilePhone("18049531999"));
+	}
+
+	@Test
+	public void addressTest() {
+		Assert.assertEquals("北京市海淀区马连洼街*****", DesensitizedUtils.address("北京市海淀区马连洼街道289号", 5));
+		Assert.assertEquals("***************", DesensitizedUtils.address("北京市海淀区马连洼街道289号", 50));
+		Assert.assertEquals("北京市海淀区马连洼街道289号", DesensitizedUtils.address("北京市海淀区马连洼街道289号", 0));
+		Assert.assertEquals("北京市海淀区马连洼街道289号", DesensitizedUtils.address("北京市海淀区马连洼街道289号", -1));
+	}
+
+	@Test
+	public void emailTest() {
+		Assert.assertEquals("d********@126.com", DesensitizedUtils.email("duandazhi@126.com"));
+		Assert.assertEquals("d********@gmail.com.cn", DesensitizedUtils.email("duandazhi@gmail.com.cn"));
+		Assert.assertEquals("d*************@gmail.com.cn", DesensitizedUtils.email("duandazhi-jack@gmail.com.cn"));
+	}
+
+	@Test
+	public void passwordTest() {
+		Assert.assertEquals("**********", DesensitizedUtils.password("1234567890"));
+	}
+}
--- a/hutool-core/src/test/java/cn/hutool/core/util/StrUtilTest.java
+++ b/hutool-core/src/test/java/cn/hutool/core/util/StrUtilTest.java
@@ -192,6 +192,10 @@ public class StrUtilTest {
 		String a = "1039";
 		String result = StrUtil.padPre(a, 8, "0"); //在字符串1039前补4个0
 		Assert.assertEquals("00001039", result);
+
+		String aa = "1039";
+		String result1 = StrUtil.padPre(aa, -1, "0"); //在字符串1039前补4个0
+		Assert.assertEquals("103", result1);
 	}

 	@Test
@@ -403,6 +407,7 @@ public class StrUtilTest {
 		Assert.assertNull(StrUtil.padAfter(null, 10, ' '));
 		Assert.assertEquals("100", StrUtil.padAfter("1", 3, '0'));
 		Assert.assertEquals("23", StrUtil.padAfter("123", 2, '0'));
+		Assert.assertEquals("23", StrUtil.padAfter("123", -1, '0'));

 		Assert.assertNull(StrUtil.padAfter(null, 10, "ABC"));
 		Assert.assertEquals("1AB", StrUtil.padAfter("1", 3, "ABC"));
@@ -492,4 +497,109 @@ public class StrUtilTest {
 		final String ret = StrUtil.indexedFormat("this is {0} for {1}", "a", 1000);
 		Assert.assertEquals("this is a for 1,000", ret);
 	}
+
+	@Test
+	public void leftTest() {
+		Assert.assertNull(StrUtil.left(null, 1));
+		Assert.assertEquals("", StrUtil.left("neu", -1));
+		Assert.assertEquals("", StrUtil.left("", 1));
+		Assert.assertEquals("", StrUtil.left("neu", 0));
+		Assert.assertEquals("ne", StrUtil.left("neu", 2));
+		Assert.assertEquals("neu", StrUtil.left("neu", 4));
+	}
+
+	@Test
+	public void leftPadTest() {
+		Assert.assertNull(StrUtil.leftPad(null, 1));
+		Assert.assertEquals("", StrUtil.leftPad("", -1));
+		Assert.assertEquals("   ", StrUtil.leftPad("", 3));
+		Assert.assertEquals("bat", StrUtil.leftPad("bat", -1));
+		Assert.assertEquals("bat", StrUtil.leftPad("bat", 1));
+		Assert.assertEquals("bat", StrUtil.leftPad("bat", 3));
+		Assert.assertEquals("  bat", StrUtil.leftPad("bat", 5));
+
+		Assert.assertNull(StrUtil.leftPad(null, 1, "z"));
+		Assert.assertEquals("", StrUtil.leftPad("", -1, "z"));
+		Assert.assertEquals("zzz", StrUtil.leftPad("", 3, "z"));
+		Assert.assertEquals("bat", StrUtil.leftPad("bat", -1, "z"));
+		Assert.assertEquals("bat", StrUtil.leftPad("bat", 1, "z"));
+		Assert.assertEquals("bat", StrUtil.leftPad("bat", 3, "z"));
+		Assert.assertEquals("zzbat", StrUtil.leftPad("bat", 5, "z"));
+	}
+
+	@Test
+	public void rightTest() {
+		Assert.assertNull(StrUtil.right(null, 1));
+		Assert.assertEquals("", StrUtil.right("neu", -1));
+		Assert.assertEquals("", StrUtil.right("", 1));
+		Assert.assertEquals("", StrUtil.right("neu", 0));
+		Assert.assertEquals("eu", StrUtil.right("neu", 2));
+		Assert.assertEquals("neu", StrUtil.right("neu", 4));
+	}
+
+	@Test
+	public void rightPadTest() {
+		Assert.assertNull(StrUtil.rightPad(null, 1));
+		Assert.assertEquals("   ", StrUtil.rightPad("", 3));
+		Assert.assertEquals("bat", StrUtil.rightPad("bat", 3));
+		Assert.assertEquals("bat  ", StrUtil.rightPad("bat", 5));
+		Assert.assertEquals("bat", StrUtil.rightPad("bat", 1));
+		Assert.assertEquals("bat", StrUtil.rightPad("bat", -1));
+
+		Assert.assertNull(StrUtil.rightPad(null, 1, 'z'));
+		Assert.assertEquals("zzz", StrUtil.rightPad("", 3, 'z'));
+		Assert.assertEquals("bat", StrUtil.rightPad("bat", 3, 'z'));
+		Assert.assertEquals("batzz", StrUtil.rightPad("bat", 5, 'z'));
+		Assert.assertEquals("bat", StrUtil.rightPad("bat", 1, 'z'));
+		Assert.assertEquals("bat", StrUtil.rightPad("bat", -1, 'z'));
+
+		Assert.assertNull(StrUtil.rightPad(null, 1, "z"));
+		Assert.assertEquals("zzz", StrUtil.rightPad("", 3, "z"));
+		Assert.assertEquals("bat", StrUtil.rightPad("bat", 3, "z"));
+		Assert.assertEquals("batzz", StrUtil.rightPad("bat", 5, "z"));
+		Assert.assertEquals("bat", StrUtil.rightPad("bat", 1, "z"));
+		Assert.assertEquals("bat", StrUtil.rightPad("bat", -1, "z"));
+	}
+
+	@Test
+	public void midTest() {
+		Assert.assertNull(StrUtil.mid(null, 1, 1));
+		Assert.assertEquals("", StrUtil.mid("abc", 1, -1));
+		Assert.assertEquals("", StrUtil.mid("", 0, 1));
+		Assert.assertEquals("ab", StrUtil.mid("abc", 0, 2));
+		Assert.assertEquals("abc", StrUtil.mid("abc", 0, 4));
+		Assert.assertEquals("c", StrUtil.mid("abc", 2, 4));
+		Assert.assertEquals("", StrUtil.mid("abc", 4, 2));
+		Assert.assertEquals("ab", StrUtil.mid("abc", -2, 2));
+	}
+
+	@Test
+	public void hideTest() {
+		Assert.assertNull(StrUtil.hide(null, 1, 1));
+		Assert.assertEquals("", StrUtil.hide("", 1, 1));
+		Assert.assertEquals("****duan@163.com", StrUtil.hide("jackduan@163.com", -1, 4));
+		Assert.assertEquals("ja*kduan@163.com", StrUtil.hide("jackduan@163.com", 2, 3));
+		Assert.assertEquals("jackduan@163.com", StrUtil.hide("jackduan@163.com", 3, 2));
+		Assert.assertEquals("jackduan@163.com", StrUtil.hide("jackduan@163.com", 16, 16));
+		Assert.assertEquals("jackduan@163.com", StrUtil.hide("jackduan@163.com", 16, 17));
+
+
+		Assert.assertEquals("0", StrUtil.hide("100", DesensitizedUtils.DesensitizedType.USER_ID));
+		Assert.assertEquals("段**", StrUtil.hide("段正淳", DesensitizedUtils.DesensitizedType.CHINESE_NAME));
+		Assert.assertEquals("5***************1X", StrUtil.hide("51343620000320711X", DesensitizedUtils.DesensitizedType.ID_CARD));
+		Assert.assertEquals("0915*****79", StrUtil.hide("09157518479", DesensitizedUtils.DesensitizedType.FIXED_PHONE));
+		Assert.assertEquals("180****1999", StrUtil.hide("18049531999", DesensitizedUtils.DesensitizedType.MOBILE_PHONE));
+		Assert.assertEquals("北京市海淀区马********", StrUtil.hide("北京市海淀区马连洼街道289号", DesensitizedUtils.DesensitizedType.ADDRESS));
+		Assert.assertEquals("d*************@gmail.com.cn", StrUtil.hide("duandazhi-jack@gmail.com.cn", DesensitizedUtils.DesensitizedType.EMAIL));
+		Assert.assertEquals("**********", StrUtil.hide("1234567890", DesensitizedUtils.DesensitizedType.PASSWORD));
+
+		Assert.assertEquals("0", StrUtil.desensitized("100", DesensitizedUtils.DesensitizedType.USER_ID));
+		Assert.assertEquals("段**", StrUtil.desensitized("段正淳", DesensitizedUtils.DesensitizedType.CHINESE_NAME));
+		Assert.assertEquals("5***************1X", StrUtil.desensitized("51343620000320711X", DesensitizedUtils.DesensitizedType.ID_CARD));
+		Assert.assertEquals("0915*****79", StrUtil.desensitized("09157518479", DesensitizedUtils.DesensitizedType.FIXED_PHONE));
+		Assert.assertEquals("180****1999", StrUtil.desensitized("18049531999", DesensitizedUtils.DesensitizedType.MOBILE_PHONE));
+		Assert.assertEquals("北京市海淀区马********", StrUtil.desensitized("北京市海淀区马连洼街道289号", DesensitizedUtils.DesensitizedType.ADDRESS));
+		Assert.assertEquals("d*************@gmail.com.cn", StrUtil.desensitized("duandazhi-jack@gmail.com.cn", DesensitizedUtils.DesensitizedType.EMAIL));
+		Assert.assertEquals("**********", StrUtil.desensitized("1234567890", DesensitizedUtils.DesensitizedType.PASSWORD));
+	}
 }