fix bug

CHANGELOG.md

@@ -34,6 +34,7 @@
 * 【http   】     修复Snowflake时间回拨导致ID重复的bug（issue#1206@Github）
 * 【core   】     修复StrUtil.lastIndexOf查找位于首位的字符串找不到的bug（issue#I24RSV@Gitee）
 * 【poi    】     修复BigExcelWriter的autoSizeColumnAll问题（pr#1221@Github）
+* 【core   】     修复StrUtil.subBetweenAll不支持相同字符的问题（pr#1217@Github）
 
 -------------------------------------------------------------------------------------------------------------
 

hutool-core/src/main/java/cn/hutool/core/util/StrUtil.java

@@ -2405,10 +2405,19 @@ public class StrUtil {
 		}
 
 		final List<String> result = new LinkedList<>();
-		for (String fragment : split(str, prefix)) {
-			int suffixIndex = fragment.indexOf(suffix.toString());
-			if (suffixIndex > 0) {
-				result.add(fragment.substring(0, suffixIndex));
+		final String[] split = split(str, prefix);
+		if(prefix.equals(suffix)){
+			// 前后缀字符相同，单独处理
+			for (int i = 1, length = split.length - 1; i < length; i += 2) {
+				result.add(split[i]);
+			}
+		} else{
+			int suffixIndex;
+			for (String fragment : split) {
+				suffixIndex = fragment.indexOf(suffix.toString());
+				if (suffixIndex > 0) {
+					result.add(fragment.substring(0, suffixIndex));
+				}
 			}
 		}
 
@@ -2433,23 +2442,13 @@ public class StrUtil {
 	 * </pre>
 	 *
 	 * @param str    被切割的字符串
-	 * @param beforeAndAfter 截取开始和结束的字符串标识
+	 * @param prefixAndSuffix 截取开始和结束的字符串标识
 	 * @return 截取后的字符串
 	 * @author gotanks
-	 * @since 5.4.7
+	 * @since 5.5.0
 	 */
-	public static String[] subBetweenAll(CharSequence str, CharSequence beforeAndAfter) {
-		String[] resultArr = new String[0];
-		if (hasEmpty(str, beforeAndAfter) || !contains(str, beforeAndAfter)) {
-			return resultArr;
-		}
-
-		final List<String> result = new LinkedList<>();
-		String[] split = split(str, beforeAndAfter);
-		for (int i = 1, length = split.length - 1; i < length; i = i + 2) {
-			result.add(split[i]);
-		}
-		return result.toArray(resultArr);
+	public static String[] subBetweenAll(CharSequence str, CharSequence prefixAndSuffix) {
+		return subBetweenAll(str, prefixAndSuffix, prefixAndSuffix);
 	}
 
 	/**

hutool-core/src/test/java/cn/hutool/core/util/StrUtilTest.java

@@ -1,6 +1,5 @@
 package cn.hutool.core.util;
 
-import cn.hutool.core.lang.Console;
 import cn.hutool.core.lang.Dict;
 import org.junit.Assert;
 import org.junit.Test;
@@ -437,9 +436,21 @@ public class StrUtilTest {
 	@Test
 	public void subBetweenAllTest3() {
 		String src1 = "'abc'and'123'";
+		String[] strings = StrUtil.subBetweenAll(src1, "'", "'");
+		Assert.assertEquals(2, strings.length);
+		Assert.assertEquals("abc", strings[0]);
+		Assert.assertEquals("123", strings[1]);
+
+		String src2 = "'abc''123'";
+		strings = StrUtil.subBetweenAll(src2, "'", "'");
+		Assert.assertEquals(2, strings.length);
+		Assert.assertEquals("abc", strings[0]);
+		Assert.assertEquals("123", strings[1]);
 
-		final String[] strings = StrUtil.subBetweenAll(src1, "'", "'");
-		Console.log(strings);
+		String src3 = "'abc'123'";
+		strings = StrUtil.subBetweenAll(src3, "'", "'");
+		Assert.assertEquals(1, strings.length);
+		Assert.assertEquals("abc", strings[0]);
 	}
 
 	@Test