From 9b413139e15181461b1dea5be537e046df3a60f1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E7=B3=96=E7=8C=AB=E7=8C=AB?= <tangllty@163.com>
Date: Fri, 26 Jan 2024 07:06:13 +0000
Subject: [PATCH] =?UTF-8?q?add=20=E5=AE=9E=E7=94=A8=E5=B0=8F=E5=B7=A5?=
 =?UTF-8?q?=E5=85=B7/StringUtils.java.=20=E5=8F=AF=E4=BB=A5=E6=96=B9?=
 =?UTF-8?q?=E4=BE=BF=E7=9A=84=E5=AF=B9=E5=AD=97=E7=AC=A6=E4=B8=B2=E8=BF=9B?=
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Signed-off-by: 糖猫猫 <tangllty@163.com>
---
 .../StringUtils.java"                         | 82 +++++++++++++++++++
 1 file changed, 82 insertions(+)
 create mode 100644 "\345\256\236\347\224\250\345\260\217\345\267\245\345\205\267/StringUtils.java"

diff --git "a/\345\256\236\347\224\250\345\260\217\345\267\245\345\205\267/StringUtils.java" "b/\345\256\236\347\224\250\345\260\217\345\267\245\345\205\267/StringUtils.java"
new file mode 100644
index 0000000..50d325e
--- /dev/null
+++ "b/\345\256\236\347\224\250\345\260\217\345\267\245\345\205\267/StringUtils.java"
@@ -0,0 +1,82 @@
+package com.tang.commons.utils;
+
+import java.util.Objects;
+
+/**
+ * 字符串工具类
+ *
+ * @see https://gitee.com/tangllty/tang-boot/blob/master/tang-commons/src/main/java/com/tang/commons/utils/StringUtils.java
+ * @author Tang
+ */
+public class StringUtils {
+
+    private StringUtils() {
+    }
+
+    /**
+     * 默认占位符
+     */
+    private static final String DEFAULT_PLACE_HOLDER = "{}";
+
+    /**
+     * 格式化字符串
+     *
+     * @param format 模板
+     * @param args   参数列表
+     * @return 结果
+     */
+    public static String format(String format, Object... args) {
+        if (Objects.isNull(format) || Objects.isNull(args) || args.length == 0) {
+            return Objects.isNull(format) ? "" : format;
+        }
+        return formatWith(format, DEFAULT_PLACE_HOLDER, args);
+    }
+
+    /**
+     * 格式化字符串
+     *
+     * @param format      模板
+     * @param placeHolder 占位符
+     * @param args        参数列表
+     * @return 结果
+     */
+    public static String formatWith(String format, String placeHolder, Object... args) {
+        if (Objects.isNull(format) || Objects.isNull(placeHolder) || Objects.isNull(args) || args.length == 0) {
+            return Objects.isNull(format) ? "" : format;
+        }
+
+        var formatLength = format.length();
+        var placeHolderLength = placeHolder.length();
+
+        var stringBuilder = new StringBuilder(formatLength << 1);
+
+        // 记录已经处理到的位置
+        var placeHolderIndex = 0;
+        // 占位符所在位置
+        var placeHolderPosition = -1;
+
+        for (Object arg : args) {
+            placeHolderPosition = format.indexOf(placeHolder, placeHolderIndex);
+            // 剩余部分无占位符
+            if (placeHolderPosition == -1) {
+                // 不带占位符的模板直接返回
+                if (placeHolderIndex == 0) {
+                    return format;
+                }
+                // 字符串模板剩余部分不再包含占位符，加入剩余部分后返回结果
+                stringBuilder.append(format, placeHolderIndex, formatLength);
+                return stringBuilder.toString();
+            }
+
+            stringBuilder.append(format, placeHolderIndex, placeHolderPosition);
+            stringBuilder.append(arg);
+            placeHolderIndex = placeHolderPosition + placeHolderLength;
+        }
+
+        // 加入最后一个占位符后所有的字符
+        stringBuilder.append(format, placeHolderIndex, formatLength);
+
+        return stringBuilder.toString();
+    }
+
+}
-- 
Gitee