彻底铲除OSSUtil，抽象、修改

src/main/java/com/ycwl/basic/storage/utils/StorageUtil.java

@@ -0,0 +1,41 @@
+package com.ycwl.basic.storage.utils;
+
+import org.apache.commons.lang3.StringUtils;
+
+public class StorageUtil {
+    public static String joinPath(String path, String subPath) {
+        if (StringUtils.isBlank(path)) {
+            return subPath;
+        }
+        if (subPath.startsWith("/")) {
+            subPath = subPath.substring(1);
+        }
+        if (path.endsWith("/")) {
+            path = path.substring(0, path.length() - 1);
+        }
+        if (StringUtils.isBlank(subPath)) {
+            return path;
+        }
+        if (path.endsWith("/")) {
+            return path + subPath;
+        } else {
+            return path + "/" + subPath;
+        }
+    }
+
+    public static String joinPath(String ...names) {
+        String name = names[0];
+        for (int i = 1; i < names.length; i++) {
+            name = joinPath(name, names[i]);
+        }
+        return name;
+    }
+
+
+    public static String joinPath(String name, String ...names) {
+        for (String s : names) {
+            name = joinPath(name, s);
+        }
+        return name;
+    }
+}