增加管理员模块~

common/common-framework/src/main/java/cn/iocoder/common/framework/util/HttpUtil.java

@@ -0,0 +1,21 @@
+package cn.iocoder.common.framework.util;
+
+import org.springframework.util.StringUtils;
+
+import javax.servlet.http.HttpServletRequest;
+
+public class HttpUtil {
+
+    public static String obtainAccess(HttpServletRequest request) {
+        String authorization = request.getHeader("Authorization");
+        if (!StringUtils.hasText(authorization)) {
+            return null;
+        }
+        int index = authorization.indexOf("Bearer ");
+        if (index == -1) { // 未找到
+            return null;
+        }
+        return authorization.substring(index + 7).trim();
+    }
+
+}