From 8d6a2305324438726e7c009c6249aa7aa1319e5f Mon Sep 17 00:00:00 2001
From: RuoYi <yzz_ivy@163.com>
Date: 星期一, 22 八月 2022 10:24:30 +0800
Subject: [PATCH] 优化Context信息,防止泄漏问题

---
 src/main/java/com/ruoyi/common/utils/ServletUtils.java |   50 ++++++++++++++++++++++++++++++++++++++++++--------
 1 files changed, 42 insertions(+), 8 deletions(-)

diff --git a/src/main/java/com/ruoyi/common/utils/ServletUtils.java b/src/main/java/com/ruoyi/common/utils/ServletUtils.java
index a10c8ed..1cbf72f 100644
--- a/src/main/java/com/ruoyi/common/utils/ServletUtils.java
+++ b/src/main/java/com/ruoyi/common/utils/ServletUtils.java
@@ -1,12 +1,16 @@
 package com.ruoyi.common.utils;
 
 import java.io.IOException;
+import java.io.UnsupportedEncodingException;
+import java.net.URLDecoder;
+import java.net.URLEncoder;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 import javax.servlet.http.HttpSession;
 import org.springframework.web.context.request.RequestAttributes;
 import org.springframework.web.context.request.RequestContextHolder;
 import org.springframework.web.context.request.ServletRequestAttributes;
+import com.ruoyi.common.constant.Constants;
 import com.ruoyi.common.core.text.Convert;
 
 /**
@@ -99,9 +103,8 @@
      * 
      * @param response 娓叉煋瀵硅薄
      * @param string 寰呮覆鏌撶殑瀛楃涓�
-     * @return null
      */
-    public static String renderString(HttpServletResponse response, String string)
+    public static void renderString(HttpServletResponse response, String string)
     {
         try
         {
@@ -114,7 +117,6 @@
         {
             e.printStackTrace();
         }
-        return null;
     }
 
     /**
@@ -125,13 +127,13 @@
     public static boolean isAjaxRequest(HttpServletRequest request)
     {
         String accept = request.getHeader("accept");
-        if (accept != null && accept.indexOf("application/json") != -1)
+        if (accept != null && accept.contains("application/json"))
         {
             return true;
         }
 
         String xRequestedWith = request.getHeader("X-Requested-With");
-        if (xRequestedWith != null && xRequestedWith.indexOf("XMLHttpRequest") != -1)
+        if (xRequestedWith != null && xRequestedWith.contains("XMLHttpRequest"))
         {
             return true;
         }
@@ -143,10 +145,42 @@
         }
 
         String ajax = request.getParameter("__ajax");
-        if (StringUtils.inStringIgnoreCase(ajax, "json", "xml"))
+        return StringUtils.inStringIgnoreCase(ajax, "json", "xml");
+    }
+
+    /**
+     * 鍐呭缂栫爜
+     * 
+     * @param str 鍐呭
+     * @return 缂栫爜鍚庣殑鍐呭
+     */
+    public static String urlEncode(String str)
+    {
+        try
         {
-            return true;
+            return URLEncoder.encode(str, Constants.UTF8);
         }
-        return false;
+        catch (UnsupportedEncodingException e)
+        {
+            return StringUtils.EMPTY;
+        }
+    }
+
+    /**
+     * 鍐呭瑙ｇ爜
+     * 
+     * @param str 鍐呭
+     * @return 瑙ｇ爜鍚庣殑鍐呭
+     */
+    public static String urlDecode(String str)
+    {
+        try
+        {
+            return URLDecoder.decode(str, Constants.UTF8);
+        }
+        catch (UnsupportedEncodingException e)
+        {
+            return StringUtils.EMPTY;
+        }
     }
 }

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