From b2f6fb3a007dbb46c8dfca4ebd18771672fda049 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E8=8C=83=E9=9D=92=E9=94=8B?=
 <35912870+fay1226@users.noreply.github.com>
Date: Fri, 22 Jan 2021 16:05:34 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8D=E9=87=8D=E5=A4=8D=E7=BC=96?=
 =?UTF-8?q?=E7=A0=81=E5=AF=BC=E8=87=B4=E6=96=87=E6=A1=A3=E8=BD=AC=E5=9B=BE?=
 =?UTF-8?q?=E7=89=87=E9=A2=84=E8=A7=88=E5=A4=B1=E8=B4=A5=E7=9A=84=E9=97=AE?=
 =?UTF-8?q?=E9=A2=98&=E7=BC=96=E7=A0=81=E8=A7=84=E8=8C=83?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

URLEncoder.encode(URLEncoder.encode(pdfFolder, uriEncoding).replaceAll("\+", "%20"), uriEncoding);
这里encode了两次，导致图片预览失败。
---
 .../src/main/java/cn/keking/service/FileHandlerService.java  | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/server/src/main/java/cn/keking/service/FileHandlerService.java b/server/src/main/java/cn/keking/service/FileHandlerService.java
index d5916b40..7de18ce3 100644
--- a/server/src/main/java/cn/keking/service/FileHandlerService.java
+++ b/server/src/main/java/cn/keking/service/FileHandlerService.java
@@ -178,14 +178,15 @@ public class FileHandlerService {
         String pdfFolder = pdfName.substring(0, pdfName.length() - 4);
         String urlPrefix;
         try {
-            urlPrefix = baseUrl + URLEncoder.encode(URLEncoder.encode(pdfFolder, uriEncoding).replaceAll("\\+", "%20"), uriEncoding);
+            urlPrefix = baseUrl + URLEncoder.encode(pdfFolder, uriEncoding).replaceAll("\\+", "%20");
         } catch (UnsupportedEncodingException e) {
             logger.error("UnsupportedEncodingException", e);
             urlPrefix = baseUrl + pdfFolder;
         }
         if (imageCount != null && imageCount > 0) {
-            for (int i = 0; i < imageCount; i++)
+            for (int i = 0; i < imageCount; i++) {
                 imageUrls.add(urlPrefix + "/" + i + imageFileSuffix);
+            }
             return imageUrls;
         }
         try {