feat(): 可以配置pdf转图片最大页数

server/src/main/config/application.properties

@@ -110,6 +110,8 @@ convertMedias = ${KK_CONVERTMEDIAS:avi,mov,wmv,mkv,3gp,rm}
 #PDF预览模块设置
 #配置PDF文件生成图片的像素大小，dpi 越高，图片质量越清晰，同时也会消耗更多的计算资源。
 pdf2jpg.dpi = ${KK_PDF2JPG_DPI:144}
+# 配置PDF文件生成图片的最大页数
+pdf2jpg.maxPageSize = ${KK_PDF2JPG_MAXPAGESIZE:1000000}
 #PDF转换超时设置 (低于50页)  温馨提示这里数字仅供参考
 pdf.timeout =${KK_pdf_TIMEOUT:90}
 #PDF转换超时设置 (高于50小于200页)

server/src/main/java/cn/keking/config/ConfigConstants.java

@@ -50,6 +50,7 @@ public class ConfigConstants {
     private static String size;
     private static String password;
     private static int pdf2JpgDpi;
+    private static int pdf2JpgMaxPageSize;
     private static String officeTypeWeb;
     private static String cadPreviewType;
     private static Boolean deleteSourceFile;
@@ -503,6 +504,18 @@ public class ConfigConstants {
         ConfigConstants.pdf2JpgDpi = pdf2JpgDpi;
     }
 
+    public static int getPdf2JpgMaxPageSize() {
+        return pdf2JpgMaxPageSize;
+    }
+
+    @Value("${pdf2jpg.maxPageSize:1000000}")
+    public void pdf2JpgMaxPageSize(int pdf2JpgMaxPageSize) {
+        setPdf2JpgMaxPageSize(pdf2JpgMaxPageSize);
+    }
+    public static void setPdf2JpgMaxPageSize(int pdf2JpgMaxPageSize) {
+        ConfigConstants.pdf2JpgMaxPageSize = pdf2JpgMaxPageSize;
+    }
+
     public static String getOfficeTypeWeb() {
         return officeTypeWeb;
     }

server/src/main/java/cn/keking/service/FileHandlerService.java

@@ -262,7 +262,7 @@ public class FileHandlerService implements InitializingBean {
         try {
             doc = Loader.loadPDF(pdfFile, filePassword);
             doc.setResourceCache(new NotResourceCache());
-            pageCount[0] = doc.getNumberOfPages();
+            pageCount[0] = Math.min(doc.getNumberOfPages(), ConfigConstants.getPdf2JpgMaxPageSize());
         } catch (IOException e) {
             Throwable[] throwableArray = ExceptionUtils.getThrowables(e);
             for (Throwable throwable : throwableArray) {