优化资源访问限制

src/main/java/org/sss/presentation/noui/filter/ResourceAccessFilter.java

@@ -2,6 +2,7 @@ package org.sss.presentation.noui.filter;
 
 import log.Log;
 import log.LogFactory;
+import org.apache.commons.io.IOUtils;
 import org.sss.presentation.noui.jwt.RedisLoginInfo;
 import org.sss.presentation.noui.util.RedisUtil;
 import org.sss.presentation.noui.util.StringUtil;
@@ -149,15 +150,9 @@ public class ResourceAccessFilter implements Filter {
         ServletOutputStream out;
         try {
             out = response.getOutputStream();
-            int b = 0;
-            byte[] buffer = new byte[512];
-            while (b != -1) {
-                b = inputStream.read(buffer);
-                out.write(buffer, 0, b);
-            }
-            inputStream.close();
-            out.close();
-            out.flush();
+            IOUtils.copy(inputStream,out);
+            IOUtils.closeQuietly(inputStream);
+            IOUtils.closeQuietly(out);
         } catch (IOException e) {
             log.warn("Access Pdfs IOException");
         }