优化下载图片

ruoyi-common/src/main/java/com/ruoyi/common/utils/file/FileUtils.java

@@ -117,23 +117,20 @@ public class FileUtils
      */
     public static void urlResourceWriteBytes(List<Map<String,Object>> filePathList, OutputStream os) throws IOException
     {
-//        InputStream fis = null;
-        BufferedInputStream buf = null;
+        BufferedInputStream bufIn = null;
         ZipEntry zipEntry = null;
         ZipOutputStream zipOutputStream = new ZipOutputStream(os);
         try
         {
             for(Map<String,Object> filePath:filePathList){
                 URL file = new URL(filePath.get("urlPath").toString());
-//                fis = file.openStream();
-                buf = new BufferedInputStream(file.openStream());
+                bufIn = new BufferedInputStream(file.openStream());
                 zipEntry = new ZipEntry(filePath.get("downloadPath").toString());
                 zipOutputStream.putNextEntry(zipEntry);
-                byte[] b = new byte[1024];
-                int length;
-                while ((length = buf.read(b)) > 0)
+                int length = 0;
+                while ((length = bufIn.read()) != -1)
                 {
-                    zipOutputStream.write(b, 0, length);
+                    zipOutputStream.write(length);
                 }
             }
         }
@@ -145,8 +142,8 @@ public class FileUtils
         {
             zipOutputStream.closeEntry();
             IOUtils.close(zipOutputStream);
+            IOUtils.close(bufIn);
             IOUtils.close(os);
-            IOUtils.close(buf);
         }
     }