🎨 增加网络文件转File方法

src/main/java/utils/FileUtils.java

@@ -3,7 +3,10 @@ package utils;
 import org.springframework.web.multipart.MultipartFile;
 
 import java.io.File;
-import java.io.IOException;
+import java.io.FileOutputStream;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.net.URL;
 import java.nio.file.Files;
 import java.nio.file.Paths;
 import java.util.Base64;
@@ -62,4 +65,49 @@ public class FileUtils {
         assert multipartFile != null;
         multipartFile.transferTo(dest);
     }
+
+    /**
+     * 网络文件转File
+     * @param url
+     * @return
+     * @throws Exception
+     */
+    public static File getFile(String url) throws Exception {
+        //对本地文件命名
+        String fileName = url.substring(url.lastIndexOf("."),url.length());
+        File file = null;
+
+        URL urlfile;
+        InputStream inStream = null;
+        OutputStream os = null;
+        try {
+            file = File.createTempFile("net_url", fileName);
+            //下载
+            urlfile = new URL(url);
+            inStream = urlfile.openStream();
+            os = new FileOutputStream(file);
+
+            int bytesRead = 0;
+            byte[] buffer = new byte[8192];
+            while ((bytesRead = inStream.read(buffer, 0, 8192)) != -1) {
+                os.write(buffer, 0, bytesRead);
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+        } finally {
+            try {
+                if (null != os) {
+                    os.close();
+                }
+                if (null != inStream) {
+                    inStream.close();
+                }
+
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+        }
+
+        return file;
+    }
 }