From 31f55ea1de6f788a93c539ee025d324d40a9dc19 Mon Sep 17 00:00:00 2001
From: RuoYi <yzz_ivy@163.com>
Date: 星期二, 04 一月 2022 20:24:49 +0800
Subject: [PATCH] update donate

---
 src/main/java/com/ruoyi/common/utils/file/FileUtils.java |  100 +++++++++++++++++++++++++++++++++++++++-----------
 1 files changed, 78 insertions(+), 22 deletions(-)

diff --git a/src/main/java/com/ruoyi/common/utils/file/FileUtils.java b/src/main/java/com/ruoyi/common/utils/file/FileUtils.java
index dfdf9e9..6aed085 100644
--- a/src/main/java/com/ruoyi/common/utils/file/FileUtils.java
+++ b/src/main/java/com/ruoyi/common/utils/file/FileUtils.java
@@ -3,6 +3,7 @@
 import java.io.File;
 import java.io.FileInputStream;
 import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.OutputStream;
 import java.io.UnsupportedEncodingException;
@@ -10,8 +11,12 @@
 import java.nio.charset.StandardCharsets;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
+import org.apache.commons.io.IOUtils;
 import org.apache.commons.lang3.ArrayUtils;
+import com.ruoyi.common.utils.DateUtils;
+import com.ruoyi.common.utils.IdUtils;
 import com.ruoyi.common.utils.StringUtils;
+import com.ruoyi.framework.config.RuoYiConfig;
 
 /**
  * 鏂囦欢澶勭悊宸ュ叿绫�
@@ -53,29 +58,48 @@
         }
         finally
         {
-            if (os != null)
-            {
-                try
-                {
-                    os.close();
-                }
-                catch (IOException e1)
-                {
-                    e1.printStackTrace();
-                }
-            }
-            if (fis != null)
-            {
-                try
-                {
-                    fis.close();
-                }
-                catch (IOException e1)
-                {
-                    e1.printStackTrace();
-                }
-            }
+            IOUtils.close(os);
+            IOUtils.close(fis);
         }
+    }
+
+    /**
+     * 鍐欐暟鎹埌鏂囦欢涓�
+     *
+     * @param data 鏁版嵁
+     * @return 鐩爣鏂囦欢
+     * @throws IOException IO寮傚父
+     */
+    public static String writeImportBytes(byte[] data) throws IOException
+    {
+        return writeBytes(data, RuoYiConfig.getImportPath());
+    }
+
+    /**
+     * 鍐欐暟鎹埌鏂囦欢涓�
+     *
+     * @param data 鏁版嵁
+     * @param uploadDir 鐩爣鏂囦欢
+     * @return 鐩爣鏂囦欢
+     * @throws IOException IO寮傚父
+     */
+    public static String writeBytes(byte[] data, String uploadDir) throws IOException
+    {
+        FileOutputStream fos = null;
+        String pathName = "";
+        try
+        {
+            String extension = getFileExtendName(data);
+            pathName = DateUtils.datePath() + "/" + IdUtils.fastUUID() + "." + extension;
+            File file = FileUploadUtils.getAbsoluteFile(uploadDir, pathName);
+            fos = new FileOutputStream(file);
+            fos.write(data);
+        }
+        finally
+        {
+            IOUtils.close(fos);
+        }
+        return FileUploadUtils.getPathFileName(uploadDir, pathName);
     }
 
     /**
@@ -186,7 +210,10 @@
                 .append("utf-8''")
                 .append(percentEncodedFileName);
 
+        response.addHeader("Access-Control-Allow-Origin", "*");
+        response.addHeader("Access-Control-Expose-Headers", "Content-Disposition,download-filename");
         response.setHeader("Content-disposition", contentDispositionValue.toString());
+        response.setHeader("download-filename", percentEncodedFileName);
     }
 
     /**
@@ -200,4 +227,33 @@
         String encode = URLEncoder.encode(s, StandardCharsets.UTF_8.toString());
         return encode.replaceAll("\\+", "%20");
     }
+
+    /**
+     * 鑾峰彇鍥惧儚鍚庣紑
+     * 
+     * @param photoByte 鍥惧儚鏁版嵁
+     * @return 鍚庣紑鍚�
+     */
+    public static String getFileExtendName(byte[] photoByte)
+    {
+        String strFileExtendName = "jpg";
+        if ((photoByte[0] == 71) && (photoByte[1] == 73) && (photoByte[2] == 70) && (photoByte[3] == 56)
+                && ((photoByte[4] == 55) || (photoByte[4] == 57)) && (photoByte[5] == 97))
+        {
+            strFileExtendName = "gif";
+        }
+        else if ((photoByte[6] == 74) && (photoByte[7] == 70) && (photoByte[8] == 73) && (photoByte[9] == 70))
+        {
+            strFileExtendName = "jpg";
+        }
+        else if ((photoByte[0] == 66) && (photoByte[1] == 77))
+        {
+            strFileExtendName = "bmp";
+        }
+        else if ((photoByte[1] == 80) && (photoByte[2] == 78) && (photoByte[3] == 71))
+        {
+            strFileExtendName = "png";
+        }
+        return strFileExtendName;
+    }
 }

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