From dbba894544c8f3c4739a7b8ef2b4a9a902a8ab3b Mon Sep 17 00:00:00 2001
From: 疯狂的狮子li <15040126243@163.com>
Date: 星期一, 29 十一月 2021 14:01:28 +0800
Subject: [PATCH] 发布 v3.4.0
---
ruoyi-common/src/main/java/com/ruoyi/common/utils/file/FileUtils.java | 193 ++++++++++++-----------------------------------
1 files changed, 51 insertions(+), 142 deletions(-)
diff --git a/ruoyi-common/src/main/java/com/ruoyi/common/utils/file/FileUtils.java b/ruoyi-common/src/main/java/com/ruoyi/common/utils/file/FileUtils.java
index 03f5aa2..ff56a2a 100644
--- a/ruoyi-common/src/main/java/com/ruoyi/common/utils/file/FileUtils.java
+++ b/ruoyi-common/src/main/java/com/ruoyi/common/utils/file/FileUtils.java
@@ -1,142 +1,51 @@
-package com.ruoyi.common.utils.file;
-
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileNotFoundException;
-import java.io.IOException;
-import java.io.OutputStream;
-import java.io.UnsupportedEncodingException;
-import java.net.URLEncoder;
-import javax.servlet.http.HttpServletRequest;
-
-/**
- * 鏂囦欢澶勭悊宸ュ叿绫�
- *
- * @author ruoyi
- */
-public class FileUtils
-{
- public static String FILENAME_PATTERN = "[a-zA-Z0-9_\\-\\|\\.\\u4e00-\\u9fa5]+";
-
- /**
- * 杈撳嚭鎸囧畾鏂囦欢鐨刡yte鏁扮粍
- *
- * @param filePath 鏂囦欢璺緞
- * @param os 杈撳嚭娴�
- * @return
- */
- public static void writeBytes(String filePath, OutputStream os) throws IOException
- {
- FileInputStream fis = null;
- try
- {
- File file = new File(filePath);
- if (!file.exists())
- {
- throw new FileNotFoundException(filePath);
- }
- fis = new FileInputStream(file);
- byte[] b = new byte[1024];
- int length;
- while ((length = fis.read(b)) > 0)
- {
- os.write(b, 0, length);
- }
- }
- catch (IOException e)
- {
- throw e;
- }
- finally
- {
- if (os != null)
- {
- try
- {
- os.close();
- }
- catch (IOException e1)
- {
- e1.printStackTrace();
- }
- }
- if (fis != null)
- {
- try
- {
- fis.close();
- }
- catch (IOException e1)
- {
- e1.printStackTrace();
- }
- }
- }
- }
-
- /**
- * 鍒犻櫎鏂囦欢
- *
- * @param filePath 鏂囦欢
- * @return
- */
- public static boolean deleteFile(String filePath)
- {
- boolean flag = false;
- File file = new File(filePath);
- // 璺緞涓烘枃浠朵笖涓嶄负绌哄垯杩涜鍒犻櫎
- if (file.isFile() && file.exists())
- {
- file.delete();
- flag = true;
- }
- return flag;
- }
-
- /**
- * 鏂囦欢鍚嶇О楠岃瘉
- *
- * @param filename 鏂囦欢鍚嶇О
- * @return true 姝ｅ父 false 闈炴硶
- */
- public static boolean isValidFilename(String filename)
- {
- return filename.matches(FILENAME_PATTERN);
- }
-
- /**
- * 涓嬭浇鏂囦欢鍚嶉噸鏂扮紪鐮�
- *
- * @param request 璇锋眰瀵硅薄
- * @param fileName 鏂囦欢鍚�
- * @return 缂栫爜鍚庣殑鏂囦欢鍚�
- */
- public static String setFileDownloadHeader(HttpServletRequest request, String fileName)
- throws UnsupportedEncodingException
- {
- final String agent = request.getHeader("USER-AGENT");
- String filename = fileName;
- if (agent.contains("MSIE"))
- {
- // IE娴忚鍣�
- filename = URLEncoder.encode(filename, "utf-8");
- filename = filename.replace("+", " ");
- }
- else if (agent.contains("Firefox"))
- {
- // 鐏嫄娴忚鍣�
- filename = new String(fileName.getBytes(), "ISO8859-1");
- }
- else if (agent.contains("Chrome"))
- {
- // google娴忚鍣�
- filename = URLEncoder.encode(filename, "utf-8");
- }
- else
- {
- // 鍏跺畠娴忚鍣�
- filename = URLEncoder.encode(filename, "utf-8");
- }
- return filename;
- }
-}
+package com.ruoyi.common.utils.file;
+
+import cn.hutool.core.io.FileUtil;
+
+import javax.servlet.http.HttpServletResponse;
+import java.io.UnsupportedEncodingException;
+import java.net.URLEncoder;
+import java.nio.charset.StandardCharsets;
+
+/**
+ * 鏂囦欢澶勭悊宸ュ叿绫�
+ *
+ * @author Lion Li
+ */
+public class FileUtils extends FileUtil {
+
+ /**
+ * 涓嬭浇鏂囦欢鍚嶉噸鏂扮紪鐮�
+ *
+ * @param response 鍝嶅簲瀵硅薄
+ * @param realFileName 鐪熷疄鏂囦欢鍚�
+ * @return
+ */
+ public static void setAttachmentResponseHeader(HttpServletResponse response, String realFileName) throws UnsupportedEncodingException {
+ String percentEncodedFileName = percentEncode(realFileName);
+
+ StringBuilder contentDispositionValue = new StringBuilder();
+ contentDispositionValue.append("attachment; filename=")
+ .append(percentEncodedFileName)
+ .append(";")
+ .append("filename*=")
+ .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);
+ }
+
+ /**
+ * 鐧惧垎鍙风紪鐮佸伐鍏锋柟娉�
+ *
+ * @param s 闇�瑕佺櫨鍒嗗彿缂栫爜鐨勫瓧绗︿覆
+ * @return 鐧惧垎鍙风紪鐮佸悗鐨勫瓧绗︿覆
+ */
+ public static String percentEncode(String s) throws UnsupportedEncodingException {
+ String encode = URLEncoder.encode(s, StandardCharsets.UTF_8.toString());
+ return encode.replaceAll("\\+", "%20");
+ }
+}
--
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