From 5b4e9ef4dbdc8f2170afbde09be96c21bb9766e1 Mon Sep 17 00:00:00 2001 From: 疯狂的狮子li <15040126243@163.com> Date: 星期四, 22 四月 2021 09:50:03 +0800 Subject: [PATCH] Merge branch 'master' of https://gitee.com/JavaLionLi/RuoYi-Vue-Plus into dev --- ruoyi-common/src/main/java/com/ruoyi/common/utils/file/FileTypeUtils.java | 29 +++++++++++++++++++++++++++++ 1 files changed, 29 insertions(+), 0 deletions(-) diff --git a/ruoyi-common/src/main/java/com/ruoyi/common/utils/file/FileTypeUtils.java b/ruoyi-common/src/main/java/com/ruoyi/common/utils/file/FileTypeUtils.java index 65be65b..25f5306 100644 --- a/ruoyi-common/src/main/java/com/ruoyi/common/utils/file/FileTypeUtils.java +++ b/ruoyi-common/src/main/java/com/ruoyi/common/utils/file/FileTypeUtils.java @@ -44,4 +44,33 @@ } return fileName.substring(separatorIndex + 1).toLowerCase(); } + + /** + * 鑾峰彇鏂囦欢绫诲瀷 + * + * @param photoByte 鏂囦欢瀛楄妭鐮� + * @return 鍚庣紑锛堜笉鍚�".") + */ + 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; + } } \ No newline at end of file -- Gitblit v1.9.3