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 | | package com.ruoyi.common.utils.file; |  |   |  | /** |  |  * 媒体类型工具类 |  |  *  |  |  * @author ruoyi |  |  */ |  | public class MimeTypeUtils |  | { |  |     public static final String IMAGE_PNG = "image/png"; |  |   |  |     public static final String IMAGE_JPG = "image/jpg"; |  |   |  |     public static final String IMAGE_JPEG = "image/jpeg"; |  |   |  |     public static final String IMAGE_BMP = "image/bmp"; |  |   |  |     public static final String IMAGE_GIF = "image/gif"; |  |      |  |     public static final String[] IMAGE_EXTENSION = { "bmp", "gif", "jpg", "jpeg", "png" }; |  |   |  |     public static final String[] FLASH_EXTENSION = { "swf", "flv" }; |  |   |  |     public static final String[] MEDIA_EXTENSION = { "swf", "flv", "mp3", "wav", "wma", "wmv", "mid", "avi", "mpg", |  |             "asf", "rm", "rmvb" }; |  |   |  |     public static final String[] VIDEO_EXTENSION = { "mp4", "avi", "rmvb" }; |  |   |  |     public static final String[] DEFAULT_ALLOWED_EXTENSION = { |  |             // 图片 |  |             "bmp", "gif", "jpg", "jpeg", "png", |  |             // word excel powerpoint |  |             "doc", "docx", "xls", "xlsx", "ppt", "pptx", "html", "htm", "txt", |  |             // 压缩文件 |  |             "rar", "zip", "gz", "bz2", |  |             // 视频格式 |  |             "mp4", "avi", "rmvb", |  |             // pdf |  |             "pdf" }; |  |   |  |     public static String getExtension(String prefix) |  |     { |  |         switch (prefix) |  |         { |  |             case IMAGE_PNG: |  |                 return "png"; |  |             case IMAGE_JPG: |  |                 return "jpg"; |  |             case IMAGE_JPEG: |  |                 return "jpeg"; |  |             case IMAGE_BMP: |  |                 return "bmp"; |  |             case IMAGE_GIF: |  |                 return "gif"; |  |             default: |  |                 return ""; |  |         } |  |     } |  | } | 
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