Java 依据文件名后缀，获取Content-Type/Mime类型

女爷i 2023-10-10 13:53 53阅读 0赞

**枚举类代码MimeTypeEnum**

import org.apache.commons.lang3.StringUtils;
    import lombok.Getter;
    
    /**
     * 依据文件后缀名返回ContentType
     * @author zzg
     *
     */
    @Getter
    public enum MimeTypeEnum {
    
        AAC("acc", "AAC音频", "audio/aac"),
    
        ABW("abw", "AbiWord文件", "application/x-abiword"),
    
        ARC("arc", "存档文件", "application/x-freearc"),
    
        AVI("avi", "音频视频交错格式", "video/x-msvideo"),
    
        AZW("azw", "亚马逊Kindle电子书格式", "application/vnd.amazon.ebook"),
    
        BIN("bin", "任何类型的二进制数据", "application/octet-stream"),
    
        BMP("bmp", "Windows OS / 2位图图形", "image/bmp"),
    
        BZ("bz", "BZip存档", "application/x-bzip"),
    
        BZ2("bz2", "BZip2存档", "application/x-bzip2"),
    
        CSH("csh", "C-Shell脚本", "application/x-csh"),
    
        CSS("css", "级联样式表（CSS）", "text/css"),
    
        CSV("csv", "逗号分隔值（CSV）", "text/csv"),
    
        DOC("doc", "微软Word文件", "application/msword"),
    
        DOCX("docx", "Microsoft Word（OpenXML）", "application/vnd.openxmlformats-officedocument.wordprocessingml.document"),
    
        EOT("eot", "MS Embedded OpenType字体", "application/vnd.ms-fontobject"),
    
        EPUB("epub", "电子出版物（EPUB）", "application/epub+zip"),
    
        GZ("gz", "GZip压缩档案", "application/gzip"),
    
        GIF("gif", "图形交换格式（GIF）", "image/gif"),
    
        HTM("htm", "超文本标记语言（HTML）", "text/html"),
    
        HTML("html", "超文本标记语言（HTML）", "text/html"),
    
        ICO("ico", "图标格式", "image/vnd.microsoft.icon"),
    
        ICS("ics", "iCalendar格式", "text/calendar"),
    
        JAR("jar", "Java存档", "application/java-archive"),
    
        JPEG("jpeg", "JPEG图像", "image/jpeg"),
    
        JPG("jpg", "JPEG图像", "image/jpeg"),
    
        JS("js", "JavaScript", "text/javascript"),
    
        JSON("json", "JSON格式", "application/json"),
    
        JSONLD("jsonld", "JSON-LD格式", "application/ld+json"),
    
        MID("mid", "乐器数字接口（MIDI）", "audio/midi"),
    
        MIDI("midi", "乐器数字接口（MIDI）", "audio/midi"),
    
        MJS("mjs", "JavaScript模块", "text/javascript"),
    
        MP3("mp3", "MP3音频", "audio/mpeg"),
    
        MPEG("mpeg", "MPEG视频", "video/mpeg"),
    
        MPKG("mpkg", "苹果安装程序包", "application/vnd.apple.installer+xml"),
    
        ODP("odp", "OpenDocument演示文稿文档", "application/vnd.oasis.opendocument.presentation"),
    
        ODS("ods", "OpenDocument电子表格文档", "application/vnd.oasis.opendocument.spreadsheet"),
    
        ODT("odt", "OpenDocument文字文件", "application/vnd.oasis.opendocument.text"),
    
        OGA("oga", "OGG音讯", "audio/ogg"),
    
        OGV("ogv", "OGG视频", "video/ogg"),
    
        OGX("ogx", "OGG", "application/ogg"),
    
        OPUS("opus", "OPUS音频", "audio/opus"),
    
        OTF("otf", "otf字体", "font/otf"),
    
        PNG("png", "便携式网络图形", "image/png"),
    
        PDF("pdf", "Adobe 可移植文档格式（PDF）", "application/pdf"),
    
        PHP("php", "php", "application/x-httpd-php"),
    
        PPT("ppt", "Microsoft PowerPoint", "application/vnd.ms-powerpoint"),
    
        PPTX("pptx", "Microsoft PowerPoint（OpenXML）", "application/vnd.openxmlformats-officedocument.presentationml.presentation"),
    
        RAR("rar", "RAR档案", "application/vnd.rar"),
    
        RTF("rtf", "富文本格式", "application/rtf"),
    
        SH("sh", "Bourne Shell脚本", "application/x-sh"),
    
        SVG("svg", "可缩放矢量图形（SVG）", "image/svg+xml"),
    
        SWF("swf", "小型Web格式（SWF）或Adobe Flash文档", "application/x-shockwave-flash"),
    
        TAR("tar", "磁带存档（TAR）", "application/x-tar"),
    
        TIF("tif", "标记图像文件格式（TIFF）", "image/tiff"),
    
        TIFF("tiff", "标记图像文件格式（TIFF）", "image/tiff"),
    
        TS("ts", "MPEG传输流", "video/mp2t"),
    
        TTF("ttf", "ttf字体", "font/ttf"),
    
        TXT("txt", "文本（通常为ASCII或ISO 8859- n", "text/plain"),
    
        VSD("vsd", "微软Visio", "application/vnd.visio"),
    
        WAV("wav", "波形音频格式", "audio/wav"),
    
        WEBA("weba", "WEBM音频", "audio/webm"),
    
        WEBM("webm", "WEBM视频", "video/webm"),
    
        WEBP("webp", "WEBP图像", "image/webp"),
    
        WOFF("woff", "Web开放字体格式（WOFF）", "font/woff"),
    
        WOFF2("woff2", "Web开放字体格式（WOFF）", "font/woff2"),
    
        XHTML("xhtml", "XHTML", "application/xhtml+xml"),
    
        XLS("xls", "微软Excel", "application/vnd.ms-excel"),
    
        XLSX("xlsx", "微软Excel（OpenXML）", "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"),
    
        XML("xml", "XML", "application/xml"),
    
        XUL("xul", "XUL", "application/vnd.mozilla.xul+xml"),
    
        ZIP("zip", "ZIP", "application/zip"),
    
        MIME_3GP("3gp", "3GPP audio/video container", "video/3gpp"),
    
        MIME_3GP_WITHOUT_VIDEO("3gp", "3GPP audio/video container doesn't contain video", "audio/3gpp2"),
    
        MIME_3G2("3g2", "3GPP2 audio/video container", "video/3gpp2"),
    
        MIME_3G2_WITHOUT_VIDEO("3g2", "3GPP2 audio/video container  doesn't contain video", "audio/3gpp2"),
    
        MIME_7Z("7z", "7-zip存档", "application/x-7z-compressed");
    
       //扩展名
        private final String extension;
        //说明
        private final String explain;
        //contentType/mime类型
        private final String mimeType;
    
        /**
         * @param extension 上传的文件扩展名
         * @param explain   类型说明
         * @param mimeType  Mime对应的类型
         */
        MimeTypeEnum(String extension, String explain, String mimeType) {
            this.extension = extension;
            this.explain = explain;
            this.mimeType = mimeType;
        }
    
        /**
         * 通过扩展名获取枚举类型
         *
         * @param extension 扩展名
         * @return 枚举类
         */
        public static MimeTypeEnum getByExtension(String extension) {
            if (StringUtils.isEmpty(extension)) {
                return null;
            }
            for (MimeTypeEnum typesEnum : MimeTypeEnum.values()) {
                if (extension.equalsIgnoreCase(typesEnum.getExtension())) {
                    return typesEnum;
                }
            }
            return null;
        }
    
        /**
         * Content-Type常用对照
         * 根据后缀获取Mime
         *
         * @param fileType 扩展名
         * @return mime类型
         */
        public static String getContentType(String fileType) {
            MimeTypeEnum mimeTypeEnum = MimeTypeEnum.getByExtension(fileType);
            if (mimeTypeEnum != null) {
                return mimeTypeEnum.getMimeType();
            }
            return "application/octet-stream";
        }
    
    }

Java Main测试方法

public static void main(String[] args) throws Exception {       
            log.info(MimeTypeEnum.getContentType("zip"));
            MimeTypeEnum mimeTypeEnum = MimeTypeEnum.getByExtension("zip");
            log.info(mimeTypeEnum.getExplain()+ "  "+mimeTypeEnum.getMimeType()+ "   "+mimeTypeEnum.getExtension());
        }

Java Main 方法结果输出

2020-11-02 11:13:59 INFO [Class:c.l.c.u.o.OSSUtil->Thread:main] application/zip 
    2020-11-02 11:13:59 INFO [Class:c.l.c.u.o.OSSUtil->Thread:main] ZIP  application/zip   zip