文件上传方式三（若伊版本）

最新推荐文章于 2025-04-12 20:10:21 发布

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最新推荐文章于 2025-04-12 20:10:21 发布

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#java #开发语言

文章描述了一个Java项目中的工具类，如MimeTypeUtils用于处理文件扩展名，FileUploadUtils负责文件上传、命名、大小验证和加密，以及ServerConfig类提供URL配置。主要内容涉及文件上传路径管理、文件名处理、大小限制和安全加密措施。

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1.准备配置类

package com.ruoyi.screen.core;

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 "";
        }
    }
}

2工具类配置

1.获取上传文件后的url配置

@Component
public class ServerConfig
{
    /**
     * 获取完整的请求路径，包括：域名，端口，上下文访问路径
     * 
     * @return 服务地址
     */
    public String getUrl()
    {
        HttpServletRequest request = ServletUtils.getRequest();
        return getDomain(request);
    }

    public static String getDomain(HttpServletRequest request)
    {
        StringBuffer url = request.getRequestURL();
        String contextPath = request.getServletContext().getContextPath();
        return url.delete(ur

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