添加新的靜態(tài)目錄，原有static目錄需要重新編譯之后才能訪問到新增的圖片

新的靜態(tài)目錄

    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        // 前面的upload意思是门扇，訪問的時候路徑上要加上upload河泳，不然也訪問不到贵少。
        // 后面的upload意思是，你圖片上傳的路徑峻呕，我的圖片上傳就在upload文件中(新創(chuàng)建的的文件夾)。
        registry.addResourceHandler("/upload/**").addResourceLocations("file:upload/");
    }

ImageUploadController

package com.example.demo.controller;

import com.example.demo.utils.Result;
import jakarta.servlet.http.HttpServletRequest;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;

import java.io.File;
import java.io.IOException;
import java.net.InetAddress;

@RestController
public class ImageUploadController {
    private static final String UPLOAD_DIR = System.getProperty("user.dir") + "\\upload\\images\\";

    @PostMapping("/upload")
    public Result uploadImage(@RequestParam MultipartFile file, @RequestParam String type, HttpServletRequest request) {
        if (file.isEmpty()) {
            return Result.error();
        }
        String fileName = file.getOriginalFilename();
        String suffixName = fileName.substring(fileName.lastIndexOf("."));
        // 解決中文問題趣效，liunx下中文路徑瘦癌，圖片顯示問題
        // fileName = UUID.randomUUID() + suffixName;
        File dest = new File(UPLOAD_DIR + fileName);
        // 檢測是否存在目錄
        if (!dest.getParentFile().exists()) {
            dest.getParentFile().mkdirs();
        }
        try {
            file.transferTo(dest);
            // 獲取當前服務的IP地址
            String serverIP = InetAddress.getLocalHost().getHostAddress();
            System.out.println(serverIP);
            // 獲取當前服務的端口號
            String serverPort = request.getServerPort() + "";
            System.out.println(serverPort);
            return Result.ok("http://" + serverIP + ":" + serverPort + "/upload/images/" + fileName);
        } catch (IllegalStateException e) {
            e.printStackTrace();
            return Result.error();
        } catch (IOException e) {
            e.printStackTrace();
            return Result.error();
        }
    }
}