package com.jeff.controller;
import java.io.File;
import java.io.IOException;
import java.util.List;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;
@RestController
public class FileController {
	@PostMapping("/upload")
	public String upload(@RequestParam("files") List<MultipartFile> files) {
		if (files.isEmpty()) {
			return "上傳失敗，未選擇文件";
		}
		for (MultipartFile file : files) {
			String fileName = file.getOriginalFilename();
			// 獲取文件后綴名
			String suffixName = fileName.substring(fileName.lastIndexOf("."));
			// 重新生成文件名
			String fName = System.currentTimeMillis() + suffixName;
			System.out.println("文件名：" + fName);
			String filePath = "F:\\Jeff\\project\\workspace\\mavenDemo\\src\\main\\resources\\static\\";
			File dest = new File(filePath + fName);
			try {
				file.transferTo(dest);
				System.out.println(fName + "上傳成功！");
			} catch (IOException e) {
				System.out.println(fName + "上傳異常！" + e);
				return "error";
			}
		}
		return "success";
	}
}

# 上傳文件總的最大值
spring.servlet.multipart.max-request-size=10MB
# 單個文件的最大值
spring.servlet.multipart.max-file-size=10MB