如何用Java实现CMS系统的图片上传功能

<dependencies>
  <dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-web</artifactId>
  </dependency>
  <dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-thymeleaf</artifactId>
  </dependency>
  <dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-jpa</artifactId>
  </dependency>
</dependencies>

<form action="/upload" method="POST" enctype="multipart/form-data">
  <input type="file" name="file" accept="image/*">
  <button type="submit">上传</button>
</form>

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.multipart.MultipartFile;

@Controller
public class ImageUploadController {

  @PostMapping("/upload")
  public String handleFileUpload(@RequestParam("file") MultipartFile file) {
    // 获取上传的文件名
    String fileName = file.getOriginalFilename();

    // 根据需要保存文件的路径，可以是本地磁盘或云存储
    String filePath = "/path/to/save/" + fileName;

    // 保存文件到指定路径
    try {
      file.transferTo(new File(filePath));
    } catch (IOException e) {
      // 处理文件保存失败的异常
    }

    // 返回成功页面或其他逻辑
    return "success";
  }
}

# 设置上传文件的最大大小
spring.servlet.multipart.max-file-size=10MB
spring.servlet.multipart.max-request-size=10MB