解锁新技能《springboot基于表单multipart/form-data的文件上传》
springboot的文件上传有多种实现方案，个人比较推荐方案三通过实体类属性绑定的方式，这样可以方便文件及其关联的相关属性字段；
开源依赖pom
<!-- 基于springboot的请求AOP拦截、返回值包装、全局异常处理SDK -->
<dependency>
<groupId>io.github.mingyang66</groupId>
<artifactId>emily-spring-boot-starter</artifactId>
<version>4.3.5</version>
</dependency>
一、单个文件上传及其它属性字段
@PostMapping(value = "/uploadSingle", consumes = MediaType.MULTIPART_FORM_DATA_VALUE)
public String uploadSingle(@RequestParam("file") MultipartFile file, @RequestParam("file1") MultipartFile file1, @RequestParam("name") String name, @RequestParam("desc") String desc) throws IOException {
byte[] fileContent = file.getBytes();
byte[] fileContent1 = file1.getBytes();
// 处理上传的文件内容
return "File uploaded successfully!";
}
二、通过数组方式上传多个文件
@PostMapping(value = "/uploadArray", consumes = MediaType.MULTIPART_FORM_DATA_VALUE)
public String handleFileUpload(@RequestParam("files") MultipartFile[] files) throws IOException {
byte[] fileContent = files[0].getBytes();
// 处理上传的文件内容
return "File uploaded successfully!";
}
三、通过实体类绑定方式上传文件及传递其它属性值
@PostMapping(value = "/uploadMul", consumes = MediaType.MULTIPART_FORM_DATA_VALUE)
public String uploadMul(@ModelAttribute("request") FileUploadRequest request) throws IOException {
byte[] fileContent = request.getFile().getBytes();
byte[] imageFileContent = request.getImageFile().getBytes();
String accountCode = request.getAccountCode();
String address = request.getAddress();
// 处理上传的文件内容
return "File uploaded successfully!";
}
四、通过实体类绑定方式上传多个文件
@PostMapping(value = "/uploadMuls", consumes = MediaType.MULTIPART_FORM_DATA_VALUE)
public String uploadMuls(@ModelAttribute FileUploadRequest[] request) throws IOException {
byte[] fileContent = request[0].getFile().getBytes();
byte[] imageFileContent = request[0].getImageFile().getBytes();
String accountCode = request[0].getAccountCode();
String address = request[0].getAddress();
// 处理上传的文件内容
return "File uploaded successfully!";
}