微信小程序上传文件

项目：spring boot + mybatis plus + spring + redis

测试接口

    @ApiOperation(value = "单文件上传测试接口")
    @PostMapping(value = "/file")
    public String fileUpload(MultipartFile file) {
        if (file.getSize() > 0) {
            System.out.println("上传成功");
        }
        return "";
    }

swagger或postman测试发现，file参数接收不到文件，始终为null。

解决方案：

<!--        <dependency>
            <groupId>commons-io</groupId>
            <artifactId>commons-io</artifactId>
            <version>1.3.2</version>
        </dependency>-->
<!--        <dependency>
            <groupId>commons-fileupload</groupId>
            <artifactId>commons-fileupload</artifactId>
            <version>1.3.2</version>
        </dependency>-->

/*@Configuration
public class MultipartResolverConfig {
    @Bean(name = "multipartResolver")
    public MultipartResolver multipartResolver(){
        CommonsMultipartResolver resolver = new CommonsMultipartResolver();
        //上传文件大小 10M 10*1024*1024
        resolver.setMaxUploadSize(10*1024*1024);
        resolver.setDefaultEncoding("UTF-8");
        return resolver;
    }
}*/

结束