解決方法

其中最關鍵的是: 引數 paramType="query"

@ApiImplicitParam(name = "file", value = "檔案流物件,接收陣列格式", required = true, dataType = "__File",paramType = "query")
    @PostMapping("/importData")
    @ResponseBody
    public Result uploadFile(@RequestParam(value = "file") MultipartFile[] files) throws Exception{
        MultipartFile file 
 
= files[0];
}

原因：

暫時推測為：openApi3.0和Swagger不相容導致

解決之後的效果：

knfie4j的配置檔案如下：

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import springfox.documentation.builders.ApiInfoBuilder;
import springfox.documentation.builders.PathSelectors;
 
import springfox.documentation.builders.RequestHandlerSelectors;
import springfox.documentation.service.Contact;
import springfox.documentation.spi.DocumentationType;
import springfox.documentation.spring.web.plugins.Docket;
import springfox.documentation.swagger2.annotations.EnableSwagger2;

@Configuration
@EnableSwagger2
 
public class Knife4jConfiguration {
    @Bean(value = "defaultApi2")
    public Docket defaultApi2() {
        Docket docket=new Docket(DocumentationType.SWAGGER_2).enable(true)
                .apiInfo(new ApiInfoBuilder()
                        .title("XX匯入服務")
                        .description("XX匯入服務")
                        .termsOfServiceUrl("")
                        .contact(new Contact("lzy","","[email protected]"))
                        .version("1.0")
                        .build())
                //分組名稱
                .groupName("1.0版本")
                .select()
                //這裡指定Controller掃描包路徑
                .apis(RequestHandlerSelectors.basePackage("core.controller"))
                .paths(PathSelectors.any())
                .build();
        return docket;
    }
}

其中引用了springfox包，其中引用了openApi的相關實現程式碼