feign调用上传文件接口（MultipartFile）

悠悠 2022-12-08 05:29 195阅读 0赞

1.服务端MultipartFile这个类型的参数要用@RequestPart(“file”) 这个注解

@PostMapping("/uploadMultipleFile")
        public Result uploadImg(@RequestPart("file") MultipartFile[] files){ 
            try { 
                return uploadService.uploadImg(files);
            }catch (Exception e){ 
                log.info("文件上传异常"+ ExceptionUtils.getStackTrace(e));
                return new Result(ResultCode.FAIL,"文件上传异常");
            }
        }

2.调用端加入如下坐标

<dependency>
                <groupId>io.github.openfeign.form</groupId>
                <artifactId>feign-form</artifactId>
                <version>3.8.0</version>
            </dependency>
            
            <dependency>
                <groupId>io.github.openfeign.form</groupId>
                <artifactId>feign-form-spring</artifactId>
                <version>3.8.0</version>
            </dependency>
    
      
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-openfeign</artifactId>
            </dependency>

3.加入配置类

import feign.codec.Encoder;
    import feign.form.spring.SpringFormEncoder;
    import org.springframework.context.annotation.Bean;
    import org.springframework.context.annotation.Configuration;
    import org.springframework.context.annotation.Primary;
    import org.springframework.context.annotation.Scope;
    
    
    @Configuration
    public class MultipartSupportConfig { 
    
        @Bean
        @Primary
        @Scope("prototype")
        public Encoder multipartFormEncoder() { 
            return new SpringFormEncoder();
        }
    
        @Bean
        public feign.Logger.Level multipartLoggerLevel() { 
            return feign.Logger.Level.FULL;
        }
    
    }

4.调用端feign接口

import com.qianxian.common.util.Result;
    import com.qianxian.user.config.MultipartSupportConfig; 
    import org.springframework.cloud.openfeign.FeignClient;
    import org.springframework.http.MediaType;
    import org.springframework.web.bind.annotation.*;
    import org.springframework.web.multipart.MultipartFile;
    
    /** * 上传接口 * @author yyj */
    @FeignClient(name="ldd-upload",configuration =  MultipartSupportConfig.class)
    public interface UploadControllerFeign { 
    
        /** * 图片上传 * @param files * @return */
        @RequestMapping(method = RequestMethod.POST, value = "/uploadMultipleFile",consumes = MediaType.MULTIPART_FORM_DATA_VALUE)
        Result uploadImg(@RequestPart("file") MultipartFile[] files);
    }

5.controller层调用

@PostMapping("/uploadMultipleFile")
        public Result uploadImg(@RequestPart("file") MultipartFile[] files){ 
            try { 
                return uploadControllerFeign.uploadImg(files);
            }catch (Exception e){ 
                log.info("文件上传异常"+ ExceptionUtils.getStackTrace(e));
                return new Result(ResultCode.FAIL,"文件上传异常");
            }
        }