FeignMultipartSupportConfig上传图片配置方式是什么

这篇文章主要介绍FeignMultipartSupportConfig上传图片配置方式是什么，文中介绍的非常详细，具有一定的参考价值，感兴趣的小伙伴们一定要看完！

FeignMultipartSupportConfig上传图片配置

在对应的boot项目上关闭全局的上传图片的配置

@SpringBootApplication@EnableCircuitBreaker@EnableEurekaClient@EnableFeignClients@ComponentScan(excludeFilters = {@ComponentScan.Filter(type = FilterType.ASSIGNABLE_TYPE,value = FeignMultipartSupportConfig.class)})public class BootstrapApplication {    public static void main(String[] args) {      SpringApplication.run(BootstrapApplication.class, args);   }}

在目标feign上面添加

@FeignClient(name = "micro-picture", fallbackFactory = MicroPictureFactory.class, configuration = FeignMultipartSupportConfig.class)public interface MicroPictureClient {@RequestMapping(value = { "/picture/common/upload/{commonKey}" }, method = RequestMethod.POST, consumes = MediaType.MULTIPART_FORM_DATA_VALUE)   public String upload(@RequestPart("image") MultipartFile image, @PathVariable("commonKey") Long commonKey);   }

就可以实现对应的服务做图片的上传，针对的图片微服务就可以实现数据的额接收。

对应配置文件的代码

@Configurationpublic class FeignMultipartSupportConfig {   @Bean   @Primary   @Scope("prototype")   public Encoder multipartFormEncoder() {      return new FeignSpringFormEncoder();   }   @Bean   public feign.Logger.Level multipartLoggerLevel() {      return feign.Logger.Level.FULL;   }}

package com.zhht.config;import feign.RequestTemplate;import feign.codec.EncodeException;import feign.codec.Encoder;import feign.form.ContentType;import feign.form.FormEncoder;import feign.form.MultipartFormContentProcessor;import feign.form.spring.SpringManyMultipartFilesWriter;import feign.form.spring.SpringSingleMultipartFileWriter;import org.springframework.web.multipart.MultipartFile;import java.lang.reflect.Type;import java.util.Collections;import java.util.Map;public class FeignSpringFormEncoder extends FormEncoder {      public FeignSpringFormEncoder() {      this(new Default());   }   public FeignSpringFormEncoder(Encoder delegate) {      super(delegate);      MultipartFormContentProcessor processor = (MultipartFormContentProcessor) this            .getContentProcessor(ContentType.MULTIPART);      processor.addWriter(new SpringSingleMultipartFileWriter());      processor.addWriter(new SpringManyMultipartFilesWriter());   }   public void encode(Object object, Type bodyType, RequestTemplate template) throws EncodeException {      if (bodyType.equals(MultipartFile.class)) {         MultipartFile file = (MultipartFile) object;         if (file != null) {            Map<String, Object> data = Collections.singletonMap("image", object);            super.encode(data, MAP_STRING_WILDCARD, template);            return;         }      } else if (bodyType.equals(MultipartFile[].class)) {         MultipartFile[] file = (MultipartFile[]) object;         if (file != null) {            Map<String, Object> data = Collections.singletonMap("imgList", object);            super.encode(data, MAP_STRING_WILDCARD, template);            return;         }      }      super.encode(object, bodyType, template);   }}

如何使用Feign上传图片

添加依赖，支持SpringEncoder

        <dependency>            <groupId>io.github.openfeign.form</groupId>            <artifactId>feign-form</artifactId>            <version>3.4.1</version>        </dependency>        <dependency>            <groupId>io.github.openfeign.form</groupId>            <artifactId>feign-form-spring</artifactId>            <version>3.4.1</version>        </dependency>

将SpringFormEncoder的默认处理

encoder配置为SpringEncoder

@Configurationpublic class FeignMultipartSupportConfig {    @Bean    public Encoder multipartFormEncoder(ObjectFactory<HttpMessageConverters> messageConverters) {        return new SpringFormEncoder(new SpringEncoder(messageConverters));    }}

编写client

@FeignClient(value = "****",        fallbackFactory = UploadClientFallbackFactory.class       , configuration = FeignMultipartSupportConfig.class)public interface UploadClient {        @PostMapping(value = "/tbk/feedback/upload",            produces = {MediaType.APPLICATION_JSON_UTF8_VALUE},            consumes = MediaType.MULTIPART_FORM_DATA_VALUE)    BaseResponse<String> uploadImage(@RequestPart("file") MultipartFile file);}

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