springCloud 传文件

时间:2019-11-18
本文章向大家介绍springCloud 传文件,主要包括springCloud 传文件使用实例、应用技巧、基本知识点总结和需要注意事项,具有一定的参考价值,需要的朋友可以参考一下。
依赖
<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>

服务消费者Service接口
@FeignClient(value = "xqwl-street-provider", configuration = ImsRhinfoZyxqCarService.MultipartSupportConfig.class)
@Service
public interface ImsRhinfoZyxqCarService {
@PostMapping(value = "/ImsRhinfoZyxqSanitationController/upload", consumes = MediaType.MULTIPART_FORM_DATA_VALUE)
R SanitationUpload(@RequestPart(value = "file")MultipartFile file);

@Configuration
class MultipartSupportConfig {
@Bean
public Encoder feignFormEncoder(ObjectFactory<HttpMessageConverters> messageConverters) {
return new FeignSpringFormEncoder(new SpringEncoder(messageConverters));
}
}
}

传文件配置
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.addFirstWriter(new SpringSingleMultipartFileWriter());
processor.addFirstWriter(new SpringManyMultipartFilesWriter());
}
public void encode(Object object, Type bodyType, RequestTemplate template) throws EncodeException {
if (bodyType.equals(MultipartFile.class)) {
MultipartFile file = (MultipartFile) object;
Map<String, Object> data = Collections.singletonMap(file.getName(), 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(file.length==0?"":file[0].getName(), object);
super.encode(data, MAP_STRING_WILDCARD, template);
return;
}
}
super.encode(object, bodyType, template);
}
}
服务提供者接口
@PostMapping(value="upload",produces = MediaType.APPLICATION_JSON_UTF8_VALUE,
consumes = MediaType.MULTIPART_FORM_DATA_VALUE)
public R upload(MultipartFile file){
return sanitationService.importExcel(file);
}

原文地址:https://www.cnblogs.com/-mzh/p/11882412.html