这篇文章主要介绍了springcloud怎么使用Feign后台内部传递MultipartFile，具有一定借鉴价值，感兴趣的朋友可以参考下，希望大家阅读完这篇文章之后大有收获，下面让小编带着大家一起了解一下。
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import feign.codec.Encoder;
import feign.form.spring.SpringFormEncoder;
import org.springframework.cloud.openfeign.FeignClient;
import org.springframework.context.annotation.Bean;
import org.springframework.http.MediaType;
import org.springframework.web.bind.annotation.DeleteMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RequestPart;
import org.springframework.web.multipart.MultipartFile;
/**
* @author linli
* @date 20-06-27
*/
@FeignClient(value = "upload", fallbackFactory = UploadFallbackFactory.class, configuration = UploadClient.MultipartSupportConfig.class)
public interface UploadClient {
@PostMapping(path = "/upload-text", consumes = MediaType.MULTIPART_FORM_DATA_VALUE)
String uploadText(@RequestPart(name = "file") MultipartFile file);
/**
* 引用配置类MultipartSupportConfig.并且实例化
*/
class MultipartSupportConfig {
@Bean
public Encoder feignFormEncoder() {
return new SpringFormEncoder();
}
}
}若SpringFormEncoder 引入报错，加上下面的依赖
<dependency>
<groupId>io.github.openfeign.form</groupId>
<artifactId>feign-form</artifactId>
<version>3.3.0</version>
</dependency>
<dependency>
<groupId>io.github.openfeign.form</groupId>
<artifactId>feign-form-spring</artifactId>
<version>3.3.0</version>
</dependency>private String uploadFile(String str) {
FileOutputStream fos = null;
FileInputStream fis = null;
MultipartFile multipartFile = null;
byte[] bt = str.getBytes();
File file = null;
try {
file = File.createTempFile("file" + UUID.randomUUID(), ".txt");
fos = new FileOutputStream(file);
fos.write(bt, 0, bt.length);
fis = new FileInputStream(file);
multipartFile = new MockMultipartFile("file", file.getName(),
MediaType.TEXT_PLAIN_VALUE, fis);
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (fis != null) {
try {
fis.close();
} catch (IOException e) {
e.printStackTrace();
}
}
if (fos != null) {
try {
fos.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
return uploadClient.uploadText(multipartFile);
}
通过调用服务进行文件上传，避免每个需要上传文件的模块都写一遍上传服务，造成代码冗余。
本文主要包含通过feign进行文件上传模块。
使技术人员在开发过程中遇到问题时有地可查，有章可循。
添加依赖
<dependency>
<groupId>io.github.openfeign.form</groupId>
<artifactId>feign-form</artifactId>
<version>3.0.3</version>
</dependency>
<dependency>
<groupId>io.github.openfeign.form</groupId>
<artifactId>feign-form-spring</artifactId>
<version>3.0.3</version>
</dependency>添加配置文件
package com.ruiyi.twowayreferral.configurer;
import feign.codec.Encoder;
import feign.form.spring.SpringFormEncoder;
import org.springframework.beans.factory.ObjectFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.http.HttpMessageConverters;
import org.springframework.cloud.openfeign.support.SpringEncoder;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
@Configuration
public class MultipartSupportConfig {
@Autowired
private ObjectFactory<HttpMessageConverters> messageConverters;
@Bean
public Encoder feignFormEncoder() {
return new SpringFormEncoder(new SpringEncoder(messageConverters));
}
}代码示例
@FeignClient(value = "controller-center")
public interface CallFrignService {
/**
* @Create 文件上传 wanggx_ruiyi 2019.11.15
* @param uploadPath 文件上传地址
* @param file 上传的文件
* @return
*/
@PostMapping(value = "/api/v1/common/file/fileUpload",consumes = MediaType.MULTIPART_FORM_DATA_VALUE)
String fileUpload(@RequestParam(value = "uploadPath", required = true) String uploadPath,@RequestPart(value = "file", required = true) MultipartFile file);
}感谢你能够认真阅读完这篇文章，希望小编分享的“springcloud怎么使用Feign后台内部传递MultipartFile”这篇文章对大家有帮助，同时也希望大家多多支持亿速云，关注亿速云行业资讯频道，更多相关知识等着你来学习!
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