廊坊企业网站服务,珠海左右创意园网站开发,小程序公司排名前十,国内三大oa系统在Spring Cloud封装的Feign中并不直接支持传文件#xff0c;但可以通过引入Feign的扩展包来实现#xff0c;本来就来具体说说如何实现。
服务提供方#xff08;接收文件#xff09;
服务提供方的实现比较简单#xff0c;就按Spring MVC的正常实现方式即可#xff0c;比…在Spring Cloud封装的Feign中并不直接支持传文件但可以通过引入Feign的扩展包来实现本来就来具体说说如何实现。
服务提供方接收文件
服务提供方的实现比较简单就按Spring MVC的正常实现方式即可比如
EnableFeignClientsEnableDiscoveryClientSpringBootApplicationpublic class Application { RestController public class UploadController { PostMapping(value /uploadFile, consumes MediaType.MULTIPART_FORM_DATA_VALUE) public String handleFileUpload(RequestPart(value file) MultipartFile file) { return file.getName(); } } public static void main(String[] args) { new SpringApplicationBuilder(Application.class).web(true).run(args); }}服务消费方发送文件
在服务消费方由于会使用Feign客户端所以在这里需要在引入feign对表单提交的依赖具体如下
dependency groupIdio.github.openfeign.form/groupId artifactIdfeign-form/artifactId version3.0.3/version/dependencydependency groupIdio.github.openfeign.form/groupId artifactIdfeign-form-spring/artifactId version3.0.3/version/dependencydependency groupIdcommons-fileupload/groupId artifactIdcommons-fileupload/artifactId version1.3.3/version/dependency定义文件上传方的应用主类和FeignClient假设服务提供方的服务名为eureka-feign-upload-server
EnableFeignClientsEnableDiscoveryClientSpringBootApplicationpublic class Application { public static void main(String[] args) { new SpringApplicationBuilder(Application.class).web(true).run(args); }}FeignClient(value upload-server, configuration UploadService.MultipartSupportConfig.class)public interface UploadService { PostMapping(value /uploadFile, consumes MediaType.MULTIPART_FORM_DATA_VALUE) String handleFileUpload(RequestPart(value file) MultipartFile file); Configuration class MultipartSupportConfig { Bean public Encoder feignFormEncoder() { return new SpringFormEncoder(); } } }在启动了服务提供方之后尝试在服务消费方编写测试用例来通过上面定义的Feign客户端来传文件比如
Slf4jRunWith(SpringJUnit4ClassRunner.class)SpringBootTestpublic class UploadTester { Autowired private UploadService uploadService; Test SneakyThrows public void testHandleFileUpload() { File file new File(upload.txt); DiskFileItem fileItem (DiskFileItem) new DiskFileItemFactory().createItem(file, MediaType.TEXT_PLAIN_VALUE, true, file.getName()); try (InputStream input new FileInputStream(file); OutputStream os fileItem.getOutputStream()) { IOUtils.copy(input, os); } catch (Exception e) { throw new IllegalArgumentException(Invalid file: e, e); } MultipartFile multi new CommonsMultipartFile(fileItem); log.info(uploadService.handleFileUpload(multi)); }}完整示例
读者可以根据喜好选择下面的两个仓库中查看eureka-feign-upload-server和eureka-feign-upload-client两个项目
Githubhttps://github.com/dyc87112/SpringCloud-Learning/Giteehttps://gitee.com/didispace/SpringCloud-Learning/
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