使用Feign传文件

2-Dalston版教程示例/eureka-feign-upload-client/pom.xml

@@ -0,0 +1,90 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+	<modelVersion>4.0.0</modelVersion>
+
+	<groupId>com.didispace</groupId>
+	<artifactId>eureka-feign-upload-client</artifactId>
+	<version>1.0.0</version>
+	<packaging>jar</packaging>
+
+	<name>eureka-feign-upload-client</name>
+	<description>Spring Cloud In Action</description>
+
+	<parent>
+		<groupId>org.springframework.boot</groupId>
+		<artifactId>spring-boot-starter-parent</artifactId>
+		<version>1.5.6.RELEASE</version>
+		<relativePath/>
+	</parent>
+
+	<properties>
+		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+		<java.version>1.8</java.version>
+	</properties>
+
+	<dependencies>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-web</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-test</artifactId>
+			<scope>test</scope>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework.cloud</groupId>
+			<artifactId>spring-cloud-starter-eureka</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework.cloud</groupId>
+			<artifactId>spring-cloud-starter-feign</artifactId>
+		</dependency>
+
+		<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>
+		<dependency>
+			<groupId>commons-fileupload</groupId>
+			<artifactId>commons-fileupload</artifactId>
+			<version>1.3.3</version>
+		</dependency>
+
+		<dependency>
+			<groupId>org.projectlombok</groupId>
+			<artifactId>lombok</artifactId>
+			<version>1.16.20</version>
+			<scope>provided</scope>
+		</dependency>
+	</dependencies>
+
+	<dependencyManagement>
+		<dependencies>
+			<dependency>
+				<groupId>org.springframework.cloud</groupId>
+				<artifactId>spring-cloud-dependencies</artifactId>
+				<version>Dalston.SR2</version>
+				<type>pom</type>
+				<scope>import</scope>
+			</dependency>
+		</dependencies>
+	</dependencyManagement>
+
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.springframework.boot</groupId>
+				<artifactId>spring-boot-maven-plugin</artifactId>
+			</plugin>
+		</plugins>
+	</build>
+
+</project>

2-Dalston版教程示例/eureka-feign-upload-client/src/main/java/com/didispace/api/consumer/Application.java

@@ -0,0 +1,18 @@
+package com.didispace.api.consumer;
+
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.builder.SpringApplicationBuilder;
+import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
+import org.springframework.cloud.netflix.feign.EnableFeignClients;
+
+
+@EnableFeignClients
+@EnableDiscoveryClient
+@SpringBootApplication
+public class Application {
+
+    public static void main(String[] args) {
+        new SpringApplicationBuilder(Application.class).web(true).run(args);
+    }
+
+}

2-Dalston版教程示例/eureka-feign-upload-client/src/main/java/com/didispace/api/consumer/UploadService.java

@@ -0,0 +1,27 @@
+package com.didispace.api.consumer;
+
+import feign.codec.Encoder;
+import feign.form.spring.SpringFormEncoder;
+import org.springframework.cloud.netflix.feign.FeignClient;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.http.MediaType;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestPart;
+import org.springframework.web.multipart.MultipartFile;
+
+@FeignClient(value = "eureka-feign-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();
+        }
+    }
+
+}

2-Dalston版教程示例/eureka-feign-upload-client/src/main/resources/application.properties

@@ -0,0 +1,4 @@
+spring.application.name=eureka-feign-upload-client
+server.port=10002
+
+eureka.client.serviceUrl.defaultZone=http://eureka.didispace.com/eureka/

2-Dalston版教程示例/eureka-feign-upload-client/src/test/java/com/didispace/api/consumer/UploadTester.java

@@ -0,0 +1,49 @@
+package com.didispace.api.consumer;
+
+import lombok.SneakyThrows;
+import lombok.extern.slf4j.Slf4j;
+import org.apache.commons.fileupload.disk.DiskFileItem;
+import org.apache.commons.fileupload.disk.DiskFileItemFactory;
+import org.apache.commons.io.IOUtils;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.http.MediaType;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+import org.springframework.web.multipart.MultipartFile;
+import org.springframework.web.multipart.commons.CommonsMultipartFile;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.InputStream;
+import java.io.OutputStream;
+
+@Slf4j
+@RunWith(SpringJUnit4ClassRunner.class)
+@SpringBootTest
+public 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));
+    }
+
+}

2-Dalston版教程示例/eureka-feign-upload-client/upload.txt

@@ -0,0 +1,2 @@
+aaa
+bbb

2-Dalston版教程示例/eureka-feign-upload-server/pom.xml

@@ -0,0 +1,62 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+	<modelVersion>4.0.0</modelVersion>
+
+	<groupId>com.didispace</groupId>
+	<artifactId>eureka-feign-upload-server</artifactId>
+	<version>1.0.0</version>
+	<packaging>jar</packaging>
+
+	<name>eureka-feign-upload-server</name>
+	<description>Spring Cloud In Action</description>
+
+	<parent>
+		<groupId>org.springframework.boot</groupId>
+		<artifactId>spring-boot-starter-parent</artifactId>
+		<version>1.5.6.RELEASE</version>
+		<relativePath/>
+	</parent>
+
+	<properties>
+		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+		<java.version>1.8</java.version>
+	</properties>
+
+	<dependencies>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-web</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework.cloud</groupId>
+			<artifactId>spring-cloud-starter-eureka</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework.cloud</groupId>
+			<artifactId>spring-cloud-starter-feign</artifactId>
+		</dependency>
+	</dependencies>
+
+	<dependencyManagement>
+		<dependencies>
+			<dependency>
+				<groupId>org.springframework.cloud</groupId>
+				<artifactId>spring-cloud-dependencies</artifactId>
+				<version>Dalston.SR2</version>
+				<type>pom</type>
+				<scope>import</scope>
+			</dependency>
+		</dependencies>
+	</dependencyManagement>
+
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.springframework.boot</groupId>
+				<artifactId>spring-boot-maven-plugin</artifactId>
+			</plugin>
+		</plugins>
+	</build>
+
+</project>

2-Dalston版教程示例/eureka-feign-upload-server/src/main/java/com/didispace/api/consumer/Application.java

@@ -0,0 +1,32 @@
+package com.didispace.api.consumer;
+
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.builder.SpringApplicationBuilder;
+import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
+import org.springframework.cloud.netflix.feign.EnableFeignClients;
+import org.springframework.http.MediaType;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestPart;
+import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.multipart.MultipartFile;
+
+@EnableFeignClients
+@EnableDiscoveryClient
+@SpringBootApplication
+public 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);
+    }
+
+}

2-Dalston版教程示例/eureka-feign-upload-server/src/main/resources/application.properties

@@ -0,0 +1,4 @@
+spring.application.name=eureka-feign-upload-server
+server.port=10001
+
+eureka.client.serviceUrl.defaultZone=http://eureka.didispace.com/eureka/

README.md

@@ -28,6 +28,7 @@
 - [Spring Cloud构建微服务架构：服务消费者（基础）](http://blog.didispace.com/spring-cloud-starter-dalston-2-1/)
 - [Spring Cloud构建微服务架构：服务消费者（Ribbon）](http://blog.didispace.com/spring-cloud-starter-dalston-2-2/)
 - [Spring Cloud构建微服务架构：服务消费者（Feign）](http://blog.didispace.com/spring-cloud-starter-dalston-2-3/)
+- [Spring Cloud构建微服务架构：服务消费者（Feign）传文件](http://blog.didispace.com/spring-cloud-starter-dalston-2-4/)
 - [Spring Cloud构建微服务架构：分布式配置中心](http://blog.didispace.com/spring-cloud-starter-dalston-3)
 - [Spring Cloud构建微服务架构：服务容错保护(Hystrix服务降级)](http://blog.didispace.com/spring-cloud-starter-dalston-4-1)
 - [Spring Cloud构建微服务架构：服务容错保护(Hystrix依赖隔离)](http://blog.didispace.com/spring-cloud-starter-dalston-4-2)