FastDFS 服务端安装参考文章：分布式文件系统之 FastDFS
安装 FastDFS Java 客户端
先从 GitHub 上将项目源码克隆下来：
$ git clone https://github.com/happyfish100/fastdfs-client-java.git然后不要忘了部署到 Nexus 依赖私服：
$ mvn clean install deploy最后在需要用到的项目中添加 POM 依赖即可：
<!-- FastDFS Begin --><dependency> <groupId>org.csource</groupId> <artifactId>fastdfs-client-java</artifactId> <version>1.27-SNAPSHOT</version></dependency><!-- FastDFS End -->引入依赖以后在 application.yml 中添加 FastDFS 服务端配置：
fastdfs: base: # 一般为 Nginx 代理地址 url: ip}/storage: type: fastdfs fastdfs: tracker_server: {tracker_server ip}创建 FastDFS 工具类
定义文件存储接口
package com.antoniopeng.fastdfs.service.upload;/** * 文件存储服务接口 */public interface StorageService { /** * 上传文件 * * @param data 文件的二进制内容 * @param extName 扩展名 * @return 上传成功后返回生成的文件 id；失败返回 null */ public String upload(byte[] data, String extName); /** * 删除文件 * * @param fileId 被删除的文件id * @return 删除成功后返回 0，失败后返回错误代码 */ public int delete(String fileId);}实现文件存储接口
package com.antoniopeng.fastdfs.service.upload;import org.csource.common.NameValuePair;import org.csource.fastdfs.ClientGlobal;import org.csource.fastdfs.StorageClient1;import org.csource.fastdfs.StorageServer;import org.csource.fastdfs.TrackerClient;import org.csource.fastdfs.TrackerGroup;import org.csource.fastdfs.TrackerServer;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.springframework.beans.factory.InitializingBean;import org.springframework.beans.factory.annotation.Value;import java.io.File;import java.io.FileWriter;import java.io.IOException;import java.io.PrintWriter;/** * 文件存储服务实现 */public class FastDFSStorageService implements StorageService, InitializingBean { private static final Logger logger = LoggerFactory.getLogger(FastDFSStorageService.class); private TrackerClient trackerClient; @Value("${storage.fastdfs.tracker_server}") private String trackerServer; @Override public String upload(byte[] data, String extName) { TrackerServer trackerServer = null; StorageServer storageServer = null; StorageClient1 storageClient1 = null; try { NameValuePair[] meta_list = null; // new NameValuePair[0]; trackerServer = trackerClient.getConnection(); if (trackerServer == null) { logger.error("getConnection return null"); } storageServer = trackerClient.getStoreStorage(trackerServer); storageClient1 = new StorageClient1(trackerServer, storageServer); String fileid = storageClient1.upload_file1(data, extName, meta_list); logger.debug("uploaded file <{}>", fileid); return fileid; } catch (Exception ex) { logger.error("Upload fail", ex); return null; } finally { if (storageServer != null) { try { storageServer.close(); } catch (IOException e) { e.printStackTrace(); } } if (trackerServer != null) { try { trackerServer.close(); } catch (IOException e) { e.printStackTrace(); } } storageClient1 = null; } } @Override public int delete(String fileId) { TrackerServer trackerServer = null; StorageServer storageServer = null; StorageClient1 storageClient1 = null; int index = fileId.indexOf('/'); String groupName = fileId.substring(0, index); try { trackerServer = trackerClient.getConnection(); if (trackerServer == null) { logger.error("getConnection return null"); } storageServer = trackerClient.getStoreStorage(trackerServer, groupName); storageClient1 = new StorageClient1(trackerServer, storageServer); int result = storageClient1.delete_file1(fileId); return result; } catch (Exception ex) { logger.error("Delete fail", ex); return 1; } finally { if (storageServer != null) { try { storageServer.close(); } catch (IOException e) { e.printStackTrace(); } } if (trackerServer != null) { try { trackerServer.close(); } catch (IOException e) { e.printStackTrace(); } } storageClient1 = null; } } @Override public void afterPropertiesSet() throws Exception { File confFile = File.createTempFile("fastdfs", ".conf"); PrintWriter confWriter = new PrintWriter(new FileWriter(confFile)); confWriter.println("tracker_server=" + trackerServer); confWriter.close(); ClientGlobal.init(confFile.getAbsolutePath()); confFile.delete(); TrackerGroup trackerGroup = ClientGlobal.g_tracker_group; trackerClient = new TrackerClient(trackerGroup); logger.info("Init FastDFS with tracker_server : {}", trackerServer); }}创建文件存储工厂类
package com.antoniopeng.fastdfs.service.upload;import org.springframework.beans.factory.FactoryBean;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.beans.factory.annotation.Value;import org.springframework.beans.factory.config.AutowireCapableBeanFactory;import java.util.HashMap;import java.util.Map;/** * 文件存储服务工厂类 */public class StorageFactory implements FactoryBean<StorageService> { @Autowired private AutowireCapableBeanFactory acbf; /** * 存储服务的类型，目前仅支持fastdfs */ @Value("${storage.type}") private String type; private Map<String, Class<? extends StorageService>> classMap; public StorageFactory() { classMap = new HashMap<>(); classMap.put("fastdfs", FastDFSStorageService.class); } @Override public StorageService getObject() throws Exception { Class<? extends StorageService> clazz = classMap.get(type); if (clazz == null) { throw new RuntimeException("Unsupported storage type [" + type + "], valid are " + classMap.keySet()); } StorageService bean = clazz.newInstance(); acbf.autowireBean(bean); acbf.initializeBean(bean, bean.getClass().getSimpleName()); return bean; } @Override public Class<?> getObjectType() { return StorageService.class; } @Override public boolean isSingleton() { return true; }}配置文件存储工厂类
package com.antoniopeng.fastdfs.service.upload;import org.springframework.context.annotation.Bean;import org.springframework.context.annotation.Configuration;/** * Java 配置方式定义 StorageFactory 的 Bean 使其可以被依赖注入 */@Configurationpublic class FastDFSConfiguration { @Bean public StorageFactory storageFactory() { return new StorageFactory(); }}创建 FastDFS 访问控制器
package com.antoniopeng.fastdfs.controller.upload;import com.antoniopeng.fastdfs.service.upload.StorageService;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.beans.factory.annotation.Value;import org.springframework.web.bind.annotation.CrossOrigin;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestMethod;import org.springframework.web.bind.annotation.RestController;import org.springframework.web.multipart.MultipartFile;import java.io.IOException;import java.util.ArrayList;import java.util.HashMap;import java.util.List;import java.util.Map;@CrossOrigin(origins = "*", maxAge = 3600)@RestControllerpublic class UploadController { @Value("${fastdfs.base.url}") private String FASTDFS_BASE_URL; @Autowired private StorageService storageService; /** * 文件上传 * * @param dropFile Dropzone * @param editorFiles wangEditor * @return */ @RequestMapping(value = "upload", method = RequestMethod.POST) public Map<String, Object> upload(MultipartFile dropFile, MultipartFile[] editorFiles) { Map<String, Object> result = new HashMap<>(); // Dropzone 上传 if (dropFile != null) { result.put("fileName", writeFile(dropFile)); } // wangEditor 上传 if (editorFiles != null && editorFiles.length > 0) { List<String> fileNames = new ArrayList<>(); for (MultipartFile editorFile : editorFiles) { fileNames.add(writeFile(editorFile)); } result.put("errno", 0); result.put("data", fileNames); } return result; } /** * 将图片写入指定目录 * * @param multipartFile * @return 返回文件完整路径 */ private String writeFile(MultipartFile multipartFile) { // 获取文件后缀 String oName = multipartFile.getOriginalFilename(); String extName = oName.substring(oName.lastIndexOf(".") + 1); // 文件存放路径 String url = null; try { String uploadUrl = storageService.upload(multipartFile.getBytes(), extName); url = FASTDFS_BASE_URL + uploadUrl; } catch (IOException e) { e.printStackTrace(); } // 返回文件完整路径 return url; }}- 文章作者：彭超
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FastDFS服务端安装参考文章：分布式文件系统之FastDFS安装FastDFSJava客户端先从GitHub上将项目源码克隆下来：$gitclonehttps://github.com/happyfish100/fastdfs-client-java.git然后不要忘了部署到Nexus依赖私服：$mvncleaninstalldeploy最后在需要用到的项目中添加POM依赖即可：<!--
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