FastDFS上传图片的简单使用

1. 在虚拟机中运行FastDFS

运行FastDFS

2. pom文件中添加依赖和引入依赖包

<!-- 添加FastDFS客户端的引用 -->
<dependency>
    <groupId>fastdfs_client</groupId>
    <artifactId>fastdfs_client</artifactId>
    <version>1.25</version>
</dependency>

导入fastdfs_client项目，添加到maven仓库中

导入项目
将项目install到maven中

3. 创建FastDFS的配置文件

配置文件

// 内容就是FastDFS服务器地址和端口号
tracker_server=192.168.25.133:22122

4. 简单使用test

    @Test
    public void uploadFile() throws FileNotFoundException, IOException, MyException {
        //1.向工程中添加jar包
        //2.创建一个配置文件，配置tracker服务器的地址
        //3.加载配置文件
        ClientGlobal.init("D:/WorkSpace/project1/taotao-manager-web/src/main/resources/resource/client.conf");
        //4.创建一个TrackerClient对象
        TrackerClient trackerClient = new TrackerClient();
        //5.使用TrackerClient对象获得TrackerServer对象
        TrackerServer trackerServer = trackerClient.getConnection();
        //6.创建一个StorageServer的引用null就可以
        StorageServer storageServer = null;
        //7.创建一个StorageClient对象，TrackerServer StorageServer两个参数
        StorageClient storageClient = new StorageClient(trackerServer, storageServer);
        //8.使用StorageClient对象上传文件
        String[] strings = storageClient.upload_file("C:\\Users\\koax\\Pictures\\20180202135447406.png", "png", null);
        for (String string : strings) {
            System.out.println(string);
        }
    }

spring中使用

/**
 * 图片上传Controller
 * @author koax
 */
@Controller
public class PictureController {
    
     //IMAGE_SERVER_URL=http://192.168.25.133/
    @Value("${IMAGE_SERVER_URL}")
    private String IMAGE_SERVER_URL;
    
    @RequestMapping("/pic/upload")
    @ResponseBody
    public String picUpload(MultipartFile uploadFile) {
        try {
            //接收上传的文件
            //取扩展名
            String originalFilename = uploadFile.getOriginalFilename();
            String extName = originalFilename.substring(originalFilename.lastIndexOf(".")+1);
            //上传到图片服务器
            FastDFSClient fastDFSClient = new FastDFSClient("classpath:resource/client.conf");
            String url = fastDFSClient.uploadFile(uploadFile.getBytes(), extName);
            url = IMAGE_SERVER_URL + url;
            //响应上传图片的url
            Map result = new HashMap<>();
            result.put("error", 0);
            result.put("url", url);
            return JsonUtils.objectToJson(result);
        } catch (Exception e) {
            e.printStackTrace();
            Map result = new HashMap<>();
            result.put("error", 0);
            result.put("message", "图片上传失败");
            return JsonUtils.objectToJson(result);
        }
    }
}