fastDfs与spring boot集成

搭建fastDfs服务端请参考 http://www.imooc.com/article/66981?block_id=tuijian_wz

导入fastdfs客户端依赖包

<dependency>
    <groupId>net.oschina.zcx7878</groupId>
    <artifactId>fastdfs-client-java</artifactId>
    <version>1.27.0.0</version>
</dependency>

StorageClient的代理类BeeStorageClient

package com.declanwu.pub.fastdfs.client;


import org.csource.common.MyException;
import org.csource.fastdfs.StorageClient;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Value;


import java.io.IOException;


public class BeeStorageClient {
    private Logger logger = LoggerFactory.getLogger(this.getClass());
    private StorageClient storageClient;
    @Value("${fastdfs.storage_server}")
    private String storage_server;


    public BeeStorageClient(StorageClient storageClient) throws IOException, MyException {
       this.storageClient = storageClient;
    }


    /**
     * upload file to storage server (by file name)
     *
     * @param local_filename local filename to upload
     * @param file_ext_name  file ext name, do not include dot(.), null to extract ext name from the local filename
     * @return 2 elements string array if success:

     * <ul><li>results[0]: the group name to store the file </li></ul>
     * <ul><li>results[1]: the new created filename</li></ul>
     * return null if fail
     */
    public String[] uploadFile(String local_filename, String file_ext_name) throws IOException, MyException {
        String[] strings;
        try {
            strings = storageClient.upload_file(local_filename, file_ext_name, null);
        } catch (IOException e) {
            // Avoid java.io.IOException: recv package size -1 != 10
            strings = storageClient.upload_file(local_filename, file_ext_name, null);
        }
        return strings;
    }


    /**
     * download file from storage server
     *
     * @param group_name      the group name of storage server
     * @param remote_filename filename on storage server
     * @return file content/buff, return null if fail
     */
    public byte[] downloadFile(String group_name, String remote_filename) throws IOException, MyException {
        return storageClient.download_file(group_name, remote_filename);
    }


    public String getFileUrl(String groupName, String remoteFilename) {
        return this.storage_server + "/" + groupName + "/" + remoteFilename;
    }
}

初始化BeeStorageClient，由spring进行管理

package com.declanwu.pub.fastdfs.init;


import com.declanwu.pub.fastdfs.client.BeeStorageClient;
import org.csource.fastdfs.*;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Value; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import java.util.Properties; @Configuration public class InitConfig { private Logger logger = LoggerFactory.getLogger(this.getClass()); private final static int connect_timeout_in_seconds = 30; private final static int network_timeout_in_seconds = 60; // private final static String tracker_servers = "10.192.10.60:22122"; private final static int http_tracker_http_port = 80; @Value("${fastdfs.tracker_servers}") private String tracker_servers; @Bean("beeStorageClient") public BeeStorageClient storageClientConfiguration() throws Exception { Properties properties = new Properties(); properties.put("fastdfs.connect_timeout_in_seconds", connect_timeout_in_seconds); properties.put("fastdfs.network_timeout_in_seconds", network_timeout_in_seconds); properties.put("fastdfs.tracker_servers", tracker_servers); properties.put("fastdfs.http_tracker_http_port", http_tracker_http_port); // 1、加载配置，配置中的内容就是 tracker 服务的地址。  ClientGlobal.initByProperties(properties); // 2、创建一个 TrackerClient 对象。直接 new 一个。 TrackerClient trackerClient = new TrackerClient(); // 3、使用 TrackerClient 对象创建连接，获得一个 TrackerServer 对象。 TrackerServer trackerServer = trackerClient.getConnection(); // 4、创建一个 StorageServer 的引用，值为 null StorageServer storageServer = null; // 5、创建一个 StorageClient 对象，需要两个参数 TrackerServer 对象、StorageServer 的引用 StorageClient storageClient = new StorageClient(trackerServer, storageServer); return new BeeStorageClient(storageClient); } }

bootstrap.yum中动态设置tracker服务地址和storage的展示地址

fastdfs:
  tracker_servers: ${app.fastdfs.tracker.server:192.168.0.100:22122}
  storage_server: ${app.fastdfs.storage.server:http://192.168.0.100:8080}

调用方式

...
　　@Autowired
　　private BeeStorageClient beeStorageClient;
...
　　　　String[] strings = beeStorageClient.uploadFile("C:\\Users\\Administrator\\Pictures\\timg.jpg", "jpg");
　　　　System.out.println(beeStorageClient.getFileUrl(strings[0], strings[1]));
...