fastdfs5.x Java客户端简单例子

下载源码, 使用maven编译并安装

https://github.com/happyfish100/fastdfs-client-java.git

新建maven工程,引入fastdfs-client-java

<?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>cn.xiaojf</groupId>
    <artifactId>fastdfs-demo</artifactId>
    <version>1.0-SNAPSHOT</version>

    <dependencies>
        <dependency>
            <groupId>org.csource</groupId>
            <artifactId>fastdfs-client-java</artifactId>
            <version>1.27-SNAPSHOT</version>
        </dependency>
    </dependencies>

</project>

属性文件  fastdfs-client.properties

## 客户端连接超时时间
fastdfs.connect_timeout_in_seconds = 5
## 客户端网络超时时间
fastdfs.network_timeout_in_seconds = 30
## 编码格式
fastdfs.charset = UTF-8

fastdfs.http_anti_steal_token = false
fastdfs.http_secret_key = FastDFS1234567890
## fastdfs tracker server 的http 端口号
fastdfs.http_tracker_http_port = 80
## fastdfs tracker server的地址
fastdfs.tracker_servers = 192.168.1.19:22122

上传

package cn.xiaojf.fastdfs;

import org.csource.common.MyException;
import org.csource.common.NameValuePair;
import org.csource.fastdfs.*;

import java.io.File;
import java.io.IOException;

/**
 * 上传
 * @author xiaojf 2017/6/28 15:59
 */
public class UploadDemo {
    private static StorageClient1 client = null;
    static {
        try {
            ClientGlobal.initByProperties("fastdfs-client.properties");
            TrackerClient trackerClient = new TrackerClient();
            TrackerServer trackerServer = trackerClient.getConnection();

            if (trackerServer == null) {
                throw new RuntimeException("获取Tracker server 发生异常");
            }

            StorageServer storageServer = trackerClient.getStoreStorage(trackerServer);
            client = new StorageClient1(trackerServer,storageServer);
        } catch (IOException e) {
            e.printStackTrace();
        } catch (MyException e) {
            e.printStackTrace();
        }
    }

    /**
     * 上传
     * @param file 文件
     * @author xiaojf 2017/6/28 16:37
     */
    public static String upload(File file) throws IOException, MyException {
        //指定额外的存储信息
        NameValuePair[] nameValuePairs = new NameValuePair[1];
        nameValuePairs[0] = new NameValuePair("filename",file.getName());
        //上传文件
        if (client == null) {
            throw new RuntimeException("fastdfs 客户端未初始化");
        }
        return client.upload_file1(file.getAbsolutePath(), "exe", nameValuePairs);
    }

    public static void main(String[] args) throws IOException, MyException {
        File file = new File("c:/windows/system32/notepad.exe");
        System.out.println(upload(file));
    }
}

下载

package cn.xiaojf.fastdfs;

import org.csource.common.MyException;
import org.csource.common.NameValuePair;
import org.csource.fastdfs.*;

import java.io.IOException;

/**
 * 下载
 * @author xiaojf 2017/6/28 15:59
 */
public class DownloadDemo {
    private static StorageClient1 client = null;
    static {
        try {
            ClientGlobal.initByProperties("fastdfs-client.properties");
            TrackerClient trackerClient = new TrackerClient();
            TrackerServer trackerServer = trackerClient.getConnection();

            if (trackerServer == null) {
                throw new RuntimeException("获取Tracker server 发生异常");
            }

            StorageServer storageServer = trackerClient.getStoreStorage(trackerServer);
            client = new StorageClient1(trackerServer,storageServer);
        } catch (IOException e) {
            e.printStackTrace();
        } catch (MyException e) {
            e.printStackTrace();
        }
    }

    /**
     * 下载
     * @param token fastdfs 上传后返回的字符串
     * @author xiaojf 2017/6/28 16:37
     */
    public static byte[] download(String token) throws IOException, MyException {
        //获取上传时候,写入的文件信息
        NameValuePair[] metadata1 = client.get_metadata1(token);
        for (NameValuePair nameValuePair : metadata1) {
            System.out.println(nameValuePair.getName() + " -> " + nameValuePair.getValue());
        }

        if (client == null) {
            throw new RuntimeException("fastdfs 客户端未初始化");
        }

        //下载,返回文件字节数组
        return client.download_file1(token);
    }

    public static void main(String[] args) throws IOException, MyException {
        System.out.println(DownloadDemo.download("group1/M00/00/00/wKgBE1lTagmAXsRVAAL0ADCuSWA576.exe").length);
    }
}