分享知识-快乐自己：FastDFS 上传 java 源码

2022-10-20 20:46:07

FastDFS 上传 java 源码：点我下载源码

首先导入 POM 文件：解决 maven 不能下载 fastdfs-client-java JAR

<dependency>

    <groupId>org.csource</groupId>

    <artifactId>fastdfs-client-java</artifactId>

    <version>1.27-SNAPSHOT</version>

</dependency>

<dependency>

    <groupId>commons-io</groupId>

    <artifactId>commons-io</artifactId>

    <version>2.4</version>

</dependency>

创建 fdfs_client.conf 文件：

connect_timeout=2
network_timeout=30
charset=UTF-8
http.tracker_http_port=80
http.anti_steal_token=no
http.secret_key=FastDFS1234567890

tracker_server=192.168.31.202:22122 
#对应自己的tracker服务IP地址

或者使用：fastdfs.properties

#FastDFS配置begin-----------除了fastdfs.tracker_servers，其它配置项都是可选的

fastdfs.connect_timeout_in_seconds=5

fastdfs.network_timeout_in_seconds=30

fastdfs.charset=UTF-8

fastdfs.http_anti_steal_token=false

fastdfs.http_secret_key=FastDFS1234567890

fastdfs.http_tracker_http_port=80

fastdfs.tracker_servers=192.168.31.202:22122

#FastDFS配置end-----------

这里只测试了上传一张图片，然后下载这张图片；具体java代码：

package com.gdbd;

import org.apache.commons.io.IOUtils;

import org.csource.common.MyException;

import org.csource.fastdfs.*;

import org.junit.jupiter.api.Test;

import java.io.FileOutputStream;

import java.io.IOException;

import java.util.UUID;

/**

 * @author asus

 */

public class FastdfsUpload {

    /***

     * 图片文件上传

     */

    @Test

    public void upload() {

        try {

            // 初始化全局配置。加载一个配置文件。

            //ClientGlobal.init("fdfs_client.conf");

            ClientGlobal.initByProperties("fastdfs.properties");

            // 创建一个TrackerClient对象。

            TrackerClient trackerClient = new TrackerClient();

            // 创建一个TrackerServer对象。

            TrackerServer trackerServer = trackerClient.getConnection();

            // 声明一个StorageServer对象，null。

            StorageServer storageServer = null;

            // 获得StorageClient对象。

            StorageClient storageClient = new StorageClient(trackerServer, storageServer);

            // 直接调用StorageClient对象方法上传文件即可。

            String[] strings;

            strings = storageClient.upload_file("imgs/002.jpg", "jpg", null);

            for (String string : strings) {

                System.out.println(string);

            }

        } catch (IOException e) {

            e.printStackTrace();

        } catch (MyException e) {

            e.printStackTrace();

        }

    }

    /***

     * 图片文件下载

     */

    @Test

    public void download() {

        try {

            // 初始化全局配置。加载一个配置文件

            ClientGlobal.init("fdfs_client.conf");

            // 创建一个TrackerClient对象

            TrackerClient tracker = new TrackerClient();

            // 创建一个TrackerServer对象。

            TrackerServer trackerServer = tracker.getConnection();

            // 声明一个StorageServer对象，

            StorageServer storageServer = null;

            // 获得StorageClient对象

            StorageClient storageClient = new StorageClient(trackerServer, storageServer);

            byte[] b = storageClient.download_file("group1", "M00/00/00/wKgfylwIyoOATXT_AAA08M-EhgM3350.jpg");

            System.out.println(b);

            if (b != null) {

                // 将下载的文件流保存

                IOUtils.write(b, new FileOutputStream("DownLoadFile/" + UUID.randomUUID().toString() + ".jpg"));

            }

        } catch (Exception e) {

            e.printStackTrace();

        }

    }

}

在开始测试时遇到一个异常：（没有报错直接跳过）

connect to server 192.168.206.139:22122 fail

java.net.SocketTimeoutException: connect timed out

    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)

    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:85)

    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)

    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)

    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)

    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)

    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)

    at java.net.Socket.connect(Socket.java:579)

    at org.csource.fastdfs.TrackerGroup.getConnection(TrackerGroup.java:47)

    at org.csource.fastdfs.TrackerGroup.getConnection(TrackerGroup.java:72)

    at org.csource.fastdfs.TrackerClient.getConnection(TrackerClient.java:58)

    at FastDFS.upload(FastDFS.java:26)

    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)

    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

    at java.lang.reflect.Method.invoke(Method.java:606)

    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)

    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)

    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)

    at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)

    at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)

    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)

    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)

    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)

    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)

    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)

    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)

    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)

    at org.junit.runners.ParentRunner.run(ParentRunner.java:309)

    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)

    at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)

    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)

    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)

    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)

    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)

connect to server 192.168.206.139:22122 fail

java.net.SocketTimeoutException: connect timed out

    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)

    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:85)

    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)

    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)

    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)

    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)

    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)

    at java.net.Socket.connect(Socket.java:579)

    at org.csource.fastdfs.TrackerGroup.getConnection(TrackerGroup.java:47)

    at org.csource.fastdfs.TrackerGroup.getConnection(TrackerGroup.java:72)

    at org.csource.fastdfs.TrackerClient.getConnection(TrackerClient.java:58)

    at org.csource.fastdfs.TrackerClient.getStoreStorage(TrackerClient.java:91)

    at org.csource.fastdfs.StorageClient.newWritableStorageConnection(StorageClient.java:1938)

    at org.csource.fastdfs.StorageClient.do_upload_file(StorageClient.java:703)

    at org.csource.fastdfs.StorageClient.upload_file(StorageClient.java:164)

    at org.csource.fastdfs.StorageClient.upload_file(StorageClient.java:132)

    at org.csource.fastdfs.StorageClient.upload_file(StorageClient.java:114)

    at FastDFS.upload(FastDFS.java:33)

    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)

    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

    at java.lang.reflect.Method.invoke(Method.java:606)

    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)

    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)

    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)

    at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)

    at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)

    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)

    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)

    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)

    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)

    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)

    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)

    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)

    at org.junit.runners.ParentRunner.run(ParentRunner.java:309)

    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)

    at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)

    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)

    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)

    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)

    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)

org.csource.common.MyException: getStoreStorage fail, errno code: 0

    at org.csource.fastdfs.StorageClient.newWritableStorageConnection(StorageClient.java:1941)

    at org.csource.fastdfs.StorageClient.do_upload_file(StorageClient.java:703)

    at org.csource.fastdfs.StorageClient.upload_file(StorageClient.java:164)

    at org.csource.fastdfs.StorageClient.upload_file(StorageClient.java:132)

    at org.csource.fastdfs.StorageClient.upload_file(StorageClient.java:114)

    at FastDFS.upload(FastDFS.java:33)

    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)

    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

    at java.lang.reflect.Method.invoke(Method.java:606)

    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)

    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)

    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)

    at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)

    at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)

    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)

    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)

    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)

    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)

    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)

    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)

    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)

    at org.junit.runners.ParentRunner.run(ParentRunner.java:309)

    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)

    at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)

    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)

    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)

    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)

    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)

连接超时问题，这是由于linux没有开放22122端口和23000端口所致，我们可以关闭linux的防火墙iptables，但是不推荐这样做，会有安全问题，建议将这两个端口添加到防火墙开放端口中：

#关闭防火墙命令

service iptables stop

#将22111和23000端口添加到防火墙中

/sbin/iptables -I INPUT -p tcp --dport 22122 -j ACCEPT

/sbin/iptables -I INPUT -p tcp --dport 23000 -j ACCEPT

#保存iptables

/etc/rc.d/init.d/iptables save

#重启iptables

service iptables restart

配置完iptables，再测试上传就会成功，打印出上传信息：

可以将打印的上传信息在浏览器中查看是否上传成功：

下载去指定文件夹中查看是否存在：

码农公寓

FastDFS 上传 java 源码：点我下载源码

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