FastDFS实现文件上传下载实战
2017-07-11 07:39
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正好,淘淘商城讲这一块的时候,我又想起来当时老徐让我写过一个关于实现FastDFS实现文件上传下载的使用文档,当时结合我们的ITOO的视频系统和毕业论文系统,整理了一下,有根据网上查到的知识,总结了一点东西,下面分享一下
一、FastDFS简介:
参见博客:http://blog.csdn.net/liweizhong193516/article/details/53234486
二、FastDFS使用流程介绍:
我们在itoo的dobbu+zk框架中使用fastdfs+nginx+MySQL实现上传附件的功能,主要原理就是将附件上传到fastdfs得到一个文件的链接路径url,我们获取到这个url将他以字符串形式保存到我们的mysql中,下载的时候获取到这个url直接打开或者下载附件。(url内容参见博客:http://blog.csdn.NET/liweizhong193516/article/details/52556526)
默认的,我们就知道fastdfs后面还有一个nginx服务器,当我们进行存储文件的时候,我们要通过fastdfs给我们生成一个保存地址,也就是grounpID 和保存地址,然后将文件存在fastdfs服务器中,fastdfs中有许多的16进制命名文件夹,文件夹中套文件夹;当我们进行读取文件的时候,我们要通过获取mysql里面的相应文件的存储地址去nginx服务器中通过url路径文件名,从fastdfs文件中取出我们的文件进行展示。(所以下载图,有点问题,在这里解释一下)
4000
copy print?<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>com.leech</groupId>
<artifactId>fastdfs-demo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>fastdfs-demo</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.csource</groupId>
<artifactId>fastdfs-client-java</artifactId>
<version>1.25</version>
</dependency>
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>2.4</version>
</dependency>
</dependencies>
</project>
network_timeout = 30
charset = UTF-8
http.tracker_http_port = 80
#没什么用
http.anti_steal_token = no
http.secret_key = FastDFS1234567890
tracker_server = 192.168.17.112:22122
#tracker_server = 192.168.0.119:22122
#没什么用
http.anti_steal_token = no
http.secret_key = FastDFS1234567890
tracker_server = 192.168.17.112:22122
#tracker_server = 192.168.0.119:22122
3、实现文件上传:
[java] view plain copy print? public void save(HttpServletRequest request,HttpServletResponse response){
String videoName=request.getParameter(”videoName”);
String videoType=request.getParameter(”videoType”);
String videoDesc=request.getParameter(”videoDesc”);
String videoPath=request.getParameter(”videoPath”);
String picturePath=request.getParameter(”picturePath”);
SimpleDateFormat formatter = new SimpleDateFormat(“yyyy-MM-dd HH:mm:ss”);
Date uploadTime=null;
try { &
18dec
nbsp;
uploadTime = formatter.parse(formatter.format(new Date()));
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
JacksonJsonUntil jackJsonUtil =new JacksonJsonUntil ();
String dataBaseName = ”itoo_video”;
Video video=new Video();
video.setUserName(”why”);
video.setUserID(”why”);
video.setVideoName(videoName);
video.setVideoPath(videoPath);
video.setVideoType(videoType);
video.setVideoDesc(videoDesc);
video.setDataBaseName(dataBaseName);
video.setPicturePath(picturePath);
video.setUploadTime(uploadTime);
uploadFileService.save(video);
jackJsonUtil.beanToJson(response,video);
}
/*
* 上传文件
*/
@RequestMapping(value={“/upload”})
@ResponseBody
public void upload( MultipartFile file, HttpServletRequest request,HttpServletResponse response){
String ext_Name = file.getOriginalFilename().split(”\\.”)[1];
String videoName=file.getOriginalFilename().split(”\\.”)[0];
byte[] bytes = null;
try {
bytes = file.getBytes();
} catch (IOException e) {
e.printStackTrace();
}
String videoPath=uploadFile(bytes,ext_Name);
JacksonJsonUntil jackJsonUtil =new JacksonJsonUntil ();
Video video=new Video();
video.setVideoPath(videoPath);
video.setVideoName(videoName);
jackJsonUtil.beanToJson(response,video);
}
public String uploadFile(byte[] byteFile, String ext_file) {
// 拼接服务区的文件路径
StringBuffer sbPath = new StringBuffer();
sbPath.append(”http://192.168.22.252”);
try {
// 初始化文件资源
ClientGlobal
.init(”C:\\Users\\alsr\\Desktop\\ITOO-5.0\\itoo-video-Test\\dmsd-itoo-video-parent\\dmsd-itoo-video-web\\src\\main\\resources\\fdfs_client.conf”);
// 链接FastDFS服务器,创建tracker和Stroage
TrackerClient trackerClient = new TrackerClient();
TrackerServer trackerServer = trackerClient.getConnection();
StorageServer storageServer = null;
StorageClient storageClient = new StorageClient(trackerServer,
storageServer);
//利用字节流上传文件
String[] strings = storageClient.upload_file(byteFile, ext_file, null);
for (String string : strings) {
sbPath.append(”/” + string);
System.out.println(string);
}
// 全路径
System.out.println(sbPath);
} catch (IOException | MyException e) {
e.printStackTrace();
}
return sbPath.toString();
}
try {
ClientGlobal.init(conf_filename);
TrackerClient tracker = new TrackerClient();
TrackerServer trackerServer = tracker.getConnection();
StorageServer storageServer = null;
StorageClient storageClient = new StorageClient(trackerServer, storageServer);
byte[] b = storageClient.download_file(“group1”, “M00/00/00/wKgRcFV_08OAK_KCAAAA5fm_sy874.conf”);
System.out.println(b);
IOUtils.write(b, new FileOutputStream(“D:/”+UUID.randomUUID().toString()+“.conf”));
}
catch (Exception e) {
e.printStackTrace();
}
}
try {
ClientGlobal.init(conf_filename);
TrackerClient tracker = new TrackerClient();
TrackerServer trackerServer = tracker.getConnection();
StorageServer storageServer = null;
StorageClient storageClient = new StorageClient(trackerServer, storageServer);
FileInfo fi = storageClient.get_file_info(”group1”, “M00/00/00/wKgRcFV_08OAK_KCAAAA5fm_sy874.conf”);
System.out.println(fi.getSourceIpAddr()); System.out.println(fi.getFileSize());
System.out.println(fi.getCreateTimestamp()); System.out.println(fi.getCrc32());
}
catch (Exception e) {
e.printStackTrace();
}
}
try {
ClientGlobal.init(conf_filename);
TrackerClient tracker = new TrackerClient();
TrackerServer trackerServer = tracker.getConnection();
StorageServer storageServer = null;
StorageClient storageClient = new StorageClient(trackerServer,
storageServer);
NameValuePair nvps [] = storageClient.get_metadata(”group1”, “M00/00/00/wKgRcFV_08OAK_KCAAAA5fm_sy874.conf”);
for(NameValuePair nvp : nvps){
System.out.println(nvp.getName() + ”:” + nvp.getValue());
}
}
catch (Exception e) {
e.printStackTrace();
}
}
try {
ClientGlobal.init(conf_filename);
TrackerClient tracker = new TrackerClient();
TrackerServer trackerServer = tracker.getConnection();
StorageServer storageServer = null;
StorageClient storageClient = new StorageClient(trackerServer,storageServer);
int i = storageClient.delete_file(“group1”, “M00/00/00/wKgRcFV_08OAK_KCAAAA5fm_sy874.conf”);
System.out.println( i==0 ? “删除成功” : “删除失败:”+i);
}
catch (Exception e) {
e.printStackTrace();
}
}
一、FastDFS简介:
参见博客:http://blog.csdn.net/liweizhong193516/article/details/53234486
二、FastDFS使用流程介绍:
我们在itoo的dobbu+zk框架中使用fastdfs+nginx+MySQL实现上传附件的功能,主要原理就是将附件上传到fastdfs得到一个文件的链接路径url,我们获取到这个url将他以字符串形式保存到我们的mysql中,下载的时候获取到这个url直接打开或者下载附件。(url内容参见博客:http://blog.csdn.NET/liweizhong193516/article/details/52556526)
默认的,我们就知道fastdfs后面还有一个nginx服务器,当我们进行存储文件的时候,我们要通过fastdfs给我们生成一个保存地址,也就是grounpID 和保存地址,然后将文件存在fastdfs服务器中,fastdfs中有许多的16进制命名文件夹,文件夹中套文件夹;当我们进行读取文件的时候,我们要通过获取mysql里面的相应文件的存储地址去nginx服务器中通过url路径文件名,从fastdfs文件中取出我们的文件进行展示。(所以下载图,有点问题,在这里解释一下)
三、实现流程:
1、配置依赖:因为我们使用的maven来管理工程,所以,我们需要去陪pom文件
[html] view plain4000
copy print?<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>com.leech</groupId>
<artifactId>fastdfs-demo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>fastdfs-demo</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.csource</groupId>
<artifactId>fastdfs-client-java</artifactId>
<version>1.25</version>
</dependency>
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>2.4</version>
</dependency>
</dependencies>
</project>
<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>com.leech</groupId> <artifactId>fastdfs-demo</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>jar</packaging> <name>fastdfs-demo</name> <url>http://maven.apache.org</url> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> </properties> <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.11</version> <scope>test</scope> </dependency> <dependency> <groupId>org.csource</groupId> <artifactId>fastdfs-client-java</artifactId> <version>1.25</version> </dependency> <dependency> <groupId>commons-io</groupId> <artifactId>commons-io</artifactId> <version>2.4</version> </dependency> </dependencies> </project>当然,更多时候我们利用maven的继承特性,直接配置在父工程中,然后继承下来就o了。
2、新建fdfs_client.conf文件,在我们的itoo中,我们建立在(src/main/resources底下)
[html] view plain copy print?connect_timeout = 2network_timeout = 30
charset = UTF-8
http.tracker_http_port = 80
#没什么用
http.anti_steal_token = no
http.secret_key = FastDFS1234567890
tracker_server = 192.168.17.112:22122
#tracker_server = 192.168.0.119:22122
connect_timeout = 2 network_timeout = 30 charset = UTF-8 http.tracker_http_port = 80
#没什么用
http.anti_steal_token = no
http.secret_key = FastDFS1234567890
tracker_server = 192.168.17.112:22122
#tracker_server = 192.168.0.119:22122
3、实现文件上传:
[java] view plain copy print? public void save(HttpServletRequest request,HttpServletResponse response){
String videoName=request.getParameter(”videoName”);
String videoType=request.getParameter(”videoType”);
String videoDesc=request.getParameter(”videoDesc”);
String videoPath=request.getParameter(”videoPath”);
String picturePath=request.getParameter(”picturePath”);
SimpleDateFormat formatter = new SimpleDateFormat(“yyyy-MM-dd HH:mm:ss”);
Date uploadTime=null;
try { &
18dec
nbsp;
uploadTime = formatter.parse(formatter.format(new Date()));
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
JacksonJsonUntil jackJsonUtil =new JacksonJsonUntil ();
String dataBaseName = ”itoo_video”;
Video video=new Video();
video.setUserName(”why”);
video.setUserID(”why”);
video.setVideoName(videoName);
video.setVideoPath(videoPath);
video.setVideoType(videoType);
video.setVideoDesc(videoDesc);
video.setDataBaseName(dataBaseName);
video.setPicturePath(picturePath);
video.setUploadTime(uploadTime);
uploadFileService.save(video);
jackJsonUtil.beanToJson(response,video);
}
/*
* 上传文件
*/
@RequestMapping(value={“/upload”})
@ResponseBody
public void upload( MultipartFile file, HttpServletRequest request,HttpServletResponse response){
String ext_Name = file.getOriginalFilename().split(”\\.”)[1];
String videoName=file.getOriginalFilename().split(”\\.”)[0];
byte[] bytes = null;
try {
bytes = file.getBytes();
} catch (IOException e) {
e.printStackTrace();
}
String videoPath=uploadFile(bytes,ext_Name);
JacksonJsonUntil jackJsonUtil =new JacksonJsonUntil ();
Video video=new Video();
video.setVideoPath(videoPath);
video.setVideoName(videoName);
jackJsonUtil.beanToJson(response,video);
}
public String uploadFile(byte[] byteFile, String ext_file) {
// 拼接服务区的文件路径
StringBuffer sbPath = new StringBuffer();
sbPath.append(”http://192.168.22.252”);
try {
// 初始化文件资源
ClientGlobal
.init(”C:\\Users\\alsr\\Desktop\\ITOO-5.0\\itoo-video-Test\\dmsd-itoo-video-parent\\dmsd-itoo-video-web\\src\\main\\resources\\fdfs_client.conf”);
// 链接FastDFS服务器,创建tracker和Stroage
TrackerClient trackerClient = new TrackerClient();
TrackerServer trackerServer = trackerClient.getConnection();
StorageServer storageServer = null;
StorageClient storageClient = new StorageClient(trackerServer,
storageServer);
//利用字节流上传文件
String[] strings = storageClient.upload_file(byteFile, ext_file, null);
for (String string : strings) {
sbPath.append(”/” + string);
System.out.println(string);
}
// 全路径
System.out.println(sbPath);
} catch (IOException | MyException e) {
e.printStackTrace();
}
return sbPath.toString();
}
public void save(HttpServletRequest request,HttpServletResponse response){ String videoName=request.getParameter("videoName"); String videoType=request.getParameter("videoType"); String videoDesc=request.getParameter("videoDesc"); String videoPath=request.getParameter("videoPath"); String picturePath=request.getParameter("picturePath"); SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); Date uploadTime=null; try { uploadTime = formatter.parse(formatter.format(new Date())); } catch (ParseException e) { // TODO Auto-generated catch block e.printStackTrace(); } JacksonJsonUntil jackJsonUtil =new JacksonJsonUntil (); String dataBaseName = "itoo_video"; Video video=new Video(); video.setUserName("why"); video.setUserID("why"); video.setVideoName(videoName); video.setVideoPath(videoPath); video.setVideoType(videoType); video.setVideoDesc(videoDesc); video.setDataBaseName(dataBaseName); video.setPicturePath(picturePath); video.setUploadTime(uploadTime); uploadFileService.save(video); jackJsonUtil.beanToJson(response,video); } /* * 上传文件 */ @RequestMapping(value={"/upload"}) @ResponseBody public void upload( MultipartFile file, HttpServletRequest request,HttpServletResponse response){ String ext_Name = file.getOriginalFilename().split("\\.")[1]; String videoName=file.getOriginalFilename().split("\\.")[0]; byte[] bytes = null; try { bytes = file.getBytes(); } catch (IOException e) { e.printStackTrace(); } String videoPath=uploadFile(bytes,ext_Name); JacksonJsonUntil jackJsonUtil =new JacksonJsonUntil (); Video video=new Video(); video.setVideoPath(videoPath); video.setVideoName(videoName); jackJsonUtil.beanToJson(response,video); } public String uploadFile(byte[] byteFile, String ext_file) { // 拼接服务区的文件路径 StringBuffer sbPath = new StringBuffer(); sbPath.append("http://192.168.22.252"); try { // 初始化文件资源 ClientGlobal .init("C:\\Users\\alsr\\Desktop\\ITOO-5.0\\itoo-video-Test\\dmsd-itoo-video-parent\\dmsd-itoo-video-web\\src\\main\\resources\\fdfs_client.conf"); // 链接FastDFS服务器,创建tracker和Stroage TrackerClient trackerClient = new TrackerClient(); TrackerServer trackerServer = trackerClient.getConnection(); StorageServer storageServer = null; StorageClient storageClient = new StorageClient(trackerServer, storageServer); //利用字节流上传文件 String[] strings = storageClient.upload_file(byteFile, ext_file, null); for (String string : strings) { sbPath.append("/" + string); System.out.println(string); } // 全路径 System.out.println(sbPath); } catch (IOException | MyException e) { e.printStackTrace(); } return sbPath.toString(); }只要我们能正常接收到一个json类型的字符串(url地址),就证明我们已经上传成功了,如果不信,可以直接用浏览器去验证一下,看看能不能得到文件展示。
4、FastDFS实现文件下载:
[java] view plain copy print?public void testDownload() {try {
ClientGlobal.init(conf_filename);
TrackerClient tracker = new TrackerClient();
TrackerServer trackerServer = tracker.getConnection();
StorageServer storageServer = null;
StorageClient storageClient = new StorageClient(trackerServer, storageServer);
byte[] b = storageClient.download_file(“group1”, “M00/00/00/wKgRcFV_08OAK_KCAAAA5fm_sy874.conf”);
System.out.println(b);
IOUtils.write(b, new FileOutputStream(“D:/”+UUID.randomUUID().toString()+“.conf”));
}
catch (Exception e) {
e.printStackTrace();
}
}
public void testDownload() { try { ClientGlobal.init(conf_filename); TrackerClient tracker = new TrackerClient(); TrackerServer trackerServer = tracker.getConnection(); StorageServer storageServer = null; StorageClient storageClient = new StorageClient(trackerServer, storageServer); byte[] b = storageClient.download_file("group1", "M00/00/00/wKgRcFV_08OAK_KCAAAA5fm_sy874.conf"); System.out.println(b); IOUtils.write(b, new FileOutputStream("D:/"+UUID.randomUUID().toString()+".conf")); } catch (Exception e) { e.printStackTrace(); } }
5、FastDFS获取将上传文件信息:
[java] view plain copy print?public void testGetFileInfo(){try {
ClientGlobal.init(conf_filename);
TrackerClient tracker = new TrackerClient();
TrackerServer trackerServer = tracker.getConnection();
StorageServer storageServer = null;
StorageClient storageClient = new StorageClient(trackerServer, storageServer);
FileInfo fi = storageClient.get_file_info(”group1”, “M00/00/00/wKgRcFV_08OAK_KCAAAA5fm_sy874.conf”);
System.out.println(fi.getSourceIpAddr()); System.out.println(fi.getFileSize());
System.out.println(fi.getCreateTimestamp()); System.out.println(fi.getCrc32());
}
catch (Exception e) {
e.printStackTrace();
}
}
public void testGetFileInfo(){ try { ClientGlobal.init(conf_filename); TrackerClient tracker = new TrackerClient(); TrackerServer trackerServer = tracker.getConnection(); StorageServer storageServer = null; StorageClient storageClient = new StorageClient(trackerServer, storageServer); FileInfo fi = storageClient.get_file_info("group1", "M00/00/00/wKgRcFV_08OAK_KCAAAA5fm_sy874.conf"); System.out.println(fi.getSourceIpAddr()); System.out.println(fi.getFileSize()); System.out.println(fi.getCreateTimestamp()); System.out.println(fi.getCrc32()); } catch (Exception e) { e.printStackTrace(); } }
6、FastDFS获取文件名称:
[java] view plain copy print?public void testGetFileMate(){try {
ClientGlobal.init(conf_filename);
TrackerClient tracker = new TrackerClient();
TrackerServer trackerServer = tracker.getConnection();
StorageServer storageServer = null;
StorageClient storageClient = new StorageClient(trackerServer,
storageServer);
NameValuePair nvps [] = storageClient.get_metadata(”group1”, “M00/00/00/wKgRcFV_08OAK_KCAAAA5fm_sy874.conf”);
for(NameValuePair nvp : nvps){
System.out.println(nvp.getName() + ”:” + nvp.getValue());
}
}
catch (Exception e) {
e.printStackTrace();
}
}
public void testGetFileMate(){ try { ClientGlobal.init(conf_filename); TrackerClient tracker = new TrackerClient(); TrackerServer trackerServer = tracker.getConnection(); StorageServer storageServer = null; StorageClient storageClient = new StorageClient(trackerServer, storageServer); NameValuePair nvps [] = storageClient.get_metadata("group1", "M00/00/00/wKgRcFV_08OAK_KCAAAA5fm_sy874.conf"); for(NameValuePair nvp : nvps){ System.out.println(nvp.getName() + ":" + nvp.getValue()); } } catch (Exception e) { e.printStackTrace(); } }
7、FastDFS实现删除文件:
[java] view plain copy print? public void testDelete(){try {
ClientGlobal.init(conf_filename);
TrackerClient tracker = new TrackerClient();
TrackerServer trackerServer = tracker.getConnection();
StorageServer storageServer = null;
StorageClient storageClient = new StorageClient(trackerServer,storageServer);
int i = storageClient.delete_file(“group1”, “M00/00/00/wKgRcFV_08OAK_KCAAAA5fm_sy874.conf”);
System.out.println( i==0 ? “删除成功” : “删除失败:”+i);
}
catch (Exception e) {
e.printStackTrace();
}
}
public void testDelete(){ try { ClientGlobal.init(conf_filename); TrackerClient tracker = new TrackerClient(); TrackerServer trackerServer = tracker.getConnection(); StorageServer storageServer = null; StorageClient storageClient = new StorageClient(trackerServer,storageServer); int i = storageClient.delete_file("group1", "M00/00/00/wKgRcFV_08OAK_KCAAAA5fm_sy874.conf"); System.out.println( i==0 ? "删除成功" : "删除失败:"+i); } catch (Exception e) { e.printStackTrace(); } }
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