FastDFS文件上传
作者：互联网
文章目录
1.FastDFS安装
docker镜像拉取
docker pull morunchang/fastdfs
运行docker
docker run ‐d ‐‐name tracker ‐‐net=host morunchang/fastdfs sh tracker.sh
运行storage
docker run ‐d ‐‐name storage ‐‐net=host ‐e TRACKER_IP=<your tracker
server address>:22122 ‐e GROUP_NAME=<group name> morunchang/fastdfs sh
storage.sh
使用的网络模式是–net=host, 替换为你机器的Ip即可
是组名，即storage的组
如果想要增加新的storage服务器，再次运行该命令，注意更换 新组名
修改nginx的配置
进入storage的容器内部，修改nginx.conf
docker exec ‐it storage /bin/bash
进入后
vi /data/nginx/conf/nginx.conf
添加以下内容
location /group1/M00 {
proxy_next_upstream http_502 http_504 error timeout invalid_header;
proxy_cache http‐cache;
proxy_cache_valid 200 304 12h;
proxy_cache_key $uri$is_args$args;
proxy_pass http://fdfs_group1;
expires 30d;
}
退出容器
exit
重启
docker restart storage
2.修改pom.xml，引入依赖
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>net.oschina.zcx7878</groupId>
<artifactId>fastdfs-client-java</artifactId>
<version>1.27.0.0</version>
</dependency>
<dependency>
<groupId>com.changgou</groupId>
<artifactId>changgou_common</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
</dependencies>
在resources文件夹下创建fasfDFS的配置文件fdfs_client.conf
connect_timeout = 60
network_timeout = 60
charset = UTF‐8
http.tracker_http_port = 8080
tracker_server = 192.168.200.128:22122
在resources文件夹下创建application.yml
spring:
servlet:
multipart:
max‐file‐size: 10MB
max‐request‐size: 10MB
server:
port: 9008
eureka:
client:
service‐url:
defaultZone: http://127.0.0.1:6868/eureka
instance:
prefer‐ip‐address: true
feign:
hystrix:
enabled: true
3.项目使用
package com.changgou.file.util;
public class FastDFSFile {
//文件名字
private String name;
//文件内容
private byte[] content;
//文件扩展名
private String ext;
//文件MD5摘要值
private String md5;
//文件创建作者
private String author;
public FastDFSFile(String name, byte[] content, String ext, String height,
String width, String author) {
super();
this.name = name;
this.content = content;
this.ext = ext;
this.author = author;
}
public FastDFSFile(String name, byte[] content, String ext) {
super();
this.name = name;
this.content = content;
this.ext = ext;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public byte[] getContent() {
return content;
}
public void setContent(byte[] content) {
this.content = content;
}
public String getExt() {
return ext;
}
public void setExt(String ext) {
this.ext = ext;
}
public String getMd5() {
return md5;
}
public void setMd5(String md5) {
this.md5 = md5;
}
public String getAuthor() {
return author;
}
public void setAuthor(String author) {
this.author = author;
}
}
上传、下载、删除工具类
package com.changgou.file.util;
import org.csource.common.NameValuePair;
import org.csource.fastdfs.*;
import org.slf4j.LoggerFactory;
import org.springframework.core.io.ClassPathResource;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
public class FastDFSClient {
private static org.slf4j.Logger logger = LoggerFactory.getLogger(FastDFSClient.class);
/***
* 初始化加载FastDFS的TrackerServer配置
*/
static {
try {
String filePath = new ClassPathResource("fdfs_client.conf").getFile().getAbsolutePath();
ClientGlobal.init(filePath);
} catch (Exception e) {
logger.error("FastDFS Client Init Fail!",e);
}
}
/***
* 文件上传
* @param file
* @return
*/
public static String[] upload(FastDFSFile file) {
//获取文件的作者
NameValuePair[] meta_list = new NameValuePair[1];
meta_list[0] = new NameValuePair("author", file.getAuthor());
//接收返回数据
String[] uploadResults = null;
StorageClient storageClient=null;
try {
//创建StorageClient客户端对象
storageClient = getTrackerClient();
/***
* 文件上传
* 1)文件字节数组
* 2)文件扩展名
* 3)文件作者
*/
uploadResults = storageClient.upload_file(file.getContent(), file.getExt(), meta_list);
} catch (Exception e) {
logger.error("Exception when uploadind the file:" + file.getName(), e);
}
if (uploadResults == null && storageClient!=null) {
logger.error("upload file fail, error code:" + storageClient.getErrorCode());
}
//获取组名
String groupName = uploadResults[0];
//获取文件存储路径
String remoteFileName = uploadResults[1];
return uploadResults;
}
/***
* 获取文件信息
* @param groupName:组名
* @param remoteFileName：文件存储完整名
* @return
*/
public static FileInfo getFile(String groupName, String remoteFileName) {
try {
StorageClient storageClient = getTrackerClient();
return storageClient.get_file_info(groupName, remoteFileName);
} catch (Exception e) {
logger.error("Exception: Get File from Fast DFS failed", e);
}
return null;
}
/***
* 文件下载
* @param groupName
* @param remoteFileName
* @return
*/
public static InputStream downFile(String groupName, String remoteFileName) {
try {
//创建StorageClient
StorageClient storageClient = getTrackerClient();
//下载文件
byte[] fileByte = storageClient.download_file(groupName, remoteFileName);
InputStream ins = new ByteArrayInputStream(fileByte);
return ins;
} catch (Exception e) {
logger.error("Exception: Get File from Fast DFS failed", e);
}
return null;
}
/***
* 文件删除
* @param groupName
* @param remoteFileName
* @throws Exception
*/
public static void deleteFile(String groupName, String remoteFileName)
throws Exception {
//创建StorageClient
StorageClient storageClient = getTrackerClient();
//删除文件
int i = storageClient.delete_file(groupName, remoteFileName);
}
/***
* 获取Storage组
* @param groupName
* @return
* @throws IOException
*/
public static StorageServer[] getStoreStorages(String groupName)
throws IOException {
//创建TrackerClient
TrackerClient trackerClient = new TrackerClient();
//获取TrackerServer
TrackerServer trackerServer = trackerClient.getConnection();
//获取Storage组
return trackerClient.getStoreStorages(trackerServer, groupName);
}
/***
* 获取Storage信息,IP和端口
* @param groupName
* @param remoteFileName
* @return
* @throws IOException
*/
public static ServerInfo[] getFetchStorages(String groupName,
String remoteFileName) throws IOException {
TrackerClient trackerClient = new TrackerClient();
TrackerServer trackerServer = trackerClient.getConnection();
return trackerClient.getFetchStorages(trackerServer, groupName, remoteFileName);
}
/***
* 获取Tracker服务地址
* @return
* @throws IOException
*/
public static String getTrackerUrl() throws IOException {
return "http://"+getTrackerServer().getInetSocketAddress().getHostString()+":"+ClientGlobal.getG_tracker_http_port()+"/";
}
/***
* 获取Storage客户端
* @return
* @throws IOException
*/
private static StorageClient getTrackerClient() throws IOException {
TrackerServer trackerServer = getTrackerServer();
StorageClient storageClient = new StorageClient(trackerServer, null);
return storageClient;
}
/***
* 获取Tracker
* @return
* @throws IOException
*/
private static TrackerServer getTrackerServer() throws IOException {
TrackerClient trackerClient = new TrackerClient();
TrackerServer trackerServer = trackerClient.getConnection();
return trackerServer;
}
}
上传代码
@PostMapping("/upload")
public Result upload(@RequestParam("file") MultipartFile file) {
try {
//判断文件是否为空
if (file == null) {
throw new RuntimeException("文件不存在");
}
//获取文件名
String originalFilename = file.getOriginalFilename();
if (StringUtils.isEmpty(originalFilename)) { //判断名称是否为空
throw new RuntimeException("文件名为空");
}
//获取扩展名称
String extName = originalFilename.substring(originalFilename.lastIndexOf(".") + 1);
//获取内容
byte[] content = file.getBytes();
//封装内容
FastDFSFile fastDFSFile = new FastDFSFile(originalFilename, content, extName);
//上传文件
String[] uploadResult = FastDFSClient.upload(fastDFSFile);
String url = FastDFSClient.getTrackerUrl() + "/" + uploadResult[0] + "/" + uploadResult[1];
return new Result(true, StatusCode.OK, "文件上传成功", url);
} catch (Exception e) {
e.printStackTrace();
}
return new Result(false, StatusCode.ERROR, "文件上传失败");
}
}
标签：文件,return,String,FastDFS,remoteFileName,groupName,file,上传,public 来源： https://blog.csdn.net/weixin_42430550/article/details/117933296