二、SpringBoot实现上传文件到fastDFS文件服务器

时间:2025-01-18 16:03:26

  上篇文章介绍了如何使用docker安装fastDFS文件服务器,这一篇就介绍整合springBoot实现文件上传到fastDFS文件服务器

  1.pom.xml文件添加依赖

<!-- 连接fastdfs文件系统 -->
<dependency>
<groupId>net.oschina.zcx7878</groupId>
<artifactId>fastdfs-client-java</artifactId>
<version>1.27.0.0</version>
</dependency>

  2.在resource包下创建配置文件fdfs_client.conf  

  tracker_server的值ip为你文件服务器的ip
connect_timeout=30
network_timeout=60
charset = UTF-8
http.tracker_http_port = 8888
http.anti_steal_token = no
http.secret_key =
tracker_server=ip:22122

  3.创建FastDFSConfig.java加载fdfs_client.conf配置文件

import org.csource.fastdfs.ClientGlobal;
import org.csource.fastdfs.TrackerClient;
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 org.springframework.core.io.Resource; /**
* fastDFS文件上传的配置
*/ @Configuration
public class FastDFSConfig {
private final Logger log = LoggerFactory.getLogger(this.getClass()); @Value("classpath:fdfs_client.conf")
private Resource ccs; @Bean
public TrackerClient initClient(){
try{
ClientGlobal.init(ccs.getFilename());
return new TrackerClient();
}catch (Exception e){
log.info("FastDFS创建客户端失败");
return null;
}
} }

  4.创建文件上传的Cotroller,返回的访问路径中ip是你文件服务器的ip

import org.csource.common.NameValuePair;
import org.csource.fastdfs.*;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile; @RestController
@RequestMapping("/file")
public class FileController { private Logger log = LoggerFactory.getLogger(FileController.class);
@Autowired
private TrackerClient trackerClient; @PostMapping("/upload")
public String uploadFile(@RequestParam("file") MultipartFile file) throws Exception{
if(file == null){
throw new RuntimeException("文件不能为空");
}
//1.获取文件的完整名称
String filename = file.getOriginalFilename();
if(StringUtils.isEmpty(filename)){
throw new RuntimeException("文件不存在");
}
//2.获取文件的扩展名称
String extName = filename.substring(filename.lastIndexOf(".") + 1);
log.info("文件的全名:"+filename+" 文件的扩展名:"+extName);
NameValuePair[] metaList = new NameValuePair[1];
metaList[0] = new NameValuePair("fileName", filename);
//3.创建trackerServer
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);
// 6、使用 StorageClient 对象上传图片。
String[] strings = storageClient.upload_file(file.getBytes(), extName, metaList);
return "http://ip:8888/"+strings[0]+"/"+strings[1]; }

  5.此时用postman调用你的文件上传接口,根据返回的路径在浏览器*问,即可成功访问到你上传的文件。