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解决方案
时间：2021-05-19
创建SpringBoot工程：
再导入所需要的依赖：
<dependency> <groupId>net.oschina.zcx7878</groupId> <artifactId>fastdfs-client-java</artifactId> <version>1.27.0.0</version> </dependency> <dependency> <groupId>org.apache.commons</groupId> <artifactId>commons-lang3</artifactId> </dependency>创建上传业务层程序：
package cn.dzz.fastdfs.service;import org.apache.commons.lang3.StringUtils;import org.csource.fastdfs.*;import org.springframework.beans.factory.annotation.Value;import org.springframework.stereotype.Component;import org.springframework.web.multipart.MultipartFile;import java.util.HashMap;import java.util.Map;/** * @author DaiZhiZhou * @file Boot-With-FastDFS * @create 2020-08-13 8:55 */// @PropertySource()@Componentpublic class UploadService { @Value("${fastdfs.tracker_servers}") private String tracker_servers; @Value("${fastdfs.connect_timeout_in_seconds}") private int connect_timeout; @Value("${fastdfs.network_timeout_in_seconds}") private int network_timeout; @Value("${fastdfs.charset}") private String charset; public Map<String,Object> upload(MultipartFile multipartFile) { if (multipartFile == null) { throw new RuntimeException("文件不能为空"); } // 上传至fastDFS, 返回文件id String fileId = this.fdfsUpload(multipartFile); if (StringUtils.isEmpty(fileId)) { System.out.println("上传失败"); throw new RuntimeException("上传失败"); } Map<String, Object> map=new HashMap<>(); map.put("code",200); map.put("msg","上传成功"); map.put("fileId",fileId); return map; } /** * 上传至fastDFS * @param multipartFile * @return 文件id */ private String fdfsUpload(MultipartFile multipartFile) { // 1. 初始化fastDFS的环境 initFdfsConfig(); // 2. 获取trackerClient服务 TrackerClient trackerClient = new TrackerClient(); try { TrackerServer trackerServer = trackerClient.getConnection(); // 3. 获取storage服务 StorageServer storeStorage = trackerClient.getStoreStorage(trackerServer); // 4. 获取storageClient StorageClient1 storageClient1 = new StorageClient1(trackerServer, storeStorage); // 5. 上传文件 (文件字节, 文件扩展名, ) // 5.1 获取文件扩展名 String originalFilename = multipartFile.getOriginalFilename(); String extName = originalFilename.substring(originalFilename.lastIndexOf(".") + 1); // 5.2 上传 String fileId = storageClient1.upload_file1(multipartFile.getBytes(), extName, null); return fileId; } catch (Exception e) { System.out.println(e); return null; } } /** * 初始化fastDFS的环境 */ private void initFdfsConfig() { try { ClientGlobal.initByTrackers(tracker_servers); ClientGlobal.setG_connect_timeout(connect_timeout); ClientGlobal.setG_network_timeout(network_timeout); ClientGlobal.setG_charset(charset); } catch (Exception e) { System.out.println(e); } }}创建上传控制器：
package cn.dzz.fastdfs.controller;import cn.dzz.fastdfs.service.UploadService;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.multipart.MultipartFile;import java.util.Map;/** * @author DaiZhiZhou * @file Boot-With-FastDFS * @create 2020-08-13 8:58 */@RestController@RequestMapping("upload")public class UploadController { @Autowired private UploadService uploadService; /** * 作上传 */ @RequestMapping("doUpload") public Map<String,Object> doUpload(MultipartFile mf){ System.out.println(mf.getOriginalFilename()); Map<String, Object> map = uploadService.upload(mf); return map; }}在static目录中创建index.html用于上传测试：
<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <title>Title</title></head><body><h1>文件上传</h1><hr><form action="/upload/doUpload" method="post" enctype="multipart/form-data"> <input type="file" name="mf"> <input type="submit" value="上传"></form></body></html>运行SpringBoot进行测试：
测试成功：
查看文件位置也可以被访问到：
上传文件实现方式二：
更改依赖：
<!-- https://mvnrepository.com/artifact/com.github.tobato/fastdfs-client --> <dependency> <groupId>com.github.tobato</groupId> <artifactId>fastdfs-client</artifactId> <version>1.26.7</version> </dependency>创建一个配置类UploadProperties
package cn.dzz.fastdfs.config;import lombok.Data;import org.springframework.boot.context.properties.ConfigurationProperties;import org.springframework.stereotype.Component;import java.util.List;/** * @author DaiZhiZhou * @file Boot-With-FastDFS * @create 2020-08-13 9:10 */@Data@Component@ConfigurationProperties(prefix = "upload")public class UploadProperties { private String baseUrl; private List<String> allowTypes;}更改之前的yml配置：
fdfs: so-timeout: 2500 # 读取时间 connect-timeout: 600 # 连接超时时间 thumb-image: # 缩略图 width: 100 height: 100 tracker-list: # tracker服务配置地址列表 - 服务器或者虚拟机IP:22122upload: base-url: http://服务器或者虚拟机IP/ allow-types: - image/jpeg - image/png - image/bmp - image/gif编写UploadProperties.java
package cn.dzz.config;import lombok.Data;import org.springframework.boot.context.properties.ConfigurationProperties;import java.util.List;/** * @author DaiZhiZhou * @file fdfs * @create 2020-08-13 9:33 */@ConfigurationProperties(prefix = "upload")@Datapublic class UploadProperties { private String baseUrl; private List<String> allowTypes;}业务层：
package cn.dzz.service;import cn.dzz.config.UploadProperties;import com.github.tobato.fastdfs.domain.fdfs.StorePath;import com.github.tobato.fastdfs.service.FastFileStorageClient;import org.apache.commons.lang3.StringUtils;import org.apache.commons.logging.Log;import org.apache.commons.logging.LogFactory;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.boot.context.properties.EnableConfigurationProperties;import org.springframework.stereotype.Component;import org.springframework.web.multipart.MultipartFile;import javax.imageio.ImageIO;import java.awt.image.BufferedImage;import java.io.IOException;/** * @author DaiZhiZhou * @file fdfs * @create 2020-08-13 9:34 */@Component@EnableConfigurationProperties(UploadProperties.class)public class UploadService { private Log log= LogFactory.getLog(UploadService.class); @Autowired private FastFileStorageClient storageClient; @Autowired private UploadProperties prop; public String uploadImage(MultipartFile file) { // 1、校验文件类型 String contentType = file.getContentType(); if (!prop.getAllowTypes().contains(contentType)) { throw new RuntimeException("文件类型不支持"); } // 2、校验文件内容 try { BufferedImage image = ImageIO.read(file.getInputStream()); if (image == null || image.getWidth() == 0 || image.getHeight() == 0) { throw new RuntimeException("上传文件有问题"); } } catch (IOException e) { log.error("校验文件内容失败....{}", e); throw new RuntimeException("校验文件内容失败"+e.getMessage()); } try { // 3、上传到FastDFS // 3.1、获取扩展名 String extension = StringUtils.substringAfterLast(file.getOriginalFilename(), "."); // 3.2、上传 StorePath storePath = storageClient.uploadFile(file.getInputStream(), file.getSize(), extension, null); // 返回路径 return prop.getBaseUrl() + storePath.getFullPath(); } catch (IOException e) { log.error("【文件上传】上传文件失败！....{}", e); throw new RuntimeException("【文件上传】上传文件失败！"+e.getMessage()); } }}控制器：
package cn.dzz.controller;import cn.dzz.service.UploadService;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RestController;import org.springframework.web.multipart.MultipartFile;import java.util.HashMap;import java.util.Map;/** * @author DaiZhiZhou * @file fdfs * @create 2020-08-13 9:35 */@RequestMapping("upload")@RestControllerpublic class UploadController { @Autowired private UploadService uploadService; @RequestMapping("doUpload") public Map<String,Object> doUpload(MultipartFile multipartFile) { System.out.println(multipartFile.getOriginalFilename()); Map<String, Object> map = new HashMap<>(); String filePath = uploadService.uploadImage(multipartFile); map.put("filePath", filePath); return map; }}还是一样的上传页面：
<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <title>Title</title></head><body><h1>文件上传</h1><hr><form action="/upload/doUpload" method="post" enctype="multipart/form-data"> <input type="file" name="mf"> <input type="submit" value="上传"></form></body></html>运行发现空指针异常，检查发现表单名称没对上，SpringMVC就无法转换了
<input type="file" name="multipartFile">
再次测试：
访问：
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