springboot+thymeleaf整合阿里云OOS对象存储图片的实现
目录
- 1.先引入pom依赖
- 2.编写前端thymleeaf代码tetsfile.html
- 3.service层编写
- 4.controller层编写
今天再进行创建项目时想使用阿里云oos进行存储图片 下面进行实操
1.先引入pom依赖
<dependency> <groupId>com.aliyun.oss</groupId> <artifactId>aliyun-sdk-oss</artifactId> <version>3.9.1</version> </dependency>
2.编写前端thymleeaf代码tetsfile.html
<!DOCTYPE html> <html lang="en" xmlns:th="http://www.thymeleaf.org"> <head> <meta charset="UTF-8"> <title>Title</title> </head> <style> </style> <body> <img th:src="${url}" alt="" width="300px"> <form action="fileUpload" method="post" enctype="multipart/form-data"> <input type="file" name="fileName"> <input type="submit"> </form> </body> </html>
3.service层编写
下面的代码需要4个参数
package com.xuda.ntf.service; import com.aliyun.oss.*; import com.aliyun.oss.model.*; import lombok.extern.slf4j.Slf4j; import org.springframework.stereotype.Service; import java.io.File; import java.net.URL; import java.text.SimpleDateFormat; import java.util.Date; import java.util.List; import java.util.UUID; /** * @author :程序员徐大大 * @description:TODO * @date :2022-05-07 10:33 */ @Service @Slf4j public class AliyunOSSUtilService { /** * 这五个分别是什么下面会说 * aliyun.oss.endpoint=oss-cn-shanghai.aliyuncs.com * aliyun.oss.accessKeyId=L相关密钥 * aliyun.oss.secret=eF0相关密钥 * aliyun.oss.bucket=yygh-xuda */ public static final String endpoint = "oss-cn-shanghai.aliyuncs.com"; public static final String accessKeyId = "LTA个人密钥"; public static final String accessKeySecret = "eF0UmiWp2回传密钥"; public static final String bucketName = "yygh-xuda回传name"; public static final String fileHost = "2022/cff"; //图片头部 private static SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd"); /** * 上传 * * @param file * @return */ public String upload(File file) { log.info("=========>OSS文件上传开始:" + file.getName()); // String fileHost=constantProperties.getFilehost(); System.out.println(endpoint + "endpoint"); SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd"); String dateStr = format.format(new Date()); if (null == file) { return null; } OSSClient ossClient = new OSSClient(endpoint, accessKeyId, accessKeySecret); try { //容器不存在,就创建 if (!ossClient.doesBucketExist(bucketName)) { ossClient.createBucket(bucketName); CreateBucketRequest createBucketRequest = new CreateBucketRequest(bucketName); createBucketRequest.setCannedACL(CannedAccessControlList.PublicRead); ossClient.createBucket(createBucketRequest); } //创建文件路径 String fileUrl = fileHost + "/" + (dateStr + "/" + UUID.randomUUID().toString().replace("-", "") + "-" + file.getName()); //上传文件 PutObjectResult result = ossClient.putObject(new PutObjectRequest(bucketName, fileUrl, file)); //设置权限 这里是公开读 ossClient.setBucketAcl(bucketName, CannedAccessControlList.PublicRead); if (null != result) { log.info("==========>OSS文件上传成功,OSS地址:" + fileUrl); return fileUrl; } } catch (OSSException oe) { log.error(oe.getMessage()); } catch (ClientException ce) { log.error(ce.getMessage()); } finally { //关闭 ossClient.shutdown(); } return null; } /** * @desc 查看文件列表 */ public List<OSSObjectSummary> getObjectList() { OSS ossClient = new OSSClient(endpoint, accessKeyId, accessKeySecret); // 设置最大个数。 final int maxKeys = 200; // 列举文件。 ListObjectsRequest listObjectsRequest = new ListObjectsRequest(bucketName); listObjectsRequest.setPrefix(fileHost + "/"); ObjectListing objectListing = ossClient.listObjects(listObjectsRequest.withMaxKeys(maxKeys)); List<OSSObjectSummary> sums = objectListing.getObjectSummaries(); return sums; } /** * 获取文件临时url * * @param objectName oss中的文件名 * @param */ public String getUrl(String objectName ,long effectiveTime) { OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret); // 设置URL过期时间 Date expiration = new Date(new Date().getTime() + effectiveTime); GeneratePresignedUrlRequest generatePresignedUrlRequest ; generatePresignedUrlRequest =new GeneratePresignedUrlRequest(bucketName, objectName); generatePresignedUrlRequest.setExpiration(expiration); URL url = ossClient.generatePresignedUrl(generatePresignedUrlRequest); return url.toString(); } /** * 删除OSS中的单个文件 * * @param objectName 唯一objectName(在oss中的文件名字) */ public void delete(String objectName) { try { // 创建OSSClient实例。 OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret); // 删除文件。 ossClient.deleteObject(bucketName, objectName); // 关闭OSSClient。 ossClient.shutdown(); } catch (Exception e) { e.printStackTrace(); } } }
4.controller层编写
写到代码中取
package com.xuda.ntf.controller; import com.aliyun.oss.model.OSSObjectSummary; import com.xuda.ntf.service.AliyunOSSUtilService; import com.xuda.ntf.service.FileService; import com.xuda.ntf.utils.JsonResult; import lombok.extern.slf4j.Slf4j; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; 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; import java.io.File; import java.io.FileOutputStream; import java.util.ArrayList; import java.util.List; import java.util.Map; /** * @author :程序员徐大大 * @description:TODO * @date :2022-05-07 9:39 */ @Slf4j @Controller public class FileApiController { String uploadUrl = ""; @Autowired private AliyunOSSUtilService aliyunOSSUtil; /** * 查看图片 * */ @RequestMapping("/getAllPic") public String getAllPic(Model model){ // Hashtable hashtable = new Hashtable(); // 显示图片 ArrayList<String> listStr = new ArrayList<>(); List<OSSObjectSummary> list = aliyunOSSUtil.getObjectList(); String url = aliyunOSSUtil.getUrl(uploadUrl,5000); /* list.forEach(item -> { // 这个将自己上传图片得地址复制到这里来 listStr.add("https://yygh-xuda.oss-cn-shanghai.aliyuncs.com/"+item.getKey()); } );*/ model.addAttribute("fileNames",listStr); model.addAttribute("url",url); return "testfile.html"; } /** * * @param file 要上传的文件 * @return */ @RequestMapping("/fileUpload") public String upload(@RequestParam("fileName") MultipartFile file,Model model){ try { if(null != file){ String filename = file.getOriginalFilename(); if(!"".equals(filename.trim())){ File newFile = new File(filename); FileOutputStream os = new FileOutputStream(newFile); os.write(file.getBytes()); os.close(); file.transferTo(newFile); //上传到OSS uploadUrl = aliyunOSSUtil.upload(newFile); System.out.println(uploadUrl); model.addAttribute("file",uploadUrl); } } }catch (Exception ex){ ex.printStackTrace(); } return "forward:getAllPic"; } }
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