上传图片到阿里云OSS和获取上传图片的外网url的步骤
2021-05-14 16:29
标签：https auto sys ext import resign esc soft class 2.controller: 3.service 此处要把 4.上传的阿里云的帮助类OSSClientUtil 6.需要引入的jar包：gradle配置为： 上传图片到阿里云OSS和获取上传图片的外网url的步骤 标签：https auto sys ext import resign esc soft class 原文地址：https://www.cnblogs.com/xiangzideheiniu/p/11984063.html
"file" name="file"> "submit" value="提交">
@RequestMapping(value = "/headImgUpload.json", method = RequestMethod.POST)
@ResponseBody
public Map
Mapnew HashMap
value.put("success", true);
value.put("errorCode", 0);
value.put("errorMsg", "");
try {
String head = userService.updateHead(file, 4);//此处是调用上传服务接口，4是需要更新的userId 测试数据。
value.put("data", head);
} catch (IOException e) {
e.printStackTrace();
value.put("success", false);
value.put("errorCode", 200);
value.put("errorMsg", "图片上传失败");
}
return value;
}
@Autowired
private OSSClientUtil ossClient;注进来
@Override public String updateHead(MultipartFile file, long userId) throws IOException{
if (file == null || file.getSize()
0) { throw new ImgException("头像不能为空");
}
String name = ossClient.uploadImg2Oss(file);
String imgUrl = ossClient.getImgUrl(name);
userDao.updateHead(userId, imgUrl);//只是本地上传使用的
return imgUrl;
}
import java.io.*;
import java.net.URL;
import java.util.Date;
import java.util.Random;
import com.fndsoft.bcis.exception.ImgException;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import com.aliyun.oss.OSSClient;
import com.aliyun.oss.model.ObjectMetadata;
import com.aliyun.oss.model.PutObjectResult;
import org.springframework.util.StringUtils;
import org.springframework.web.multipart.MultipartFile;
/** * 阿里云 OSS文件类
*
* @author YuanDuDu
*/
public class OSSClientUtil {
Log log = LogFactory.getLog(OSSClientUtil.class);
// endpoint以杭州为例，其它region请按实际情况填写
private String endpoint = "您的endpoint";
// accessKey
private String accessKeyId = "您的accessKeyId";
private String accessKeySecret = "您的accessKeySecret";
//空间
private String bucketName = "bcis";
//文件存储目录
private String filedir = "data/";
private OSSClient ossClient;
public OSSClientUtil() {
ossClient = new OSSClient(endpoint, accessKeyId, accessKeySecret);
}
/**
* 初始化
*/
public void init() {
ossClient = new OSSClient(endpoint, accessKeyId, accessKeySecret);
}
/**
* 销毁
*/
public void destory() {
ossClient.shutdown();
}
/**
* 上传图片
*
* @param url
*/
public void uploadImg2Oss(String url) {
File fileOnServer = new File(url);
FileInputStream fin;
try {
fin = new FileInputStream(fileOnServer);
String[] split = url.split("/");
this.uploadFile2OSS(fin, split[split.length - 1]);
} catch (FileNotFoundException e) {
throw new ImgException("图片上传失败");
}
}
public String uploadImg2Oss(MultipartFile file) {
if (file.getSize() > 1024 * 1024) {
throw new ImgException("上传图片大小不能超过1M！");
}
String originalFilename = file.getOriginalFilename();
String substring = originalFilename.substring(originalFilename.lastIndexOf(".")).toLowerCase();
Random random = new Random();
String name = random.nextInt(10000) + System.currentTimeMillis() + substring;
try {
InputStream inputStream = file.getInputStream();
this.uploadFile2OSS(inputStream, name);
return name;
} catch (Exception e) {
throw new ImgException("图片上传失败");
}
}
/**
* 获得图片路径
*
* @param fileUrl
* @return
*/
public String getImgUrl(String fileUrl) {
if (!StringUtils.isEmpty(fileUrl)) {
String[] split = fileUrl.split("/");
return this.getUrl(this.filedir + split[split.length - 1]);
}
return null;
}
/**
* 上传到OSS服务器 如果同名文件会覆盖服务器上的
*
* @param instream 文件流
* @param fileName 文件名称 包括后缀名
* @return 出错返回"" ,唯一MD5数字签名
*/
public String uploadFile2OSS(InputStream instream, String fileName) {
String ret = "";
try {
//创建上传Object的Metadata
ObjectMetadata objectMetadata = new ObjectMetadata();
objectMetadata.setContentLength(instream.available());
objectMetadata.setCacheControl("no-cache");
objectMetadata.setHeader("Pragma", "no-cache");
objectMetadata.setContentType(getcontentType(fileName.substring(fileName.lastIndexOf("."))));
objectMetadata.setContentDisposition("inline;filename=" + fileName);
//上传文件
PutObjectResult putResult = ossClient.putObject(bucketName, filedir + fileName, instream, objectMetadata);
ret = putResult.getETag();
} catch (IOException e) {
log.error(e.getMessage(), e);
} finally {
try {
if (instream != null) {
instream.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
return ret;
}
/**
* Description: 判断OSS服务文件上传时文件的contentType
*
* @param FilenameExtension 文件后缀
* @return String
*/
public static String getcontentType(String FilenameExtension) {
if (FilenameExtension.equalsIgnoreCase(".bmp")) {
return "image/bmp";
}
if (FilenameExtension.equalsIgnoreCase(".gif")) {
return "image/gif";
}
if (FilenameExtension.equalsIgnoreCase(".jpeg") ||
FilenameExtension.equalsIgnoreCase(".jpg") ||
FilenameExtension.equalsIgnoreCase(".png")) {
return "image/jpeg";
}
if (FilenameExtension.equalsIgnoreCase(".html")) {
return "text/html";
}
if (FilenameExtension.equalsIgnoreCase(".txt")) {
return "text/plain";
}
if (FilenameExtension.equalsIgnoreCase(".vsd")) {
return "application/vnd.visio";
}
if (FilenameExtension.equalsIgnoreCase(".pptx") ||
FilenameExtension.equalsIgnoreCase(".ppt")) {
return "application/vnd.ms-powerpoint";
}
if (FilenameExtension.equalsIgnoreCase(".docx") ||
FilenameExtension.equalsIgnoreCase(".doc")) {
return "application/msword";
}
if (FilenameExtension.equalsIgnoreCase(".xml")) {
return "text/xml";
}
return "image/jpeg";
}
/**
* 获得url链接
*
* @param key
* @return
*/
public String getUrl(String key) {
// 设置URL过期时间为10年 3600l* 1000*24*365*10
Date expiration = new Date(new Date().getTime() + 3600l * 1000 * 24 * 365 * 10);
// 生成URL
URL url = ossClient.generatePresignedUrl(bucketName, key, expiration);
if (url != null) {
return url.toString();
}
return null;
}
}compile ‘com.aliyun.oss:aliyun-sdk-oss:2.2.3‘
文章标题：上传图片到阿里云OSS和获取上传图片的外网url的步骤
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