SpringBoot集成阿里云OSS图片上传

SpringBoot集成阿里云OSS图片上传

简述

最近做的公司项目，图片比较多，不想给其存储到自己服务器上，就买了阿里云的OSS服务器来哦进行存储，其实集成第三方平台，一般没什么难度，当然，你要仔细看对方的API文档，这篇主要说一下个人集成OSS的过程

步骤

1、pom.xml中添加OSS的SDK

com.aliyun.oss

aliyun-sdk-oss

2.8.3

2、必备参数

在application.yml中配置参数

bucketName: "空间名称"

accessKeyId: "你的accessKeyId"

accessKeySecret: "你的accessKeySecret"

#OSS对应的区域

endpoint: http://oss-cn-beijing.aliyuncs.com

这四个参数在你的阿里云控制台中都能找到

①bucketName

②③accessKeyId和accessKeySecret

配置文件格式如图：

3、创建OSS工具类

/**

* OssUtil.java

* com.prereadweb.utils

* Copyright (c) 2019, 北京链天下科技有限公司版权所有.

*/

package com.prereadweb.utils;

import com.aliyun.oss.OSSClient;

import com.aliyun.oss.model.ObjectMetadata;

import com.aliyun.oss.model.PutObjectResult;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

import org.springframework.beans.factory.annotation.Value;

import org.springframework.stereotype.Component;

import org.springframework.util.StringUtils;

import org.springframework.web.multipart.MultipartFile;

import java.io.IOException;

import java.io.InputStream;

import java.net.URL;

import java.util.Date;

import java.util.List;

import java.util.Random;

/**

* @Description: 阿里云OSS服务器工具类

* @author: Yangxf

* @date: 2019/4/18 16:26

*/

@Component

public class OssUtil {

protected static final Logger log = LoggerFactory.getLogger(OssUtil.class);

@Value("${aliyun.endpoint}")

private String endpoint;

@Value("${aliyun.accessKeyId}")

private String accessKeyId;

@Value("${aliyun.accessKeySecret}")

private String accessKeySecret;

@Value("${aliyun.bucketName}")

private String bucketName;

//文件存储目录

private String filedir = "userImg/";

/**

*

* 上传图片

* @param file

* @return

*/

public String uploadImg2Oss(MultipartFile file) {

if (file.getSize() > 1024 * 1024 *20) {

return "图片太大";//RestResultGenerator.createErrorResult(ResponseEnum.PHOTO_TOO_MAX);

}

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;//RestResultGenerator.createSuccessResult(name);

} catch (Exception e) {

return "上传失败";//RestResultGenerator.createErrorResult(ResponseEnum.PHOTO_UPLOAD);

}

}

/**

* 上传图片获取fileUrl

* @param instream

* @param fileName

* @return

*/

private 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

OSSClient ossClient = new OSSClient(endpoint, accessKeyId, accessKeySecret);

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;

}

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";

}

/**

* 获取图片路径

* @param fileUrl

* @return

*/

public String getImgUrl(String fileUrl) {

if (!StringUtils.isEmpty(fileUrl)) {

String[] split = fileUrl.split("/");

String url = this.getUrl(this.filedir + split[split.length - 1]);

return url;

}

return null;

}

/**

* 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

OSSClient ossClient = new OSSClient(endpoint, accessKeyId, accessKeySecret);

URL url = ossClient.generatePresignedUrl(bucketName, key, expiration);

if (url != null) {

return url.toString();

}

return null;

}

/**

* 多图片上传

* @param fileList

* @return

*/

public String checkList(List fileList) {

String fileUrl = "";

String str = "";

String photoUrl = "";

for(int i = 0;i< fileList.size();i++){

fileUrl = uploadImg2Oss(fileList.get(i));

str = getImgUrl(fileUrl);

if(i == 0){

photoUrl = str;

}else {

photoUrl += "," + str;

}

}

return photoUrl.trim();

}

/**

* 单个图片上传

* @param file

* @return

*/

public String checkImage(MultipartFile file){

String fileUrl = uploadImg2Oss(file);

String str = getImgUrl(fileUrl);

return str.trim();

}

}

4、controller层代码

/**

* @Function: 用户图片上传

* @author: Yangxf

* @Date: 2019/4/17 15:42

*/

@PostMapping("/postfile")

public Object fileUpload(@RequestParam(value = "userImg", required = false) MultipartFile file, @RequestParam(value = "userId", required = false) Long userId) {

return personalService.fileUpload(file, userId);

}

5、service层代码

/**

* @Function: 用户头像上传

* @author: YangXueFeng

* @Date: 2019/4/18 16:15

* @param:

* @return:

*/

@Override

public Map fileUpload(MultipartFile file, Long userId) {

Map map = new HashMap<>();

if (Util.isEmpty(file)) {

System.out.println("文件为空空");

return checkNull(map);

}

UserEntity user = userMapper.fetchUser(userId);

if(Util.isEmpty(user)){

map.put("code", UserStatusEnum.USER_NOT_EXISTENCE.intKey());

map.put("msg", UserStatusEnum.USER_NOT_EXISTEhttp://NCE.value());

return map;

}

String url = ossUtil.checkImage(file);

String[] imgUrls = url.split("\\?");

updateUrl(userId, imgUrls[0]);

Map returnMap = new HashMap<>();

returnMap.put("imageUrl", imgUrls[0]);

map.put("data", returnMap);

returnSuccess(map);

return map;

}

总结

对于第三对接来说，一般对方的API文档都会详细说明使用步骤的，所以，只要仔细看对方提供的API文档了，都没什么难的。

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