Spring|Spring boot 上传文件到腾讯云对象储存COS（完整步骤流程） Springboot上传文件到腾讯云对象

1.登录到腾讯云平台（https://cloud.tencent.com）

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image 2.选择【云产品，对象存储】

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image 3.新建

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image 4.查看刚刚创建存

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image 5.选择

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image 6.创建Spring boot项目

com.qcloudcos_api5.2.4

7.把刚刚我们创建的腾讯云存储桶的信息添加进Spring boot项目的配置文件中
image 8.编写上传的控制器

package com.pingao.guns.modular.demo.controller; import com.qcloud.cos.COSClient; import com.qcloud.cos.ClientConfig; import com.qcloud.cos.auth.BasicCOSCredentials; import com.qcloud.cos.auth.COSCredentials; import com.qcloud.cos.model.PutObjectRequest; import com.qcloud.cos.model.PutObjectResult; import com.qcloud.cos.region.Region; import org.springframework.beans.factory.annotation.Value; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.RequestParam; import org.springframework.web.bind.annotation.ResponseBody; import org.springframework.web.multipart.MultipartFile; import javax.servlet.http.HttpSession; import java.io.File; import java.io.IOException; import java.util.Calendar; import java.util.UUID; /*** 文件上传控制器*/@Controlle@RequestMapping(value = "https://www.it610.com/upload")public class UploadController {@Value("${spring.tengxun.accessKey}")private String accessKey; @Value("${spring.tengxun.secretKey}")private String secretKey; @Value("${spring.tengxun.bucket}")private String bucket; @Value("${spring.tengxun.bucketName}")private String bucketName; @Value("${spring.tengxun.path}")private String path; @Value("${spring.tengxun.qianzui}")private String qianzui; /*** 上传道腾讯云服务器（https://cloud.tencent.com/document/product/436/10199）* @return*/@RequestMapping(value = "https://www.it610.com/tengxun",method = RequestMethod.POST)@ResponseBodypublic Object Upload(@RequestParam(value = "https://www.it610.com/article/file") MultipartFile file, HttpSession session){if(file == null){return new UploadMsg(0,"文件为空",null); }String oldFileName = file.getOriginalFilename(); String eName = oldFileName.substring(oldFileName.lastIndexOf(".")); String newFileName = UUID.randomUUID()+eName; Calendar cal = Calendar.getInstance(); int year = cal.get(Calendar.YEAR); int month=cal.get(Calendar.MONTH); int day=cal.get(Calendar.DATE); // 1 初始化用户身份信息(secretId, secretKey)COSCredentials cred = new BasicCOSCredentials(accessKey, secretKey); // 2 设置bucket的区域, COS地域的简称请参照 https://cloud.tencent.com/document/product/436/6224ClientConfig clientConfig = new ClientConfig(new Region(bucket)); // 3 生成cos客户端COSClient cosclient = new COSClient(cred, clientConfig); // bucket的命名规则为{name}-{appid} ，此处填写的存储桶名称必须为此格式String bucketName = this.bucketName; // 简单文件上传, 最大支持 5 GB, 适用于小文件上传, 建议 20 M 以下的文件使用该接口// 大文件上传请参照 API 文档高级 API 上传File localFile = null; try {localFile = File.createTempFile("temp",null); file.transferTo(localFile); // 指定要上传到 COS 上的路径String key = "/"+this.qianzui+"/"+year+"/"+month+"/"+day+"/"+newFileName; PutObjectRequest putObjectRequest = new PutObjectRequest(bucketName, key, localFile); PutObjectResult putObjectResult = cosclient.putObject(putObjectRequest); return new UploadMsg(1,"上传成功",this.path + putObjectRequest.getKey()); } catch (IOException e) {return new UploadMsg(-1,e.getMessage(),null); }finally {// 关闭客户端(关闭后台线程)cosclient.shutdown(); }}private class UploadMsg{public int status; public String msg; public String path; public UploadMsg() {super(); }public UploadMsg（ int status，String msg，String path）{this.status = status; this.msg = msg; this.path = path; }}

【Spring|Spring boot 上传文件到腾讯云对象储存COS（完整步骤流程）】————————————————