图片头像上传（阿里云OSS）

一、注册阿里云账号：阿里云登录 - 欢迎登录阿里云，安全稳定的云计算服务平台

注册完成后找到对象存储OSS 功能

创建bucket

略............

二、后端

依赖:

java 复制代码

        <!--阿里云oss依赖坐标-->
        <dependency>
            <groupId>com.aliyun.oss</groupId>
            <artifactId>aliyun-sdk-oss</artifactId>
            <version>3.15.1</version>
        </dependency>

工具类：

java 复制代码

package com.itfly.utils;



import com.aliyun.oss.ClientException;
import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.OSSException;
import com.aliyun.oss.model.PutObjectRequest;
import com.aliyun.oss.model.PutObjectResult;

import java.io.InputStream;

public class AliOssUtil {

    // Endpoint以华东1（杭州）为例，其它Region请按实际情况填写。
    private static final String ENDPOINT = "改成自己的";
    // 从环境变量中获取访问凭证。运行本代码示例之前，请确保已设置环境变量OSS_ACCESS_KEY_ID和OSS_ACCESS_KEY_SECRET。
    //EnvironmentVariableCredentialsProvider credentialsProvider = CredentialsProviderFactory.newEnvironmentVariableCredentialsProvider();
    private static final String ACCESS_KEY_ID="改";
    private static final String ACCESS_KEY_SECRET="改";
    // 填写Bucket名称，例如examplebucket。
    private static final String BUCKET_NAME = "你的bucket";

    public static String uploadFile(String objectName, InputStream in) throws Exception {


        // 创建OSSClient实例。
        OSS ossClient = new OSSClientBuilder().build(ENDPOINT,ACCESS_KEY_ID, ACCESS_KEY_SECRET);
        String url = "";
        try {
            // 填写字符串。
            String content = "Hello OSS，你好世界";

            // 创建PutObjectRequest对象。
            PutObjectRequest putObjectRequest = new PutObjectRequest(BUCKET_NAME, objectName, in);

            // 如果需要上传时设置存储类型和访问权限，请参考以下示例代码。
            // ObjectMetadata metadata = new ObjectMetadata();
            // metadata.setHeader(OSSHeaders.OSS_STORAGE_CLASS, StorageClass.Standard.toString());
            // metadata.setObjectAcl(CannedAccessControlList.Private);
            // putObjectRequest.setMetadata(metadata);

            // 上传字符串。
            PutObjectResult result = ossClient.putObject(putObjectRequest);
            //url组成: https://bucket名称.区域节点/objectName
            url = "https://"+BUCKET_NAME+"."+ENDPOINT.substring(ENDPOINT.lastIndexOf("/")+1)+"/"+objectName;
        } catch (OSSException oe) {
            System.out.println("Caught an OSSException, which means your request made it to OSS, "
                    + "but was rejected with an error response for some reason.");
            System.out.println("Error Message:" + oe.getErrorMessage());
            System.out.println("Error Code:" + oe.getErrorCode());
            System.out.println("Request ID:" + oe.getRequestId());
            System.out.println("Host ID:" + oe.getHostId());
        } catch (ClientException ce) {
            System.out.println("Caught an ClientException, which means the client encountered "
                    + "a serious internal problem while trying to communicate with OSS, "
                    + "such as not being able to access the network.");
            System.out.println("Error Message:" + ce.getMessage());
        } finally {
            if (ossClient != null) {
                ossClient.shutdown();
            }
        }

        return url;
    }
}

java 复制代码

package com.itfly.controller;


import com.itfly.conf.result.R;
import com.itfly.utils.AliOssUtil;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;

import java.util.UUID;

@RestController
public class FileUploadController {

    @PostMapping("/upload")
    public R<?> upload(MultipartFile file) throws Exception {
        String originalFilename = file.getOriginalFilename();
        //保证文件的名字是唯一的,从而防止文件覆盖
        String filename = UUID.randomUUID().toString()+originalFilename.substring(originalFilename.lastIndexOf("."));
        //file.transferTo(new File("C:\\Users\\Administrator\\Desktop\\files\\"+filename));
        String url = AliOssUtil.uploadFile(filename,file.getInputStream());
        return R.Success(url);
    }
}

测试：

点击发送后：

返回的url就是存储在阿里云的地址，直接访问就可以下载

在自己的工作台就可以看到：

三、前端获取

直接把url挂上去就行了

java 复制代码

<template>
        <img src="https://big-event-ityyf.oss-cn-beijing.aliyuncs.com/0afb0fc4-a81e-4544-b5fd-bac5c062ba22.png" alt="">
</template>
    
<script setup>
    
</script>
    
<style>
    
</style>