在java上使用亚马逊云储存方法

package com.app.framework.config;
import com.amazonaws.ClientConfiguration;
import com.amazonaws.Protocol;
import com.amazonaws.auth.AWSCredentials;
import com.amazonaws.auth.AWSStaticCredentialsProvider;
import com.amazonaws.auth.BasicAWSCredentials;
import com.amazonaws.client.builder.AwsClientBuilder;
import com.amazonaws.services.s3.AmazonS3;
import com.amazonaws.services.s3.AmazonS3ClientBuilder;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
@Configuration
public class AmazonS3Config {
    @Bean
    public AmazonS3 amazonS3Client() {
        //用户名
        String accessKey = "";
        //密码
        String secretKey = "";
        AWSCredentials credentials = new BasicAWSCredentials(accessKey, secretKey);
        AWSStaticCredentialsProvider awsStaticCredentialsProvider = new AWSStaticCredentialsProvider(credentials);
        ClientConfiguration config = new ClientConfiguration();
        String region = "wx-pbc";
        AwsClientBuilder.EndpointConfiguration endpointConfiguration = new AwsClientBuilder.EndpointConfiguration("cos.wx-pbc.cos.tg.unicom.local", region);
        return AmazonS3ClientBuilder.standard()
        .withCredentials(awsStaticCredentialsProvider)
        .withClientConfiguration(config.withProtocol(Protocol.HTTP).withSignerOverride("S3SignerType"))
        .withEndpointConfiguration(endpointConfiguration).build();
    }
}

package com.app.project.welfare.controller;
import cn.hutool.core.lang.UUID;
import com.aliyun.oss.*;
import com.aliyun.oss.model.PutObjectResult;
import com.amazonaws.auth.AWSStaticCredentialsProvider;
import com.amazonaws.auth.BasicAWSCredentials;
import com.amazonaws.services.s3.AmazonS3;
import com.amazonaws.services.s3.AmazonS3ClientBuilder;
import com.amazonaws.services.s3.model.ObjectMetadata;
import com.amazonaws.services.s3.model.PutObjectRequest;
import com.app.framework.web.domain.AjaxResult;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Value;
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.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
@RequestMapping("/oss")
@RestController
@Slf4j
public class OssController {
    /**
     * 把文件上传到自己的服务器，然后在上传到 Amazon s3存储器
     */
    @PostMapping("/upload-img-s3")
    public AjaxResult uploadImgAmazonS3(@RequestParam("file") MultipartFile file) throws IOException {
        log.info("文件上传：{}", file);
        //生成一个随机的UUID（通用唯一标识符）
        UUID uuid = UUID.fastUUID();
        //获取上传文件的原始文件名，并将其存储在变量fileName中
        String fileName = file.getOriginalFilename();
        //使用断言确保fileName不为空，如果为空则抛出异常
        assert fileName != null;
        //将文件名按照点号（"."）分割成一个字符串数组
        String[] fileNameSplit = fileName.split("\\.");
        //将UUID和原始文件名中的扩展名重新拼接起来，形成新的文件名
        fileName = uuid + "." + fileNameSplit[1];
        //创建一个新的ObjectMetadata对象
        ObjectMetadata objectMetadata = new ObjectMetadata();
        //获取上传文件的输入流，并使用available()方法来获取该流中可用的字节数
        objectMetadata.setContentLength(file.getInputStream().available());
        //获取上传文件的内容类型（MIME类型）
        String contentType = file.getContentType();
        //将获取到的文件内容类型设置为新文件的元数据内容类型
        objectMetadata.setContentType(contentType);
        // 设置公共读
        objectMetadata.setHeader("x-amz-acl", "public-read");
        //拼接
        String finalFileName = "name/" + fileName;
        //将文件上传到名为"name"的S3存储桶中
        amazonS3.putObject("name", finalFileName, file.getInputStream(), objectMetadata);
        String imgUrl = "https://xxx" + finalFileName;
        return AjaxResult.success(imgUrl);
    }
}