生命很快就过去了，一个时机从不会出现两次。必须当机立断，不然就永远别要。——罗曼·罗兰
首先打开官方文档
下载下方的开发包
期间我们可以去注册并配置，注意需要配置实名认证。。。
下面的步骤可以看快速入门
然后根据这篇博客把jar包引入maven项目
最后是代码
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| package com.ruben.utils;
import com.amazonaws.ClientConfiguration;
import com.amazonaws.auth.AWSCredentials;
import com.amazonaws.auth.BasicAWSCredentials;
import com.amazonaws.services.s3.AmazonS3Client;
import com.amazonaws.services.s3.model.CannedAccessControlList;
import com.amazonaws.services.s3.model.GeneratePresignedUrlRequest;
import com.amazonaws.services.s3.model.ObjectMetadata;
import org.springframework.web.multipart.MultipartFile;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
import java.util.Random;
import java.util.UUID;
public class MoveyunUtils {
public static String upload(MultipartFile file, String fileName) throws IOException {
InputStream inputStream = file.getInputStream();
String filePath = LocalDateTime.now().format(DateTimeFormatter.ofPattern("yyyy-MM-dd")) + "/" + UUID.randomUUID() + "/" + fileName;
ClientConfiguration opts = new ClientConfiguration();
opts.setSignerOverride("S3SignerType");
AWSCredentials credentials = new BasicAWSCredentials("<accessKey>", "<secretKey>");
AmazonS3Client client = new AmazonS3Client(credentials, opts);
client.setEndpoint("<hostName>");
client.setBucketAcl("<bucketName>", CannedAccessControlList.PublicRead);
ObjectMetadata meta = new ObjectMetadata();
meta.setContentLength(file.getSize());
client.putObject("<bucketName>", filePath, inputStream, meta);
client.setObjectAcl("<bucketName>", filePath, CannedAccessControlList.PublicRead);
GeneratePresignedUrlRequest request = new GeneratePresignedUrlRequest("<bucketName>", filePath);
URL url = client.generatePresignedUrl(request);
filePath = url.getHost() + url.getPath();
return filePath;
}
}
|
上面的代码可以支持最高5G的文件上传并返回文件路径，这里对对文件名做了些处理
首先是LocalDateTime.now().format(DateTimeFormatter.ofPattern("yyyy-MM-dd"))生成的日期
作为控制台目录查看时，能根据日期分目录
然后是使用了UUID.randomUUID()作为二级目录，这样就可以保留我们原有的文件名