Java使用OSS实现上传文件功能

<dependency>
    <groupId>com.aliyun.oss</groupId>
    <artifactId>aliyun-sdk-oss</artifactId>
    <version>3.1.0</version>
</dependency>

#服务端口
server.port=8002
#服务名
spring.application.name=service-oss

#环境设置：dev、test、prod
spring.profiles.active=dev

#阿里云 OSS
#不同的服务器，地址不同
aliyun.oss.file.endpoint=oss-cn-beijing.aliyuncs.com
aliyun.oss.file.keyid=自己的keyid
aliyun.oss.file.keysecret=自己的keysecret
#bucket可以在控制台创建，也可以使用java代码创建
aliyun.oss.file.bucketname=自己创建的bucket名字

package com.gyb.eduoss.utils;

import lombok.Data;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;

/**
 * @Author: 郜宇博
 * @Date: 2021/9/30 14:54
 */
@Component
@ConfigurationProperties(prefix = "aliyun.oss.file")
@Data
public class AliyunOSSProUtil {
    private String endpoint;
    private String keyid;
    private String keysecret;
    private String bucketname;


}

package com.gyb.eduoss.service.impl;

import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.gyb.eduoss.service.OssService;
import com.gyb.eduoss.utils.AliyunOSSProUtil;
import org.joda.time.DateTime;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import java.io.IOException;
import java.io.InputStream;

/**
 * @Author: 郜宇博
 * @Date: 2021/9/30 15:53
 */
@Service
public class OssServiceImpl implements OssService {
    @Autowired
    AliyunOSSProUtil aliyunOSSProUtil;

    @Override
    public String uploadFileAvatar(MultipartFile multipartFile) {
        //从工具类获取配置文件中的oss值
        String endpoint = aliyunOSSProUtil.getEndpoint();
        String accessKeyId = aliyunOSSProUtil.getKeyid();
        String accessKeySecret = aliyunOSSProUtil.getKeysecret();
        String bucketName = aliyunOSSProUtil.getBucketname();
        System.out.println("endponit:"+endpoint);
        // 创建OSSClient实例。
        OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);

        // 填写本地文件的完整路径。
        // 如果未指定本地路径，则默认从示例程序所属项目对应本地路径中上传文件流。
        InputStream inputStream;
        try {
            inputStream = multipartFile.getInputStream();

            //参数一：依次填写Bucket名称
            // 参数二：文件名称，或Object完整路径（例如exampledir/exampleobject.txt）。Object完整路径中不能包含Bucket名称。
            // 参数三：输入流
            String currentTime = String.valueOf(System.currentTimeMillis());
            String currentDate = new DateTime().toString("yyyy/MM/dd");
            String  originalFileName = multipartFile.getOriginalFilename();
            String fileName = currentDate+"/"+currentTime+originalFileName;
            ossClient.putObject(bucketName,fileName, inputStream);
            String url = "https://"+bucketName+"."+endpoint+"/"+fileName;
            return url;

        } catch (IOException e) {
            e.printStackTrace();
        }finally {
            // 关闭OSSClient。
            ossClient.shutdown();
        }
        return null;
    }
}

package com.gyb.eduoss.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.multipart.MultipartResolver;
import org.springframework.web.multipart.commons.CommonsMultipartResolver;

/**
 * @Author: 郜宇博
 * @Date: 2021/10/2 00:21
 */
@Configuration
public class UploadConfig {
    @Bean(name = "multipartResolver")
    public MultipartResolver multipartResolver() {
        CommonsMultipartResolver resolver = new CommonsMultipartResolver();
        resolver.setDefaultEncoding("UTF-8");
        //resolveLazily属性启用是为了推迟文件解析，以在在UploadAction中捕获文件大小异常
        resolver.setResolveLazily(true);
        resolver.setMaxInMemorySize(40960);
        //上传文件大小 5M 5*1024*1024
        resolver.setMaxUploadSize(5 * 1024 * 1024);
        return resolver;
    }
}

server {
        listen       9001;
		server_name  localhost;
#代表带有eduservice路径的请求都走http://localhost:8001
        location ~ /eduservice/ {
            proxy_pass http://localhost:8001;
        }
#代表带有eduoss的请求都走http://localhost:8002		
		location ~ /eduoss/ {
            proxy_pass http://localhost:8002;
        }
    }