阿里云oss存储相关笔记

首先配置端口，密钥，bucket-name

sky:
  alioss:
    endpoint: ${sky.alioss.endpoint}
    access-key-id: ${access-key-id}
    access-key-secret: ${access-key-secret}
    bucket-name: ${bucket-name}

//
spring:
  profiles:
    active: dev

//通过关联dev环境来获取具体配置的值
//application.dev
sky:
  alioss:
    endpoint: oss-cn-chengdu.aliyuncs.com
    access-key-id: LTAI5tAneksLQLagmqRHxAYh
    access-key-secret: jf6z7KYpdzqj8I3kjVlal2d9j3etwy
    bucket-name: web-tilas-seti

//所配置的值传入AliOssProperties
package com.sky.properties;

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

@Component
@ConfigurationProperties(prefix = "sky.alioss")//与配置文件关联，得到参数值
@Data
public class AliOssProperties {

    private String endpoint;
    private String accessKeyId;
    private String accessKeySecret;
    private String bucketName;

}

创建oss工具类（此部分代码格式固定）

package com.sky.utils;

import com.aliyun.oss.ClientException;
import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.OSSException;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.extern.slf4j.Slf4j;
import java.io.ByteArrayInputStream;

@Data
@AllArgsConstructor
@Slf4j
public class AliOssUtil {

    private String endpoint;
    private String accessKeyId;
    private String accessKeySecret;
    private String bucketName;

    /**
     * 文件上传
     *
     * @param bytes
     * @param objectName
     * @return
     */
    public String upload(byte[] bytes, String objectName) {

        // 创建OSSClient实例。
        OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);

        try {
            // 创建PutObject请求。
            ossClient.putObject(bucketName, objectName, new ByteArrayInputStream(bytes));
        } 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();
            }
        }

        //文件访问路径规则 https://BucketName.Endpoint/ObjectName
        //拼接一个正确的地址
        StringBuilder stringBuilder = new StringBuilder("https://");
        stringBuilder
                .append(bucketName)
                .append(".")
                .append(endpoint)
                .append("/")
                .append(objectName);

        log.info("文件上传到:{}", stringBuilder.toString());

        return stringBuilder.toString();
    }
}

创建一个配置类，将AliOssProperties里的值传入工具类

package com.sky.config;

import com.sky.properties.AliOssProperties;
import com.sky.utils.AliOssUtil;
import lombok.extern.slf4j.Slf4j;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

/**
 * @param
 * @return
 */
@Configuration
@Slf4j
public class OssConfiguration {
    @Bean
    @ConditionalOnMissingBean
    public AliOssUtil aliOssUtil(AliOssProperties aliOssProperties){
        log.info("开始创建阿里云文件上传对象:{}" ,aliOssProperties);
        return new AliOssUtil(aliOssProperties.getEndpoint(),
                aliOssProperties.getAccessKeyId(),
                aliOssProperties.getAccessKeySecret(),
                aliOssProperties.getBucketName());
    }

}

以上程序都是在程序启动时运行的，也就是说启动服务的时候配置参数就已加载

创建文件时的代码

package com.sky.controller.admin;

import com.sky.constant.MessageConstant;
import com.sky.result.Result;
import com.sky.utils.AliOssUtil;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;

import java.io.IOException;
import java.util.UUID;

/**
 * @param
 * @return
 */
@RestController
@Slf4j
@RequestMapping("/admin/common")
@Api(tags = "通用接口")
public class CommonController {

    @Autowired
    private AliOssUtil aliOssUtil;


    /**
     * 文件上传
     * @param file
     * @return
     */
    @PostMapping("/upload")
    @ApiOperation("上传文件")
    public Result<String> upload(MultipartFile file){
        log.info("上传文件:{}" ,file);
        try {
            //获取原始文件名
            String originalFilename = file.getOriginalFilename();
            //获取原始文件后缀名
            String extension = originalFilename.substring(originalFilename.lastIndexOf('.'));
            //拼接一个新的文件名
            String objectName = UUID.randomUUID() + extension;
            //将新的文件名传给aliOssUtil
            return Result.success(aliOssUtil.upload(file.getBytes(), objectName));
        } catch (IOException e) {
            log.error("文件上传失败:{}",e);
        }

        return Result.error(MessageConstant.UPLOAD_FAILED);
    }
}

将file.getBytes()和 objectName传入即可成功上传文件，并将文件路径返回前端，实现文件上传

阿里云oss存储相关笔记

悦读