自留，今天给自己的springboot项目配置了OOS，记录一下防止忘记

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前言

其实最后好的方式是去官网看开发文档

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话不多说，上代码

一、oos是什么？

就是对象存储，存储文件的云服务

二、使用步骤

1.引入库

代码如下（示例）：

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

2.创建工具类（AliOssUtil）

代码如下（示例）：

package com.wendeyu.util;

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
        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();
    }
}

3、工具类参数补充

4个属性对应的oos需要的4个参数（存储区域地址、阿里云认证的AccessKeyId、对应的密钥AccessKeySecret、最后一个是你创建的Bucket名称）
我们创建一个类来存放这4个属性（便于后期管理）

package com.wendeyu.properties;

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

@Component
//@ConfigurationProperties(prefix = "sky.alioss")
@Data
public class AliOssProperties {
    private String endpoint = "oss-cn-beijing.aliyuncs.com";
    private String accessKeyId = "******";
    private String accessKeySecret="******";
    private String bucketName="******";
}

4、交给Spring去管理这个类

这些完成以后我们需要给该工具类作一个配置，让它进入IOC容器里面
创建配置类：

package com.wendeyu.serserver.config;


import com.wendeyu.properties.AliOssProperties;
import com.wendeyu.util.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;

/**
 * @author Jason Wen
 * @version 1.0
 *
 * 配置类，用于创建AliOssUtil对象
 */
@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工具类对象：{}",aliOssProperties);
        return new AliOssUtil(aliOssProperties.getEndpoint(),
                aliOssProperties.getAccessKeyId(),
                aliOssProperties.getAccessKeySecret(),
                aliOssProperties.getBucketName()
                );
    }
}

5、测试

在测试类里面运行该代码

   @Autowired
    private AliOssUtil aliOssUtil;

    @Test
    void contextLoads() {
        String content = "Hello OSS";
        aliOssUtil.upload(content.getBytes(),"1.txt");
    }

6、运行结果

可以看见已经成功上传

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总结

SpringBoot项目引入阿里云OOS对象存储的示例代码