springboot使用腾讯云对象存储

一时失言乱红尘 2023-01-08 10:23 203阅读 0赞

原以为对象存储很难 毕竟之前我用了下 发现完全不会

今天静下心来研究了下 发现其实挺简单的

直接搜索  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDM1MzUwNw_size_16_color_FFFFFF_t_70]  
点击这个  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDM1MzUwNw_size_16_color_FFFFFF_t_70 1]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDM1MzUwNw_size_16_color_FFFFFF_t_70 2]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDM1MzUwNw_size_16_color_FFFFFF_t_70 3]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDM1MzUwNw_size_16_color_FFFFFF_t_70 4]  
**这个秘钥很重要 需要保存好**

点击配置  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDM1MzUwNw_size_16_color_FFFFFF_t_70 5]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDM1MzUwNw_size_16_color_FFFFFF_t_70 6]  
加上这三个 一共是五个数据 我们都是要用到的

导入依赖

<dependency>
                <groupId>com.qcloud</groupId>
                <artifactId>cos_api</artifactId>
                <version>5.6.24</version>
            </dependency>

配置文件

#API密钥secretId
    spring.qcloud.secretId=
    #API密钥secretKey
    spring.qcloud.secretKey=
    #存储桶所属地域
    spring.qcloud.region=ap-nanjing
    #存储桶空间名称
    spring.qcloud.bucketName=
    #存储桶访问域名
    spring.qcloud.url=
    #上传文件前缀路径(eg:/images/) 
    spring.qcloud.prefix=/images/

若是这样配置 就会在相应了目录下 生成这样的文件夹  
![在这里插入图片描述][20210119214403244.png]

上传文件的工具类

/** * 腾讯云对象存储工具类 */
    public class QCloudCosUtils { 
        //API密钥secretId
        private String secretId;
        //API密钥secretKey
        private String secretKey;
        //存储桶所属地域
        private String region;
        //存储桶空间名称
        private String bucketName;
        //存储桶访问域名
        private String url;
        //上传文件前缀路径(eg:/images/)
        private String prefix;
    
        public String getSecretId() { 
            return secretId;
        }
    
        public void setSecretId(String secretId) { 
            this.secretId = secretId;
        }
    
        public String getSecretKey() { 
            return secretKey;
        }
    
        public void setSecretKey(String secretKey) { 
            this.secretKey = secretKey;
        }
    
        public String getRegion() { 
            return region;
        }
    
        public void setRegion(String region) { 
            this.region = region;
        }
    
        public String getBucketName() { 
            return bucketName;
        }
    
        public void setBucketName(String bucketName) { 
            this.bucketName = bucketName;
        }
    
        public String getUrl() { 
            return url;
        }
    
        public void setUrl(String url) { 
            this.url = url;
        }
    
        public String getPrefix() { 
            return prefix;
        }
    
        public void setPrefix(String prefix) { 
            this.prefix = prefix;
        }
    
        /** * 上传File类型的文件 * @param file * @return 上传文件在存储桶的链接 */
        public  String upload(File file) { 
            //生成唯一文件名
            String newFileName = generateUniqueName(file.getName());
            //文件在存储桶中的key
            String key = prefix+newFileName;
            //声明客户端
            COSClient cosClient=null;
            try { 
                //初始化用户身份信息(secretId,secretKey)
                COSCredentials cosCredentials = new BasicCOSCredentials(secretId, secretKey);
                //设置bucket的区域
                ClientConfig clientConfig = new ClientConfig(new Region(region));
                //生成cos客户端
                cosClient = new COSClient(cosCredentials, clientConfig);
                //创建存储对象的请求
                PutObjectRequest putObjectRequest = new PutObjectRequest(bucketName, key, file);
                //执行上传并返回结果信息
                PutObjectResult putObjectResult = cosClient.putObject(putObjectRequest);
                return url+key;
            } catch (CosClientException e) { 
                e.printStackTrace();
            } finally { 
                cosClient.shutdown();
            }
            return null;
        }
    
        /** * upload()重载方法 * @param multipartFile * @return 上传文件在存储桶的链接 */
        public String upload(MultipartFile multipartFile) { 
            System.out.println(multipartFile);
            //生成唯一文件名
            String newFileName = generateUniqueName(multipartFile.getOriginalFilename());
            //文件在存储桶中的key
            String key = prefix+newFileName;
            //声明客户端
            COSClient cosClient = null;
            //准备将MultipartFile类型转为File类型
            File file = null;
            try { 
                //生成临时文件
                file = File.createTempFile("temp",null);
                //将MultipartFile类型转为File类型
                multipartFile.transferTo(file);
                //初始化用户身份信息(secretId,secretKey)
                COSCredentials cosCredentials = new BasicCOSCredentials(secretId, secretKey);
                //设置bucket的区域
                ClientConfig clientConfig = new ClientConfig(new Region(region));
                //生成cos客户端
                cosClient = new COSClient(cosCredentials, clientConfig);
                //创建存储对象的请求
                PutObjectRequest putObjectRequest = new PutObjectRequest(bucketName, key, file);
                //执行上传并返回结果信息
                PutObjectResult putObjectResult = cosClient.putObject(putObjectRequest);
                return url+key;
            } catch (IOException e) { 
                e.printStackTrace();
            } finally { 
                cosClient.shutdown();
            }
            return null;
        }
    
        /** * 根据UUID生成唯一文件名 * @param originalName * @return */
        public String generateUniqueName(String originalName) { 
            return UUID.randomUUID() + originalName.substring(originalName.lastIndexOf("."));
        }
    }

配置注入

/** * 配置注入 */
    @Configuration
    public class QCloudCosUtilsConfig { 
        @ConfigurationProperties(prefix = "spring.qcloud")
        @Bean
        public QCloudCosUtils qcloudCosUtils() { 
            return new QCloudCosUtils();
        }
    }

接口类

/** *上唇文件接口 */
    public interface FileUploadService { 
        /** * 处理浏览器文件上传请求 * @param multipartFile * @return */
        String upload(MultipartFile multipartFile);
    
        /** * 处理普通文件上传 * @param file * @return */
        String upload(File file);
    }

接口实现类

@Service
    public class FileUploadServiceImpl implements FileUploadService { 
    
        @Autowired
        private QCloudCosUtils qCloudCosUtils;
        @Override
        public String upload(MultipartFile multipartFile) { 
           return qCloudCosUtils.upload(multipartFile);
        }
    
        @Override
        public String upload(File file) { 
            return qCloudCosUtils.upload(file);
        }
    }

直接controller调用就好啦

如果需要回显 service会返回对应的图片路径 直接就能访问了

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[20210119214403244.png]: /images/20221119/1f26b55966cb470c8ad37abee9270fdd.png