SpringBoot学习——腾讯云文件上传+删除

  1. 创建储存桶 (后面会用到 储存库名称、访问域名、以及region) region(地域和访问域名)的查询参考: https://cloud.tencent.com/document/product/436/6224
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创建储存桶
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2.创建Api密钥 (后面会用到 secretId、secretKey)

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application.yml

代码语言:javascript
复制
qcloud:
  path: 域名地址
  bucketName: 储存库名称
  secretId: 密钥生成的secretId
  secretKey: 密钥生成的secretKey
  region: 地域简称
  prefix: /images/

编写工具类

代码语言:javascript
复制
import com.qcloud.cos.COSClient;
import com.qcloud.cos.ClientConfig;
import com.qcloud.cos.auth.BasicCOSCredentials;
import com.qcloud.cos.auth.COSCredentials;
import com.qcloud.cos.exception.CosClientException;
import com.qcloud.cos.exception.CosServiceException;
import com.qcloud.cos.model.PutObjectRequest;
import com.qcloud.cos.model.PutObjectResult;
import com.qcloud.cos.region.Region;
import lombok.Data;
import org.springframework.web.multipart.MultipartFile;

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

/**

  • @author

  • @date 2021/6/6 19:31

  • @role
    */
    @Data
    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 path;
    //上传文件前缀路径(eg:/images/)
    private String 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 path + 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 path + 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("."));
      }
      /
      *
    • 删除文件
      */
      public boolean deleteFile(String fileName) {
      String key = prefix + fileName;
      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);
      // 指定要删除的 bucket 和路径
      cosclient.deleteObject(bucketName, key);
      // 关闭客户端(关闭后台线程)
      cosclient.shutdown();
      }catch (CosClientException e) {
      e.printStackTrace();
      }
      return true;
      }
      }

QCloudCosUtilsConfig.java

代码语言:javascript
复制
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import studio.banner.officialwebsite.util.QCloudCosUtils;
/**
 * 腾讯云对象存储
 */
@Configuration
public class QCloudCosUtilsConfig {
    @ConfigurationProperties(prefix = "qcloud")
    @Bean
    public QCloudCosUtils qcloudCosUtils() {
        return new QCloudCosUtils();
    }
}

controller 测试

代码语言:javascript
复制
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiImplicitParam;
import io.swagger.annotations.ApiOperation;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;
import studio.banner.officialwebsite.entity.RespBean;
import studio.banner.officialwebsite.service.IFileUploadService;

/**

  • @author

  • @date 2021/6/6 19:42

  • @role
    */
    @RestController
    @Api(tags = "腾讯云上传接口", value = "TencentPhotoController")
    public class TencentPhotoController {
    protected static final Logger logger = LoggerFactory.getLogger(TencentPhotoController.class);
    @Autowired
    private IFileUploadService iFileUploadService;
    @PostMapping(value = "/upload")
    @ApiOperation(value = "腾讯云上传接口",notes = "上传图片不能为空",httpMethod = "POST")
    public RespBean upload(@RequestPart MultipartFile multipartFile) {
    String url = iFileUploadService.upload(multipartFile);
    return RespBean.ok("上传成功",url);
    }
    @DeleteMapping("delete")
    @ApiOperation(value = "腾讯云删除接口",httpMethod = "DELETE")
    @ApiImplicitParam(name = "fileName",value = "图片名",dataTypeClass = String.class)
    public RespBean delete(@RequestParam String fileName) {
    if (iFileUploadService.delete(fileName)){
    return RespBean.ok("删除成功");
    }
    return RespBean.error("删除失败");

    }

}