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java实现上传文件到oss(阿里云)功能示例

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2021-12-17 / 0 评论 / 0 点赞 / 207 阅读 / 5,573 字 / 正在检测是否收录...

本文实例讲述了java实现上传文件到oss(阿里云)功能。分享给大家供大家参考,具体如下

阿里云demo网址:https://help.aliyun.com/document_detail/32011.html
api网址:https://api.aliyun.com/#/?product=Oss

image.png

做这个功能之前我们需要导入阿里云OSS官方提供的工具包

aliyun-sdk-oss-2.5.0.jar 这个文件 如果有最新版的话就下载最新版

aliyun.upload.AliyunConfig
package aliyun.upload;
public final class AliyunConfig
{
  //你的oss所在域,要加http://  不明白可以对照你的文件引用地址
  public static String endpoint = "http://oss-cn-shenzhen.aliyuncs.com";
  //密匙keyId 可以在阿里云获取到
  public static String accessKeyId = "xxxxxxx";
  //密匙keySecret 可以在阿里云获取到
  public static String accessKeySecret = "";
  //你的bucketName 名称  即是你的OSS对象名称 不明白查oss开发文档专业术语
  public static String bucketName = "";
}

aliyun.upload.IAliyunUpload
package aliyun.upload;
public interface IAliyunUpload
{
  /**
   * @param
   * String filePathName 本地图片路径(D:/xxxx/xxxx....../xx/xx.jgp|xx.png|..)
   * String savePathName 将要保存到OSS上的路径地址
   * */
  public String uploadFile(String filePathName,String savePathName);
}
aliyun.upload.AliyunUploadVersion1
package aliyun.upload;
import java.io.File;
import java.io.IOException;
import com.aliyun.oss.ClientException;
import com.aliyun.oss.OSSClient;
import com.aliyun.oss.OSSException;
import com.aliyun.oss.model.CompleteMultipartUploadResult;
import com.aliyun.oss.model.UploadFileRequest;
import com.aliyun.oss.model.UploadFileResult;
import Log.Log;
/**
 * 阿里云文件上传 - 简易版
 * */
public class AliyunUploadVersion1 implements IAliyunUpload
{
  /**
   * 断点续传
   * */
  @Override
  public String uploadFile(String uploadFile,String savePathName)
  {
    OSSClient ossClient = new OSSClient(AliyunConfig.endpoint,AliyunConfig.accessKeyId,AliyunConfig.accessKeySecret);
    try {
      UploadFileRequest uploadFileRequest = new UploadFileRequest(AliyunConfig.bucketName,savePathName);
      // 待上传的本地文件
      uploadFileRequest.setUploadFile(uploadFile);
      // 设置并发下载数,默认1
      uploadFileRequest.setTaskNum(5);
      // 设置分片大小,默认100KB
      uploadFileRequest.setPartSize(1024 * 1024 * 1);
      // 开启断点续传,默认关闭
      uploadFileRequest.setEnableCheckpoint(true);
      UploadFileResult uploadResult = ossClient.uploadFile(uploadFileRequest);
      CompleteMultipartUploadResult multipartUploadResult =
          uploadResult.getMultipartUploadResult();
      return multipartUploadResult.getLocation();
    } catch (OSSException oe) {
      Log.e("*************************************************OSS upload file error create_date " + tool.Tool.getDate() + "*************************************");
      Log.e("Caught an OSSException,which means your request made it to OSS,"
          + "but was rejected with an error response for some reason.");
      Log.e("Error Message: " + oe.getErrorCode());
      Log.e("Error Code:    " + oe.getErrorCode());
      Log.e("Request ID:   " + oe.getRequestId());
      Log.e("Host ID:      " + oe.getHostId());
      Log.e("*************************************************OSS upload file error*************************************");
    } catch (ClientException ce) {
      Log.e("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.");
      Log.e("Error Message: " + ce.getMessage());
    } catch (Throwable e) {
      e.printStackTrace();
    } finally {
      ossClient.shutdown();
    }
    return null;
  }
}

文件上传容器

package aliyun.upload;
import org.springframework.stereotype.Repository;
@Repository("aliyun_upload")
public class AliyunUpload extends AliyunUploadVersion1
{
  /**
   * 上传文件
   * */
  @Override
  public String uploadFile(String filePath,String savePathName)
  {
    return super.uploadFile(filePath,savePathName);
  }
}

spring.beans.service.UploadService 文件上传服务

package spring.beans.service;
import java.io.File;
import java.io.IOException;
import java.util.Date;
import javax.servlet.http.HttpServletRequest;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.multipartfile;
import aliyun.upload.AliyunUpload;
import tool.RandomNumStr;
import tool.Tool;
@Service(value="upload_service")
public class UploadService
{
  //默认 本地存储路径
  private final String save_local_path = "D:/java_class/Company/WebRoot/";
  //默认 文件保存路径
  private String save_context_path = "Upload/images/";
  public void setSavePath(String savePath)
  {
    this.save_context_path = savePath;
  }
  /**
   * 阿里云文件上传
   * @param
   * multipartfile file 文件流
   * @return
   * String 文件引用路径 如 String filePath = "http://aliyun.xxxx.xxxx/xxxx/xxxx/xxxx.jpg"
   * */
  public String aliyunUploadFile(multipartfile file)
  {
    //获取文件名称
    String fileName = file.getOriginalFilename();
    //生成存储路径
    String save_handler_path = save_local_path + save_context_path;
    //获得文件后缀
    String prefix=fileName.substring(fileName.lastIndexOf("."));
    //存储目录
    File parentDir = new File(save_handler_path);
    //存储目录是否存在
    if(!parentDir.exists())
    {
      parentDir.mkdirs();
    }
    //生成文件存储名称
    String fileSaveName = RandomNumStr.createRandomString(7) + String.valueOf(new Date().getTime()) + prefix;
    try{
      File saveFile = new File(save_handler_path,fileSaveName);
      //移动临时文件
      file.transferTo(saveFile);
      //新增阿里云文件上传
      AliyunUpload aliyunUpload = new AliyunUpload();
      String fileUrl = aliyunUpload.uploadFile(save_handler_path+fileSaveName,save_context_path+fileSaveName);
      saveFile.delete();
      return fileUrl;
    }catch(IOException e)
    {
      return null;
    }
  }
  /**
   * 文件存储
   * @param
   * MyltipartFile file 文件资源
   * @return
   * 文件文件存储地址
   * */
  public String localUploadFile(multipartfile file,HttpServletRequest request)
  {
    //获取文件名称
    String fileName = file.getOriginalFilename();
    //生成存储路径
    String save_handler_path = save_local_path + save_context_path;
    //获得文件后缀
    String prefix=fileName.substring(fileName.lastIndexOf("."));
    //存储目录
    File parentDir = new File(save_handler_path);
    //存储目录是否存在
    if(!parentDir.exists())
    {
      parentDir.mkdirs();
    }
    //生成文件存储名称
    String fileSaveName = RandomNumStr.createRandomString(7) + String.valueOf(new Date().getTime()) + prefix;
    try{
      //移动临时文件
      file.transferTo(new File(save_handler_path,fileSaveName));
      //文件地址
      return Tool.getDomain(request) + save_context_path + fileSaveName;
    }catch(IOException e)
    {
      return null;
    }
  }
}

本文转载自:https://www.jb51.cc/java/526397.html

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