java實現上傳檔案到oss(阿里雲)功能示例

阿新 • • 發佈：2020-01-07

本文例項講述了java實現上傳檔案到oss(阿里雲)功能。分享給大家供大家參考，具體如下：

做這個功能之前我們需要匯入阿里雲OSS官方提供的工具包

aliyun-sdk-oss-2.5.0.jar 這個檔案如果有最新版的話就下載最新版

aliyun.upload.AliyunConfig
package aliyun.upload;
public final class AliyunConfig 
{
  //你的oss所在域，要加http://  不明白可以對照你的檔案引用地址
  public static String endpoint = "http://oss-cn-shenzhen.aliyuncs.com";
  //密匙keyId 可以在阿里雲獲取到
  public static String accessKeyId = "xxxxxxx";
  //密匙keySecret 可以在阿里雲獲取到
  public static String accessKeySecret = "";
  //你的bucketName 名稱  即是你的OSS物件名稱 不明白查oss開發文件專業術語 
  public static String bucketName = "";
}

aliyun.upload.IAliyunUpload
package aliyun.upload;
public interface IAliyunUpload 
{
  /**
   * @param
   * String filePathName 本地圖片路徑（D:/xxxx/xxxx....../xx/xx.jgp|xx.png|..）
   * String savePathName 將要儲存到OSS上的路徑地址
   * */
  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;
/**
 * 阿里雲檔案上傳 - 簡易版
 * */
public class AliyunUploadVersion1 implements IAliyunUpload
{
  /**
   * 斷點續傳
   * */
  @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);
      // 待上傳的本地檔案
      uploadFileRequest.setUploadFile(uploadFile);
      // 設定併發下載數，預設1
      uploadFileRequest.setTaskNum(5);
      // 設定分片大小，預設100KB
      uploadFileRequest.setPartSize(1024 * 1024 * 1);
      // 開啟斷點續傳，預設關閉
      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;
  }
}

檔案上傳容器

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

spring.beans.service.UploadService 檔案上傳服務

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 
{
  //預設 本地儲存路徑
  private final String save_local_path = "D:/java_class/Company/WebRoot/";
  //預設 檔案儲存路徑
  private String save_context_path = "Upload/images/";
  public void setSavePath(String savePath)
  {
    this.save_context_path = savePath;
  }
  /**
   * 阿里雲檔案上傳
   * @param
   * MultipartFile file 檔案流
   * @return
   * String 檔案引用路徑 如 String filePath = "http://aliyun.xxxx.xxxx/xxxx/xxxx/xxxx.jpg"
   * */
  public String aliyunUploadFile(MultipartFile file)
  {
    //獲取檔名稱
    String fileName = file.getOriginalFilename();
    //生成儲存路徑
    String save_handler_path = save_local_path + save_context_path;
    //獲得檔案字尾
    String prefix=fileName.substring(fileName.lastIndexOf("."));
    //儲存目錄
    File parentDir = new File(save_handler_path);
    //儲存目錄是否存在
    if(!parentDir.exists())
    {
      parentDir.mkdirs();
    }
    //生成檔案儲存名稱
    String fileSaveName = RandomNumStr.createRandomString(7) + String.valueOf(new Date().getTime()) + prefix;
    try{
      File saveFile = new File(save_handler_path,fileSaveName);
      //移動臨時檔案
      file.transferTo(saveFile);
      //新增阿里雲檔案上傳
      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;
    }
  }
  /**
   * 檔案儲存
   * @param
   * MyltipartFile file 檔案資源
   * @return
   * 檔案檔案儲存地址
   * */
  public String localUploadFile(MultipartFile file,HttpServletRequest request)
  {
    //獲取檔名稱
    String fileName = file.getOriginalFilename();
    //生成儲存路徑
    String save_handler_path = save_local_path + save_context_path;
    //獲得檔案字尾
    String prefix=fileName.substring(fileName.lastIndexOf("."));
    //儲存目錄
    File parentDir = new File(save_handler_path);
    //儲存目錄是否存在
    if(!parentDir.exists())
    {
      parentDir.mkdirs();
    }
    //生成檔案儲存名稱
    String fileSaveName = RandomNumStr.createRandomString(7) + String.valueOf(new Date().getTime()) + prefix;
    try{
      //移動臨時檔案
      file.transferTo(new File(save_handler_path,fileSaveName));
      //檔案地址
      return Tool.getDomain(request) + save_context_path + fileSaveName;
    }catch(IOException e)
    {
      return null;
    }
  }
}

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希望本文所述對大家java程式設計有所幫助。