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java实现上传文件到oss(阿里云)功能示例

2020-03-11 17:51 162 查看

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：

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;
}
}
}

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希望本文所述对大家java程序设计有所帮助。

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