OSS文件上传-进度条

---

title: OSS文件上传+进度条
categories:

• JAVA
  tags:
• oss
• java
  abbrlink: 2391132726
  date: 2019-10-23 20:13:09

---

---

文件上传——ossutil.putObject

工具类

//工具类
package com.*.website.util;

import com.aliyun.oss.ClientException;
import com.aliyun.oss.OSSClient;
import com.aliyun.oss.OSSException;
import com.aliyun.oss.event.ProgressEvent;
import com.aliyun.oss.event.ProgressEventType;
import com.aliyun.oss.event.ProgressListener;
import com.aliyun.oss.model.CannedAccessControlList;
import com.aliyun.oss.model.CreateBucketRequest;
import com.aliyun.oss.model.PutObjectRequest;
import com.aliyun.oss.model.PutObjectResult;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.web.multipart.MultipartFile;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import java.io.File;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.UUID;

import static com.*.website.config.OSSConstantProperties.*;

/**
 * @author:leeyf
 * @create: 2019-07-26 09:42
 * @Description: OSS工具类
 */
public class OSSUtil {
    /**
     * The uploading progress listener. Its progressChanged API is called by the SDK when there's an update.
     */
    static class PutObjectProgressListener implements ProgressListener {
        private HttpSession session;
        private long bytesWritten = 0;
        private long totalBytes = -1;
        private boolean succeed = false;
        private int percent = 0;

        //构造方法中加入session
        public PutObjectProgressListener() {
        }
        public PutObjectProgressListener(HttpSession mSession) {
            this.session = mSession;
            session.setAttribute("upload_percent", percent);
        }

        @Override
        public void progressChanged(ProgressEvent progressEvent) {
            long bytes = progressEvent.getBytes();
            ProgressEventType eventType = progressEvent.getEventType();
            switch (eventType) {
                case TRANSFER_STARTED_EVENT:
                    System.out.println("Start to upload......");
                    break;

                case REQUEST_CONTENT_LENGTH_EVENT:
                    this.totalBytes = bytes;
                    System.out.println(this.totalBytes + " bytes in total will be uploaded to OSS");
                    break;

                case REQUEST_BYTE_TRANSFER_EVENT:
                    this.bytesWritten += bytes;
                    if (this.totalBytes != -1) {
                        int percent = (int)(this.bytesWritten * 100.0 / this.totalBytes);
                        //将进度percent放入session中
                        session.setAttribute("upload_percent", percent);

                        logger.info(bytes + " bytes have been written at this time, upload progress: " +
                                percent + "%(" + this.bytesWritten + "/" + this.totalBytes + ")");
                    } else {
                        logger.info(bytes + " bytes have been written at this time, upload ratio: unknown" +
                                "(" + this.bytesWritten + "/...)");
                    }
                    break;

                case TRANSFER_COMPLETED_EVENT:
                    this.succeed = true;
                    System.out.println("Succeed to upload, " + this.bytesWritten + " bytes have been transferred in total");
                    break;

                case TRANSFER_FAILED_EVENT:
                    System.out.println("Failed to upload, " + this.bytesWritten + " bytes have been transferred");
                    break;

                default:
                    break;
            }
        }

        public boolean isSucceed() {
            return succeed;
        }
    }
    static Logger logger = LoggerFactory.getLogger(OSSUtil.class);
    //oss访问域名，在oss后台添加bucket之后 查看
    private static String endpoint = JAVA4ALL_END_POINT;
    // accessKeyId和accessKeySecret是OSS的访问密钥
    private static String accessKeyId = JAVA4ALL_ACCESS_KEY_ID;
    private static String accessKeySecret = JAVA4ALL_ACCESS_KEY_SECRET;
    //bucketName
    private static String bucketName = JAVA4ALL_BUCKET_NAME;
    // Object是OSS存储数据的基本单元，称为OSS的对象，也被称为OSS的文件
    private static String fileHost = JAVA4ALL_FILE_HOST;

    static SimpleDateFormat format = new SimpleDateFormat("yyyyMMdd");
    static String dateStr = format.format(new Date());


    //文件上传
    public static String upload(File file, HttpServletRequest request) throws UnsupportedEncodingException {

        if(null == file){
            return null;
        }
        OSSClient ossClient = new OSSClient(endpoint,accessKeyId,accessKeySecret);
        //容器不存在，就创建
        if(! ossClient.doesBucketExist(bucketName)){
            ossClient.createBucket(bucketName);
            CreateBucketRequest createBucketRequest = new CreateBucketRequest(bucketName);
            createBucketRequest.setCannedACL(CannedAccessControlList.PublicRead);
            ossClient.createBucket(createBucketRequest);
        }
        //创建文件路径
        String fileUrl = fileHost+"/"+(dateStr + "/" + UUID.randomUUID().toString().replace("-","")+"-"+file.getName());
        try {
            //ossClient.putObject(new PutObjectRequest(bucketName, fileUrl, file)).<PutObjectRequest>withProgressListener(new PutObjectProgressListener()));
            //设置权限 这里是公开读
            ossClient.setBucketAcl(bucketName,CannedAccessControlList.PublicRead);
            //上传文件
            PutObjectResult result = ossClient.putObject(new PutObjectRequest(bucketName, fileUrl, file)
                    .<PutObjectRequest>withProgressListener(new PutObjectProgressListener(request.getSession())));
            if(null != result){
                logger.info("==========>OSS文件上传成功,OSS地址："+fileUrl);
                logger.info("==========>OSS文件上传成功,访问地址："+URL+fileUrl);
                return URL+fileUrl;
            }
        } catch (OSSException oe) {
            logger.error("Caught an OSSException, which means your request made it to OSS, "
                    + "but was rejected with an error response for some reason.Error Message: " + oe.getErrorCode()
                    + "Error Code:" + oe.getErrorCode() + "Request ID:" + oe.getRequestId() + "Host ID:" + oe.getHostId(), oe);
            throw new OSSException(oe.getErrorMessage(), oe);
        } catch (ClientException ce) {
            logger.error("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.Error Message:" + ce.getMessage(), ce);
            throw new ClientException(ce);
        } finally {
            //关闭
            ossClient.shutdown();
        }

        return null;
    }

    //文件上传
    public static String uploadMultipartFile(MultipartFile multipartFile) throws IOException {
        // 获取文件名
        String fileName = multipartFile.getOriginalFilename();
        // 获取文件后缀
        String prefix=fileName.substring(fileName.lastIndexOf("."));
        // 用uuid作为文件名，防止生成的临时文件重复
        final File excelFile = File.createTempFile(UUID.randomUUID().toString(), prefix);

        multipartFile.transferTo(excelFile);
        if(null == excelFile){
            return null;
        }
        OSSClient ossClient = new OSSClient(endpoint,accessKeyId,accessKeySecret);
        //容器不存在，就创建
        if(! ossClient.doesBucketExist(bucketName)){
            ossClient.createBucket(bucketName);
            CreateBucketRequest createBucketRequest = new CreateBucketRequest(bucketName);
            createBucketRequest.setCannedACL(CannedAccessControlList.PublicRead);
            ossClient.createBucket(createBucketRequest);
        }
        //创建文件路径
        String fileUrl = fileHost+"/"+(dateStr + "/" + UUID.randomUUID().toString().replace("-","")+"-"+multipartFile.getName());
        //上传文件
        PutObjectResult result = ossClient.putObject(new PutObjectRequest(bucketName, fileUrl, excelFile));
        //设置权限 这里是公开读
        ossClient.setBucketAcl(bucketName,CannedAccessControlList.PublicRead);

        if(null != result){
            logger.info("==========>OSS文件上传成功,OSS地址："+fileUrl);
            logger.info("==========>OSS文件上传成功,访问地址："+URL+fileUrl);
            return URL+fileUrl;
        }
        //关闭
        ossClient.shutdown();
        return null;
    }

    public static void delete(String url){
        String[] strings= url.split(".com/");
        OSSClient ossClient = new OSSClient(endpoint,accessKeyId,accessKeySecret);
        ossClient.deleteObject(bucketName,strings[1]);
        logger.info("==========>OSS文件删除成功");

    }

}

控制层

//控制层
package com.*.website.controller;

import com.*.website.enums.ErrorCodeEnum;
import com.*.website.response.ServerResponse;
import com.*.website.util.OSSUtil;
import io.swagger.annotations.ApiOperation;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import java.io.File;
import java.io.IOException;
import java.util.UUID;

@RestController
@RequestMapping("/oss")
public class OSSController {

    /**
     * 上传文件
     * @param file 文件
     * @return ServerResponse
     */
    @ApiOperation("通用上传文件接口")
    @PostMapping("/uploadFile")
    public ServerResponse<Object> uploadFile(MultipartFile file,HttpServletRequest request){


        try {


            // 获取文件名
            String fileName = file.getOriginalFilename();
            // 获取文件后缀
            assert fileName != null;
            String prefix=fileName.substring(fileName.lastIndexOf("."));
            // 用uuid作为文件名，防止生成的临时文件重复
            final File excelFile = File.createTempFile(UUID.randomUUID().toString(), prefix);

            file.transferTo(excelFile);

            String url = OSSUtil.upload(excelFile,request);

            //程序结束时，删除临时文件
            deleteFile(excelFile);

            return ServerResponse.createBySuccess(url);

        } catch (Exception e){
            e.printStackTrace();
            return ServerResponse.createByErrorCodeMessage(ErrorCodeEnum.IMAGE_UPLOAD_ERROR);
        }

    }
    @ApiOperation("通用图片上传接口")
    @PostMapping("/uploadPic")
    public ServerResponse uploadPic(MultipartFile file) throws IOException {
        String url= OSSUtil.uploadMultipartFile(file);
        return ServerResponse.createBySuccess(url);
    }


    /**
     * 删除
     * @param files 文件们
     */
    private void deleteFile(File... files) {
        for (File file : files) {
            if (file.exists()) {
                file.deleteOnExit();
            }
        }
    }

    /**
     * 获取实时长传进度
     * @param request
     * @return
     */
    @GetMapping("/item/percent")
    @ResponseBody
    public int getUploadPercent(HttpServletRequest request){
        HttpSession session = request.getSession();
        int percent = session.getAttribute("upload_percent") == null ? 0: (int) session.getAttribute("upload_percent");
        return percent;
    }

    /**
     * 重置上传进度
     * @param request
     * @return
     */
    @GetMapping ("/percent/reset")
    public void resetPercent(HttpServletRequest request){
        HttpSession session = request.getSession();
        session.setAttribute("upload_percent",0);
    }


}

配置类

//配置类
package com.*.website.config;

import org.springframework.beans.factory.InitializingBean;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Configuration;

@Configuration
public class OSSConstantProperties implements InitializingBean {

    @Value("${java4all.file.endpoint}")
    private String java4all_file_endpoint;

    @Value("${java4all.file.keyid}")
    private String java4all_file_keyid;

    @Value("${java4all.file.keysecret}")
    private String java4all_file_keysecret;

    @Value("${java4all.file.filehost}")
    private String java4all_file_filehost;

    @Value("${java4all.file.bucketname}")
    private String java4all_file_bucketname;


    public static String JAVA4ALL_END_POINT         ;
    public static String JAVA4ALL_ACCESS_KEY_ID     ;
    public static String JAVA4ALL_ACCESS_KEY_SECRET ;
    public static String JAVA4ALL_BUCKET_NAME       ;
    public static String JAVA4ALL_FILE_HOST         ;
    public static String URL ="https://*.oss-cn-beijing.aliyuncs.com/"         ;
    @Override
    public void afterPropertiesSet() throws Exception {
        JAVA4ALL_END_POINT = java4all_file_endpoint;
        JAVA4ALL_ACCESS_KEY_ID = java4all_file_keyid;
        JAVA4ALL_ACCESS_KEY_SECRET = java4all_file_keysecret;
        JAVA4ALL_FILE_HOST = java4all_file_filehost;
        JAVA4ALL_BUCKET_NAME = java4all_file_bucketname;
    }
}

基础的文件上传跟进度条添加都有，具体的可以看备注

来源：https://blog.csdn.net/qq_34691097/article/details/102729239