文件上传

package com.manageSystem.common.utils;

import com.aliyun.oss.ClientException;
import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.OSSException;
import com.aliyun.oss.model.PutObjectResult;
import com.aliyun.oss.model.UploadFileRequest;
import com.aliyun.oss.model.UploadFileResult;
import com.manageSystem.framework.web.domain.AjaxResult;
import org.apache.http.Consts;
import org.apache.http.HttpEntity;
import org.apache.http.entity.ContentType;
import org.apache.http.entity.mime.HttpMultipartMode;
import org.apache.http.entity.mime.MultipartEntityBuilder;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;
import org.springframework.web.multipart.MultipartFile;

import javax.xml.crypto.Data;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.net.URL;
import java.nio.charset.Charset;
import java.text.DecimalFormat;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;

/**
 *
 * @author cky
 * 代码来源阿里官网
 * 略有改动
 */
@Component
public class OssFileUpload {

    @Value("${oss.endPoint}")
    String endpoint;
    @Value("${oss.accessKeyId}")
    String accessKeyId = "yourAccessKeyId";
    @Value("${oss.accessKeySecret}")
    String accessKeySecret = "yourAccessKeySecret";
    @Value("${oss.bucketName}")
    String bucketName  ;

    public  List<URL> upload(MultipartFile[] files) throws IOException {
        MultipartEntityBuilder builder = MultipartEntityBuilder.create();
        DecimalFormat df = new DecimalFormat("#.##");

        HttpEntity multipart = builder.build();
       // 创建OSSClient实例。
       OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);

       try {
               List<URL> list = new ArrayList<>();
               for(MultipartFile multipartFile  : files) {
                   String objectName = LocalDate.now()+"/" +multipartFile.getOriginalFilename();
                   PutObjectResult putObjectResult = ossClient.putObject(bucketName,objectName,new ByteArrayInputStream(multipartFile.getBytes()));
                   Date date = new Date(System.currentTimeMillis()+1000*60*60*24*7);
                   URL url = ossClient.generatePresignedUrl(bucketName, objectName,date );
                   list.add(url);
               }
              return list;
           }
       catch (OSSException oe) {
          oe.printStackTrace();
       } catch (ClientException ce) {
         ce.printStackTrace();
       } catch (Throwable throwable) {
           throwable.printStackTrace();
       } finally {
           if (ossClient != null) {
               ossClient.shutdown();
           }
       }

       return null;
    }

    public String getSuffix(final MultipartFile file) {
        if (file == null || file.getSize() == 0) {
            return null;
        }
        String fileName = file.getOriginalFilename();
        return fileName.substring(fileName.lastIndexOf(".") + 1);

    }

}

    @ApiOperation("OSS文件上传")
    @PostMapping(value = "/common/oss/upload",consumes = MediaType.MULTIPART_FORM_DATA_VALUE)
    public AjaxResult uploadFile2(@RequestPart("file") MultipartFile[] file) {
        try {
            List<URL> upload = ossFileUpload.upload(file);
            return AjaxResult.success(upload);
        }catch (Exception e){e.printStackTrace();}

        return AjaxResult.error("oss上传失败");
    }