上传图片至阿里云

上传图片至阿里云的工具类：

/**
 * Copyright(c) Jade Techonologies Co., Ltd.
 */

import com.aliyun.oss.ClientException;
import com.aliyun.oss.OSSClient;
import com.aliyun.oss.OSSException;
import com.aliyun.oss.model.PutObjectRequest;
import com.aliyun.oss.model.PutObjectResult;
import org.apache.log4j.Logger;
import sun.misc.BASE64Decoder;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.UUID;

/**
 * 图片上传
 *
 */
public class UploadPictureUtils {

    static Logger logger = Logger.getLogger(UploadPictureUtils.class);
    private static String endpoint = "";   // 阿里云地址
    private static String accessKeyId = "";  //阿里云信息
    private static String accessKeySecret = "";
    private static String bucketName = "";    //存到哪一个bucket（阿里云上的对象存储）

    /**
     * 图片上传（文件名重复不覆盖），保单号，图片类型，图片base64字符串
     *
     * @param fileName
     * @param type
     * @param pictureStr
     * @return
     * @throws IOException
     */
    public static String uploadPicture(String fileName, String type, String pictureStr, int count) throws IOException {
        String backUrl = "";
        OSSClient client = new OSSClient(endpoint, accessKeyId, accessKeySecret);

        try {
            // type和fileName可以自己定义 
            logger.info("开始上传图片，文件名称：" + fileName + "，类型：" + type);
            fileName = fileName + "LSJ" + UUID.randomUUID().toString().replace("-", "").toLowerCase();
            String key = type + "-" + fileName + count;
            PutObjectRequest putObjectRequest = new PutObjectRequest(bucketName, key, createTempFile(fileName, type, pictureStr));
            PutObjectResult putObjectResult = client.putObject(putObjectRequest);
            backUrl = "https://" + bucketName + "." + Constant.URLEndPoint + "/" + key;

        } catch (OSSException oe) {
            logger.info("Caught an OSSException, which means your request made it to OSS, but was rejected with an error response for some reason.");
            logger.info("Error Message: " + oe.getErrorCode());
            logger.info("Error Code:       " + oe.getErrorCode());
            logger.info("Request ID:      " + oe.getRequestId());
            logger.info("Host ID:           " + oe.getHostId());
        } catch (ClientException ce) {
            logger.info("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.");
            logger.info("Error Message: " + ce.getMessage());
        } finally {
            client.shutdown();
        }
        return backUrl;
    }

    /**
     * 图片上传（文件名重复覆盖），保单号，图片类型，图片base64字符串
     *
     * @param fileName
     * @param type
     * @param pictureStr
     * @return
     * @throws IOException
     */
    public static String uploadPictureRepeat(String fileName, String type, String pictureStr) throws IOException {
        String backUrl = "";
        OSSClient client = new OSSClient(endpoint, accessKeyId, accessKeySecret);

        try {
            logger.info("开始上传图片，文件名称：" + fileName + "，类型：" + type);
            String key = type + "-" + fileName;
            PutObjectRequest putObjectRequest = new PutObjectRequest(bucketName, key, createTempFile(fileName, type, pictureStr));
            PutObjectResult putObjectResult = client.putObject(putObjectRequest);
            backUrl = "https://" + bucketName + "." + Constant.URLEndPoint + "/" + key;

        } catch (OSSException oe) {
            logger.info("Caught an OSSException, which means your request made it to OSS, but was rejected with an error response for some reason.");
            logger.info("Error Message: " + oe.getErrorCode());
            logger.info("Error Code:       " + oe.getErrorCode());
            logger.info("Request ID:      " + oe.getRequestId());
            logger.info("Host ID:           " + oe.getHostId());
        } catch (ClientException ce) {
            logger.info("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.");
            logger.info("Error Message: " + ce.getMessage());
        } finally {
            client.shutdown();
        }
        return backUrl;
    }


    private static File createTempFile(String fileName, String type, String pictureStr) throws IOException {
        File file = File.createTempFile(type + "-" + fileName, ".jpg");
        file.deleteOnExit();
        OutputStream out = new FileOutputStream(file);
        if (pictureStr == null) //图像数据为空
        {
            logger.info("图像数据为空");
            return null;
        }
        BASE64Decoder decoder = new BASE64Decoder();
        try {
            //Base64解码
            byte[] b = decoder.decodeBuffer(pictureStr);
            for (int i = 0; i < b.length; ++i) {
                if (b[i] < 0) {//调整异常数据
                    b[i] += 256;
                }
            }
            out.write(b);
            out.flush();
            out.close();
        } catch (Exception e) {
            return null;
        }
        return file;
    }

    // 上传本地图片
    public static void main(String[] args) {
        String fileName = "white.png";
        String type = "test";

        File file = new File("C:\\test\\wizardmmp.jpg");
        String imageBase64 = Base64Utils.ImageToBase64ByLocal(file);
        String result = null;
        try {
            result = uploadPictureRepeat(fileName, type, imageBase64);
        } catch (IOException e) {
            e.printStackTrace();
        }
        System.out.println(result);
    }

}

 

前台提交图片时需转为base64格式上传，并且base64字符串需要截取，如图：