WebUploader实现图片上传功能

//导入 WebUploader插件js、CSS 样式
<link rel="stylesheet" type="text/css" href="${ctx}/css/plugins/webuploader/webuploader.css" />
<script type="text/javascript" src="${ctx}/js/plugins/webuploader/webuploader.js"></script>

//使用WebUploader插件做图片上传
function InfoWebUploaderImg(id, folder, image, imageHidden, queueID, filename){

  // 初始化Web Uploader
  var uploader = WebUploader.create({
    // 选完文件后，是否自动上传。
    auto: true,
    // swf文件路径 下载js 里面有.swf文件
    swf: '/js/plugins/webuploader/Uploader.swf',
    // 文件接收服务端。后台控制层
    server: '/common/upload',
    // 选择文件的按钮。可选。
    // 内部根据当前运行是创建，可能是input元素，也可能是flash.
    pick: id,
    // 只允许选择图片文件。
    accept: {
      title: 'Images',
      extensions: 'gif,jpg,jpeg,bmp,png',
      mimeTypes: 'image/gif,image/jpg,image/jpeg,image/bmp,image/png',
    },
  });
  
  uploader.on("error", function(type) {
    if (type == "Q_TYPE_DENIED") {
      alert("请上传图片格式文件");

    } else if (type == "F_EXCEED_SIZE") {
      alert("文件大小不能超过8M");
    }
  });

  // 文件上传失败，显示上传出错。
  uploader.on( 'uploadError', function( file ) {
    alert("上传失败,请重试!");
  });

  // 文件上传成功，给item添加成功class, 用样式标记上传成功。data回调的js 
  uploader.on('uploadSuccess', function(file,data) {
    $(imageHidden).val('/' + data.nname);
    $(image).attr("src", data.src);
    $(image).css("margin-top", "10px");
    $(image).show();
    $(image).removeClass("hide");
  });
}

//jsp页面
<div class="center-block">
        <div class="btn-group col-sm-12">
          <div class="fl">
           <div id="fileInput">选择图片</div>
           <img src=""
           class="wd200 mt10"
           id="image" width="200"/>
        </div>
    <span class="help-block m-b-none">图片大小：510x294</span>
    <input class="fORM-control" id="imageHidden" name="cover" type="text"/>
    </div>
</div>
 //引用 js初始化插件
  InfoWebUploaderImg("#fileInput", "spvideoimg", "#image", "input[name=cover]", "singleDiv");

//上传图片(阿里云) 控制层
@ResponseBody
  @RequestMapping(value = "/upload", method = RequestMethod.POST)
  public String upload(@RequestParam(value = "f", required = false, defaultValue = "") String f,
             String folder,
             MultiparthttpservletRequest request, HttpServletResponse response) {
    return commonService.upload(folder, f, request, response);
  }

//业务处理
 public String upload(String folder, String f, MultipartHttpServletRequest request, HttpServletResponse response) {
    log.info("CommonService上传图片(腾讯云):newFilename11:" + f);
    JSONObject jsonObject = new JSONObject();
    String result = "";
    try {
      Iterator<String> itr = request.getFileNames();
      MultipartFile file = null;
      String name = "";
      while (itr.hasNext()) {
        file = request.getFile(itr.next());
        name = file.getOriginalFilename();
        String newFilenameBase = UUID.randomUUID().toString().replace("-", "");
        String originalFileExtension = file.getOriginalFilename().substring(file.getOriginalFilename().lastIndexOf("."));
        String newFilename = newFilenameBase + originalFileExtension;
        if (!StringUtils.isBlank(f)) {
          if (f.startsWith(","))
            f.substring(1);
          newFilename = (f.contains(".") ? f.substring(0, f.lastIndexOf(".")) : f) + ".jpg";
        }
        newFilename = "img/" + newFilename;
        AliyunOssUtils.upLoadFile(newFilename,PropertyUtil.getValue("folder"),file);

        //TentunOssUtils.uploadImage(file, newFilename);
        
        jsonObject.put("src",CommonUtils.setImageVideoUrlSign(newFilename));

            jsonObject.put("oname", name);
        jsonObject.put("nname", newFilename);
        //删除暂存在root里的图片
        File tempFile = new File(name);
        if (tempFile != null && tempFile.exists()) {
          tempFile.delete();
        }
      }
    } catch (Exception e) {
      log.error("上传图片异常", e);
      jsonObject.put("e", e.getMessage());
    }
    result = jsonObject.toString();
    return result;
  }

  public static void upLoadFile(String filename,String folder, MultipartFile file) {
   try {
   // Endpoint以杭州为例，其它Region请按实际情况填写。
     String endpoint = UPLOAD_HOST;
     // 阿里云主账号AccessKey拥有所有api的访问权限，风险很高。强烈建议您创建并使用RAM账号进行API访问或日常运维
     String accessKeyId = ACCESS_KEY_ID;
     String accessKeySecret = ACCESS_KEY_SECRET;

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

     // 创建PutObjectRequest对象。
     PutObjectRequest putObjectRequest = new PutObjectRequest(folder, filename, multipartFileToFile(file));

     // 如果需要上传时设置存储类型与访问权限，请参考以下示例代码。
     // ObjectMetadata metadata = new ObjectMetadata();
     // metadata.setHeader(Ossheaders.OSS_STORAGE_CLASS, StorageClass.Standard.toString());
     // metadata.setObjectAcl(CannedAccessControlList.Private);
     // putObjectRequest.setMetadata(metadata);

     // 上传文件。
     ossClient.putObject(putObjectRequest);

     // 关闭OSSClient。
     ossClient.shutdown();
   } catch (Exception e) {
      e.printStackTrace();
    }
  }


  public static String setImageVideoUrlSign(String cover) {
    if (cover.startsWith("/")) cover = cover.substring(1);
      String host = PropertyUtil.getValue("pic_url");
    if (!host.endsWith("/")) host = host + "/";
    if (cover.startsWith("http") && cover.contains(host)) {
      cover = host + cover + "?" + TentunOssUtils.getSigne(cover.replace(host, ""));
    } else if (!cover.startsWith("http")) {
      cover = host + cover + "?" + TentunOssUtils.getSigne(cover);
    }
    return cover;
  }
  
  public static String getSigne(String key) {
    if (!key.startsWith("/")) key = "/" + key;
    String sign = "";
    String secretId = SECRET_ID;
    String secreTKEy = SECRET_KEY;
    COSCredentials cred = new BasicCOSCredentials(secretId, secretKey);
    COSSigner signer = new COSSigner();
    // 设置过期时间为1个小时
    Date expiredTime = new Date(System.currentTimeMillis() + 3600L * 1000L);
    // 要签名的 key, 生成的签名只能用于对应此 key 的下载
//    String key = "/exampleobject";
    sign = signer.buildAuthorizationStr(HttpMethodName.GET, key, cred, expiredTime);
    return sign;
  }

<!-- 阿里云oss -->
<dependency>
  <groupId>com.aliyun.oss</groupId>
   <artifactId>aliyun-sdk-oss</artifactId>
   <version>3.8.0</version>
</dependency>