OSS 前端页面发送 deleteObject 请求 返回403错误 Anonymous user has no right to access this bucket

前端发送删除请求

          var formData = new FormData();
            this.signature.key = 'image/band_image/' + '1508224172918-测试.jpg';
            formData.append('policy',this.signature.policy)
            formData.append('OSSAccessKeyId',this.signature.OSSAccessKeyId)
            formData.append('success_action_status',this.signature.success_action_status)
            formData.append('Signature',this.signature.Signature)
            formData.append('key',this.signature.key)

            let file = 'image/band_image/' + '1508224172918-测试.jpg'
            formData.append('file',file)

            let xhr = new XMLHttpRequest();
            xhr.open('DELETE', 'http://qz-iplay.oss-cn-shenzhen.aliyuncs.com', true);
            xhr.onload = function() {
                if (xhr.status === 200) {
                    console.log('oss删除成功')                  
                }else {
                    console.error('oss删除失败')
                }
            };
            xhr.send(formData);

返回错误提示
AccessDenied

Anonymous user has no right to access this bucket.

请问是哪里的问题 该怎么设置?