add oss upload file

Helius

2020-05-29 23c98be26dc3acf72236a5c97b374b00b6e3043f

 src/main/java/com/xcong/excoin/common/contants/AppContants.java

@@ -64,4 +64,9 @@
     */
    public static final String VERIFY_CODE_PREFIX = "CODE_SMS_";

    /**
     * 图片后缀
     */
    public static final String UPLOAD_IMAGE_SUFFIX = ".jpg";

}