content: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you under the Apache License, Version 2.0 (the
   * "License"); you may not use this file except in compliance
   * with the License.  You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing,
   * software distributed under the License is distributed on an
   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
   * KIND, either express or implied.  See the License for the
   * specific language governing permissions and limitations
   * under the License.
   */
  package com.aliyun.api.gateway.demo.constant;
  
  /**
   * 通用常量
   */
  public class Constants {
      //签名算法HmacSha256
      public static final String HMAC_SHA256 = "HmacSHA256";
      //编码UTF-8
      public static final String ENCODING = "UTF-8";
      //UserAgent
      public static final String USER_AGENT = "demo/aliyun/java";
      //换行符
      public static final String LF = "\n";
      //串联符
      public static final String SPE1 = ",";
      //示意符
      public static final String SPE2 = ":";
      //连接符
      public static final String SPE3 = "&";
      //赋值符
      public static final String SPE4 = "=";
      //问号符
      public static final String SPE5 = "?";
      //默认请求超时时间,单位毫秒
      public static final int DEFAULT_TIMEOUT = 1000;
      //参与签名的系统Header前缀,只有指定前缀的Header才会参与到签名中
      public static final String CA_HEADER_TO_SIGN_PREFIX_SYSTEM = "X-Ca-";
  }
  