WechatConstants.java
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package com.diligrp.cashier.pipeline.util;
/**
* 微信支付平台常量列表
*/
public class WechatConstants {
// 签名算法 - 请求时签名使用
public static final String SIGN_ALGORITHM = "SHA256WithRSA";
// 密钥算法 - 请求时签名使用
public static final String RSA_ALGORITHM = "RSA";
// 加密算法 - 证书和回调报文解密使用
public static final String AES_ALGORITHM = "AES";
// 加密算法 - 证书和回调报文解密使用
public static final String AESGCM_ALGORITHM = "AES/GCM/NoPadding";
// 密钥长度 - 证书和回调报文解密使用
public static final int KEY_LENGTH_BYTE = 32;
public static final int TAG_LENGTH_BIT = 128;
// HTTP常量
public static final String HTTP_GET = "GET";
public static final String HTTP_POST = "POST";
// 微信平台HTTP请求常量
public static final String HEADER_USER_AGENT = "User-Agent";
public static final String USER_AGENT = "DiliPay-HttpClient/2.4.0 Java/11.0.6";
public static final String HEADER_AUTHORIZATION = "Authorization";
public static final String HEADER_ACCEPT = "Accept";
public static final String ACCEPT_JSON = "application/json";
// 微信平台HTTP响应常量
public static final String HEADER_TIMESTAMP = "Wechatpay-Timestamp";
public static final String HEADER_NONCE = "Wechatpay-Nonce";
public static final String HEADER_SERIAL_NO = "Wechatpay-Serial";
public static final String HEADER_SIGNATURE = "Wechatpay-Signature";
public static String RFC3339_FORMAT = "yyyy-MM-dd'T'HH:mm:ss+08:00";
public static String NOTIFY_EVENT_TYPE = "TRANSACTION.SUCCESS";
public static String REFUND_EVENT_TYPE = "REFUND.SUCCESS";
// 支付状态常量列表
public static final String STATE_SUCCESS = "SUCCESS"; // 支付成功
public static final String STATE_REFUND = "REFUND"; // 转入退款
public static final String STATE_NOTPAY = "NOTPAY"; // 未支付
public static final String STATE_CLOSED = "CLOSED"; // 已关闭
public static final String STATE_REVOKED = "REVOKED"; // 已撤销（付款码支付）
public static final String STATE_USERPAYING = "USERPAYING"; // 用户支付中（付款码支付）
public static final String STATE_PAYERROR = "PAYERROR"; // 支付失败(其他原因，如银行返回失败)
// 退款状态常量列表
public static final String REFUND_SUCCESS = "SUCCESS"; // 退款成功
public static final String REFUND_CLOSED = "CLOSED"; // 退款关闭
public static final String REFUND_PROCESSING = "PROCESSING"; // 退款处理中
public static final String REFUND_ABNORMAL = "ABNORMAL"; // 退款异常
// 预支付订单有效期持续时间，超过这个时间将不能支付
public static final int PAY_DURATION_MINS = 8;
}