基于Spring的整合微信支付，支付宝支付，银联支付（个人），银联支付（企业）。

码云地址：https://gitee.com/liujun0128/basis-pay.git

• 基于Spring，使用了Spring的注解@Component@Service
• 使用了@Slf4j注解生成日志。

1. Spring boot 方式

   @ComponentScan({"com.moyun.shop"}) // 把包名加入到启动类
   @SpringBootApplication
   public class BaseApplication {
       public static void main(String[] args) {
           SpringApplication.run(BaseApplication.class, args);
       }
   }

   Spring 方式

   <!-- 使用annotation 自动注册bean -->
   <context:component-scan base-package="com.moyun.com">

2. 修改resource下面的wx-pay.properties文件

   wx.pay.appId=appid
   wx.pay.mchId=商户号
   wx.pay.mchKey=商户秘钥
   wx.pay.certPath=双向证书路径
   wx.pay.ip=用户的客户端IP

1. 微信支付Demo

   package com.moyun.shop.pay;
   
   import com.moyun.shop.pay.builder.PayParamBuilder;
   import com.moyun.shop.pay.domain.enums.PayType;
   import com.moyun.shop.pay.domain.param.PayParam;
   import com.moyun.shop.pay.domain.result.PayResult;
   import com.moyun.shop.pay.factory.*;
   import com.moyun.shop.pay.service.*;
   import com.moyun.shop.pay.util.PayUtil;
   import com.moyun.shop.pay.wx.domain.enums.TradeType;
   import com.moyun.shop.pay.wx.domain.param.*;
   
   import javax.annotation.Resource;
   
   /**
    * @Description 微信支付测试
    * @Author LiuJun
    * @Date 2020/5/25 12:53 下午
    */
   public class WxPayTest {
   
       @Resource
       private UnifiedOrderFactory unifiedOrderFactory;
   
       @Resource
       private OrderQueryFactory orderQueryFactory;
   
       @Resource
       private OrderCloseFactory orderCloseFactory;
   
       @Resource
       private RefundFactory refundFactory;
   
       @Resource
       private RefundQueryFactory refundQueryFactory;
   
       /**
        * 统一下单
        */
       public PayResult unifiedOrder() {
           // 微信下单请求参数
           UnifiedOrderParam param = new UnifiedOrderParam();
           param.setBody(PayUtil.getRandomString(24));
           param.setTradeNo(PayUtil.getRandomString(12));
           param.setTotalFee(1);
           param.setNotifyUrl("orderNotifyUrl");
           param.setTradeType(TradeType.JSAPI.getType());
           param.setOpenId("");
           // payType设置支付类型，构建请求参数
           PayParam<UnifiedOrderParam> payParam =
                   new PayParamBuilder<UnifiedOrderParam>().payType(PayType.WX_PAY).param(param).build();
           // 获取统一下单实例
           UnifiedOrderService service = unifiedOrderFactory.getService(payParam);
           // 获取执行结果
           PayResult result = service.order(payParam);
           return result;
       }
   
       /**
        * 订单查询
        */
       public PayResult orderQuery(String orderNo) {
           // 微信订单查询请求参数
           OrderQueryParam param = new OrderQueryParam();
           param.setTradeNo(orderNo);
           // payType设置支付类型，构建请求参数
           PayParam<OrderQueryParam> payParam =
                   new PayParamBuilder<OrderQueryParam>().payType(PayType.WX_PAY).param(param).build();
           // 获取订单查询实例
           OrderQueryService service = orderQueryFactory.getService(payParam);
           // 获取执行结果
           PayResult result = service.query(payParam);
           return result;
       }
   
       /**
        * 订单关闭
        */
       public PayResult orderClose(String orderNo) {
           // 微信订单关闭请求参数
           OrderCloseParam param = new OrderCloseParam();
           param.setTradeNo(orderNo);
           // payType设置支付类型，构建请求参数
           PayParam<OrderCloseParam> payParam =
                   new PayParamBuilder<OrderCloseParam>().payType(PayType.WX_PAY).param(param).build();
           // 获取订单关闭实例
           OrderCloseService service = orderCloseFactory.getService(payParam);
           // 获取执行结果
           PayResult result = service.close(payParam);
           return result;
       }
   
       /**
        * 退款
        */
       public PayResult refund(String orderNo) {
           // 微信退款请求参数
           RefundParam param = new RefundParam();
           param.setTradeNo(orderNo);
           param.setRefundNo(PayUtil.getRandomString(12));
           param.setRefundFee(1);
           param.setTotalFee(1);
           param.setNotifyUrl("refundNotifyUrl");
           // payType设置支付类型，构建请求参数
           PayParam<RefundParam> payParam =
                   new PayParamBuilder<RefundParam>().payType(PayType.WX_PAY).param(param).build();
           // 获取退款实例
           RefundService refundService = refundFactory.getService(payParam);
           // 获取执行结果
           PayResult result = refundService.refund(payParam);
           return result;
       }
   
       /**
        * 退款查询
        */
       public PayResult refundQuery(String orderNo) {
           // 微信退款查询请求参数
           RefundQueryParam param = new RefundQueryParam();
           param.setTradeNo(orderNo);
           // payType设置支付类型，构建请求参数
           PayParam<RefundQueryParam> payParam =
                   new PayParamBuilder<RefundQueryParam>().payType(PayType.WX_PAY).param(param).build();
           // 获取退款查询实例
           RefundQueryService service = refundQueryFactory.getService(payParam);
           // 获取执行结果
           PayResult result = service.query(payParam);
           return result;
       }
   }