初始化 pay 模块

pay/pay-service-impl/src/main/java/cn/iocoder/mall/pay/config/DatabaseConfiguration.java

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+package cn.iocoder.mall.pay.config;
+
+import org.mybatis.spring.annotation.MapperScan;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.transaction.annotation.EnableTransactionManagement;
+
+@Configuration
+@MapperScan("cn.iocoder.mall.pay.dao") // 扫描对应的 Mapper 接口
+@EnableTransactionManagement(proxyTargetClass = true) // 启动事务管理。为什么使用 proxyTargetClass 参数，参见 https://blog.csdn.net/huang_550/article/details/76492600
+public class DatabaseConfiguration {
+
+    // 数据源，使用 HikariCP
+
+}

pay/pay-service-impl/src/main/java/cn/iocoder/mall/pay/config/ServiceExceptionConfiguration.java

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+package cn.iocoder.mall.pay.config;
+
+import cn.iocoder.common.framework.util.ServiceExceptionUtil;
+import cn.iocoder.mall.admin.api.constant.AdminErrorCodeEnum;
+import org.springframework.boot.context.event.ApplicationReadyEvent;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.event.EventListener;
+
+@Configuration
+public class ServiceExceptionConfiguration {
+
+    @EventListener(ApplicationReadyEvent.class) // 可参考 https://www.cnblogs.com/ssslinppp/p/7607509.html
+    public void initMessages() {
+//        从 service_exception_message.properties 加载错误码的方案
+//        Properties properties;
+//        try {
+//            properties = PropertiesLoaderUtils.loadAllProperties("classpath:service_exception_message.properties");
+//        } catch (IOException e) {
+//            throw new RuntimeException(e);
+//        }
+        for (AdminErrorCodeEnum item : AdminErrorCodeEnum.values()) {
+            ServiceExceptionUtil.put(item.getCode(), item.getMessage());
+        }
+    }
+
+}

pay/pay-service-impl/src/main/java/cn/iocoder/mall/pay/package-info.java

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+package cn.iocoder.mall.pay;

pay/pay-service-impl/src/main/java/cn/iocoder/mall/pay/service/PayServiceImpl.java

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+package cn.iocoder.mall.pay.service;
+
+import cn.iocoder.mall.pay.api.PayService;
+import org.springframework.stereotype.Service;
+
+@Service
+@com.alibaba.dubbo.config.annotation.Service(validation = "true")
+public class PayServiceImpl implements PayService {
+}

pay/pay-service-impl/src/main/resources/config/application.properties

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+##################### 业务模块 #####################

pay/pay-service-impl/src/main/resources/config/application.yaml

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+spring:
+  # datasource
+  datasource:
+    url: jdbc:mysql://180.167.213.26:13306/mall_pay?useSSL=false&useUnicode=true&characterEncoding=UTF-8
+    driver-class-name: com.mysql.jdbc.Driver
+    username: root
+    password: ${MALL_MYSQL_PASSWORD}
+
+# mybatis
+mybatis:
+  config-location: classpath:mybatis-config.xml
+  mapper-locations: classpath:mapper/*.xml
+  type-aliases-package: cn.iocoder.mall.pay.dataobject
+
+# dubbo
+dubbo:
+  application:
+    name: pay-service
+  registry:
+    address: zookeeper://127.0.0.1:2181
+  protocol:
+    port: -1
+    name: dubbo
+  scan:
+    base-packages: cn.iocoder.mall.pay.service

pay/pay-service-impl/src/main/resources/mybatis-config.xml

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+<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd">
+<configuration>
+
+    <settings>
+        <!-- 使用驼峰命名法转换字段。 -->
+        <setting name="mapUnderscoreToCamelCase" value="true"/>
+    </settings>
+
+    <typeAliases>
+        <typeAlias alias="Integer" type="java.lang.Integer"/>
+        <typeAlias alias="Long" type="java.lang.Long"/>
+        <typeAlias alias="HashMap" type="java.util.HashMap"/>
+        <typeAlias alias="LinkedHashMap" type="java.util.LinkedHashMap"/>
+        <typeAlias alias="ArrayList" type="java.util.ArrayList"/>
+        <typeAlias alias="LinkedList" type="java.util.LinkedList"/>
+    </typeAliases>
+
+</configuration>