去掉没用配置，修改配置文件默认值

src/main/java/com/wendao/config/PayProConfig.java

@@ -45,9 +45,6 @@ public class PayProConfig implements WebMvcConfigurer {
      */
     private Integer qrCodeNum;
 
-    /** 项目下载地址 */
-    private String downloadUrl;
-
     /**
      * 阿里的用户id
      * */

src/main/java/com/wendao/entity/Order.java

@@ -130,7 +130,4 @@ public class Order implements Serializable{
     @JsonIgnore
     private String statistic;
 
-    @TableField(exist = false)
-    private String downloadUrl;
-
 }

src/main/java/com/wendao/service/impl/OrderServiceImpl.java

@@ -222,7 +222,6 @@ public class OrderServiceImpl implements OrderService {
         if (pay.getProductId() != null) {
             Product product = productMapper.selectById(pay.getProductId());
             if (product.getType().equals("CODE")) {
-                pay.setDownloadUrl(payProConfig.getDownloadUrl());
                 emailUtils.sendTemplateMail(payProConfig.getEmail().getSender(), pay.getEmail(), "【Pay个人收款支付系统】支付成功通知（附下载链接）",
                         "order-success", pay);
                 pay.setState(OrderStatesEnum.SUCCESS_PAY.getState());

src/main/resources/application.yml

@@ -42,8 +42,8 @@ spring:
     testWhileIdle: true
     timeBetweenEvictionRunsMillis: 60000
     type: com.alibaba.druid.pool.DruidDataSource
-    url: jdbc:mysql://xx.xx.xx.xx:8001/paypro?useSSL=false&characterEncoding=utf-8
-    username: xxx
+    url: jdbc:mysql://127.0.0.1:8001/paypro?useSSL=false&characterEncoding=utf-8
+    username: root
     validationQuery: SELECT 1 FROM DUAL
   redis:
     database: 1
@@ -88,5 +88,4 @@ paypro:
   token:
     value: 123
     expire: 14
-  qrCodeNum: 2
-  downloadUrl: https://github.com/codewendao/PayPro
+  qrCodeNum: 2