重命名默认数据库名为：csa，重命名组名为com.jlt，重命名包名为com.jlt.csa

SpringBoot启动类，使用@SpringBootApplication的scanBasePackages元素替代@ComponentScan注解。

private-farm/pom.xml

@@ -9,7 +9,7 @@
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
-    <groupId>com.jlt.farming</groupId>
+    <groupId>com.jlt</groupId>
     <artifactId>private-farm</artifactId>
     <version>1.0.0</version>
     <description>私家农场(社区支持农业)管理系统</description>

private-farm/src/main/java/com/jlt/crm/controller/VisitorController.java

@@ -1,10 +1,10 @@
-package com.jlt.farming.crm.controller;
+package com.jlt.crm.controller;
 
 import java.util.List;
 import javax.servlet.http.HttpServletResponse;
 
-import com.jlt.farming.crm.domain.Visitor;
-import com.jlt.farming.crm.service.IVisitorService;
+import com.jlt.crm.domain.Visitor;
+import com.jlt.crm.service.IVisitorService;
 import org.springframework.security.access.prepost.PreAuthorize;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.web.bind.annotation.GetMapping;

private-farm/src/main/java/com/jlt/crm/domain/Visitor.java

@@ -1,4 +1,4 @@
-package com.jlt.farming.crm.domain;
+package com.jlt.crm.domain;
 
 import java.util.Date;
 import com.fasterxml.jackson.annotation.JsonFormat;

private-farm/src/main/java/com/jlt/crm/mapper/VisitorMapper.java

@@ -1,7 +1,7 @@
-package com.jlt.farming.crm.mapper;
+package com.jlt.crm.mapper;
 
 import java.util.List;
-import com.jlt.farming.crm.domain.Visitor;
+import com.jlt.crm.domain.Visitor;
 
 /**
  * 访客信息Mapper接口

private-farm/src/main/java/com/jlt/crm/service/IVisitorService.java

@@ -1,7 +1,8 @@
-package com.jlt.farming.crm.service;
+package com.jlt.crm.service;
 
 import java.util.List;
-import com.jlt.farming.crm.domain.Visitor;
+
+import com.jlt.crm.domain.Visitor;
 
 /**
  * 访客信息Service接口

private-farm/src/main/java/com/jlt/crm/service/impl/VisitorServiceImpl.java

@@ -1,10 +1,9 @@
-package com.jlt.farming.crm.service.impl;
+package com.jlt.crm.service.impl;
 
 import java.util.List;
 
-import com.jlt.farming.crm.domain.Visitor;
-import com.jlt.farming.crm.mapper.VisitorMapper;
-import com.jlt.farming.crm.service.IVisitorService;
+import com.jlt.crm.domain.Visitor;
+import com.jlt.crm.service.IVisitorService;
 import com.ruoyi.common.utils.DateUtils;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
@@ -19,7 +18,7 @@ import org.springframework.stereotype.Service;
 public class VisitorServiceImpl implements IVisitorService
 {
     @Autowired
-    private VisitorMapper VisitorMapper;
+    private com.jlt.crm.mapper.VisitorMapper VisitorMapper;
 
     /**
      * 查询访客信息

private-farm/src/main/resources/mapper/crm/VisitorMapper.xml

@@ -2,7 +2,7 @@
 <!DOCTYPE mapper
 PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
 "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
-<mapper namespace="com.jlt.farming.crm.mapper.VisitorMapper">
+<mapper namespace="com.jlt.crm.mapper.VisitorMapper">
     
     <resultMap type="Visitor" id="VisitorResult">
         <result property="visitorId"    column="visitor_id"    />