diff --git a/pom.xml b/pom.xml
index d04fd0f..adbb0e8 100644
--- a/pom.xml
+++ b/pom.xml
@@ -44,10 +44,16 @@
             <version>2.1.4</version>
         </dependency>
 
+        <dependency>
+            <groupId>com.baomidou</groupId>
+            <artifactId>mybatis-plus-boot-starter</artifactId>
+            <version>3.5.2</version>
+        </dependency>
+
         <dependency>
             <groupId>mysql</groupId>
             <artifactId>mysql-connector-java</artifactId>
-            <version>8.0.24</version>
+            <version>5.0.7</version>
         </dependency>
 
     </dependencies>
diff --git a/src/main/java/com/zhiyun/zhiyun03/application/controller/ApplicationController.java b/src/main/java/com/zhiyun/zhiyun03/application/controller/ApplicationController.java
new file mode 100644
index 0000000..a319737
--- /dev/null
+++ b/src/main/java/com/zhiyun/zhiyun03/application/controller/ApplicationController.java
@@ -0,0 +1,37 @@
+package com.zhiyun.zhiyun03.application.controller;
+
+import com.zhiyun.zhiyun03.application.entity.Application;
+import com.zhiyun.zhiyun03.application.service.ApplicationService;
+import com.zhiyun.zhiyun03.application.vo.ApplicationVo;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.context.annotation.ApplicationScope;
+
+import javax.annotation.Resource;
+import java.util.List;
+
+@RestController
+@RequestMapping("application")
+public class ApplicationController {
+    @Resource
+    ApplicationService applicationService;
+
+    @RequestMapping("query")
+    public List<ApplicationVo> queryApplication(){
+        List<ApplicationVo> list = applicationService.queryApplication();
+        return list;
+    }
+
+    @RequestMapping("queryDir")
+    public String queryDir(){
+//        int result = applicationService.addApplication();
+        return "";
+    }
+
+    @RequestMapping("add")
+    public String addApplication(@RequestBody ApplicationVo applicationVo){
+       int result = applicationService.addApplication(applicationVo);
+        return "";
+    }
+}
diff --git a/src/main/java/com/zhiyun/zhiyun03/application/entity/Application.java b/src/main/java/com/zhiyun/zhiyun03/application/entity/Application.java
new file mode 100644
index 0000000..4802f89
--- /dev/null
+++ b/src/main/java/com/zhiyun/zhiyun03/application/entity/Application.java
@@ -0,0 +1,32 @@
+package com.zhiyun.zhiyun03.application.entity;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableField;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.Data;
+
+@Data
+@TableName(value = "application")
+public class Application {
+    private static final long serialVersionUID = 1L;
+
+    @TableId(type = IdType.AUTO)
+    private int id;
+
+    @TableField(value = "app_name")
+    private String appName;
+
+    @TableField(value = "app_biref")
+    private String appBiref;
+
+    @TableField(value = "app_url")
+    private String appUrl;
+
+    @TableField(value = "dir_id")
+    private int dirId;
+
+    @TableField(value = "app_icon")
+    private String appIcon;
+
+}
diff --git a/src/main/java/com/zhiyun/zhiyun03/application/entity/Directory.java b/src/main/java/com/zhiyun/zhiyun03/application/entity/Directory.java
new file mode 100644
index 0000000..a175daa
--- /dev/null
+++ b/src/main/java/com/zhiyun/zhiyun03/application/entity/Directory.java
@@ -0,0 +1,17 @@
+package com.zhiyun.zhiyun03.application.entity;
+
+import com.baomidou.mybatisplus.annotation.TableField;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.Data;
+
+@TableName(value = "directory")
+@Data
+public class Directory {
+
+    @TableId
+    private int id;
+
+    @TableField(value = "dir_name")
+    private String dirName;
+}
diff --git a/src/main/java/com/zhiyun/zhiyun03/application/mapper/ApplicationMapper.java b/src/main/java/com/zhiyun/zhiyun03/application/mapper/ApplicationMapper.java
new file mode 100644
index 0000000..3408c5c
--- /dev/null
+++ b/src/main/java/com/zhiyun/zhiyun03/application/mapper/ApplicationMapper.java
@@ -0,0 +1,9 @@
+package com.zhiyun.zhiyun03.application.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.zhiyun.zhiyun03.application.entity.Application;
+import org.apache.ibatis.annotations.Mapper;
+
+@Mapper
+public interface ApplicationMapper extends BaseMapper<Application> {
+}
diff --git a/src/main/java/com/zhiyun/zhiyun03/application/mapper/DirectoryMapper.java b/src/main/java/com/zhiyun/zhiyun03/application/mapper/DirectoryMapper.java
new file mode 100644
index 0000000..2de95b0
--- /dev/null
+++ b/src/main/java/com/zhiyun/zhiyun03/application/mapper/DirectoryMapper.java
@@ -0,0 +1,9 @@
+package com.zhiyun.zhiyun03.application.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.zhiyun.zhiyun03.application.entity.Directory;
+import org.apache.ibatis.annotations.Mapper;
+
+@Mapper
+public interface DirectoryMapper extends BaseMapper<Directory> {
+}
diff --git a/src/main/java/com/zhiyun/zhiyun03/application/service/ApplicationService.java b/src/main/java/com/zhiyun/zhiyun03/application/service/ApplicationService.java
new file mode 100644
index 0000000..8f537d9
--- /dev/null
+++ b/src/main/java/com/zhiyun/zhiyun03/application/service/ApplicationService.java
@@ -0,0 +1,13 @@
+package com.zhiyun.zhiyun03.application.service;
+
+import com.baomidou.mybatisplus.extension.service.IService;
+import com.zhiyun.zhiyun03.application.entity.Application;
+import com.zhiyun.zhiyun03.application.vo.ApplicationVo;
+
+import java.util.List;
+
+public interface ApplicationService extends IService<Application> {
+    List<ApplicationVo> queryApplication();
+
+    int addApplication(ApplicationVo applicationVo);
+}
diff --git a/src/main/java/com/zhiyun/zhiyun03/application/service/impl/ApplicationServiceImpl.java b/src/main/java/com/zhiyun/zhiyun03/application/service/impl/ApplicationServiceImpl.java
new file mode 100644
index 0000000..80ccf7b
--- /dev/null
+++ b/src/main/java/com/zhiyun/zhiyun03/application/service/impl/ApplicationServiceImpl.java
@@ -0,0 +1,61 @@
+package com.zhiyun.zhiyun03.application.service.impl;
+
+import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.zhiyun.zhiyun03.application.entity.Application;
+import com.zhiyun.zhiyun03.application.entity.Directory;
+import com.zhiyun.zhiyun03.application.mapper.ApplicationMapper;
+import com.zhiyun.zhiyun03.application.mapper.DirectoryMapper;
+import com.zhiyun.zhiyun03.application.service.ApplicationService;
+import com.zhiyun.zhiyun03.application.util.ConvertUtil;
+import com.zhiyun.zhiyun03.application.vo.ApplicationVo;
+import org.springframework.stereotype.Service;
+
+import javax.annotation.Resource;
+import java.util.ArrayList;
+import java.util.List;
+
+@Service
+public class ApplicationServiceImpl extends ServiceImpl<ApplicationMapper, Application> implements ApplicationService {
+
+    @Resource
+    ApplicationMapper applicationMapper;
+
+    @Resource
+    DirectoryMapper directoryMapper;
+
+
+    /**
+     * 应用中心查询
+     */
+    @Override
+    public List<ApplicationVo> queryApplication() {
+        QueryWrapper<Application> qwa=new QueryWrapper<>();
+        List<Application> applications = applicationMapper.selectList(qwa);
+        QueryWrapper<Directory> qwd=new QueryWrapper<>();
+        List<Directory> directories = directoryMapper.selectList(qwd);
+        ConvertUtil convertUtil=new ConvertUtil();
+        List<ApplicationVo> applicationVos = convertUtil.entityToVoList(applications, ApplicationVo.class);
+
+        for (int i = 0; i < applications.size(); i++) {
+            for (int j = 0; j <directories.size() ; j++) {
+                if(applications.get(i).getDirId()==directories.get(i).getId()){
+                    applicationVos.get(i).setDirName(directories.get(i).getDirName());
+                }
+            }
+        }
+        return applicationVos;
+    }
+
+
+
+
+    /**
+     * 应用中心新增
+     */
+    @Override
+    public int addApplication(ApplicationVo applicationVo) {
+
+        return 0;
+    }
+}
diff --git a/src/main/java/com/zhiyun/zhiyun03/application/util/ConvertUtil.java b/src/main/java/com/zhiyun/zhiyun03/application/util/ConvertUtil.java
new file mode 100644
index 0000000..cf6a417
--- /dev/null
+++ b/src/main/java/com/zhiyun/zhiyun03/application/util/ConvertUtil.java
@@ -0,0 +1,115 @@
+package com.zhiyun.zhiyun03.application.util;
+ 
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.BeanUtils;
+ 
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+ 
+ 
+/**
+ * @Author tanzheng
+ * @Description 类型转换: Entity - Vo互转
+ * @Date 2023/8/9
+ * @Param [params]
+ **/
+public class ConvertUtil {
+    public static final Logger logger = LoggerFactory.getLogger(ConvertUtil.class);
+
+
+    /**
+     * Entity转Vo
+     * @param source
+     * @param target
+     * @return
+     * @param <T>
+     */
+    public  <T> T entityToVo(Object source, Class<T> target) {
+        if (source == null) {
+            return null;
+        }
+        T targetObject = null;
+        try {
+            targetObject = target.newInstance();
+            BeanUtils.copyProperties(source, targetObject);
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        return targetObject;
+    }
+ 
+    /**
+     * Vo转Entity
+     * @param source
+     * @param target
+     * @return
+     * @param <T>
+     */
+    public  <T> T VoToEntity(Object source, Class<T> target) {
+        if (source == null) {
+            return null;
+        }
+        T targetObject = null;
+        try {
+            targetObject = target.newInstance();
+            BeanUtils.copyProperties(source, targetObject);
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        return targetObject;
+    }
+ 
+    /**
+     * 列表实体转VO
+     * @param sourceList
+     * @param target
+     * @return
+     * @param <T>
+     */
+    public  <T> List<T> entityToVoList(Collection<?> sourceList, Class<T> target) {
+        if (sourceList == null) {
+            return null;
+        }
+        List<T> targetList = new ArrayList<>(sourceList.size());
+ 
+        try {
+            for (Object source : sourceList) {
+                T targetObject = target.newInstance();
+                BeanUtils.copyProperties(source, targetObject);
+                targetList.add(targetObject);
+            }
+        } catch (Exception e) {
+            logger.error("convert error ", e);
+        }
+        return targetList;
+    }
+ 
+    /**
+     * VO转列表实体
+     * @param sourceList
+     * @param target
+     * @return
+     * @param <T>
+     */
+    public  <T> List<T> VoListToEntity(Collection<?> sourceList, Class<T> target) {
+        if (sourceList == null) {
+            return null;
+        }
+        List<T> targetList = new ArrayList<>(sourceList.size());
+ 
+        try {
+            for (Object source : sourceList) {
+                T targetObject = target.newInstance();
+                BeanUtils.copyProperties(source, targetObject);
+                targetList.add(targetObject);
+            }
+        } catch (Exception e) {
+            logger.error("convert error ", e);
+        }
+        return targetList;
+    }
+ 
+ 
+}
\ No newline at end of file
diff --git a/src/main/java/com/zhiyun/zhiyun03/application/vo/ApplicationVo.java b/src/main/java/com/zhiyun/zhiyun03/application/vo/ApplicationVo.java
new file mode 100644
index 0000000..fa2be24
--- /dev/null
+++ b/src/main/java/com/zhiyun/zhiyun03/application/vo/ApplicationVo.java
@@ -0,0 +1,21 @@
+package com.zhiyun.zhiyun03.application.vo;
+
+import com.baomidou.mybatisplus.annotation.TableField;
+import com.baomidou.mybatisplus.annotation.TableId;
+import lombok.Data;
+
+@Data
+public class ApplicationVo {
+    @TableId
+    private int id;
+
+    private String appName;
+
+    private String appBiref;
+
+    private String appUrl;
+
+    private String dirName;
+
+    private String appIcon;
+}
diff --git a/src/main/resources/application.yml b/src/main/resources/application.yml
index 27bac68..0653c9e 100644
--- a/src/main/resources/application.yml
+++ b/src/main/resources/application.yml
@@ -12,12 +12,9 @@ mybatis:
 spring:
   datasource:
     type: com.alibaba.druid.pool.DruidDataSource
-    driverClassName: com.mysql.cj.jdbc.Driver
+    driverClassName: com.mysql.jdbc.Driver
     druid:
       url: jdbc:mysql://localhost:3306/zhiyun?useUnicode=true&characterEncoding=utf8&useSSL=false&serverTimezone=Asia/Shanghai
       username: root
-      password: root
+      password: 123456
 
-
-swagger:
-  enabled: true
\ No newline at end of file
diff --git a/src/main/resources/mapper/ApplicationMapper.xml b/src/main/resources/mapper/ApplicationMapper.xml
new file mode 100644
index 0000000..36235d8
--- /dev/null
+++ b/src/main/resources/mapper/ApplicationMapper.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="com.zhiyun.zhiyun03.application.mapper.ApplicationMapper">
+
+</mapper>
\ No newline at end of file