diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..7a32cc6
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,8 @@
+target/
+*.class
+*.jar
+*.war
+*.iml
+.idea/
+.vscode/
+.DS_Store
diff --git a/backend/mci-shared/pom.xml b/backend/mci-shared/pom.xml
new file mode 100644
index 0000000..fee4e35
--- /dev/null
+++ b/backend/mci-shared/pom.xml
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>com.sino</groupId>
+        <artifactId>sino-mci-parent</artifactId>
+        <version>0.0.1-SNAPSHOT</version>
+    </parent>
+    <artifactId>mci-shared</artifactId>
+    <name>mci-shared</name>
+
+    <dependencies>
+        <dependency>
+            <groupId>com.baomidou</groupId>
+            <artifactId>mybatis-plus-boot-starter</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+            <optional>true</optional>
+        </dependency>
+    </dependencies>
+</project>
diff --git a/backend/mci-shared/src/main/java/com/sino/mci/shared/entity/BaseEntity.java b/backend/mci-shared/src/main/java/com/sino/mci/shared/entity/BaseEntity.java
new file mode 100644
index 0000000..f4b89ec
--- /dev/null
+++ b/backend/mci-shared/src/main/java/com/sino/mci/shared/entity/BaseEntity.java
@@ -0,0 +1,18 @@
+package com.sino.mci.shared.entity;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableId;
+import lombok.Data;
+
+import java.time.LocalDateTime;
+
+@Data
+public abstract class BaseEntity {
+
+    @TableId(type = IdType.AUTO)
+    private Long id;
+
+    private LocalDateTime createTime;
+
+    private LocalDateTime updateTime;
+}
diff --git a/backend/mci-shared/src/main/java/com/sino/mci/shared/web/ApiResponse.java b/backend/mci-shared/src/main/java/com/sino/mci/shared/web/ApiResponse.java
new file mode 100644
index 0000000..84fa400
--- /dev/null
+++ b/backend/mci-shared/src/main/java/com/sino/mci/shared/web/ApiResponse.java
@@ -0,0 +1,27 @@
+package com.sino.mci.shared.web;
+
+import lombok.Data;
+
+@Data
+public class ApiResponse<T> {
+
+    private int code;
+    private String message;
+    private T data;
+    private String requestId;
+
+    public static <T> ApiResponse<T> ok(T data) {
+        ApiResponse<T> response = new ApiResponse<>();
+        response.setCode(0);
+        response.setMessage("ok");
+        response.setData(data);
+        return response;
+    }
+
+    public static <T> ApiResponse<T> fail(int code, String message) {
+        ApiResponse<T> response = new ApiResponse<>();
+        response.setCode(code);
+        response.setMessage(message);
+        return response;
+    }
+}
diff --git a/backend/pom.xml b/backend/pom.xml
index 267aa4b..587a442 100644
--- a/backend/pom.xml
+++ b/backend/pom.xml
@@ -19,21 +19,15 @@
     <description>Message &amp; Customer Interaction Platform</description>
 
     <properties>
-        <java.version>21</java.version>
-        <maven.compiler.source>21</maven.compiler.source>
-        <maven.compiler.target>21</maven.compiler.target>
+        <java.version>17</java.version>
+        <maven.compiler.source>17</maven.compiler.source>
+        <maven.compiler.target>17</maven.compiler.target>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <mybatis-plus.version>3.5.7</mybatis-plus.version>
     </properties>
 
     <modules>
         <module>mci-shared</module>
-        <module>mci-server</module>
-        <module>mci-channel-common</module>
-        <module>mci-channel-wecom</module>
-        <module>mci-channel-dingtalk</module>
-        <module>mci-channel-feishu</module>
-        <module>mci-channel-ivr</module>
     </modules>
 
     <dependencyManagement>