diff --git a/backendcloud/pom.xml b/backendcloud/pom.xml
index d4b524d..90ea8c6 100644
--- a/backendcloud/pom.xml
+++ b/backendcloud/pom.xml
@@ -1,57 +1,58 @@
 <?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>org.springframework.boot</groupId>
-		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.7.7</version>
-		<relativePath/> <!-- lookup parent from repository -->
-	</parent>
-	<groupId>com.kob</groupId>
-	<artifactId>backendcloud</artifactId>
-	<version>0.0.1-SNAPSHOT</version>
-	<name>backendcloud</name>
-	<description>backendcloud</description>
-	<modules>
-		<module>matchingsystem</module>
-		<module>backend</module>
-	</modules>
-	<packaging>pom</packaging>
+         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>org.springframework.boot</groupId>
+        <artifactId>spring-boot-starter-parent</artifactId>
+        <!-- version 2.7.7 支持 WebSecurityConfigurerAdapter-->
+        <version>2.7.7</version>
+        <relativePath/> <!-- lookup parent from repository -->
+    </parent>
+    <groupId>com.kob</groupId>
+    <artifactId>backendcloud</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <name>backendcloud</name>
+    <description>backendcloud</description>
+    <modules>
+        <module>matchingsystem</module>
+        <module>backend</module>
+    </modules>
+    <packaging>pom</packaging>
 
-	<properties>
-		<java.version>1.8</java.version>
-	</properties>
-	<dependencies>
-		<!-- springCloud 依赖-->
-		<!-- https://mvnrepository.com/artifact/org.springframework.cloud/spring-cloud-dependencies -->
-		<dependency>
-			<groupId>org.springframework.cloud</groupId>
-			<artifactId>spring-cloud-dependencies</artifactId>
-			<version>2022.0.1</version>
-			<type>pom</type>
-			<scope>import</scope>
-		</dependency>
+    <properties>
+        <java.version>1.8</java.version>
+    </properties>
+    <dependencies>
+        <!-- springCloud 依赖-->
+        <!-- https://mvnrepository.com/artifact/org.springframework.cloud/spring-cloud-dependencies -->
+        <dependency>
+            <groupId>org.springframework.cloud</groupId>
+            <artifactId>spring-cloud-dependencies</artifactId>
+            <version>2022.0.1</version>
+            <type>pom</type>
+            <scope>import</scope>
+        </dependency>
 
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
 
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-test</artifactId>
-			<scope>test</scope>
-		</dependency>
-	</dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
 
-	<build>
-		<plugins>
-			<plugin>
-				<groupId>org.springframework.boot</groupId>
-				<artifactId>spring-boot-maven-plugin</artifactId>
-			</plugin>
-		</plugins>
-	</build>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 
 </project>