diff --git a/project/.vscode/settings.json b/project/.vscode/settings.json
index 7b016a8..9722018 100644
--- a/project/.vscode/settings.json
+++ b/project/.vscode/settings.json
@@ -1,3 +1,9 @@
 {
-    "java.compile.nullAnalysis.mode": "automatic"
+    "java.compile.nullAnalysis.mode": "automatic",
+    "chat.tools.terminal.autoApprove": {
+        "/^& \"C:\\\\Users\\\\admin\\\\\\.maven\\\\maven-3\\.9\\.15\\\\bin\\\\mvn\\.cmd\" -version$/": {
+            "approve": true,
+            "matchCommandLine": true
+        }
+    }
 }
\ No newline at end of file
diff --git a/project/pom.xml b/project/pom.xml
index 30807a6..5701585 100644
--- a/project/pom.xml
+++ b/project/pom.xml
@@ -7,7 +7,7 @@
     <parent>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-parent</artifactId>
-        <version>2.7.12</version>
+        <version>3.5.0</version>
         <relativePath/> <!-- lookup parent from repository -->
     </parent>
 
@@ -16,7 +16,7 @@
     <version>1.0-SNAPSHOT</version>
 
     <properties>
-        <java.version>11</java.version>
+        <java.version>25</java.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     </properties>
 
@@ -93,6 +93,27 @@
                 <groupId>org.springframework.boot</groupId>
                 <artifactId>spring-boot-maven-plugin</artifactId>
             </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.11.0</version>
+                <configuration>
+                    <release>${java.version}</release>
+                </configuration>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-surefire-plugin</artifactId>
+                <version>3.1.2</version>
+            </plugin>
+            <plugin>
+                <groupId>org.codehaus.mojo</groupId>
+                <artifactId>exec-maven-plugin</artifactId>
+                <version>3.1.0</version>
+                <configuration>
+                    <mainClass>com.movieratings.Main</mainClass>
+                </configuration>
+            </plugin>
         </plugins>
     </build>
 </project>
diff --git a/project/src/main/java/com/movieratings/model/Movie.java b/project/src/main/java/com/movieratings/model/Movie.java
index 1f965d6..df46ba9 100644
--- a/project/src/main/java/com/movieratings/model/Movie.java
+++ b/project/src/main/java/com/movieratings/model/Movie.java
@@ -1,6 +1,6 @@
 package com.movieratings.model;
 
-import javax.persistence.*;
+import jakarta.persistence.*;
 import java.io.Serializable;
 
 /**
diff --git a/project/target/classes/com/movieratings/DataInitializer.class b/project/target/classes/com/movieratings/DataInitializer.class
index 0447824..6311456 100644
Binary files a/project/target/classes/com/movieratings/DataInitializer.class and b/project/target/classes/com/movieratings/DataInitializer.class differ
diff --git a/project/target/classes/com/movieratings/Main.class b/project/target/classes/com/movieratings/Main.class
index 41c75d5..d3da6b6 100644
Binary files a/project/target/classes/com/movieratings/Main.class and b/project/target/classes/com/movieratings/Main.class differ
diff --git a/project/target/classes/com/movieratings/MovieRatingsApplication.class b/project/target/classes/com/movieratings/MovieRatingsApplication.class
index 9c1c8a5..6888f5f 100644
Binary files a/project/target/classes/com/movieratings/MovieRatingsApplication.class and b/project/target/classes/com/movieratings/MovieRatingsApplication.class differ
diff --git a/project/target/classes/com/movieratings/analysis/DataAnalyzer$CorrelationResult.class b/project/target/classes/com/movieratings/analysis/DataAnalyzer$CorrelationResult.class
index 0f94889..b56c853 100644
Binary files a/project/target/classes/com/movieratings/analysis/DataAnalyzer$CorrelationResult.class and b/project/target/classes/com/movieratings/analysis/DataAnalyzer$CorrelationResult.class differ
diff --git a/project/target/classes/com/movieratings/analysis/DataAnalyzer$DirectorStats.class b/project/target/classes/com/movieratings/analysis/DataAnalyzer$DirectorStats.class
index 3ec6f86..4864c0e 100644
Binary files a/project/target/classes/com/movieratings/analysis/DataAnalyzer$DirectorStats.class and b/project/target/classes/com/movieratings/analysis/DataAnalyzer$DirectorStats.class differ
diff --git a/project/target/classes/com/movieratings/analysis/DataAnalyzer.class b/project/target/classes/com/movieratings/analysis/DataAnalyzer.class
index ece1886..33c2bce 100644
Binary files a/project/target/classes/com/movieratings/analysis/DataAnalyzer.class and b/project/target/classes/com/movieratings/analysis/DataAnalyzer.class differ
diff --git a/project/target/classes/com/movieratings/controller/DirectorController.class b/project/target/classes/com/movieratings/controller/DirectorController.class
index d43e606..a172bf4 100644
Binary files a/project/target/classes/com/movieratings/controller/DirectorController.class and b/project/target/classes/com/movieratings/controller/DirectorController.class differ
diff --git a/project/target/classes/com/movieratings/crawler/MovieCrawler.class b/project/target/classes/com/movieratings/crawler/MovieCrawler.class
index 1ca7862..d983939 100644
Binary files a/project/target/classes/com/movieratings/crawler/MovieCrawler.class and b/project/target/classes/com/movieratings/crawler/MovieCrawler.class differ
diff --git a/project/target/classes/com/movieratings/display/ResultDisplay.class b/project/target/classes/com/movieratings/display/ResultDisplay.class
index 5fbe95e..1365607 100644
Binary files a/project/target/classes/com/movieratings/display/ResultDisplay.class and b/project/target/classes/com/movieratings/display/ResultDisplay.class differ
diff --git a/project/target/classes/com/movieratings/model/DirectorStats.class b/project/target/classes/com/movieratings/model/DirectorStats.class
index 0c0120c..f4337fc 100644
Binary files a/project/target/classes/com/movieratings/model/DirectorStats.class and b/project/target/classes/com/movieratings/model/DirectorStats.class differ
diff --git a/project/target/classes/com/movieratings/model/Movie.class b/project/target/classes/com/movieratings/model/Movie.class
index 80fcc64..4d1f38e 100644
Binary files a/project/target/classes/com/movieratings/model/Movie.class and b/project/target/classes/com/movieratings/model/Movie.class differ
diff --git a/project/target/classes/com/movieratings/repository/MovieRepository.class b/project/target/classes/com/movieratings/repository/MovieRepository.class
index 9db9f75..5980f6e 100644
Binary files a/project/target/classes/com/movieratings/repository/MovieRepository.class and b/project/target/classes/com/movieratings/repository/MovieRepository.class differ
diff --git a/project/target/classes/com/movieratings/service/MovieService.class b/project/target/classes/com/movieratings/service/MovieService.class
index b60fde7..79cad94 100644
Binary files a/project/target/classes/com/movieratings/service/MovieService.class and b/project/target/classes/com/movieratings/service/MovieService.class differ
diff --git a/project/target/maven-status/maven-compiler-plugin/compile/default-compile/createdFiles.lst b/project/target/maven-status/maven-compiler-plugin/compile/default-compile/createdFiles.lst
index e69de29..4ebf324 100644
--- a/project/target/maven-status/maven-compiler-plugin/compile/default-compile/createdFiles.lst
+++ b/project/target/maven-status/maven-compiler-plugin/compile/default-compile/createdFiles.lst
@@ -0,0 +1,13 @@
+com\movieratings\controller\DirectorController.class
+com\movieratings\MovieRatingsApplication.class
+com\movieratings\model\Movie.class
+com\movieratings\repository\MovieRepository.class
+com\movieratings\crawler\MovieCrawler.class
+com\movieratings\service\MovieService.class
+com\movieratings\model\DirectorStats.class
+com\movieratings\analysis\DataAnalyzer$CorrelationResult.class
+com\movieratings\display\ResultDisplay.class
+com\movieratings\Main.class
+com\movieratings\analysis\DataAnalyzer.class
+com\movieratings\DataInitializer.class
+com\movieratings\analysis\DataAnalyzer$DirectorStats.class
diff --git a/project/target/maven-status/maven-compiler-plugin/testCompile/default-testCompile/createdFiles.lst b/project/target/maven-status/maven-compiler-plugin/testCompile/default-testCompile/createdFiles.lst
index e69de29..20c22fc 100644
--- a/project/target/maven-status/maven-compiler-plugin/testCompile/default-testCompile/createdFiles.lst
+++ b/project/target/maven-status/maven-compiler-plugin/testCompile/default-testCompile/createdFiles.lst
@@ -0,0 +1 @@
+com\movieratings\analysis\DataAnalyzerTest.class
diff --git a/project/target/surefire-reports/TEST-com.movieratings.analysis.DataAnalyzerTest.xml b/project/target/surefire-reports/TEST-com.movieratings.analysis.DataAnalyzerTest.xml
deleted file mode 100644
index 95688b3..0000000
--- a/project/target/surefire-reports/TEST-com.movieratings.analysis.DataAnalyzerTest.xml
+++ /dev/null
@@ -1,64 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<testsuite xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="https://maven.apache.org/surefire/maven-surefire-plugin/xsd/surefire-test-report.xsd" name="com.movieratings.analysis.DataAnalyzerTest" time="0.054" tests="2" errors="0" skipped="0" failures="0">
-  <properties>
-    <property name="java.specification.version" value="25"/>
-    <property name="sun.cpu.isalist" value="amd64"/>
-    <property name="sun.jnu.encoding" value="GBK"/>
-    <property name="java.class.path" value="D:\VisualStudioProgram\VSCodePrograms\JavaLearningProject\java\project\target\test-classes;D:\VisualStudioProgram\VSCodePrograms\JavaLearningProject\java\project\target\classes;C:\Users\admin\.m2\repository\org\springframework\boot\spring-boot-starter-web\2.7.12\spring-boot-starter-web-2.7.12.jar;C:\Users\admin\.m2\repository\org\springframework\boot\spring-boot-starter\2.7.12\spring-boot-starter-2.7.12.jar;C:\Users\admin\.m2\repository\org\springframework\boot\spring-boot\2.7.12\spring-boot-2.7.12.jar;C:\Users\admin\.m2\repository\org\springframework\boot\spring-boot-autoconfigure\2.7.12\spring-boot-autoconfigure-2.7.12.jar;C:\Users\admin\.m2\repository\org\springframework\boot\spring-boot-starter-logging\2.7.12\spring-boot-starter-logging-2.7.12.jar;C:\Users\admin\.m2\repository\ch\qos\logback\logback-classic\1.2.12\logback-classic-1.2.12.jar;C:\Users\admin\.m2\repository\ch\qos\logback\logback-core\1.2.12\logback-core-1.2.12.jar;C:\Users\admin\.m2\repository\org\apache\logging\log4j\log4j-to-slf4j\2.17.2\log4j-to-slf4j-2.17.2.jar;C:\Users\admin\.m2\repository\org\apache\logging\log4j\log4j-api\2.17.2\log4j-api-2.17.2.jar;C:\Users\admin\.m2\repository\org\slf4j\jul-to-slf4j\1.7.36\jul-to-slf4j-1.7.36.jar;C:\Users\admin\.m2\repository\jakarta\annotation\jakarta.annotation-api\1.3.5\jakarta.annotation-api-1.3.5.jar;C:\Users\admin\.m2\repository\org\yaml\snakeyaml\1.30\snakeyaml-1.30.jar;C:\Users\admin\.m2\repository\org\springframework\boot\spring-boot-starter-json\2.7.12\spring-boot-starter-json-2.7.12.jar;C:\Users\admin\.m2\repository\com\fasterxml\jackson\datatype\jackson-datatype-jdk8\2.13.5\jackson-datatype-jdk8-2.13.5.jar;C:\Users\admin\.m2\repository\com\fasterxml\jackson\datatype\jackson-datatype-jsr310\2.13.5\jackson-datatype-jsr310-2.13.5.jar;C:\Users\admin\.m2\repository\com\fasterxml\jackson\module\jackson-module-parameter-names\2.13.5\jackson-module-parameter-names-2.13.5.jar;C:\Users\admin\.m2\repository\org\springframework\boot\spring-boot-starter-tomcat\2.7.12\spring-boot-starter-tomcat-2.7.12.jar;C:\Users\admin\.m2\repository\org\apache\tomcat\embed\tomcat-embed-core\9.0.75\tomcat-embed-core-9.0.75.jar;C:\Users\admin\.m2\repository\org\apache\tomcat\embed\tomcat-embed-el\9.0.75\tomcat-embed-el-9.0.75.jar;C:\Users\admin\.m2\repository\org\apache\tomcat\embed\tomcat-embed-websocket\9.0.75\tomcat-embed-websocket-9.0.75.jar;C:\Users\admin\.m2\repository\org\springframework\spring-web\5.3.27\spring-web-5.3.27.jar;C:\Users\admin\.m2\repository\org\springframework\spring-beans\5.3.27\spring-beans-5.3.27.jar;C:\Users\admin\.m2\repository\org\springframework\spring-webmvc\5.3.27\spring-webmvc-5.3.27.jar;C:\Users\admin\.m2\repository\org\springframework\spring-aop\5.3.27\spring-aop-5.3.27.jar;C:\Users\admin\.m2\repository\org\springframework\spring-context\5.3.27\spring-context-5.3.27.jar;C:\Users\admin\.m2\repository\org\springframework\spring-expression\5.3.27\spring-expression-5.3.27.jar;C:\Users\admin\.m2\repository\org\springframework\boot\spring-boot-starter-data-jpa\2.7.12\spring-boot-starter-data-jpa-2.7.12.jar;C:\Users\admin\.m2\repository\org\springframework\boot\spring-boot-starter-aop\2.7.12\spring-boot-starter-aop-2.7.12.jar;C:\Users\admin\.m2\repository\org\aspectj\aspectjweaver\1.9.7\aspectjweaver-1.9.7.jar;C:\Users\admin\.m2\repository\org\springframework\boot\spring-boot-starter-jdbc\2.7.12\spring-boot-starter-jdbc-2.7.12.jar;C:\Users\admin\.m2\repository\com\zaxxer\HikariCP\4.0.3\HikariCP-4.0.3.jar;C:\Users\admin\.m2\repository\org\springframework\spring-jdbc\5.3.27\spring-jdbc-5.3.27.jar;C:\Users\admin\.m2\repository\jakarta\transaction\jakarta.transaction-api\1.3.3\jakarta.transaction-api-1.3.3.jar;C:\Users\admin\.m2\repository\jakarta\persistence\jakarta.persistence-api\2.2.3\jakarta.persistence-api-2.2.3.jar;C:\Users\admin\.m2\repository\org\hibernate\hibernate-core\5.6.15.Final\hibernate-core-5.6.15.Final.jar;C:\Users\admin\.m2\repository\org\jboss\logging\jboss-logging\3.4.3.Final\jboss-logging-3.4.3.Final.jar;C:\Users\admin\.m2\repository\net\bytebuddy\byte-buddy\1.12.23\byte-buddy-1.12.23.jar;C:\Users\admin\.m2\repository\antlr\antlr\2.7.7\antlr-2.7.7.jar;C:\Users\admin\.m2\repository\org\jboss\jandex\2.4.2.Final\jandex-2.4.2.Final.jar;C:\Users\admin\.m2\repository\com\fasterxml\classmate\1.5.1\classmate-1.5.1.jar;C:\Users\admin\.m2\repository\org\hibernate\common\hibernate-commons-annotations\5.1.2.Final\hibernate-commons-annotations-5.1.2.Final.jar;C:\Users\admin\.m2\repository\org\glassfish\jaxb\jaxb-runtime\2.3.8\jaxb-runtime-2.3.8.jar;C:\Users\admin\.m2\repository\org\glassfish\jaxb\txw2\2.3.8\txw2-2.3.8.jar;C:\Users\admin\.m2\repository\com\sun\istack\istack-commons-runtime\3.0.12\istack-commons-runtime-3.0.12.jar;C:\Users\admin\.m2\repository\com\sun\activation\jakarta.activation\1.2.2\jakarta.activation-1.2.2.jar;C:\Users\admin\.m2\repository\org\springframework\data\spring-data-jpa\2.7.12\spring-data-jpa-2.7.12.jar;C:\Users\admin\.m2\repository\org\springfram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-    <property name="java.vm.vendor" value="Oracle Corporation"/>
-    <property name="sun.arch.data.model" value="64"/>
-    <property name="user.variant" value=""/>
-    <property name="java.vendor.url" value="https://java.oracle.com/"/>
-    <property name="user.timezone" value="Asia/Shanghai"/>
-    <property name="os.name" value="Windows 11"/>
-    <property name="java.vm.specification.version" value="25"/>
-    <property name="sun.java.launcher" value="SUN_STANDARD"/>
-    <property name="user.country" value="CN"/>
-    <property name="sun.boot.library.path" value="C:\Program Files\Java\jdk-25.0.2\bin"/>
-    <property name="sun.java.command" value="C:\Users\admin\AppData\Local\Temp\surefire7573759379920718256\surefirebooter1694562809583621929.jar C:\Users\admin\AppData\Local\Temp\surefire7573759379920718256 2026-03-24T21-47-18_402-jvmRun1 surefire9919222376743536875tmp surefire_017360707459837478740tmp"/>
-    <property name="jdk.debug" value="release"/>
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-    <property name="sun.cpu.endian" value="little"/>
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-    <property name="sun.io.unicode.encoding" value="UnicodeLittle"/>
-    <property name="java.class.version" value="69.0"/>
-  </properties>
-  <testcase name="testPearsonCorrelation" classname="com.movieratings.analysis.DataAnalyzerTest" time="0.043"/>
-  <testcase name="testDirectorRanking" classname="com.movieratings.analysis.DataAnalyzerTest" time="0.004"/>
-</testsuite>
\ No newline at end of file
diff --git a/project/target/surefire-reports/com.movieratings.analysis.DataAnalyzerTest.txt b/project/target/surefire-reports/com.movieratings.analysis.DataAnalyzerTest.txt
deleted file mode 100644
index 47f2c5e..0000000
--- a/project/target/surefire-reports/com.movieratings.analysis.DataAnalyzerTest.txt
+++ /dev/null
@@ -1,4 +0,0 @@
--------------------------------------------------------------------------------
-Test set: com.movieratings.analysis.DataAnalyzerTest
--------------------------------------------------------------------------------
-Tests run: 2, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.054 s - in com.movieratings.analysis.DataAnalyzerTest
diff --git a/project/target/test-classes/com/movieratings/analysis/DataAnalyzerTest.class b/project/target/test-classes/com/movieratings/analysis/DataAnalyzerTest.class
index 018f931..a86d904 100644
Binary files a/project/target/test-classes/com/movieratings/analysis/DataAnalyzerTest.class and b/project/target/test-classes/com/movieratings/analysis/DataAnalyzerTest.class differ