From 6b10fb9c3efde6416b564b83dae7de38d4fb77ec Mon Sep 17 00:00:00 2001
From: Dragon1573 <Legend_1949@126.com>
Date: Thu, 12 Nov 2020 00:47:29 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8D=E4=BA=86=E4=B8=80=E4=B8=AA?=
 =?UTF-8?q?=E4=B8=A5=E9=87=8D=E7=9A=84=20Bug?=
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1. 将显式数据库连接重构为 Tomcat 内置连接池；
2. 将连接池数据源配置迁移到 META-INF/context.xml。
3. 更新了 pom.xml ，指定 WAR 包名称，方便部署至 Apache Tomcat
---
 .idea/dataSources.xml                         |  11 +
 .idea/inspectionProfiles/Project_Default.xml  |   1 +
 .../Tomcat_9_0_36__Local_.xml                 |   8 +-
 pom.xml                                       |   3 +
 src/main/java/entities/UserInfo.java          |   7 +-
 src/main/java/servlets/ResetVerify.java       |   2 -
 src/main/java/utils/Connector.java            | 238 +++++++++---------
 src/main/resources/configurations.xml         |  16 --
 src/main/webapp/META-INF/context.xml          |   8 +
 src/main/webapp/WEB-INF/web.xml               |  13 +
 10 files changed, 166 insertions(+), 141 deletions(-)
 create mode 100644 .idea/dataSources.xml
 delete mode 100644 src/main/resources/configurations.xml
 create mode 100644 src/main/webapp/META-INF/context.xml

diff --git a/.idea/dataSources.xml b/.idea/dataSources.xml
new file mode 100644
index 0000000..1ccd6de
--- /dev/null
+++ b/.idea/dataSources.xml
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="DataSourceManagerImpl" format="xml" multifile-model="true">
+    <data-source source="LOCAL" name="database.sqlite" uuid="38198a6f-45c4-4ab0-8cb5-6384bef98b4d">
+      <driver-ref>sqlite.xerial</driver-ref>
+      <synchronize>true</synchronize>
+      <jdbc-driver>org.sqlite.JDBC</jdbc-driver>
+      <jdbc-url>jdbc:sqlite:$PROJECT_DIR$/src/main/resources/database.sqlite</jdbc-url>
+    </data-source>
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/inspectionProfiles/Project_Default.xml b/.idea/inspectionProfiles/Project_Default.xml
index 6560a98..66cd7d1 100644
--- a/.idea/inspectionProfiles/Project_Default.xml
+++ b/.idea/inspectionProfiles/Project_Default.xml
@@ -1,6 +1,7 @@
 <component name="InspectionProjectProfileManager">
   <profile version="1.0">
     <option name="myName" value="Project Default" />
+    <inspection_tool class="AlibabaSwitchStatement" enabled="false" level="CRITICAL" enabled_by_default="false" />
     <inspection_tool class="JavaDoc" enabled="true" level="WARNING" enabled_by_default="true">
       <option name="TOP_LEVEL_CLASS_OPTIONS">
         <value>
diff --git a/.idea/runConfigurations/Tomcat_9_0_36__Local_.xml b/.idea/runConfigurations/Tomcat_9_0_36__Local_.xml
index f86400e..9cc7063 100644
--- a/.idea/runConfigurations/Tomcat_9_0_36__Local_.xml
+++ b/.idea/runConfigurations/Tomcat_9_0_36__Local_.xml
@@ -1,8 +1,10 @@
 <component name="ProjectRunConfigurationManager">
   <configuration default="false" name="Tomcat 9.0.36 (Local)" type="#com.intellij.j2ee.web.tomcat.TomcatRunConfigurationFactory" factoryName="Local" APPLICATION_SERVER_NAME="Tomcat 9.0.36 (Local)" ALTERNATIVE_JRE_ENABLED="false" nameIsGenerated="true">
+    <option name="OPEN_IN_BROWSER" value="false" />
+    <option name="COMMON_VM_ARGUMENTS" value="-Dfile.encoding=UTF-8" />
     <option name="UPDATING_POLICY" value="redeploy-artifacts" />
     <deployment>
-      <artifact name="jsp-design-maven:war exploded">
+      <artifact name="JSP-Design:war">
         <settings>
           <option name="CONTEXT_PATH" value="/JSP_Design" />
         </settings>
@@ -12,7 +14,7 @@
       <option name="BASE_DIRECTORY_NAME" value="未命名_jsp-design-maven_2" />
       <option name="HTTP_PORT" value="80" />
     </server-settings>
-    <log_file alias="Tomcat Localhost Log" path="%IDEA_RUN:CATALINA_BASE%/logs/localhost.*" skipped="false" />
+    <log_file checked="false" alias="Tomcat Localhost Log" path="%IDEA_RUN:CATALINA_BASE%/logs/localhost.*" skipped="false" />
     <log_file checked="false" alias="Tomcat Catalina Log" path="%IDEA_RUN:CATALINA_BASE%/logs/catalina.*" skipped="false" />
     <predefined_log_file id="Tomcat Manager" />
     <predefined_log_file id="Tomcat Host Manager" />
@@ -67,7 +69,7 @@
     </ConfigurationWrapper>
     <method v="2">
       <option name="BuildArtifacts" enabled="true">
-        <artifact name="jsp-design-maven:war exploded" />
+        <artifact name="JSP-Design:war" />
       </option>
     </method>
   </configuration>
diff --git a/pom.xml b/pom.xml
index 9ed1821..9f114c3 100644
--- a/pom.xml
+++ b/pom.xml
@@ -111,6 +111,9 @@
         </plugin>
         <plugin>
           <artifactId>maven-war-plugin</artifactId>
+          <configuration>
+            <warName>JSP_Design</warName>
+          </configuration>
           <version>3.2.2</version>
         </plugin>
         <plugin>
diff --git a/src/main/java/entities/UserInfo.java b/src/main/java/entities/UserInfo.java
index 6be1e68..8adbf82 100644
--- a/src/main/java/entities/UserInfo.java
+++ b/src/main/java/entities/UserInfo.java
@@ -6,7 +6,6 @@
  * 存储用户信息，用于登陆
  *
  * @author Drogon1573
- * @date 2019/06/29
  */
 public class UserInfo implements Serializable {
     private static final long serialVersionUID = 4982980163500402507L;
@@ -25,7 +24,8 @@ public String getUsername() {
     /**
      * 获取用户名
      *
-     * @param username - 用户名
+     * @param username
+     *     - 用户名
      */
     public void setUsername(String username) {
         this.username = username;
@@ -43,7 +43,8 @@ public boolean isVerified() {
     /**
      * 设置登陆状态
      *
-     * @param verified - 登陆状态
+     * @param verified
+     *     - 登陆状态
      */
     public void setVerified(boolean verified) {
         this.verified = verified;
diff --git a/src/main/java/servlets/ResetVerify.java b/src/main/java/servlets/ResetVerify.java
index 5726f5f..a59bcfe 100644
--- a/src/main/java/servlets/ResetVerify.java
+++ b/src/main/java/servlets/ResetVerify.java
@@ -1,7 +1,6 @@
 package servlets;
 
 import java.io.IOException;
-
 import javax.servlet.annotation.WebServlet;
 import javax.servlet.http.HttpServlet;
 import javax.servlet.http.HttpServletRequest;
@@ -13,7 +12,6 @@
 
 /**
  * @author Dragon1573
- * @date 2019/7/12
  */
 @WebServlet(name = "ResetVerify", urlPatterns = {"/forget"})
 public class ResetVerify extends HttpServlet {
diff --git a/src/main/java/utils/Connector.java b/src/main/java/utils/Connector.java
index c5d5e41..444130c 100644
--- a/src/main/java/utils/Connector.java
+++ b/src/main/java/utils/Connector.java
@@ -1,12 +1,14 @@
 package utils;
 
-import java.io.IOException;
 import java.io.Serializable;
 import java.sql.*;
 import java.util.Arrays;
 import java.util.HashMap;
 import java.util.Objects;
-import java.util.Properties;
+import javax.naming.Context;
+import javax.naming.InitialContext;
+import javax.naming.NamingException;
+import javax.sql.DataSource;
 
 import com.alibaba.fastjson.JSONArray;
 import com.alibaba.fastjson.JSONObject;
@@ -18,35 +20,15 @@
  */
 public class Connector implements Serializable {
     private static final long serialVersionUID = -5284530935717575965L;
-    private Connection connection = null;
+    private static DataSource source = null;
 
-    public Connector() {
+    static {
         try {
-            Properties properties = new Properties();
-            // 载入配置文件
-            properties.loadFromXML(Objects.requireNonNull(
-                getClass().getClassLoader().getResourceAsStream("configurations.xml")
-            ));
-            // 加载驱动器
-            Class.forName(properties.getProperty("driver"));
-            // 尝试连接
-            connection = DriverManager.getConnection(properties.getProperty("url"));
-        } catch (SQLException | IOException | ClassNotFoundException exception) {
-            switch (exception.getClass().getTypeName()) {
-                case "SQLException":
-                    System.err.println("[Error] 数据库连接异常！");
-                    break;
-                case "ClassNotFoundException":
-                    System.err.println("[Error] 未找到数据库驱动器！");
-                    break;
-                case "IOException":
-                    System.err.println("[Error] 配置文件读取错误！");
-                    break;
-                default:
-                    System.err.println("[Error] 未知错误！");
-                    break;
-            }
-            exception.printStackTrace();
+            Context context = (Context)(new InitialContext().lookup("java:comp/env"));
+            // 查找数据源
+            source = (DataSource)context.lookup("jdbc/sqlite3");
+        } catch (NamingException e) {
+            e.printStackTrace();
         }
     }
 
@@ -60,11 +42,12 @@ public Connector() {
      *
      * @return 修改成功
      */
-    public boolean changeEmail(String username, String mail) {
+    public static boolean changeEmail(String username, String mail) {
         boolean success = false;
         try {
-            PreparedStatement statement = connection.prepareStatement(
-                "UPDATE Users SET Email = ? WHERE Username = ?");
+            PreparedStatement statement = Objects.requireNonNull(getConnection()).prepareStatement(
+                "UPDATE Users SET Email = ? WHERE Username = ?"
+            );
             statement.setString(1, mail);
             statement.setString(2, username);
             success = (statement.executeUpdate() > 0);
@@ -87,12 +70,12 @@ public boolean changeEmail(String username, String mail) {
      *
      * @return 修改成功
      */
-    public boolean changePassword(String username, String news, String old) {
+    public static boolean changePassword(String username, String news, String old) {
         boolean success = false;
         try {
-            PreparedStatement statement = connection.prepareStatement(
-                "UPDATE Users SET Password = ? WHERE (Username = ? AND Password"
-                + " = ?)");
+            PreparedStatement statement = Objects.requireNonNull(getConnection()).prepareStatement(
+                "UPDATE Users SET Password = ? WHERE (Username = ? AND Password = ?)"
+            );
             statement.setString(1, news);
             statement.setString(2, username);
             statement.setString(3, old);
@@ -114,11 +97,12 @@ public boolean changePassword(String username, String news, String old) {
      *
      * @return 修改成功
      */
-    public boolean changePhone(String username, String news) {
+    public static boolean changePhone(String username, String news) {
         boolean success = false;
         try {
-            PreparedStatement statement = connection.prepareStatement(
-                "UPDATE Users SET Phone = ? WHERE Username = ?");
+            PreparedStatement statement = Objects.requireNonNull(getConnection()).prepareStatement(
+                "UPDATE Users SET Phone = ? WHERE Username = ?"
+            );
             statement.setString(1, news);
             statement.setString(2, username);
             success = (statement.executeUpdate() > 0);
@@ -141,11 +125,12 @@ public boolean changePhone(String username, String news) {
      *
      * @return 修改成功
      */
-    public boolean changeProtection(String username, String question, String answer) {
+    public static boolean changeProtection(String username, String question, String answer) {
         boolean success = false;
         try {
-            PreparedStatement statement = connection.prepareStatement(
-                "UPDATE Users SET Question = ?, Answer = ? WHERE Username = ?");
+            PreparedStatement statement = Objects.requireNonNull(getConnection()).prepareStatement(
+                "UPDATE Users SET Question = ?, Answer = ? WHERE Username = ?"
+            );
             statement.setString(1, question);
             statement.setString(2, answer);
             statement.setString(3, username);
@@ -167,11 +152,12 @@ public boolean changeProtection(String username, String question, String answer)
      *
      * @return 修改成功
      */
-    public boolean changeUsername(String news, String old) {
+    public static boolean changeUsername(String news, String old) {
         boolean success = false;
         try {
-            PreparedStatement statement = connection.prepareStatement(
-                "UPDATE Users SET Username = ? WHERE Username = ?");
+            PreparedStatement statement = Objects.requireNonNull(getConnection()).prepareStatement(
+                "UPDATE Users SET Username = ? WHERE Username = ?"
+            );
             statement.setString(1, news);
             statement.setString(2, old);
             success = (statement.executeUpdate() > 0);
@@ -188,11 +174,12 @@ public boolean changeUsername(String news, String old) {
      *
      * @return 记录是否已被删除
      */
-    public boolean deleteComments(String timestamp) {
+    public static boolean deleteComments(String timestamp) {
         boolean isDeleted = false;
         try {
-            PreparedStatement statement = connection.prepareStatement(
-                "DELETE FROM Comments WHERE DateTime = ?");
+            PreparedStatement statement = Objects.requireNonNull(getConnection()).prepareStatement(
+                "DELETE FROM Comments WHERE DateTime = ?"
+            );
             statement.setString(1, timestamp);
             isDeleted = (statement.executeUpdate() > 0);
             statement.close();
@@ -206,16 +193,14 @@ public boolean deleteComments(String timestamp) {
     /**
      * 递归删除仓库目录
      */
-    public boolean deleteFolder(
+    public static boolean deleteFolder(
         String username, String repository, String path
     ) {
         boolean success = false;
         try {
-            PreparedStatement statement = connection.prepareStatement(
-                "DELETE FROM Repositories "
-                + "WHERE Username = ? "
-                + "AND Repository = ? "
-                + "AND Filename LIKE ?");
+            PreparedStatement statement = Objects.requireNonNull(getConnection()).prepareStatement(
+                "DELETE FROM Repositories WHERE Username = ? AND Repository = ? AND Filename LIKE ?"
+            );
             statement.setString(1, username);
             statement.setString(2, repository);
             statement.setString(3, path + "%");
@@ -238,11 +223,12 @@ public boolean deleteFolder(
      *
      * @return 删除成功
      */
-    public boolean deleteRepositories(String username, String repository) {
+    public static boolean deleteRepositories(String username, String repository) {
         boolean success = false;
         try {
-            PreparedStatement statement = connection.prepareStatement(
-                "DELETE FROM Repositories WHERE Username = ? AND Repository = ?");
+            PreparedStatement statement = Objects.requireNonNull(getConnection()).prepareStatement(
+                "DELETE FROM Repositories WHERE Username = ? AND Repository = ?"
+            );
             statement.setString(1, username);
             statement.setString(2, repository);
             success = (statement.executeUpdate() > 0);
@@ -261,17 +247,19 @@ public boolean deleteRepositories(String username, String repository) {
      *
      * @return 用户评论
      */
-    public ResultSet fetchComments(String username) {
+    public static ResultSet fetchComments(String username) {
         final String anonymous = "Anonymous";
         ResultSet resultSet = null;
         try {
+            Connection connection = getConnection();
             if (!anonymous.equals(username)) {
-                PreparedStatement statement = connection.prepareStatement(
-                    "SELECT * FROM Comments WHERE Sender = ?");
+                PreparedStatement statement = Objects.requireNonNull(connection).prepareStatement(
+                    "SELECT * FROM Comments WHERE Sender = ?"
+                );
                 statement.setString(1, username);
                 resultSet = statement.executeQuery();
             } else {
-                Statement statement = connection.createStatement();
+                Statement statement = Objects.requireNonNull(connection).createStatement();
                 resultSet = statement.executeQuery("SELECT * FROM Comments");
             }
         } catch (SQLException e) {
@@ -288,22 +276,24 @@ public ResultSet fetchComments(String username) {
      *
      * @return 结果集
      */
-    public ResultSet fetchRepositories(String username) {
+    public static ResultSet fetchRepositories(String username) {
         String[] anonymous = {"佛大云服务", "Anonymous"};
         ResultSet resultSet = null;
         PreparedStatement statement;
 
         try {
+            Connection connection = getConnection();
             if (Arrays.asList(anonymous).contains(username)) {
                 // 匿名用户
-                statement = connection.prepareStatement(
-                    "SELECT Username, Repository FROM Repositories GROUP BY "
-                    + "Username, Repository");
+                statement = Objects.requireNonNull(connection).prepareStatement(
+                    "SELECT Username, Repository FROM Repositories GROUP BY Username, Repository"
+                );
             } else {
                 // 登录用户
-                statement = connection.prepareStatement(
-                    "SELECT Username, Repository FROM Repositories WHERE "
-                    + "Username = ? GROUP BY Username, Repository");
+                statement = Objects.requireNonNull(connection).prepareStatement(
+                    "SELECT Username, Repository FROM Repositories "
+                    + "WHERE Username = ? GROUP BY Username, Repository"
+                );
                 statement.setString(1, username);
             }
             resultSet = statement.executeQuery();
@@ -319,11 +309,12 @@ public ResultSet fetchRepositories(String username) {
      *
      * @return 以JSON封装的评论详情
      */
-    public JSONObject getComments(String timeStamp) {
+    public static JSONObject getComments(String timeStamp) {
         JSONObject object = new JSONObject();
         try {
-            PreparedStatement statement = connection.prepareStatement(
-                "SELECT * FROM Comments WHERE DateTime = ?");
+            PreparedStatement statement = Objects.requireNonNull(getConnection()).prepareStatement(
+                "SELECT * FROM Comments WHERE DateTime = ?"
+            );
             statement.setString(1, timeStamp);
             ResultSet resultSet = statement.executeQuery();
             if (resultSet != null && resultSet.next()) {
@@ -339,6 +330,22 @@ public JSONObject getComments(String timeStamp) {
         return object;
     }
 
+    private static Connection getConnection() {
+        try {
+            // 初始化上下文
+            return source.getConnection();
+        } catch (SQLException exception) {
+            switch (exception.getClass().getTypeName()) {
+                case "SQLException" -> System.err.println("[Error] 数据库连接异常！");
+                case "ClassNotFoundException" -> System.err.println("[Error] 未找到数据库驱动器！");
+                case "IOException" -> System.err.println("[Error] 配置文件读取错误！");
+                default -> System.err.println("[Error] 未知错误！");
+            }
+            exception.printStackTrace();
+            return null;
+        }
+    }
+
     /**
      * 获取文件
      *
@@ -351,14 +358,14 @@ public JSONObject getComments(String timeStamp) {
      *
      * @return 二进制文件内容
      */
-    public byte[] getFiles(
+    public static byte[] getFiles(
         String username, String repository, String filename
     ) {
         byte[] content = null;
         try {
-            PreparedStatement statement = connection.prepareStatement(
-                "SELECT Details FROM Repositories WHERE Username = ? AND "
-                + "Repository = ? AND Filename = ?");
+            PreparedStatement statement = Objects.requireNonNull(getConnection()).prepareStatement(
+                "SELECT Details FROM Repositories WHERE Username = ? AND Repository = ? AND Filename = ?"
+            );
             statement.setString(1, username);
             statement.setString(2, repository);
             statement.setString(3, filename);
@@ -382,12 +389,13 @@ public byte[] getFiles(
      *
      * @return 密保问题
      */
-    public String getQuestion(String username) {
+    public static String getQuestion(String username) {
         String question = null;
         try {
             // 执行SQL语句
-            PreparedStatement statement = connection.prepareStatement(
-                "SELECT Question FROM Users WHERE Username = ?");
+            PreparedStatement statement = Objects.requireNonNull(getConnection()).prepareStatement(
+                "SELECT Question FROM Users WHERE Username = ?"
+            );
             statement.setString(1, username);
             ResultSet resultSet = statement.executeQuery();
             // 提取密保问题
@@ -411,17 +419,14 @@ public String getQuestion(String username) {
      * @param path
      *     相对路径名
      */
-    public JSONArray listFiles(
+    public static JSONArray listFiles(
         String username, String repository, String path
     ) {
         JSONArray folders = new JSONArray();
         try {
-            PreparedStatement statement = connection.prepareStatement(
-                "SELECT Filename,Folder "
-                + "FROM Repositories "
-                + "WHERE Username = ? "
-                + "AND Repository = ? "
-                + "AND Path = ? "
+            PreparedStatement statement = Objects.requireNonNull(getConnection()).prepareStatement(
+                "SELECT Filename,Folder FROM Repositories "
+                + "WHERE Username = ? AND Repository = ? AND Path = ? "
                 + "GROUP BY Filename,Folder");
             statement.setString(1, username);
             statement.setString(2, repository);
@@ -449,12 +454,12 @@ public JSONArray listFiles(
      *
      * @return 受影响的行数
      */
-    public ResultSet login(String username) {
+    public static ResultSet login(String username) {
         ResultSet resultSet = null;
         try {
-            PreparedStatement statement = connection.prepareStatement(
-                "SELECT Password FROM Users WHERE (Username = ? OR Phone "
-                + "= ? OR Email = ?)");
+            PreparedStatement statement = Objects.requireNonNull(getConnection()).prepareStatement(
+                "SELECT Password FROM Users WHERE (Username = ? OR Phone = ? OR Email = ?)"
+            );
             statement.setString(1, username);
             statement.setString(2, username);
             statement.setString(3, username);
@@ -476,12 +481,12 @@ public ResultSet login(String username) {
      *
      * @return 操作成功
      */
-    public boolean renameRepositories(String username, String newName, String oldName) {
+    public static boolean renameRepositories(String username, String newName, String oldName) {
         boolean success = false;
         try {
-            PreparedStatement statement = connection.prepareStatement(
-                "UPDATE Repositories SET Repository = ? WHERE (Username = ? AND "
-                + "Repository = ?)");
+            PreparedStatement statement = Objects.requireNonNull(getConnection()).prepareStatement(
+                "UPDATE Repositories SET Repository = ? WHERE (Username = ? AND Repository = ?)"
+            );
             statement.setString(1, newName);
             statement.setString(2, username);
             statement.setString(3, oldName);
@@ -499,10 +504,11 @@ public boolean renameRepositories(String username, String newName, String oldNam
      * @param password
      *     密码
      */
-    public void reset(String username, String password) {
+    public static void reset(String username, String password) {
         try {
-            PreparedStatement statement = connection.prepareStatement(
-                "UPDATE Users SET Password = ? WHERE Username = ?");
+            PreparedStatement statement = Objects.requireNonNull(getConnection()).prepareStatement(
+                "UPDATE Users SET Password = ? WHERE Username = ?"
+            );
             statement.setString(1, Md5Util.encrypt(password));
             statement.setString(2, username);
             statement.executeUpdate();
@@ -522,12 +528,12 @@ public void reset(String username, String password) {
      *
      * @return 校验标记
      */
-    public boolean resetVerify(String username, String answer) {
+    public static boolean resetVerify(String username, String answer) {
         boolean isPassed = false;
         try {
-            PreparedStatement statement = connection.prepareStatement(
-                "SELECT COUNT(*) AS Flag FROM Users WHERE Username = ? AND "
-                + "Answer = ?");
+            PreparedStatement statement = Objects.requireNonNull(getConnection()).prepareStatement(
+                "SELECT COUNT(*) AS Flag FROM Users WHERE Username = ? AND Answer = ?"
+            );
             statement.setString(1, username);
             statement.setString(2, answer);
             ResultSet resultSet = statement.executeQuery();
@@ -551,14 +557,15 @@ public boolean resetVerify(String username, String answer) {
      *
      * @return boolean
      */
-    public boolean sendComments(
+    public static boolean sendComments(
         String username, String title, String comments
     ) {
         // 数据存入标记
         boolean isSaved = false;
         try {
-            PreparedStatement statement = connection.prepareStatement(
-                "INSERT INTO Comments VALUES (?, ?, ?, CURRENT_TIME)");
+            PreparedStatement statement = Objects.requireNonNull(getConnection()).prepareStatement(
+                "INSERT INTO Comments VALUES (?, ?, ?, CURRENT_TIME)"
+            );
             statement.setString(1, username);
             statement.setString(2, title);
             statement.setString(3, comments);
@@ -578,10 +585,11 @@ public boolean sendComments(
      *
      * @return 受影响的行数
      */
-    public int signUp(HashMap<String, String> profile) {
+    public static int signUp(HashMap<String, String> profile) {
         try {
-            PreparedStatement statement = connection.prepareStatement(
-                "INSERT INTO Users VALUES (?, ?, ?, ?, ?, ?)");
+            PreparedStatement statement = Objects.requireNonNull(getConnection()).prepareStatement(
+                "INSERT INTO Users VALUES (?, ?, ?, ?, ?, ?)"
+            );
             statement.setString(1, profile.get("Username"));
             statement.setString(2, Md5Util.encrypt(profile.get("Password")));
 
@@ -627,9 +635,9 @@ public int signUp(HashMap<String, String> profile) {
      *
      * @return 受影响的行数
      */
-    public ResultSet uniqueCheck(String username) {
+    public static ResultSet uniqueCheck(String username) {
         try {
-            PreparedStatement statement = connection.prepareStatement(
+            PreparedStatement statement = Objects.requireNonNull(getConnection()).prepareStatement(
                 "SELECT COUNT(*) AS Rows FROM Users WHERE Username = ?"
             );
             statement.setString(1, username);
@@ -655,21 +663,17 @@ public ResultSet uniqueCheck(String username) {
      * @param details
      *     二进制文件内容
      */
-    public void uploadFiles(
-        String username,
-        String repoName,
-        String path,
-        String fileName,
-        byte[] details,
-        boolean isDir
+    public static void uploadFiles(
+        String username, String repoName, String path, String fileName, byte[] details, boolean isDir
     ) {
         if (details == null) {
             // 没有内容的目录/空文件将由其他4项内容生成MD5校验值
             details = (username + repoName + path + fileName).getBytes();
         }
         try {
-            PreparedStatement statement = connection.prepareStatement(
-                "INSERT INTO Repositories VALUES (?, ?, ?, ?, ?, ?, ?)");
+            PreparedStatement statement = Objects.requireNonNull(getConnection()).prepareStatement(
+                "INSERT INTO Repositories VALUES (?, ?, ?, ?, ?, ?, ?)"
+            );
             statement.setString(1, username);
             statement.setString(2, repoName);
             statement.setString(3, path);
diff --git a/src/main/resources/configurations.xml b/src/main/resources/configurations.xml
deleted file mode 100644
index e096d26..0000000
--- a/src/main/resources/configurations.xml
+++ /dev/null
@@ -1,16 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-
-<!DOCTYPE properties SYSTEM "http://java.sun.com/dtd/properties.dtd">
-<properties>
-  <comment>
-    JDBC驱动程序配置
-
-    注：请严格按照如下样式进行配置！
-  </comment>
-
-  <!-- 数据库驱动类 -->
-  <entry key="driver">org.sqlite.JDBC</entry>
-
-  <!-- 数据库的 JDBC URL 链接 -->
-  <entry key="url">jdbc:sqlite::resource:database.sqlite</entry>
-</properties>
diff --git a/src/main/webapp/META-INF/context.xml b/src/main/webapp/META-INF/context.xml
new file mode 100644
index 0000000..8a53f8d
--- /dev/null
+++ b/src/main/webapp/META-INF/context.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<Context>
+  <!-- 数据库连接池配置信息 -->
+  <Resource name="jdbc/sqlite3" auth="Container" type="javax.sql.DataSource"
+            maxActive="25" maxIdle="5" maxWait="10000" driverClassName="org.sqlite.JDBC"
+            url="jdbc:sqlite::resource:database.sqlite" />
+</Context>
diff --git a/src/main/webapp/WEB-INF/web.xml b/src/main/webapp/WEB-INF/web.xml
index a5ab2a9..a5be2dc 100644
--- a/src/main/webapp/WEB-INF/web.xml
+++ b/src/main/webapp/WEB-INF/web.xml
@@ -4,6 +4,19 @@
 <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd" id="WebApp_ID" version="4.0">
   <!-- 项目显示名 -->
   <display-name>JSP_Design</display-name>
+  <context-param>
+    <param-name>javax.faces.CONFIG_FILES</param-name>
+    <param-value>/META-INF/context.xml</param-value>
+  </context-param>
+  <servlet>
+    <servlet-name>Faces Servlet</servlet-name>
+    <servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
+    <load-on-startup>1</load-on-startup>
+  </servlet>
+  <servlet-mapping>
+    <servlet-name>Faces Servlet</servlet-name>
+    <url-pattern>*.xhtml</url-pattern>
+  </servlet-mapping>
 
   <!-- 目录URL关联列表 -->
   <welcome-file-list>