my code

.idea/.gitignore

@@ -0,0 +1,8 @@
+# Default ignored files
+/shelf/
+/workspace.xml
+# Editor-based HTTP Client requests
+/httpRequests/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml

.idea/hotelbook-JavaWeb-master.iml

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="FacetManager">
+    <facet type="web" name="Web">
+      <configuration>
+        <descriptors>
+          <deploymentDescriptor name="web.xml" url="file://$MODULE_DIR$/src/webapp/WEB-INF/web.xml" />
+        </descriptors>
+        <webroots>
+          <root url="file://$MODULE_DIR$/src/webapp" relative="/" />
+        </webroots>
+      </configuration>
+    </facet>
+  </component>
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$" />
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>

.idea/libraries/lib.xml

@@ -0,0 +1,34 @@
+<component name="libraryTable">
+  <library name="lib">
+    <CLASSES>
+      <root url="jar://$PROJECT_DIR$/lib/commons-io-1.4.jar!/" />
+      <root url="jar://$PROJECT_DIR$/lib/base64-1.2.jar!/" />
+      <root url="jar://$PROJECT_DIR$/lib/hamcrest-core-1.3.jar!/" />
+      <root url="jar://$PROJECT_DIR$/lib/javax.servlet.jar!/" />
+      <root url="jar://$PROJECT_DIR$/lib/javax.annotation.jar!/" />
+      <root url="jar://$PROJECT_DIR$/lib/commons-collections4-4.1.jar!/" />
+      <root url="jar://$PROJECT_DIR$/lib/javax.servlet.jsp.jstl.jar!/" />
+      <root url="jar://$PROJECT_DIR$/lib/commons-fileupload-1.2.1.jar!/" />
+      <root url="jar://$PROJECT_DIR$/lib/mchange-commons-java-0.2.11.jar!/" />
+      <root url="jar://$PROJECT_DIR$/lib/poi-scratchpad-3.17.jar!/" />
+      <root url="jar://$PROJECT_DIR$/lib/poi-3.17.jar!/" />
+      <root url="jar://$PROJECT_DIR$/lib/gson-2.2.4.jar!/" />
+      <root url="jar://$PROJECT_DIR$/lib/poi-examples-3.17.jar!/" />
+      <root url="jar://$PROJECT_DIR$/lib/xmlbeans-2.6.0.jar!/" />
+      <root url="jar://$PROJECT_DIR$/lib/javax.ejb.jar!/" />
+      <root url="jar://$PROJECT_DIR$/lib/javax.persistence.jar!/" />
+      <root url="jar://$PROJECT_DIR$/lib/javax.resource.jar!/" />
+      <root url="jar://$PROJECT_DIR$/lib/poi-ooxml-3.17.jar!/" />
+      <root url="jar://$PROJECT_DIR$/lib/junit-4.12.jar!/" />
+      <root url="jar://$PROJECT_DIR$/lib/javax.transaction.jar!/" />
+      <root url="jar://$PROJECT_DIR$/lib/mysql-connector-java-5.1.44-bin.jar!/" />
+      <root url="jar://$PROJECT_DIR$/lib/javax.jms.jar!/" />
+      <root url="jar://$PROJECT_DIR$/lib/poi-ooxml-schemas-3.17.jar!/" />
+      <root url="jar://$PROJECT_DIR$/lib/c3p0-0.9.5.2.jar!/" />
+      <root url="jar://$PROJECT_DIR$/lib/javax.servlet.jsp.jar!/" />
+      <root url="jar://$PROJECT_DIR$/lib/poi-excelant-3.17.jar!/" />
+    </CLASSES>
+    <JAVADOC />
+    <SOURCES />
+  </library>
+</component>

.idea/misc.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_20" project-jdk-name="21" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/out" />
+  </component>
+</project>

.idea/modules.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/hotelbook-JavaWeb-master.iml" filepath="$PROJECT_DIR$/.idea/hotelbook-JavaWeb-master.iml" />
+      <module fileurl="file://$PROJECT_DIR$/src/main/main.iml" filepath="$PROJECT_DIR$/src/main/main.iml" />
+      <module fileurl="file://$PROJECT_DIR$/src/test/test.iml" filepath="$PROJECT_DIR$/src/test/test.iml" />
+    </modules>
+  </component>
+</project>

.idea/vcs.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$/touge" vcs="Git" />
+    <mapping directory="$PROJECT_DIR$/touge/hotelbook-JavaWeb-master" vcs="Git" />
+  </component>
+</project>

README.md

@@ -1,2 +1,13 @@
-# hotelbook-JavaWeb-master
+## 酒店管理系统
 
+> 项目具体说明：简单的酒店管理系统。
+
+### 基础环境：
+
+- Tomcat9
+- Java 1.8+
+- Mysql/Mariadb
+
+### 描述：
+
+很简陋的小项目，真的很简陋，关于部署：Tomcat 务必为 9.X，JDK 可 12；数据库文件位于 `~/src/sql/` 中，初始登录用户密码为：`root`/`toor`；Tomcat 应用上下文为 `/hb`；项目依赖：`lib` 目录。

hotelbook-JavaWeb.iml

@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="FacetManager">
+    <facet type="web" name="Web">
+      <configuration>
+        <descriptors>
+          <deploymentDescriptor name="web.xml" url="file://$MODULE_DIR$/src/webapp/WEB-INF/web.xml" />
+        </descriptors>
+        <webroots>
+          <root url="file://$MODULE_DIR$/src/webapp" relative="/" />
+        </webroots>
+        <sourceRoots>
+          <root url="file://$MODULE_DIR$/src/main/java" />
+          <root url="file://$MODULE_DIR$/src/main/resources" />
+          <root url="file://$MODULE_DIR$/lib" />
+          <root url="file://$MODULE_DIR$/src" />
+        </sourceRoots>
+      </configuration>
+    </facet>
+  </component>
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src/main/java" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/src/main/resources" type="java-resource" />
+      <sourceFolder url="file://$MODULE_DIR$/src/test/java" isTestSource="true" />
+      <sourceFolder url="file://$MODULE_DIR$/lib" type="java-resource" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="library" exported="" name="Java EE 6-Java EE 6" level="project" />
+    <orderEntry type="library" exported="" scope="PROVIDED" name="Tomcat 10.0.18" level="application_server_libraries" />
+    <orderEntry type="library" exported="" name="lib" level="project" />
+  </component>
+  <component name="sonarModuleSettings">
+    <option name="localAnalysisScripName" value="&lt;PROJECT&gt;" />
+    <option name="serverName" value="&lt;PROJECT&gt;" />
+  </component>
+</module>

src/main/java/com/inks/hb/authinfo/controller/AuthInfoExcelServlet.java

@@ -0,0 +1,38 @@
+package com.inks.hb.authinfo.controller;
+
+import com.inks.hb.authinfo.pojo.AuthInfo;
+import com.inks.hb.authinfo.service.AuthService;
+import com.inks.hb.authinfo.service.AuthServiceImpl;
+import com.inks.hb.common.ExportExcel;
+
+import javax.servlet.annotation.WebServlet;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.sql.SQLException;
+import java.util.ArrayList;
+
+@WebServlet(name = "AuthInfoExcelServlet", value = "/AuthInfoExcelServlet")
+public class AuthInfoExcelServlet extends HttpServlet {
+    protected void doPost(HttpServletRequest request, HttpServletResponse response) {
+        this.doGet(request, response);
+    }
+
+    protected void doGet(HttpServletRequest request, HttpServletResponse response) {
+
+        AuthService service = new AuthServiceImpl();
+
+        ArrayList<AuthInfo> infoArrayList = null;
+        try {
+            infoArrayList = service.query(1, service.queryAuthInfoNum());
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+
+        String[] headers = {"权限ID", "权限名称", "可读", "可写", "可改", "可删"};
+        String fileName = "权限信息";
+
+        ExportExcel<AuthInfo> ee = new ExportExcel<>();
+        ee.exportExcel(headers, infoArrayList, fileName, response);
+    }
+}

src/main/java/com/inks/hb/authinfo/controller/AuthInfoServlet.java

@@ -0,0 +1,102 @@
+package com.inks.hb.authinfo.controller;
+
+import com.google.gson.Gson;
+import com.inks.hb.authinfo.pojo.AuthInfo;
+import com.inks.hb.authinfo.service.AuthService;
+import com.inks.hb.authinfo.service.AuthServiceImpl;
+import com.inks.hb.common.PojotoGson;
+
+import javax.servlet.annotation.WebServlet;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.sql.SQLException;
+import java.util.ArrayList;
+
+/**
+ * 分页查询权限表
+ * 如查询过程中出现异常，统一返回'数据查询出现异常'
+ * 返回数据为pojotoGson类型
+ */
+@WebServlet(value = "/AuthInfoServlet", name = "AuthInfoServlet")
+public class AuthInfoServlet extends HttpServlet {
+    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws IOException {
+        this.doGet(request, response);
+    }
+
+    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException {
+
+        request.setCharacterEncoding("utf-8");
+        response.setContentType("text/html;charset=utf-8");
+        PrintWriter out = response.getWriter();
+
+        int page = Integer.parseInt(request.getParameter("page")); // 当前页码
+        int limit = Integer.parseInt(request.getParameter("limit")); // 每页的数据量
+        int make = Integer.parseInt(request.getParameter("make"));
+
+        // 调用service
+        AuthService service = new AuthServiceImpl();
+
+        // 默认输出信息
+        String code = "0"; //状态码
+        String msg = "数据查询正常"; //状态信息
+        String count = ""; //数据总数
+        ArrayList<AuthInfo> list = new ArrayList<>(); //数据内容
+
+        //单个全局属性
+        int authId;                  //权限ID
+        String authItem = "";        //权限名称
+        String isRead;               //可读
+        String isWrite;              //可写
+        String isChange;             //可改
+        String isDelete;             //可删
+        AuthInfo authInfo = null;
+
+        try {
+
+            // 状态标志 make 0重载 1新增 2修改 3搜索 4删除
+            if (make == 2) {
+                authId = Integer.parseInt(request.getParameter("authId"));
+                authItem = request.getParameter("authItem");
+                isRead = request.getParameter("isRead");
+                isWrite = request.getParameter("isWrite");
+                isChange = request.getParameter("isChange");
+                isDelete = request.getParameter("isDelete");
+                authInfo = new AuthInfo(authId, authItem, isRead, isWrite, isChange, isDelete);
+            } else if (make == 3) {
+                authItem = request.getParameter("authItem");
+            }
+
+            switch (make) {
+                case 2:
+                    service.updateAuthInfo(authInfo);
+                    break;
+                case 3:
+                    authInfo = service.query(authItem);
+                    list.clear();
+                    list.add(authInfo);
+                    break;
+            }
+            if (make != 3) {
+                list = service.query(page, limit);
+                count = String.valueOf(service.queryAuthInfoNum());
+            } else {
+                if (authInfo.getAuthId() == 0) {
+                    count = "0";
+                } else {
+                    count = "1";
+                }
+            }
+        } catch (SQLException e) {
+            code = "1";
+            msg = "数据查询出现异常";
+            e.printStackTrace();
+        } finally {
+            PojotoGson pojotoGson = new PojotoGson(code, msg, count, list);
+            Gson gson = new Gson();
+            out.print(gson.toJson(pojotoGson));
+        }
+    }
+}

src/main/java/com/inks/hb/authinfo/dao/AuthInfoDao.java

@@ -0,0 +1,176 @@
+package com.inks.hb.authinfo.dao;
+
+import com.inks.hb.authinfo.pojo.AuthInfo;
+import com.inks.hb.common.CommonDao;
+import com.inks.hb.common.DBUtil;
+
+import java.sql.Connection;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.util.ArrayList;
+
+public class AuthInfoDao implements CommonDao {
+
+    @Override
+    public void insertData(Object o) throws SQLException {
+        AuthInfo authInfo = (AuthInfo) o;
+
+        Connection conn = DBUtil.getConnection();
+
+        String sql = "insert into authInfo (authItem, isRead, isWrite, isChange, isDelete) values (?,?,?,?,?)";
+        PreparedStatement pstmt = conn.prepareStatement(sql);
+        pstmt.setString(1, authInfo.getAuthItem());
+        pstmt.setString(2, authInfo.getIsRead());
+        pstmt.setString(3, authInfo.getIsWrite());
+        pstmt.setString(4, authInfo.getIsChange());
+        pstmt.setString(5, authInfo.getIsDelete());
+
+        pstmt.executeUpdate();
+        pstmt.close();
+    }
+
+    @Override
+    public void deleteData(Object o) throws SQLException {
+        AuthInfo authInfo = (AuthInfo) o;
+
+        Connection conn = DBUtil.getConnection();
+
+        String sql = "DELETE FROM authInfo WHERE authId = ?";
+        PreparedStatement pstmt = conn.prepareStatement(sql);
+        pstmt.setInt(1, authInfo.getAuthId());
+
+        pstmt.executeUpdate();
+        pstmt.close();
+    }
+
+    @Override
+    public void updateData(Object o) throws SQLException {
+        AuthInfo authInfo = (AuthInfo) o;
+
+        Connection conn = DBUtil.getConnection();
+
+        String sql = "UPDATE authInfo SET authItem = ? ,isRead = ?,isWrite = ?,isChange = ?,isDelete = ? WHERE authId = ?";
+        PreparedStatement pstmt = conn.prepareStatement(sql);
+        pstmt.setString(1, authInfo.getAuthItem());
+        pstmt.setString(2, authInfo.getIsRead());
+        pstmt.setString(3, authInfo.getIsWrite());
+        pstmt.setString(4, authInfo.getIsChange());
+        pstmt.setString(5, authInfo.getIsDelete());
+        pstmt.setInt(6, authInfo.getAuthId());
+
+        pstmt.executeUpdate();
+        pstmt.close();
+    }
+
+    @Override
+    public int queryDataNum() throws SQLException {
+
+        Connection conn = DBUtil.getConnection();
+
+        String sql = "select count(*) from authInfo;";
+        PreparedStatement pstmt = conn.prepareStatement(sql);
+        ResultSet rs = pstmt.executeQuery();
+
+        int num;
+        if (rs.next()) num = rs.getInt("count(*)");
+        else num = 0;
+
+        rs.close();
+        pstmt.close();
+
+        return num;
+    }
+
+    @Override
+    public ArrayList<AuthInfo> query(int start, int length) throws SQLException {
+
+        Connection conn = DBUtil.getConnection();
+
+        String sql = "select * from authInfo limit ?, ?;";
+        PreparedStatement pstmt = conn.prepareStatement(sql);
+        pstmt.setInt(1, start - 1);
+        pstmt.setInt(2, length);
+        ResultSet rs = pstmt.executeQuery();
+
+        ArrayList<AuthInfo> list = new ArrayList<>();
+        AuthInfo authInfo;
+
+        while (rs.next()) {
+            authInfo = new AuthInfo(rs.getInt(1), rs.getString(2), rs.getString(3)
+                    , rs.getString(4), rs.getString(5), rs.getString(6));
+            list.add(authInfo);
+        }
+
+        rs.close();
+        pstmt.close();
+
+        return list;
+    }
+
+    @Override
+    public Object query(Object o) throws SQLException {
+        AuthInfo authInfoQuery = (AuthInfo) o;
+
+        Connection conn = DBUtil.getConnection();
+
+        //存在两种查：查ID和查NAME
+        String sql = "";
+        boolean isQueryId = false;
+        if (authInfoQuery.getAuthId() == 0)
+            sql = "SELECT * FROM authInfo WHERE authItem = ?";
+        else if (authInfoQuery.getAuthItem() == null) {
+            sql = "SELECT * FROM authInfo WHERE authId = ?";
+            isQueryId = true;
+        }
+
+        PreparedStatement pstmt = conn.prepareStatement(sql);
+        if (isQueryId) pstmt.setInt(1, authInfoQuery.getAuthId());
+        else pstmt.setString(1, authInfoQuery.getAuthItem());
+        ResultSet rs = pstmt.executeQuery();
+
+        AuthInfo authInfo = null;
+        while (rs.next()) {
+            authInfo = new AuthInfo(rs.getInt(1), rs.getString(2), rs.getString(3)
+                    , rs.getString(4), rs.getString(5), rs.getString(6));
+        }
+
+        if (authInfo == null)
+            authInfo = new AuthInfo();
+
+        rs.close();
+        pstmt.close();
+
+        return authInfo;
+    }
+
+    /**
+     * 查询名称
+     *
+     * @param authInfoQuery 待查询对象
+     * @return 查询结果对象
+     * @throws SQLException 数据库
+     */
+    public AuthInfo queryName(AuthInfo authInfoQuery) throws SQLException {
+        Connection conn = DBUtil.getConnection();
+
+        String sql = "SELECT * FROM authInfo WHERE authItem = ?";
+        PreparedStatement pstmt = conn.prepareStatement(sql);
+        pstmt.setString(1, authInfoQuery.getAuthItem());
+        ResultSet rs = pstmt.executeQuery();
+
+        AuthInfo authInfo = null;
+        while (rs.next()) {
+            authInfo = new AuthInfo(rs.getInt(1), rs.getString(2), rs.getString(3)
+                    , rs.getString(4), rs.getString(5), rs.getString(6));
+        }
+
+        if (authInfo == null)
+            authInfo = new AuthInfo();
+
+        rs.close();
+        pstmt.close();
+
+        return authInfo;
+    }
+}