完成Day2

.idea/1

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_11" default="true" project-jdk-name="11" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/out" />
+  </component>
+</project>

.idea/libraries/lib.xml

@@ -0,0 +1,10 @@
+<component name="libraryTable">
+  <library name="lib">
+    <CLASSES>
+      <root url="file://$PROJECT_DIR$/lib" />
+    </CLASSES>
+    <JAVADOC />
+    <SOURCES />
+    <jarDirectory url="file://$PROJECT_DIR$/lib" recursive="false" />
+  </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_11" default="true" project-jdk-name="11" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/out" />
+  </component>
+</project>

.idea/modules.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/AbsenceManager.iml" filepath="$PROJECT_DIR$/AbsenceManager.iml" />
+    </modules>
+  </component>
+</project>

.idea/workspace.xml

@@ -0,0 +1,99 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ChangeListManager">
+    <list default="true" id="a16f9e6c-d3d8-4ed4-a07c-f75cc82e9a65" name="默认更改列表" comment="" />
+    <option name="EXCLUDED_CONVERTED_TO_IGNORED" value="true" />
+    <option name="SHOW_DIALOG" value="false" />
+    <option name="HIGHLIGHT_CONFLICTS" value="true" />
+    <option name="HIGHLIGHT_NON_ACTIVE_CHANGELIST" value="false" />
+    <option name="LAST_RESOLUTION" value="IGNORE" />
+  </component>
+  <component name="FileTemplateManagerImpl">
+    <option name="RECENT_TEMPLATES">
+      <list>
+        <option value="Class" />
+      </list>
+    </option>
+  </component>
+  <component name="ProjectId" id="2qKehD6GdgWuPyMkIr2rZ4Mbypj" />
+  <component name="PropertiesComponent">
+    <property name="WebServerToolWindowFactoryState" value="false" />
+    <property name="aspect.path.notification.shown" value="true" />
+    <property name="last_opened_file_path" value="$PROJECT_DIR$/lib" />
+  </component>
+  <component name="RecentsManager">
+    <key name="CopyFile.RECENT_KEYS">
+      <recent name="C:\Users\402\Downloads\AbsenceManager\lib" />
+    </key>
+    <key name="MoveFile.RECENT_KEYS">
+      <recent name="C:\Users\402\IdeaProjects\AbsenceManager\sql" />
+    </key>
+  </component>
+  <component name="RunDashboard">
+    <option name="ruleStates">
+      <list>
+        <RuleState>
+          <option name="name" value="ConfigurationTypeDashboardGroupingRule" />
+        </RuleState>
+        <RuleState>
+          <option name="name" value="StatusDashboardGroupingRule" />
+        </RuleState>
+      </list>
+    </option>
+  </component>
+  <component name="RunManager" selected="JUnit.TestDatabaseUtil">
+    <configuration name="AbsenceManager 中的 test.model " type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
+      <module name="AbsenceManager" />
+      <extension name="coverage">
+        <pattern>
+          <option name="PATTERN" value="test.model.*" />
+          <option name="ENABLED" value="true" />
+        </pattern>
+      </extension>
+      <option name="PACKAGE_NAME" value="test.model" />
+      <option name="TEST_OBJECT" value="package" />
+      <method v="2">
+        <option name="Make" enabled="true" />
+      </method>
+    </configuration>
+    <configuration name="TestDatabaseUtil" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
+      <module name="AbsenceManager" />
+      <extension name="coverage">
+        <pattern>
+          <option name="PATTERN" value="test.util.*" />
+          <option name="ENABLED" value="true" />
+        </pattern>
+      </extension>
+      <option name="PACKAGE_NAME" value="test.util" />
+      <option name="MAIN_CLASS_NAME" value="test.util.TestDatabaseUtil" />
+      <option name="TEST_OBJECT" value="class" />
+      <method v="2">
+        <option name="Make" enabled="true" />
+      </method>
+    </configuration>
+    <recent_temporary>
+      <list>
+        <item itemvalue="JUnit.TestDatabaseUtil" />
+        <item itemvalue="JUnit.AbsenceManager 中的 test.model " />
+      </list>
+    </recent_temporary>
+  </component>
+  <component name="SvnConfiguration">
+    <configuration />
+  </component>
+  <component name="TaskManager">
+    <task active="true" id="Default" summary="Default task">
+      <changelist id="a16f9e6c-d3d8-4ed4-a07c-f75cc82e9a65" name="默认更改列表" comment="" />
+      <created>1734415810914</created>
+      <option name="number" value="Default" />
+      <option name="presentableId" value="Default" />
+      <updated>1734415810914</updated>
+      <workItem from="1734415814389" duration="1508000" />
+      <workItem from="1734575321116" duration="4743000" />
+    </task>
+    <servers />
+  </component>
+  <component name="TypeScriptGeneratedFilesManager">
+    <option name="version" value="1" />
+  </component>
+</project>

AbsenceManager.iml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="library" name="lib" level="project" />
+  </component>
+</module>

sql/init.sql

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+-- 创建数据库
+CREATE DATABASE IF NOT EXISTS absence_manager DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+USE absence_manager;
+
+-- 创建学生表
+CREATE TABLE IF NOT EXISTS students (
+    id INT PRIMARY KEY AUTO_INCREMENT,
+    student_id VARCHAR(20) UNIQUE NOT NULL,  -- 学号
+    name VARCHAR(50) NOT NULL,               -- 姓名
+    class_name VARCHAR(50) NOT NULL,         -- 班级
+    contact VARCHAR(20),                     -- 联系方式
+    college VARCHAR(50) NOT NULL,            -- 学院
+    major VARCHAR(50) NOT NULL,              -- 专业
+    password VARCHAR(50) NOT NULL            -- 密码
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='学生信息表';
+
+-- 创建教师表
+CREATE TABLE IF NOT EXISTS teachers (
+    id INT PRIMARY KEY AUTO_INCREMENT,
+    teacher_id VARCHAR(20) UNIQUE NOT NULL,  -- 工号
+    name VARCHAR(50) NOT NULL,               -- 姓名
+    department VARCHAR(50) NOT NULL,         -- 部门
+    contact VARCHAR(20),                     -- 联系方式
+    password VARCHAR(50) NOT NULL            -- 密码
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='教师信息表';
+
+-- 创建请假申请表
+CREATE TABLE IF NOT EXISTS leave_requests (
+    id INT PRIMARY KEY AUTO_INCREMENT,
+    student_id INT NOT NULL,                 -- 关联学生ID
+    start_time DATETIME NOT NULL,            -- 开始时间
+    end_time DATETIME NOT NULL,              -- 结束时间
+    duration DECIMAL(5,2) NOT NULL,          -- 时长
+    location VARCHAR(100) NOT NULL,          -- 外出地址
+    reason_type VARCHAR(50) NOT NULL,        -- 外出事由类型
+    reason_detail TEXT,                      -- 详细事由
+    is_leaving_city BOOLEAN DEFAULT FALSE,   -- 是否离津
+    status VARCHAR(20) NOT NULL DEFAULT 'PENDING',  -- 审批状态
+    approver_id INT,                         -- 审批人ID
+    approval_comment TEXT,                   -- 审批意见
+    request_time TIMESTAMP DEFAULT CURRENT_TIMESTAMP,  -- 申请时间
+    approval_time TIMESTAMP NULL,            -- 审批时间
+    FOREIGN KEY (student_id) REFERENCES students(id),
+    FOREIGN KEY (approver_id) REFERENCES teachers(id)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='请假申请表';
+
+-- 插入示例数据
+INSERT INTO students (student_id, name, class_name, contact, college, major, password) VALUES
+('2023208145', '李同学', '云计算G23-1', '15842087237', '信息工程学院', '云计算技术应用', '123456'),
+('2023208146', '张同学', '云计算G23-1', '15842087238', '信息工程学院', '云计算技术应用', '123456');
+
+INSERT INTO teachers (teacher_id, name, department, contact, password) VALUES
+('2023001', '王老师', '信息工程学院', '13912345678', '123456'),
+('2023002', '李老师', '信息工程学院', '13912345679', '123456');
+
+-- 插入请假申请示例数据
+INSERT INTO leave_requests (student_id, start_time, end_time, duration, location, reason_type, reason_detail, is_leaving_city, status, approver_id, approval_comment, request_time) VALUES
+(1, '2024-01-15 08:00:00', '2024-01-15 17:00:00', 9.00, '天津市河西区图书馆', '学习', '去图书馆学习准备考试', false, 'APPROVED', 1, '同意', '2024-01-14 10:00:00'),
+(2, '2024-01-16 13:00:00', '2024-01-16 17:30:00', 4.50, '天津市南开医院', '就医', '牙科复诊', false, 'APPROVED', 1, '注意安全', '2024-01-15 09:30:00'),
+(1, '2024-01-17 09:00:00', '2024-01-17 12:00:00', 3.00, '天津市档案馆', '办事', '办理个人档案', false, 'PENDING', null, null, '2024-01-16 16:20:00'),
+(2, '2024-01-18 14:00:00', '2024-01-18 18:00:00', 4.00, '和平区文化中心', '活动', '参加志愿者活动', false, 'REJECTED', 2, '活动时间与课程冲突', '2024-01-17 11:15:00'),
+(1, '2024-01-19 10:00:00', '2024-01-19 16:00:00', 6.00, '天津站', '返乡', '购买返乡车票', true, 'APPROVED', 2, '请注意防疫', '2024-01-18 14:40:00'),
+(2, '2024-01-20 09:30:00', '2024-01-20 11:30:00', 2.00, '河西区人才市场', '求职', '参加招聘会', false, 'PENDING', null, null, '2024-01-19 17:00:00'),
+(1, '2024-01-21 13:00:00', '2024-01-21 17:00:00', 4.00, '天津市第一中心医院', '就医', '例行体检', false, 'APPROVED', 1, '准假', '2024-01-20 10:25:00'),
+(2, '2024-01-22 08:00:00', '2024-01-22 18:00:00', 10.00, '滨海新区图书馆', '实习', '企业实地考察', false, 'PENDING', null, null, '2024-01-21 15:30:00'),
+(1, '2024-01-23 14:00:00', '2024-01-23 16:00:00', 2.00, '南开区政务中心', '办事', '办理身份证', false, 'APPROVED', 2, '同意', '2024-01-22 09:45:00'),
+(2, '2024-01-24 09:00:00', '2024-01-24 18:00:00', 9.00, '天津市人民医院', '就医', '陪同父亲做检查', false, 'PENDING', null, null, '2024-01-23 16:50:00');

src/model/ApprovalStatus.java

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+
+package model;
+
+/**
+ * 请假审批状态枚举类
+ */
+public enum ApprovalStatus {
+    PENDING("待审批"),    // 等待审批
+    APPROVED("已批准"),   // 已经批准
+    REJECTED("已驳回");   // 已经驳回
+
+    private final String description;  // 状态描述
+
+    ApprovalStatus(String description) {
+        this.description = description;
+    }
+
+    public String getDescription() {
+        return description;
+    }
+}

src/model/LeaveRequest.java

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+
+package model;
+
+import java.util.Date;
+
+public class LeaveRequest {
+    private int id;                  // 数据库主键ID
+    private Student student;         // 学生信息
+    private Date startTime;          // 开始时间
+    private Date endTime;            // 结束时间
+    private double duration;         // 时长
+    private String location;         // 外出地址
+    private String reasonType;       // 外出事由类型
+    private String reasonDetail;     // 详细事由
+    private boolean isLeavingCity;   // 是否离津
+    private ApprovalStatus status;   // 审批状态
+    private Teacher approver;        // 审批人
+    private String approvalComment;  // 审批意见
+    private Date requestTime;        // 申请时间
+    private Date approvalTime;       // 审批时间
+
+    // 构造方法
+
+    public LeaveRequest(int id, Student student, Date startTime, Date endTime, double duration, String location,
+                        String reasonType, String reasonDetail, boolean isLeavingCity, ApprovalStatus status,
+                        Teacher approver, String approvalComment, Date requestTime, Date approvalTime) {
+        this.id = id;
+        this.student = student;
+        this.startTime = startTime;
+        this.endTime = endTime;
+        this.duration = duration;
+        this.location = location;
+        this.reasonType = reasonType;
+        this.reasonDetail = reasonDetail;
+        this.isLeavingCity = isLeavingCity;
+        this.status = status;
+        this.approver = approver;
+        this.approvalComment = approvalComment;
+        this.requestTime = requestTime;
+        this.approvalTime = approvalTime;
+    }
+    // getter和setter方法
+
+    public int getId() {
+        return id;
+    }
+
+    public void setId(int id) {
+        this.id = id;
+    }
+
+    public Student getStudent() {
+        return student;
+    }
+
+    public void setStudent(Student student) {
+        this.student = student;
+    }
+
+    public Date getStartTime() {
+        return startTime;
+    }
+
+    public void setStartTime(Date startTime) {
+        this.startTime = startTime;
+    }
+
+    public Date getEndTime() {
+        return endTime;
+    }
+
+    public void setEndTime(Date endTime) {
+        this.endTime = endTime;
+    }
+
+    public double getDuration() {
+        return duration;
+    }
+
+    public void setDuration(double duration) {
+        this.duration = duration;
+    }
+
+    public String getLocation() {
+        return location;
+    }
+
+    public void setLocation(String location) {
+        this.location = location;
+    }
+
+    public String getReasonType() {
+        return reasonType;
+    }
+
+    public void setReasonType(String reasonType) {
+        this.reasonType = reasonType;
+    }
+
+    public String getReasonDetail() {
+        return reasonDetail;
+    }
+
+    public void setReasonDetail(String reasonDetail) {
+        this.reasonDetail = reasonDetail;
+    }
+
+    public boolean isLeavingCity() {
+        return isLeavingCity;
+    }
+
+    public void setLeavingCity(boolean leavingCity) {
+        isLeavingCity = leavingCity;
+    }
+
+    public ApprovalStatus getStatus() {
+        return status;
+    }
+
+    public void setStatus(ApprovalStatus status) {
+        this.status = status;
+    }
+
+    public Teacher getApprover() {
+        return approver;
+    }
+
+    public void setApprover(Teacher approver) {
+        this.approver = approver;
+    }
+
+    public String getApprovalComment() {
+        return approvalComment;
+    }
+
+    public void setApprovalComment(String approvalComment) {
+        this.approvalComment = approvalComment;
+    }
+
+    public Date getRequestTime() {
+        return requestTime;
+    }
+
+    public void setRequestTime(Date requestTime) {
+        this.requestTime = requestTime;
+    }
+
+    public Date getApprovalTime() {
+        return approvalTime;
+    }
+
+    public void setApprovalTime(Date approvalTime) {
+        this.approvalTime = approvalTime;
+    }
+}

src/model/Student.java

@@ -0,0 +1,92 @@
+package model;
+
+public class Student {
+    private int id;              // 数据库主键ID
+    private String studentId;    // 学号
+    private String name;         // 学生姓名
+    private String className;    // 班级
+    private String contact;      // 联系方式
+    private String college;      // 学院
+    private String major;        // 专业
+    private String password;     // 登录密码
+
+    public int getId() {
+        return id;
+    }
+
+    public void setId(int id) {
+        this.id = id;
+    }
+
+    public String getStudentId() {
+        return studentId;
+    }
+
+    public void setStudentId(String studentId) {
+        this.studentId = studentId;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getClassName() {
+        return className;
+    }
+
+    public void setClassName(String className) {
+        this.className = className;
+    }
+
+    public String getContact() {
+        return contact;
+    }
+
+    public void setContact(String contact) {
+        this.contact = contact;
+    }
+
+    public String getCollege() {
+        return college;
+    }
+
+    public void setCollege(String college) {
+        this.college = college;
+    }
+
+    public String getMajor() {
+        return major;
+    }
+
+    public void setMajor(String major) {
+        this.major = major;
+    }
+
+    public String getPassword() {
+        return password;
+    }
+
+    public void setPassword(String password) {
+        this.password = password;
+    }
+
+    public Student(int id, String studentId, String name, String className, String contact, String college, String major, String password) {
+        this.id = id;
+        this.studentId = studentId;
+        this.name = name;
+        this.className = className;
+        this.contact = contact;
+        this.college = college;
+        this.major = major;
+        this.password = password;
+    }
+// 构造方法
+
+
+
+    // getter和setter方法
+}

src/model/Teacher.java

@@ -0,0 +1,79 @@
+package model;
+
+/**
+ * 教师实体类
+ */
+public class Teacher {
+    private int id;              // 数据库主键ID
+    private String teacherId;    // 教师工号
+    private String name;         // 教师姓名
+    private String department;   // 所属部门
+    private String contact;      // 联系方式
+    private String password;     // 登录密码
+
+    // 使用 IDE 自动生成以下内容：
+    public Teacher( String teacherId, String name, String department, String contact,
+                    String password) {
+
+        this.teacherId = teacherId;
+        this.name = name;
+        this.department = department;
+        this.contact = contact;
+        this.password = password;
+    }
+
+    public Teacher() {
+    }
+
+    public int getId() {
+        return id;
+    }
+
+    public void setId(int id) {
+        this.id = id;
+    }
+
+    public String getTeacherId() {
+        return teacherId;
+    }
+
+    public void setTeacherId(String teacherId) {
+        this.teacherId = teacherId;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getDepartment() {
+        return department;
+    }
+
+    public void setDepartment(String department) {
+        this.department = department;
+    }
+
+    public String getContact() {
+        return contact;
+    }
+
+    public void setContact(String contact) {
+        this.contact = contact;
+    }
+
+    public String getPassword() {
+        return password;
+    }
+
+    public void setPassword(String password) {
+        this.password = password;
+    }
+
+
+    // 构造方法
+    // getter 和 setter 方法
+}

src/test/model/TeacherTest.java

@@ -0,0 +1,50 @@
+package test.model;
+
+import model.Teacher;
+import org.junit.Test;
+import static org.junit.Assert.*;
+
+public class TeacherTest {
+
+    @Test
+    public void testConstructorAndGetters() {
+        String teacherId = "T001";
+        String name = "张老师";
+        String department = "计算机系";
+        String contact = "13800138000";
+        String password = "password123";
+
+        Teacher teacher = new Teacher(teacherId, name, department, contact, password);
+
+        assertEquals("教师工号应匹配", teacherId, teacher.getTeacherId());
+        assertEquals("教师姓名应匹配", name, teacher.getName());
+        assertEquals("所属部门应匹配", department, teacher.getDepartment());
+        assertEquals("联系方式应匹配", contact, teacher.getContact());
+        assertEquals("密码应匹配", password, teacher.getPassword());
+    }
+
+    @Test
+    public void testSetters() {
+        Teacher teacher = new Teacher();
+
+        String teacherId = "T002";
+        String name = "李老师";
+        String department = "数学系";
+        String contact = "13900139000";
+        String password = "newpass123";
+
+
+        teacher.setTeacherId(teacherId);
+        teacher.setName(name);
+        teacher.setDepartment(department);
+        teacher.setContact(contact);
+        teacher.setPassword(password);
+
+
+        assertEquals("教师工号应匹配", teacherId, teacher.getTeacherId());
+        assertEquals("教师姓名应匹配", name, teacher.getName());
+        assertEquals("所属部门应匹配", department, teacher.getDepartment());
+        assertEquals("联系方式应匹配", contact, teacher.getContact());
+        assertEquals("密码应匹配", password, teacher.getPassword());
+    }
+}

src/test/util/TestDatabaseUtil.java

@@ -0,0 +1,19 @@
+package test.util;
+import org.junit.Test;
+import java.sql.Connection;
+import util.DatabaseUtil;
+import static org.junit.Assert.*;
+import java.sql.SQLException;
+
+public class TestDatabaseUtil {
+    @Test
+    public void testGetConnection() {
+        try (Connection connection = DatabaseUtil.getConnection()) {
+
+            assertNotNull("数据库连接不应该为空", connection);
+
+        } catch (Exception e) {
+           e.printStackTrace();
+        }
+    }
+}

src/util/DatabaseUtil.java

@@ -0,0 +1,24 @@
+package util;
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.SQLException;
+
+public class DatabaseUtil {
+    private static final String URL =
+            "jdbc:mysql://localhost:8200/absence_manager?useSSL=false&serverTimezone=UTC" +
+                    "&characterEncoding=UTF-8";
+    private static final String USERNAME = "root";
+    private static final String PASSWORD = "admin";
+
+    static {
+        try {
+            Class.forName("com.mysql.cj.jdbc.Driver");
+        } catch (ClassNotFoundException e) {
+            e.printStackTrace();
+        }
+    }
+
+    public static Connection getConnection() throws SQLException {
+        return DriverManager.getConnection(URL, USERNAME, PASSWORD);
+    }
+}