任务12

grademanagement-MyBatisProject/src/com/ssm/test/TestExam.java

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+package com.ssm.test;
+
+import com.ssm.entity.Exam;
+import com.ssm.mapper.ExamMapper;
+import org.apache.ibatis.io.Resources;
+import org.apache.ibatis.session.SqlSession;
+import org.apache.ibatis.session.SqlSessionFactory;
+import org.apache.ibatis.session.SqlSessionFactoryBuilder;
+
+import java.io.InputStream;
+import java.util.List;
+
+public class TestExam {
+    public static void main(String[] args) {
+        try {
+            // 初始化 MyBatis
+            InputStream inputStream = Resources.getResourceAsStream("config.xml");
+            SqlSessionFactory sqlSessionFactory = new SqlSessionFactoryBuilder().build(inputStream);
+            SqlSession sqlSession = sqlSessionFactory.openSession(true); // true表示自动提交
+            
+            System.out.println("✅ MyBatis 连接成功！\n");
+            
+            // 获取 ExamMapper 实例
+            ExamMapper examMapper = sqlSession.getMapper(ExamMapper.class);
+            
+            // ========== 添加考试信息 ==========
+            System.out.println("=== 添加考试信息 ===");
+            
+            // 创建考试信息对象
+            Exam newExam = new Exam();
+            newExam.setExamName("期末考试");
+            newExam.setExamTime("2026-06-30 14:00");
+            newExam.setExamAddress("教学楼A101");
+            
+            // 调用 addExam 方法添加考试信息
+            examMapper.addExam(newExam);
+            
+            System.out.println("✅ 考试信息添加成功！");
+            System.out.println("添加的考试ID: " + newExam.getExamId());
+            System.out.println("考试名称: " + newExam.getExamName());
+            System.out.println("考试时间: " + newExam.getExamTime());
+            System.out.println("考试地点: " + newExam.getExamAddress());
+            
+            // 验证添加结果 - 查询所有考试
+            System.out.println("\n=== 所有考试列表（验证添加结果）===");
+            List<Exam> allExams = examMapper.getAllExams();
+            for (Exam exam : allExams) {
+                System.out.println(exam);
+            }
+            
+            // 关闭会话
+            sqlSession.close();
+            System.out.println("\n✅ 测试完成！");
+            
+        } catch (Exception e) {
+            System.err.println("❌ 测试失败：");
+            e.printStackTrace();
+        }
+    }
+}

out/production/grademanagement-MyBatisProject/com/ssm/mapper/ExamMapper.xml

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+<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE mapper
+        PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
+        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="com.ssm.mapper.ExamMapper">
+    <resultMap id="ExamResultMap" type="com.ssm.entity.Exam">
+        <id property="examId" column="examId"/>
+        <result property="examName" column="examName"/>
+        <result property="examTime" column="examTime"/>
+        <result property="examAddress" column="examAddress"/>
+    </resultMap>
+    <select id="getExamById" resultType="com.ssm.entity.Exam">
+        SELECT examId, examName, examTime, examAddress
+        FROM exam
+        WHERE examId=#{examId}
+    </select>
+    <select id="getAllExams" resultType="com.ssm.entity.Exam">
+        SELECT examId, examName, examTime, examAddress
+        FROM exam
+        ORDER BY examId
+    </select>
+    <insert id="addExam" parameterType="com.ssm.entity.Exam">
+        INSERT INTO exam(examName, examTime, examAddress)
+        VALUES(#{examName}, #{examTime}, #{examAddress})
+    </insert>
+    <update id="updateExam" parameterType="com.ssm.entity.Exam">
+        UPDATE exam
+        SET examName = #{examName},
+            examTime = #{examTime},
+            examAddress = #{examAddress}
+        WHERE examId = #{examId}
+    </update>
+    <delete id="deleteExamById" parameterType="Integer">
+        DELETE FROM exam WHERE examId = #{examId}
+    </delete>
+
+    <select id="countTotlePage" resultType="Integer">
+        SELECT COUNT(*) FROM exam
+    </select>
+
+</mapper>