创建Expense

ffms-MyBatisProject/src/com/ssm/test/TestExpense.java

@@ -1,3 +1,5 @@
+package com.ssm.test;
+
 import com.ssm.entity.Expense;
 import org.apache.ibatis.io.Resources;
 import org.apache.ibatis.session.SqlSession;
@@ -7,22 +9,17 @@ import java.util.List;
 
 public class TestExpense {
     public static void main(String[] args) throws Exception {
-        // 1. 加载MyBatis配置
-        SqlSessionFactory factory = new SqlSessionFactoryBuilder().build(
-                Resources.getResourceAsStream("config.xml")
-        );
+        SqlSessionFactory factory = new SqlSessionFactoryBuilder()
+                .build(Resources.getResourceAsStream("config.xml"));
 
-        // 2. 获取连接
         try (SqlSession session = factory.openSession()) {
-
-            // 3. 调用Mapper查询所有支出
             List<Expense> list = session.selectList("com.ssm.mapper.ExpenseMapper.findAllExpense");
+            System.out.println("===== 组员B：所有支出记录 =====");
+            for (Expense e : list) System.out.println(e);
 
-            // 4. 输出结果
-            System.out.println("==================== 组员B：支出表查询成功 ====================");
-            for (Expense e : list) {
-                System.out.println(e);
-            }
+            Expense expense = session.selectOne("com.ssm.mapper.ExpenseMapper.findExpenseById", 1);
+            System.out.println("\n===== 组员B：按ID查询 =====");
+            System.out.println(expense);
         }
     }
 }