ADD file via upload

Student.java

@@ -0,0 +1,52 @@
+// 学生实体类 - Model层
+public class Student {
+    private String id;
+    private String name;
+    private String age;
+    private String course;
+
+    public Student(String id, String name, String age, String course) {
+        this.id = id;
+        this.name = name;
+        this.age = age;
+        this.course = course;
+    }
+
+    // Getters and Setters
+    public String getId() {
+        return id;
+    }
+
+    public void setId(String id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getAge() {
+        return age;
+    }
+
+    public void setAge(String age) {
+        this.age = age;
+    }
+
+    public String getCourse() {
+        return course;
+    }
+
+    public void setCourse(String course) {
+        this.course = course;
+    }
+
+    @Override
+    public String toString() {
+        return "学生ID: " + id + ", 姓名: " + name + ", 年龄: " + age + ", 课程: " + course;
+    }
+}