创建一个student类，创建一个arraylist的集合，放置三个对象，并存在request中

Answer 1

Student s1 = new Students();
Student s2 = new Students();
Student s3 = new Students();
List<Student) Students = new ArrayList<Student>();
Students.add(s1);
Students.add(s2);
Students.add(s3);
request.setAttribute("students",students);