（6）将实体对象作为DynaActionForm的属性

1.         新建实体对象Student

     public class Student {
 private String userName;
 private int age;
 private String address;
 public String getUserName() {
  return userName;
 }
 public void setUserName(String userName) {
  this.userName = userName;
 }
 public int getAge() {
  return age;
 }
 public void setAge(int age) {
  this.age = age;
 }
 public String getAddress() {
  return address;
 }
 public void setAddress(String address) {
  this.address = address;
 }
 @Override
 public String toString() {
  // TODO Auto-generated method stub
  return userName+age+address;
 }
}

2.     创建页面,页面中input元素的name属性为实体对象名.属性名

<form action="regist2.do" method="get">
   name:<input type="text" name="student.userName">
   age :<input type="text" name="student.age">
   address:<input type="text" name="student.address">
   <input type="submit" name="button1">

</form>