先奉上简易demo一份：
Validate.java
public class Validate extends ActionSupport {
private String name;
private int age;
public String getName() { return name; }
public void setName(String name) { this.name = name; }
public int getAge() { return age; }
public void setAge(int age) { this.age = age; }
public String execute(){ return "success"; }
}
Vlidate-validtion.xml
