Struts2 内建验证器的使用

package cn.itcast.Action; import cn.itcast.bean.User; import com.opensymphony.xwork2.ActionContext; import com.opensymphony.xwork2.ActionSupport; public class UserAction extends ActionSupport { //一个属性author和一个对象属性user private String author; private User user; public void setUser(User user) { this.user = user; } public User getUser() { return user; } public void setAuthor(String author) { this.author = author; } public String getAuthor() { return author; } //自定义方法adduser public String adduser(){ ActionContext.getContext().put("message", "增加成功"); return "success"; } //自定义方法updateuser public String updateuser(){ ActionContext.getContext().put("message", "修改成功"); return "success"; } @Override public String execute() throws Exception { // TODO Auto-generated method stub /*父类默认是success，即使不重写此方法，只要继承 ActionSupport,就会调用父类，返回默认success。*/ return super.execute(); } }