Struts2注解的使用

个人日记
LoginAction

package com.sunny.action;

import org.apache.struts2.convention.annotation.Action;
import org.apache.struts2.convention.annotation.ExceptionMapping;
import org.apache.struts2.convention.annotation.ExceptionMappings;
import org.apache.struts2.convention.annotation.InterceptorRef;
import org.apache.struts2.convention.annotation.InterceptorRefs;
import org.apache.struts2.convention.annotation.Namespace;
import org.apache.struts2.convention.annotation.ParentPackage;
import org.apache.struts2.convention.annotation.Result;
import com.opensymphony.xwork2.ActionSupport;
import com.sunny.entity.Users;

@ParentPackage("custom-default")
@Namespace("/user")
// 公共异常捕获
@ExceptionMappings({ @ExceptionMapping(exception = "java.lang.Exception", result = "exception") })
// 拦截器
@InterceptorRefs({ @InterceptorRef("annotatedStack") })
public class LoginAction extends ActionSupport {

	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;
	private Users users;

	public Users getUsers() {
		return users;
	}

	public void setUsers(Users users) {
		this.users = users;
	}

	@Action(value = "loginUser", results = {
			@Result(name = "success", location = "/a.jsp"),
			@Result(name = "error", location = "/index.jsp") })
	@Override
	public String execute() {
		if (users.getUsername().equals("sunny")
				&& users.getPassword().equals("sunny")) {
			return "success";
		} else {
			return "error";
		}
	}

	@Override
	public void validate() {
		if (users.getUsername().length() == 0) {
			addFieldError("username", "用户名不能为空");
		} else if (!users.getUsername().equals("sunny")) {
			addFieldError("username", "无效的用户名");
		}
		if (users.getPassword().length() == 0) {
			addFieldError("password", "密码不能为空");
		}
	}
}