struts

1.创建实体类

package com.entity;

public class Elogin {
 private String username;
 private String password;

 public Elogin() {
  super();
  // TODO Auto-generated constructor stub
 }

 public Elogin(String username, String password) {
  super();
  this.username = username;
  this.password = password;
 }

 public String getUsername() {
  return username;
 }

 public void setUsername(String username) {
  this.username = username;
 }

 public String getPassword() {
  return password;
 }

 public void setPassword(String password) {
  this.password = password;
 }

}

package com.entity;
/**
 *
* @ClassName: User
* @Description: (一个人)
* @author Administrator
* @date 2017年10月12日 上午1:47:26
*
 */
public class User {
 private String name;
 private int age;
 private String sex;

 public User() {
  super();
  // TODO Auto-generated constructor stub
 }

 public User(String name, int age, String sex) {
  super();
  this.name = name;
  this.age = age;
  this.sex = sex;
 }

 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 getSex() {
  return sex;
 }

 public void setSex(String sex) {
  this.sex = sex;
 }

}

2.

package com.zking.Interceptor;

import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;

import org.apache.struts2.ServletActionContext;

import com.opensymphony.xwork2.Action;
import com.opensymphony.xwork2.ActionInvocation;
import com.opensymphony.xwork2.interceptor.MethodFilterInterceptor;

public class MyInterceptor extends  MethodFilterInterceptor{

 /**
  *
 * @Title: doIntercept
 * @Description: (放行的方法)
 * @param arg0
 * @return
 * @throws Exception
 * @return String
 * @throws
  */
 @Override
 protected String doIntercept(ActionInvocation actionInvocation) throws Exception {
 //取到session里面的值
  HttpServletRequest request=ServletActionContext.getRequest();
  String name=(String) request.getSession().getAttribute("login");
  if(name !=null){
   //取到则继续执行
   actionInvocation.invoke();
   //执行成功以后我也要回到的一个界面
   return Action.SUCCESS;
  }else{
   //没有获取到信息 应该要返回一个界面
   return Action.LOGIN;
  }
 }

}

3.

package com.action;

import java.util.ArrayList;
import java.util.List;

import com.entity.User;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.util.ValueStack;

public class IndexAction extends ActionSupport {

 private String name;

 public String getName() {
  return name;
 }

 private List<User> lu = new ArrayList<>();

 public List<User> getLu() {
  return lu;
 }

 @Override
 public String execute() throws Exception {
  System.out.println("不离不弃");
  return SUCCESS;
 }

 public String add() {

  // ActionContext actionContext =ActionContext.getContext();
  // ValueStack v1=actionContext.getValueStack();
  // v1.push("PUSH的值");
  // v1.set("zking","set的值");

  name = "悟空";
  
  lu.add(new User("悟空", 999, "石头屌"));

  return SUCCESS;
 }

}

package com.action;

import com.entity.Elogin;
import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.ModelDriven;

public class LoginAction extends ActionSupport implements ModelDriven<Elogin>{

 @Override
 public String execute() throws Exception {
  // TODO Auto-generated method stub
  return SUCCESS;
 }
 public String admin(){
  System.out.println(elogin.getUsername()+"加油"+elogin.getPassword());
  return SUCCESS;
 }
 private Elogin elogin=new Elogin();
 
 @Override
 public Elogin getModel() {
  // TODO Auto-generated method stub
  return elogin;
 }
}

package com.action;

import com.entity.Elogin;
import com.opensymphony.xwork2.ActionSupport;

public class LoginAction2 extends ActionSupport{
 
 @Override
 public String execute() throws Exception {
  // TODO Auto-generated method stub
  return SUCCESS;
 }
 
 public String admin(){
  System.out.println(elogin.getUsername()+"不放弃"+elogin.getPassword());
  return SUCCESS;
 }
 
 public Elogin elogin;

 public Elogin getElogin() {
  return elogin;
 }

 public void setElogin(Elogin elogin) {
  this.elogin = elogin;
 }
 
 

}

package com.action;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;

import org.apache.struts2.ServletActionContext;

import com.opensymphony.xwork2.ActionSupport;

public class LoginActionInterceptor extends ActionSupport{

 
 public String login(){
  HttpServletRequest request=ServletActionContext.getRequest();
  String name = request.getParameter("username");
  String pwd = request.getParameter("password");
  //成功存入session
  HttpSession session= request.getSession();
  if("admin".equalsIgnoreCase(name)&&"123".equals(pwd)){
   session.setAttribute("login", name);
   return SUCCESS;
  }else {
   return LOGIN;
  } 
 }
}

package com.action;

import javax.servlet.http.HttpServletRequest;

import org.apache.struts2.ServletActionContext;

import com.opensymphony.xwork2.ActionSupport;

public class TokenAction extends ActionSupport {

 @Override
 public String execute() throws Exception {

  HttpServletRequest request = ServletActionContext.getRequest();
  String name = request.getParameter("username");
  String pwd = request.getParameter("password");
  System.out.println(name + "------" + pwd);
  // 获取表单提交过的信息
  return SUCCESS;
 }
}