struts2配置 用户注册登录

package com.struts2_test.action; import com.opensymphony.xwork2.ActionSupport; import com.struts2_test.dao.Dao; import java.sql.*; public class UserAction extends ActionSupport { private Dao dao = new Dao(); private String username; private String 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; } public String login() { String sql = "select * from tb_user where t_userName='" + getUsername()+"' and t_userPassword ='"+getPassword()+"'"; ResultSet rS = dao.executeQuery(sql); try { if (rS.next()) { return "loginin"; } return "loginout"; } catch (SQLException e) { // TODO Auto-generated catch block e.printStackTrace(); return "loginout"; } } public String regist() { String sql = "insert into tb_user(t_userName,t_userPassword,t_isCheck) values('"+getUsername()+"','"+getPassword()+"','0')"; int i = dao.executeUpdate(sql); if (i > -1) { return "success"; } return "error"; } }