registeraction.java

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package cn.netjava.action;

import java.io.UnsupportedEncodingException;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import cn.netjava.pojo.*;
import cn.netjava.factory.*;

/**
 * 注册动作处理类
 * @author XieChengmin
 *
 */
public class RegisterAction implements Action {

	/**
	 * 进行用户注册
	 */
	public String execute(HttpServletRequest request,
			HttpServletResponse response) {
		try {
			request.setCharacterEncoding("GB18030");
		} catch (UnsupportedEncodingException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		
		String name = request.getParameter("name");
		String password = request.getParameter("password");

		boolean validate = PersonDAOFactory.getPersonDAOInstance().existSameUser(name);
		String path = "";
		
		if (!validate) {
			path = "/main.jsp";
			//创建新的注册用户 
			Person p = new Person();
			p.setName(name);
			p.setPassword(password);
			p.setDetail("");
			PersonDAOFactory.getPersonDAOInstance().add(p);
			
			//此时得到的用户已经包含了ID
			Person pp = PersonDAOFactory.getPersonDAOInstance().queryByName(name);
			
			request.getSession().setAttribute("userObj", pp);
		} else {
			request.setAttribute("error_msg", "此用户已经存在");
			path = "/userReg.jsp";
		}

		return path;
	}

}