loginaction.java

j2ee程序。 spring、xml、 实现增加内容选项。

package com.gc.action;

import java.util.HashMap;

import com.gd.mvc.action.Action;
import com.gd.mvc.io.InfoInAndOut;

public class LoginAction {

	public InfoInAndOut doAction(InfoInAndOut infoIn) {
		String action = (infoIn.get("action") == null) ? "" : (String)infoIn.get("action");
		InfoInAndOut infoOut = infoIn;
		if (action.equals(""))                      	infoOut = this.doInit(infoIn);
		else if (action.equals("login"))  			infoOut = this.doLogin(infoIn);
		return infoOut;
	}
	/**该方法用来实现没有传入动作时要处理的内容
	* @param infoIn
	* @return HashMap
	*/

	private InfoInAndOut doInit(InfoInAndOut infoIn) {
		InfoInAndOut infoOut = infoIn;
		try {
			infoOut.put("msg", "请输入用户名和密码");
		} catch(Exception e) {
			e.printStackTrace();
		} finally {
			return infoOut;
		}
  	}
	
	/**该方法用来实现输出HelloWorld
	* @param infoIn
	* @return HashMap
	*/

	public InfoInAndOut doLogin(InfoInAndOut infoIn){
		InfoInAndOut infoOut = infoIn;
		//String username = (infoIn.get("username") == null) ? "" : (String)infoIn.get("username");
		//String password = (infoIn.get("password") == null) ? "" : (String)infoIn.get("password");
		
		try {
			User user = (User)infoIn.getVO();
			String username = user.getUsername();
			String password = user.getPassword();
			
			if ("gd".equals(username) && "123456".equals(password)) {
				infoOut.put("forwardJsp", "success");
				infoOut.put("msg", "登录成功");
			} else if ("gd".equals(username) && !"123456".equals(password)) {
				infoOut.put("msg", "密码错误");
			} else if (!"gd".equals(username) && "123456".equals(password)) {
				infoOut.put("msg", "用户名错误");
			}  else if (!"gd".equals(username) && !"123456".equals(password)) {
				infoOut.put("msg", "用户名和密码都输入错误");
			} else if ("".equals(username) && "".equals(password)) {
				infoOut.put("msg", "请输入用户名和密码");
			}
			infoOut.put("user", user);
		} catch(Exception e) {
			e.printStackTrace();
		} finally {
			return infoOut;
		}
  	}
}