login.java

用最近的dojo1.2.1制作前端的ajax购书网站

package server.servlet;

import java.io.*;
import javax.servlet.ServletException;
import server.servlet.OperateCookie.OperateCookie;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import server.consumer.*;
import java.util.*;
import javax.servlet.http.Cookie;
import server.database.*;
import java.sql.*;
import server.books.MyBookClass;
import changeToJson.ToJson;
/**
 * @version 	1.0
 * @author
 */
public class LogIn extends HttpServlet {
	
	private consumerLogin consumer=new consumerLogin();
		private ArrayList readData(HttpServletRequest req,ArrayList data)
	{
			ArrayList array=new ArrayList();
			Map map=req.getParameterMap();
			for(int i=0;i<data.size();i++)
			array.add(((String[])map.get(data.get(i).toString()))[0]);
			
			return array;
	}
		
	private boolean validata(HttpServletRequest req)
	{
		ArrayList data=new ArrayList();
		data.add("consumer_login_name");
		data.add("consumer_login_password");
		ArrayList array=readData(req,data);
		String name=(String)array.get(0);
		String password=(String)array.get(1);
		return consumer.validate(name,password);
		 
	}
		
		
	private boolean returndata(HttpServletRequest req)
	{
		/*
		StringBuffer str=new StringBuffer("{\n");
		str.append("result :");
		boolean rst=validata(req);
		if(rst==true)
		str.append("true");
		else
		str.append("false");
		str.append("\n}");
		return str;
		*/
		boolean rst=validata(req);
		return rst;	
	}
	
	private Cookie setCheck = null;	
	/**
	* @see javax.servlet.http.HttpServlet#void (javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
	*/
	public void doGet(HttpServletRequest req, HttpServletResponse resp)
		throws ServletException, IOException {
			resp.setHeader("Cache-Control","no-cache");
			PrintWriter out=resp.getWriter();
			//StringBuffer str=returndata(req);
			//out.print(str);
			resp.setContentType("text/html");
			boolean rst = returndata(req);
			String str;
			if(rst == true){
				str = "true";//operation more
			}
			else{
				str = "false";
			}
			System.out.println(str);
			out.print(str);
			
	}

	/**
	* @see javax.servlet.http.HttpServlet#void (javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
	*/

	
	
	public void doPost(HttpServletRequest req, HttpServletResponse resp)
		throws ServletException, IOException {
				
			doGet(req,resp);

	}

	/**
	* @see javax.servlet.GenericServlet#void ()
	*/
	public void init() throws ServletException {

		super.init();

	}

}