checknameaction.java

应用JavaScript结合jquery写的小demo

package edu.cust.action;

import java.io.IOException;
import java.rmi.ServerException;
import java.util.ArrayList;

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

import edu.cust.beans.Person;
import edu.cust.service.PersonService;

public class CheckNameAction extends HttpServlet {
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServerException, IOException {
		response.setContentType("text/html");
		String username = new String(request.getParameter("username").getBytes("ISO-8859-1"),"UTF-8").trim();
		System.out.println("username = " +username);
		boolean equal = false;
		ArrayList list = PersonService.searchPerson();
		for(int i=0;i<list.size();i++){
			Person p = (Person)list.get(i);
			String name = p.getUsername();
			if(name.equals(username)){
				equal = true;
				break;
			}
		}
		if(equal){
			response.getOutputStream().print("true");
		}else{
			response.getOutputStream().print("false");
		}
	}

	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServerException, IOException {
		doPost(request, response);
	}
}