companyservlet.java

一个公司管理系统,用简单的htmlt要servlet做的,有增.查.改功能.适合同学学习交流.

package com.tarena.servlet;

import java.io.IOException;

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

import com.tarena.servlet.action.Action;
import com.tarena.servlet.action.AddCompanyAction;
import com.tarena.servlet.action.DeleteCompanyAction;
import com.tarena.servlet.action.ListCompaniesAction;
import com.tarena.servlet.action.ModifyCompanyAction;
import com.tarena.servlet.action.QueryCompanyAction;
import com.tarena.servlet.action.UpdateCompanyAction;
/**
 * 
 * @author dong xuyuan
 *
 */
public class CompanyServlet extends HttpServlet {

	@Override
	protected void doGet(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException {
		doPost(request, response);
	}

	@Override
	protected void doPost(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException {
		String act = request.getParameter("action");
		
		if(act.equals("add")) {
			
			Action action = new AddCompanyAction();
			String forward = action.execute(request, response);
			RequestDispatcher rd = request.getRequestDispatcher(forward);
			rd.forward(request, response);
			
		} else if(act.equals("list")) {
			
			Action action = new ListCompaniesAction();
			action.execute(request, response);
			
		} else if(act.equals("delete")) {
			
			Action action = new DeleteCompanyAction();
			String forward = action.execute(request, response);
			RequestDispatcher rd = request.getRequestDispatcher(forward);
			rd.forward(request, response);
			
		} else if(act.equals("update")) {
			
			Action action = new UpdateCompanyAction();
			String forward = action.execute(request, response);
			RequestDispatcher rd = request.getRequestDispatcher(forward);
			rd.forward(request, response);
			
		} else if(act.equals("query")) {
			
			Action action = new QueryCompanyAction();
			action.execute(request, response);
			
		} else if(act.equals("modify")) {
			
			Action action = new ModifyCompanyAction();
			action.execute(request, response);
		}
	}

}