serviceservlet.java

基于j2ee的物流软件

package com.wuliu.servlet;

import java.io.IOException;

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

import com.wuliu.doservlet.Service;
import com.wuliu.doservlet.ServiceManager;

public class ServiceServlet extends HttpServlet
{
	private ServletContext ctx;

	@Override
	public void init()
	{
		ServiceManager manager = ServiceManager.getInstance();
		manager.init();
	}

	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException
	{
		this.doService(request, response);
	}

	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException
	{
		this.doService(request, response);
	}

	private void doService(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException
	{
		String path = request.getServletPath();
		// 进行路径处理
		int local = path.indexOf(".");
		path = path.substring(1, local);
		ServiceManager manager = ServiceManager.getInstance();
		if (!manager.containsKey(path))
		{
			throw new RuntimeException("本系统不支持该功能");
		}
		Service service = manager.get(path);
		//
		String result = service.doService(request, response);
		//System.out.println(result);
		if(result != null){
			request.getRequestDispatcher(result).forward(request, response);
		}
	}
}