BaseServlet方法分发

BaseServlet.java

package org.guangsoft.controller;

import java.io.IOException;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

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

public class BaseServlet extends HttpServlet
{
    /**
     * 将请求方法到不同的servlet中的不同方法
     */
    @Override
    protected void service(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException
    {
        request.setCharacterEncoding("UTF-8");
        response.setCharacterEncoding("UTF-8");
        response.setContentType("text/html; charset=utf-8");
        try
        {
            //获取调用的方法名
            String option = request.getParameter("option");
            //获取真实调用的servlet字节码文件
            Class clazz = this.getClass();
            //获取调用的方法
            Method method = clazz.getDeclaredMethod(option, HttpServletRequest.class,HttpServletResponse.class);
            //执行调用的方法
            method.invoke(this, request, response);
        }
        catch (Exception e)
        {
            e.printStackTrace();
        }
    }
}