java Servlet 反射实现父类 BaseServelt

package com.lmlm.dbutils;

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

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
// Servlet 里面的类直接继承这个类
public class BaseServlet extends HttpServlet {

	@Override
	protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        
		req.setCharacterEncoding("utf-8");
		// 获访问的方法名
		String method = req.getParameter("method");
		// 获取调用对象字节码文件
		Class<? extends BaseServlet> claz = this.getClass();
		try {
			// 获取方法
			Method method2 = claz.getMethod(method, HttpServletRequest.class, HttpServletResponse.class);
			// 调用方法
			method2.invoke(claz.newInstance(), req, resp);
		} catch (Exception e) {

			e.printStackTrace();
		}

	}

}