Servlet框架

package com.vibexie.jianaiServer.register;

import java.io.BufferedOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.io.PrintWriter;

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

/**
 * Servlet implementation class RegisterServlet
 */
@WebServlet("/RegisterServlet")
public class RegisterServlet extends HttpServlet {
private static final long serialVersionUID = 1L;

    /**
     * servlet初始化的相关设置
     */
    @Override
    public void init() throws ServletException {
        super.init();
        System.out.println("RegisterServlet启动成功");
    }

    /**
     * 以get方式访问页面时会先执行此函数，如果浏览器发现getLastModified返回的数值和上次的一样,则不执行doget()，如果getLastModified返回-1,则认为是总是更新的
     */
    @Override
    protected long getLastModified(HttpServletRequest req) {
        return super.getLastModified(req);
    }

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

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

    /**
     * get和post共同的执行
     * @param request
     * @param response
     * @throws ServletException
     * @throws IOException
     */
    private void execute(HttpServletRequest request,HttpServletResponse response) throws ServletException, IOException{
        /**
         * 设置request和response的字符编码
         */
        request.setCharacterEncoding("UTF-8");
        response.setCharacterEncoding("UTF-8");
        response.setContentType("text/html;charset=utf-8");

        /**
         * 回写流
         */
        OutputStream outputStream=response.getOutputStream();

        String userName=request.getParameter("userName");
        String email=request.getParameter("email");


        outputStream.close();
    }
}