05-解决请求乱码问题，tomcat服务器

package com.resquest;

import javax.servlet.ServletException;

import javax.servlet.annotation.WebServlet;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import java.io.IOException;

@WebServlet("/ser02")

public class servlet02 extends HttpServlet {

    @Override

    protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {

        System.out.println("解决乱码问题");

        //解决 post 乱码问题

        req.setCharacterEncoding("UTF-8");

        String name = req.getParameter("name");

        String psd = req.getParameter("psd");

        System.out.println("name"+name+"psd"+psd);

    }

    /* 解决乱码 问题

        tomcat 8          tomcat 7

get 方法 不会乱码            会出现乱码

                            new String(req.getParameter(name).getBytes("ISO-8859-1"),"UTF_8")

                            针对任意请求方式，但是如果不乱码，使用后就会出现乱码

post 方法 会乱码             会乱码

        req.setCharacterEncoding("UTF-8");

     */

}