javaweb中文乱码

javaweb解决中文乱码问题

public class RegisterServlet extends HttpServlet {
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        //以下三行代码解决中文乱码问题
        request.setCharacterEncoding("utf-8");
        response.setContentType("text/html;charset=utf-8");
        response.setCharacterEncoding("utf-8");

        //第二种方式：全部一次获取
        Map map = request.getParameterMap();
        //遍历集合
        map.forEach((s,ss)-> System.out.println(s+"-------------"+ss[0]));