利用idea实现密码的输入
首先我们要先新建一个页面用于输入账号密码
req.setCharacterEncoding("UTF-8");String LoginName=req.getParameter("LoginName");String LoginPwd=req.getParameter("LoginPwd");String msg="请输入密码";private void showMsg(HttpServletResponse resp,String msg) throws IOException {resp .setCharacterEncoding("UTF-8");StringBuilder stringBuilder =new StringBuilder() ;stringBuilder .append("<html>");stringBuilder .append("<header>");stringBuilder .append("<title>Test</title>");stringBuilder .append("<meta http-equiv=\"Content-Type\" content=\"text/html;charset=utf-8\">");stringBuilder .append("</header>");stringBuilder .append("<body>");stringBuilder .append(msg);stringBuilder .append("</body>");stringBuilder .append("</html>");PrintWriter out=resp.getWriter();out.println(stringBuilder.toString() );out.close();
在这里插入代码片
这就是登录的页面效果如下图
而后我们需要进行身份的认证
if ("3187102433".equals(LoginName) && "1234".equals(LoginPwd)) {msg = "你好" + LoginName;}else {msg ="密码错误";}showMsg(resp,msg);}
用代码实现对于身份的认证
验证成功则会出现你好+用户名
而密码错误页面则会提示密码错误
![[OS-Linux] CentOS 7.x 安全登录策略设置](https://img-blog.csdnimg.cn/b7cac2b84efe4ab6a20cbec70534cf81.png)
