After successful JSP login, the login user name is displayed

First, save the user name on the login interface. Here, I submit the user name to the servlet and then save it,

// Obtain the USER parameter string uname = request from the logon interface. getparameter ("username"); Request. getsession (). setattribute ("username", uname); // Save the user name throughout the session

Then, you can obtain and display it where you want to display it,

<% String username = request. getsession (). getattribute ("username"). tostring (); %> hello, <% = username %>