"Javaweb" study notes six JavaBeans

I. JavaBeans design principles

There is a User.java class

/** User Class*/Package Com.po; Public classuser{PrivateString username; PrivateString password;  PublicUser () {} PublicString GetUserName () {returnusername; }     Public voidSetusername (String username) { This. Username =username; }     PublicString GetPassword () {returnpassword; }     Public voidSetPassword (String password) { This. Password =password; }    }

View Code

Traditional methods of development:

//Introducing Class<%@ page import="Com.po.User"%>//instantiation of<%User User=NewUser (); User.setusername ("Amdin"); User.setpassword ("123");%>//Get<div> Username: <%=user.getusername ()%></div><div> Password: <%=user.getpassword ()%></div >

Two .<jsp:usebean>

// Use the action Usebean<jsp:usebean id="user"class="  Com.po.User" /><div> user name: <%=user.getusername ()%></div><div> Password: <%= User.getpassword ()%></div>

"Javaweb" study notes six JavaBeans