Define a JavaBean (JavaBean is actually a simple java class)
Javac-d./UserBean. java generate package file
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Package com. javaweb. ch07;
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// A simple JavaBean example
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Public class UserBean {
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// User name attributes
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Private String username;
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// User Password attributes
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Private String password;
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// Obtain the user name
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Public String getUsername (){
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Return username;
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}
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// Set the user name
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Public void setUsername (String username ){
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This. username = username;
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}
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// Obtain the User Password
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Public String getPassword (){
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Return password;
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}
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// Set the user's password
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Public void setPassword (String password ){
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This. password = password;
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}
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}
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<% @ Page language = "java" contentType = "text/html; charset = gb2312" %>
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<! DOCTYPE html>
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<Html>
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<Head>
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<Title> call JavaBean </title>
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</Head>
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<Body>
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<% -- Call JavaBean through the JavaBean Action Command -- %>
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<Jsp: useBean id = "user" scope = "page" class = "com. javaweb. ch07.UserBean"> </jsp: useBean>
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<%
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// Set the username attribute of the user
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User. setUsername ("zhangdapeng ");
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// Set the password attribute of the user
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User. setPassword ("zhangda890126 ;;");
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// Print the username of the output user
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Out. println ("username:" + user. getUsername () + "<br/> ");
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// Print the output user password
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Out. println ("user Password:" + user. getPassword () + "<br/> ");
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%>
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<%
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Try {
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Class. forName ("com. mysql. jdbc. Driver"); // load the JDBC Driver
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} Catch (ClassNotFoundException e ){
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Out. println ("unable to find the driver class"); // when an exception is thrown, a message is displayed.
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}
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%>
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</Body>
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</Html>
The generated class must be placed under the WEB-INF's classes folder under the directory of your project, if not, create your own
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