例如：
1、jsp表单域：
请输入您的用户名:
请输入您的年龄:
请输入您的地址:
2、javabean：
packagejavabean;
publicclassloginBean{
privateStringname;
privateintage;
privateStringaddress;
publicStringgetAddress(){
returnaddress;
}
publicvoidsetAddress(Stringaddress){
this.address=address;
}
publicintgetAge(){
returnage;
}
publicvoidsetAge(intage){
this.age=age;
}
publicStringgetName(){
returnname;
}
publicvoidsetName(Stringname){
this.name=name;
}
}
3、servlet处理封装
loginBeanlogin=newloginBean();
login.setName(request.getParameter("name"));
login.setAge(Integer.parseInt(request.getParameter("age")));
login.setAddress("xxxxxxx");
