JavaBean的介绍

JavaBean是用Java开发的可以跨平台的可重用组件，在Web程序中常用来封装业务逻辑和进行数据库操作。
在程序开发中，程序员所要处理的无非是业务逻辑和数据，而这两种操作都要用到JavaBean，因此JavaBean很重要。
JavaBean实际上就是一个Java类，这个类可以重用，javaBean从功能上说可以分为以下两类：
1. 封装数据
2. 封装业务

JavaBean一般满足以下要求
* 是一个公有类，并提供无参的公有的构造方法
* 属性私有
* 具有公共的getter和setter方法

package com.kjxy.domain;

public class Student {
    private int id;
    private String name;
    private String gender;
    private int age;
    private String address;
    private String qq;
    private String email;

    public Student() {
    }

    public Student(int id, String name, String gender, int age, String address, String qq, String email) {
        this.id = id;
        this.name = name;
        this.gender = gender;
        this.age = age;
        this.address = address;
        this.qq = qq;
        this.email = email;
    }

    @Override
    public String toString() {
        return "Student{" +
                "id=" + id +
                ", name='" + name + '\'' +
                ", gender='" + gender + '\'' +
                ", age=" + age +
                ", address='" + address + '\'' +
                ", qq='" + qq + '\'' +
                ", email='" + email + '\'' +
                '}';
    }

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getGender() {
        return gender;
    }

    public void setGender(String gender) {
        this.gender = gender;
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }

    public String getAddress() {
        return address;
    }

    public void setAddress(String address) {
        this.address = address;
    }

    public String getQq() {
        return qq;
    }

    public void setQq(String qq) {
        this.qq = qq;
    }

    public String getEmail() {
        return email;
    }

    public void setEmail(String email) {
        this.email = email;
    }
}




package com.kjxy.domain;

import java.util.List;

public class PageBean<T> {
    private int totalCount;//总记录数
    private int totalPage;//总页数
    private List<T> list;//每页的数据
    private int currentPage;//当前页码
    private int rows;//每页的记录数



    public PageBean() {
    }

    @Override
    public String toString() {
        return "PageBean{" +
                "totalCount=" + totalCount +
                ", totalPage=" + totalPage +
                ", list=" + list +
                ", currentPage=" + currentPage +
                ", rows=" + rows +
                '}';
    }

    public int getTotalCount() {
        return totalCount;
    }

    public void setTotalCount(int totalCount) {
        this.totalCount = totalCount;
    }

    public int getTotalPage() {
        return totalPage;
    }

    public void setTotalPage(int totalPage) {
        this.totalPage = totalPage;
    }

    public List<T> getList() {
        return list;
    }

    public void setList(List<T> list) {
        this.list = list;
    }

    public int getCurrentPage() {
        return currentPage;
    }

    public void setCurrentPage(int currentPage) {
        this.currentPage = currentPage;
    }

    public int getRows() {
        return rows;
    }

    public void setRows(int rows) {
        this.rows = rows;
    }
}