JSON入门Java篇-5-用JavaBean来构建JSON

        前面我们介绍用JSONObject和HashMap来构造JSON数据，其实实际项目开发中，可能更多利用JavaBean来构造JSON。简单来说，JavaBean是可复用的平台独立的软件组件，也就是说复用性很高。

1.打开eclipse，新建两个包

2.JavaBean类内容如下

package bean;/** * @author Administrator * */public class DiaoSi {private String name;private String school;private boolean has_girlfriend;private double age;private Object car;private Object hourse;private String[] major;private String birthday;public String getName() {return name;}public void setName(String name) {this.name = name;}public String getSchool() {return school;}public void setSchool(String school) {this.school = school;}public boolean isHas_girlfriend() {return has_girlfriend;}public void setHas_girlfriend(boolean has_girlfriend) {this.has_girlfriend = has_girlfriend;}public double getAge() {return age;}public void setAge(double age) {this.age = age;}public Object getCar() {return car;}public void setCar(Object car) {this.car = car;}public Object getHourse() {return hourse;}public void setHourse(Object hourse) {this.hourse = hourse;}public String[] getMajor() {return major;}public void setMajor(String[] major) {this.major = major;}public String getBirthday() {return birthday;}public void setBirthday(String birthday) {this.birthday = birthday;}}

        这里有一个快捷方式生成get和set方法，在新建好了全部private变量之后，点击Eclipse中的Source，点击点击Generate Getters and Setters，然后勾选全部，就快速帮你创建好了set和get方法，建议你添加一下方法备注，这里我没添加。

3.测试类的写法

package json;import org.json.JSONObject;import bean.DiaoSi;public class Demo1 {public static void main(String[] args){createJsonByMap();}public static void createJsonByMap(){DiaoSi zhangsan = new DiaoSi();zhangsan.setAge(25.2);zhangsan.setBirthday("1991-08-23");zhangsan.setCar(null);zhangsan.setHas_girlfriend(false);zhangsan.setHourse(null);zhangsan.setMajor(new String[]{"理发师", "挖掘机"});zhangsan.setName("张三");zhangsan.setSchool("蓝翔技校");                System.out.println(new JSONObject(zhangsan).toString());}}

       输出结果和前面文章是一样，三种方法，对照起来，看起来都差不多，当然都使用了JSONObject对象或者JSONObject的构造函数，但是，建议用JavaBean的方法来构造JSON,达到复用的目的。