public class ObjectAndJson {
public static void main(String[] args) {
// 1、java对象转JSON
Student student = new Student("张三", 18);
Object studentJson = JSONObject.toJSON(student);
System.out.println("student对象转json后:" + studentJson);
// 2、java对象转JSONstring
String stringJSON = JSON.toJSONString(student);
System.out.println("student对象转jsonString后:" + studentJson);
// 3、json转java对象
JSONObject jsonObject = new JSONObject();
jsonObject.put("name", "李四");
jsonObject.put("age", 19);
Student stu = JSONObject.parseObject(String.valueOf(jsonObject), Student.class);
System.out.println("Json转为java对象后:" + stu.toString());
}
}
class Student {
private String name;
private Integer age;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Integer getAge() {
return age;
}
public void setAge(Integer age) {
this.age = age;
}
Student(String name, Integer age) {
this.name = name;
this.age = age;
}
@Override
public String toString() {
return "Student{" +
"name='" + name + '\'' +
", age=" + age +
'}';
}
public Student() {
}
}
运行结果 如下:
student对象转json后:{
"name":"张三","age":18}
student对象转jsonString后:{
"name":"张三","age":18}
Json转为java对象后:Student{
name='李四', age=19}