对象数据绑定是指将JSON映射到任何JAVA对象。
//Create a Gson instance
Gson gson = new Gson();
//map Student object to JSON content
String jsonString = gson.toJson(student);
//map JSON content to Student object
Student student1 = gson.fromJson(jsonString, Student.class);
示例
让我们看看对象数据绑定的行动。 这里将JAVA对象直接映射到JSON,反之亦然。参考实现代码:GsonTester.java -
import com.google.gson.Gson;
public class GsonTester {
public static void main(String args[]) {
Gson gson = new Gson();
Student student = new Student();
student.setAge(26);
student.setName("Maxsu");
String jsonString = gson.toJson(student);
System.out.println(jsonString);
Student student1 = gson.fromJson(jsonString, Student.class);
System.out.println(student1);
}
}
class Student {
private String name;
private int age;
public Student(){}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public String toString() {
return "Student [ name: "+name+", age: "+ age+ " ]";
}
}
执行上面示例代码,得到以下结果 -
{"name":"Maxsu","age":26}
Student [ name: Maxsu, age: 26 ]