Gson如何实现序列化内部类？针对这个问题，这篇文章详细介绍了相对应的分析和解答，希望可以帮助更多想解决这个问题的小伙伴找到更简单易行的方法。
1 Gson处理成员内部类
1.1 编写核心类
MainApp：
package com.yiidian.gson;
import com.google.gson.Gson;
public class MainApp {
public static void main(String args[]) {
Student student = new Student();
student.setRollNo(1);
Student.Name name = student.new Name();
name.firstName = "Mahesh";
name.lastName = "Kumar";
student.setName(name);
Gson gson = new Gson();
//序列化
String jsonString = gson.toJson(student);
System.out.println(jsonString);
//反序列化
student = gson.fromJson(jsonString, Student.class);
System.out.println("Roll No: "+ student.getRollNo());
System.out.println("First Name: "+ student.getName().firstName);
System.out.println("Last Name: "+ student.getName().lastName);
String nameString = gson.toJson(name);
System.out.println(nameString);
name = gson.fromJson(nameString,Student.Name.class);
System.out.println(name.getClass());
System.out.println("First Name: "+ name.firstName);
System.out.println("Last Name: "+ name.lastName);
}
}
class Student {
private int rollNo;
private Name name;
public int getRollNo() {
return rollNo;
}
public void setRollNo(int rollNo) {
this.rollNo = rollNo;
}
public Name getName() {
return name;
}
public void setName(Name name) {
this.name = name;
}
//成员内部类
class Name {
public String firstName;
public String lastName;
}
}1.2 运行测试
2 Gson处理静态内部类
2.1 编写核心类
MainApp：
package com.yiidian.gson;
import com.google.gson.Gson;
public class MainApp {
public static void main(String args[]) {
Student student = new Student();
student.setRollNo(1);
Student.Name name = new Student.Name();
name.firstName = "Mahesh";
name.lastName = "Kumar";
student.setName(name);
Gson gson = new Gson();
String jsonString = gson.toJson(student);
System.out.println(jsonString);
student = gson.fromJson(jsonString, Student.class);
System.out.println("Roll No: "+ student.getRollNo());
System.out.println("First Name: "+ student.getName().firstName);
System.out.println("Last Name: "+ student.getName().lastName);
String nameString = gson.toJson(name);
System.out.println(nameString);
name = gson.fromJson(nameString,Student.Name.class);
System.out.println(name.getClass());
System.out.println("First Name: "+ name.firstName);
System.out.println("Last Name: "+ name.lastName);
}
}
class Student {
private int rollNo;
private Name name;
public int getRollNo() {
return rollNo;
}
public void setRollNo(int rollNo) {
this.rollNo = rollNo;
}
public Name getName() {
return name;
}
public void setName(Name name) {
this.name = name;
}
//静态内部类
static class Name {
public String firstName;
public String lastName;
}
}2.2 运行测试
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