私は FlexJson を初めて使用し、簡単なチュートリアルのためにhttp://flexjson.sourceforge.net/をフォローしていました。
簡単なプログラムを書きましたが、オブジェクトの属性をシリアライズしていないようです。誰かがこれについて知っているなら、私を助けてください
package com.webapp.enter;
import flexjson.JSONSerializer;
class PObject {
String name;
int age;
String country;
public PObject (String n, int a , String c){
this.name = n;
this.country = c;
this.age = a;
}
public String toString(){
return this.name + this.age + this.country;
}
public String[] getData(){
return new String[]{ this.name, this.country};
}
}
public class Person{
public static void main(String main[]){
PObject person = new PObject("harit",23,"india");
System.out.println(person.name + " - " + person.age + " - " + person.country);
JSONSerializer serializer = new JSONSerializer();
String out = serializer.serialize(person);
System.out.println("S : " + out);
}
}
出力:
init:
deps-module-jar:
deps-ear-jar:
deps-jar:
compile-single:
run-main:
harit - 23 - india
S : {"class":"com.webapp.enter.PObject"}
BUILD SUCCESSFUL (total time: 0 seconds)
(削除された回答からの更新):
getter/setter メソッドを使用してコードを変更しようとしましたが、次のように言って失敗しました。初心者なので間違っていたらごめんなさい
package com.webapp.enter;
import flexjson.JSONSerializer;
class PObject {
String name;
int age;
String country;
public PObject (){
}
public void setName(String name){
this.name = name;
}
public void setAge(int age){
this.age = age;
}
public void setCountry(String country){
this.country = country;
}
public String getName(){
return this.name;
}
public int getAge(){
return this.age;
}
public String getCountry(){
return this.country;
}
}
public class Person{
public static void main(String main[]){
PObject person = new PObject();
person.setAge(23);
person.setCountry("usa");
person.setName("test");
System.out.println(person.name + " - " + person.age + " - " + person.country);
JSONSerializer serializer = new JSONSerializer();
String out = serializer.serialize(person);
System.out.println("S : " + out);
}
}
出力:
test - 23 - usa
Exception in thread "main" flexjson.JSONException: Error trying to deepSerialize
at flexjson.transformer.ObjectTransformer.transform(ObjectTransformer.java:97)
at flexjson.transformer.TransformerWrapper.transform(TransformerWrapper.java:22)
at flexjson.JSONContext.transform(JSONContext.java:75)
at flexjson.JSONSerializer.serialize(JSONSerializer.java:378)
at flexjson.JSONSerializer.deepSerialize(JSONSerializer.java:301)
at com.webapp.enter.Person.main(Person.java:60)
Caused by: java.lang.IllegalAccessException: Class flexjson.transformer.ObjectTransformer can not access a member of class com.webapp.enter.PObject with modifiers "public"
at sun.reflect.Reflection.ensureMemberAccess(Reflection.java:95)
at java.lang.reflect.Method.invoke(Method.java:607)
at flexjson.transformer.ObjectTransformer.transform(ObjectTransformer.java:45)
... 5 more
Java Result: 1
BUILD SUCCESSFUL (total time: 0 seconds)