[英]Parsing Complex Json with Gson Java - Only nodes
I have this Json structure and I need to get the information for "myId", "name", "adress1" and "city". 我有这个Json结构,我需要获取有关“ myId”,“名称”,“ adress1”和“ city”的信息。
{
"InformationResponse":{
"Id":"122212",
"customerSessionId":"007",
"Summary":{
"myId":1234567,
"name":"Casino",
"address1":"13 Street",
"city":"Las Vegas",
},
...
I am using Gson (Java). 我正在使用Gson(Java)。 I created 3 Class (InformationResponse, Summary and Main)
我创建了3个类(InformationResponse,Summary和Main)
public class Summary {
private String myId;
private String name;
private String city;
public String getMyId() {
return myId;
}
public void setMyId(String myId) {
this.myId= myId;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getCity() {
return city;
}
public void setCity(String city) {
this.city = city;
}
@Override
public String toString(){
return getMyId() + ", "+getName()+", "+getCity();
}
}
MyObject.class MyObject.class
public class MyObject{
private Summary summary;
public Summary getSummary() {
return address;
}
@Override
public String toString(){
sb.append("Summary="+getSummary()+"\n");
return sb.toString();
}
}
In the Main I can see my Json file and I am doing this: 在Main中,我可以看到我的Json文件,而我正在这样做:
// Get Gson object
Gson gson = new GsonBuilder().setPrettyPrinting().create();
// parse json string to object
MyObject myobject1 = gson.fromJson(json, MyObject.class);
But I have null everytime. 但是我每次都是空的。
Thanks for your help! 谢谢你的帮助!
Jean M. 让·M
试试这个@SerializedName(“ Id”)private String myId;
Gson requires a default no args constructor: Gson需要默认的no args构造函数:
https://sites.google.com/site/gson/gson-user-guide#TOC-Object-Examples https://sites.google.com/site/gson/gson-user-guide#TOC-Object-Examples
Try adding a public no-args constructor to both your Summary and MyObject classes. 尝试将公共的无参数构造函数添加到您的Summary和MyObject类。
public Summary() {}
public MyObject() {}
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