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我有一个自定义对象的ArrayList。每个这些对象都有另一个自定义对象的数组列表。然后这些自定义对象的第二级具有另一个自定义对象的阵列列表。将自定义对象的ArrayList转换为JSON
这是类层次的样子
public class Undle {
private String undleStatus;
private ArrayList<ArcelFolder> arcelFolders;
public ArrayList<ArcelFolder> getArcelFolders() {
return arcelFolders;
}
public void setArcelFolders(ArrayList<ArcelFolder> arcelFolders) {
this.arcelFolders = arcelFolders;
}
//Other getter and setters
}
public class ArcelFolder {
private ArrayList<ArcelDocument> arcelDocuments;
private String arcelStatus;
public String getArcelStatus() {
return arcelStatus;
}
public void setArcelStatus(String arcelStatus) {
this.arcelStatus = arcelStatus;
}
public ArrayList<ArcelDocument> getArcelDocuments() {
return arcelDocuments;
}
public void setArcelDocuments(ArrayList<ArcelDocument> arcelDocuments) {
this.arcelDocuments = arcelDocuments;
}
}
public class ArcelDocument {
private String gain;
public String getGain() {
return gain;
}
public void setGain(String gain) {
this.gain = gain;
}
}
我有Undle的ArrayList对象
ArrayList<Undle> undleList = new ArrayList<Undle>();
// Create objects of ArcelFolder and ArcelDocument
// Add ArcelDocument list to ArcelFolder
// Add ArcelFolder list to Undle arraylist
我想Undle的ArrayList转换成JSON。我怎样才能将这种Bean的层次结构扁平化并将其放入JSON中?
我试着做一些像
org.json.simple.JSONObject resultObj = new JSONObject(undleList);
和
org.json.simple.JSONArray arr = new JSONArray(undleList);
但似乎他们一个字符串的ArrayList只传递工作。
试试这个:https://github.com/google/gson – Riad
这将是有用的知道为什么问题已被downvoted – swati