I have a problem I do not know how to convert the List<document> to json:
public static List<Document> d() {
conexion c = new conexion();
List<Document> resultados = new ArrayList<>();
for (Document cur : c.table.find()){
resultados.add(cur);
}
return resultados;
}
There is an easier way according to the mongo documentation here
public static List<String> d() {
conexion c = new conexion();
List<String> resultados = new ArrayList<>();
for (Document cur : c.table.find()){
resultados.add(cur.toJson());
//contiene un error en la sintaxis System.out.println("toda la collection"+.find());
}
return resultados;
}
so you can directly get a complete list of json's for you to use, with the method toJson() you convert the table objects into json. at the end what you get is a string (" String ") with json
as an additional here there is a similar question in English
To convert a Document to Json, we use the method toJson () that gets a Json representation of Document
To obtain all the tables in the document, this is done as follows:
List<String> resultados = new ArrayList<String>();
for (Document cur : c.table.find()){
resultados.add(cur.toJson());
}
You can also use a BasicDBList to save it and get the Json of the entire collection by JSON.serialize() :
MongoCursor<Document> iterator = c.table.find().iterator();
BasicDBList list = new BasicDBList();
while (iterator.hasNext()) {
Document doc = iterator.next();
list.add(doc);
}
System.out.println(JSON.serialize(list));