1.java objects into a JSON array
Jsonarray Array=jsonarray.fromobject (Javaobject);
Convert Array to string: String jsonstr=array.tostring ();
2.java objects into JSON objects
Jsonobject Jsonobject=jsonobject.fromobject (Javaobject);
Turn Jsonobject into a string: jsonobject.tostring ();
3.Json string into a Java object array
String personstr=getrequest (). GetParameter ("Personstr");
Jsonarray Json=jsonarray.fromobject (PERSONSTR);
List<person> persons= (list<person>) jsonarray.tocollection (Json,person.class);
4.Json string converted to Java object
Jsonobject jsonobject = Jsonobject.fromobject (str);
Passportlendsentity passportlends = null;
try {
Get a JSON array
Jsonarray array = Jsonobject.getjsonarray ("passports");
Convert JSON arrays to list<passportforlendsentity> generics
list<passportforlendsentity> list = new arraylist<passportforlendsentity> ();
for (int i = 0; i < array.size (); i++) {
Jsonobject object = (jsonobject) array.get (i);
Passportforlendsentity Passport = (passportforlendsentity) Jsonobject.tobean (object,
Passportforlendsentity.class);
if (passport! = null) {
List.add (Passport);
}
}
Convert passportlendsentity entity class
Passportlends = (passportlendsentity) Jsonobject.tobean (Jsonobject, Passportlendsentity.class);
str = "{\" lendperson\ ": \" John Doe \ ", \" lendcompany\ ": \" limited \ ", \" checkperson\ ": \" John Doe \ ",
\ "lenddate\": \ "2010-07-19t00:00:00\", \ "lendcounts\": 4,\ "
Passports\ ": [{\" passportid\ ": \" d\ ", \" name\ ": \" Li Shuichang \ ", \" passporttype\ ": \" K\ "},
{\ "passportid\": \ "k9051\", \ "name\": \ "Li ping \", \ "passporttype\": \ "K\"},
{\ "passportid\": \ "k90517\", \ "name\": \ "Yuan Han mei \", \ "passporttype\": \ "K\"},
{\ "passportid\": \ "k905199\", \ "name\": \ "He Ming \", \ "passporttype\": \ "K\"}]} ";
Common scenarios for converting Java object JSON data to each other