Question

我想改变＆＃34; cadena.toString（）＆＃34;通过String的值并执行最后一行。

    Map<String, String> config = new HashMap<String, String>();
    JsonBuilderFactory factory = Json.createBuilderFactory(config);

    JsonObject value = null ;
    StringBuffer cadena = new StringBuffer("");

    for(Friendship f: listFriends){ 
          cadena.append( ".add( \"From: "+f.getUser_from().getLogin()+"\",\"To: "+ f.getUser_to().getLogin()+"\")");
     }

     value = factory.createObjectBuilder().cadena.toString().build();

可能吗？

非常感谢所有人，抱歉我的英语不好。

Answer 1

No. Your first clue should be that factory.createObjectBuilder().cadena (probably) won't even compile.

Why can't you do something like this?

(note: replace Builder with the correct object type of factory.createObjectBuilder() return value)

Builder b = factory.createObjectBuilder();
for(Friendship f: listFriends){ 
      b.add("From: "+f.getUser_from().getLogin()+", To: "+ f.getUser_to().getLogin());
}
value = b.build();

执行存储在String中的函数。 Java的

1 个答案: