合并（Concat）多个JSONObjects [英] Merge (Concat) Multiple JSONObjects

问题描述

我从两个不同的来源消耗了一些JSON，我最终得到了两个 JSONObject ，我想将它们组合成一个。

I am consuming some JSON from two different sources, I end up with two JSONObjects and I'd like to combine them into one.

数据：

"Object1": {
    "Stringkey":"StringVal",
    "ArrayKey": [Data0, Data1]
}

"Object2": {
    "Stringkey":"StringVal",
    "Stringkey":"StringVal",
    "Stringkey":"StringVal",
}

代码，使用 http://json.org/java/ 库：

// jso1 and jso2 are some JSONObjects already instantiated
JSONObject Obj1 = (JSONObject) jso.get("Object1");
JSONObject Obj2 = (JSONObject) jso.get("Object2");

所以在这种情况下我想组合 Obj1 和 Obj2 ，要么创建一个全新的 JSONObject ，要么将其连接到另一个。任何想法，除了把它们分开并单独加入把 s？

So in this situation I'd like to combine Obj1 and Obj2, either to make a totally new JSONObject or concat one to the other. Any ideas besides pulling them all apart and individually adding in by puts?

推荐答案

如果你想要一个带有两个键Object1和Object2的新对象，你可以这样做：

If you want a new object with two keys, Object1 and Object2, you can do:

JSONObject Obj1 = (JSONObject) jso1.get("Object1");
JSONObject Obj2 = (JSONObject) jso2.get("Object2");
JSONObject combined = new JSONObject();
combined.put("Object1", Obj1);
combined.put("Object2", Obj2);

如果要合并它们，例如顶级对象有5个键（Stringkey1，ArrayKey，StringKey2，StringKey3，StringKey4），我想你必须手动完成：

If you want to merge them, so e.g. a top level object has 5 keys (Stringkey1, ArrayKey, StringKey2, StringKey3, StringKey4), I think you have to do that manually:

JSONObject merged = new JSONObject(Obj1, JSONObject.getNames(Obj1));
for(String key : JSONObject.getNames(Obj2))
{
  merged.put(key, Obj2.get(key));
}

如果JSONObject实现了地图，支持putAll。

This would be a lot easier if JSONObject implemented Map, and supported putAll.

这篇关于合并（Concat）多个JSONObjects的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！