合并(Concat)Java中的多个JSONObjects [英] Merge (Concat) Multiple JSONObjects in Java

问题描述

我从两个不同的来源消费了一些JSON，最后得到两个JSONObject，我想将它们组合为一个.

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",
}

使用 http://json.org/java/库的代码:

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

因此，在这种情况下，我想将Obj1和Obj2组合在一起，以创建全新的JSONObject或彼此连接.除了将它们拉开并按put s分别添加之外，还有其他想法吗?

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

如果您想要一个带有两个键Object1和Object2的新对象，则可以执行以下操作:

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);

如果您要合并它们，例如顶层对象有5个键(Stringkey1，ArrayKey，StringKey2，StringKey3，StringKey4)，我认为您必须手动执行以下操作:

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实现地图，并支持putAll.

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

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