JSON对比工具介绍（含单元测试对比，接口API响应对比【忽略指定噪声字段key】）

根据具体场景使用，下述两个比较成熟和方便的工具类。

1，对于单元测试对比JSON：
https://github.com/skyscreamer/JSONassert
In JSONassert you write and maintain something like this:

JSONObject data = getRESTData("/friends/367.json");
String expected = "{friends:[{id:123,name:\"Corby Page\"},{id:456,name:\"Carter Page\"}]}";
JSONAssert.assertEquals(expected, data, false);
instead of all this:

替代下述这么多行：
JSONObject data = getRESTData("/friends/367.json");
Assert.assertTrue(data.has("friends"));
Object friendsObject = data.get("friends");
Assert.assertTrue(friendsObject instanceof JSONArray);
JSONArray friends = (JSONArray) friendsObject;
Assert.assertEquals(2, data.length());
JSONObject friend1Obj = friends.getJSONObject(data.get(0));
Assert.true(friend1Obj.has("id"));
Assert.true(friend1Obj.has("name"));
JSONObject friend2Obj = friends.getJSONObject(data.get(1));
Assert.true(friend2Obj.has("id"));
Assert.true(friend2Obj.has("name"));
if ("Carter Page".equals(friend1Obj.getString("name"))) {
    Assert.assertEquals(123, friend1Obj.getInt("id"));
    Assert.assertEquals("Corby Page", friend2Obj.getString("name"));
    Assert.assertEquals(456, friend2Obj.getInt("id"));
}
else if ("Corby Page".equals(friend1Obj.getString("name"))) {