How to compare two JSON Strings for equality using GSON?

问题

I am trying to compare two JSON Strings for equality. I found this solution which uses Jackson as shown below but in all my project I am using GSON so I need to do the same thing using GSON.

ObjectMapper mapper = new ObjectMapper();
JsonNode tree1 = mapper.readTree(jsonString1);
JsonNode tree2 = mapper.readTree(jsonString2);
if (tree1.equals(tree2)) { 
  // yes, contents are equal -- note, ordering of arrays matters, objects not
} else { 
  // not equal
}

Is there any way to compare two JSON String for equality using GSON?

回答1:

According to this answer you could use this:

JsonParser parser = new JsonParser();
JsonElement o1 = parser.parse("{a : {a : 2}, b : 2}");
JsonElement o2 = parser.parse("{b : 2, a : {a : 2}}");
assertEquals(o1, o2);

Unfortunately I'm guessing this isn't quite as clean as you were hoping, but it should work.

In any case it might be helpful to look through the other answers in that thread (although not all use GSON), so if this doesn't work out, perhaps one of those might.

来源：https://stackoverflow.com/questions/25655404/how-to-compare-two-json-strings-for-equality-using-gson