gson JsonParser

//两个 \\
		String json = "{\"name\":\"ab\\\\n86cde\"}";

		User user = new Gson().fromJson(json, User.class);
        //解码后变为一个 \ 
		System.out.println(user.name);

		json = new Gson().toJson(user);
		//编码后变为两个 \\
		System.out.println("json=="+json);

		JsonParser parser = new JsonParser();

		JsonElement element = parser.parse(json);

		JsonObject jsonObject = element.getAsJsonObject();
        //还是两个 \\   
		System.out.println(jsonObject.toString());

 

   结果

ab\n86cde
json=={"name":"ab\\n86cde"}
{"name":"ab\\n86cde"}