英文:
How to convert list of Json string to JsonObject using Gson
问题
我有一个 JSON 字符串列表：List<String> jsonStringList，我想使用 Gson 将它们转换为单个 JsonObject，我想知道最佳方法是什么？
我知道我可以逐个解析它们，就像这样：
for (String jsonString : jsonStringList) {JsonElement parsed = new JsonParser().parse(jsonString);}
但是我该如何将它们合并在一起？最佳方法是什么？
英文:
I have a list of Json string: List<String> jsonStringList, I want to convert it to a single JsonObject using Gson, may I know what is the best way to do it?
I know I can parse them one by one like:
for (String jsonString : jsonStringList) {JsonElement parsed = new JsonParser().parse(jsonString);}
But how do I join them together? What is the best way to do it?
答案1
得分: 1
String s1 = "{\n" +" \"userName\": \"RandomDiscord Name\",\n" +" \"permissions\": \"read\"\n" +" }";String s2 = "{\n" +" \"userName\": \"RandomDiscord Name1\",\n" +" \"permissions\": \"read2\"\n" +" }";List<String> jsonStringList = Arrays.asList(new String[]{s1, s2});JSONArray arr = new JSONArray();for (String jsonString : jsonStringList) {JsonElement obj = new JsonParser().parse(jsonString);arr.add(obj);}String jsonString = arr.toString();System.out.println(jsonString);JSONObject obj = new JSONObject();try {obj.put("CustomObject", arr);} catch(JSONParseException e) {e.printStackTrace();}System.out.println(obj.toString());
输出结果：
[{"userName":"RandomDiscord Name","permissions":"read"},{"userName":"RandomDiscord Name1","permissions":"read2"}]{"CustomObject":[{"userName":"RandomDiscord Name","permissions":"read"},{"userName":"RandomDiscord Name1","permissions":"read2"}]}
英文:
String s1 = "{\n" +" \"userName\": \"RandomDiscord Name\",\n" +" \"permissions\": \"read\"\n" +" }";String s2 = "{\n" +" \"userName\": \"RandomDiscord Name1\",\n" +" \"permissions\": \"read2\"\n" +" }";List<String> jsonStringList = Arrays.asList(new String[]{s1, s2});JSONArray arr = new JSONArray();for (String jsonString : jsonStringList) {JsonElement obj = new JsonParser().parse(jsonString);arr.add(obj);}String jsonString = arr.toString();System.out.println(jsonString);JSONObject obj = new JSONObject();try {obj.put("CustomObject", arr);} catch(JSONParseException e) {e.printStackTrace();}System.out.println(obj.toString());
Try to use JSONArray and while iterating List<String> just add that object into JsonArray.
For above code, i am getting below output
O/P
[{"userName":"RandomDiscord Name","permissions":"read"},{"userName":"RandomDiscord Name1","permissions":"read2"}]{"CustomObject":[{"userName":"RandomDiscord Name","permissions":"read"},{"userName":"RandomDiscord Name1","permissions":"read2"}]}
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