Java 创建没有键值的 JsonArray
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Create JsonArray without key value
提问by AkiraYamaokaNC
Please help me create jSonArray without keys. It should looks like:
请帮我创建没有键的 jSonArray。它应该看起来像：
"main" : ["one", "two", "three"]
I have tried it with empty key value:
我用空键值尝试过：
private String generate(String value) {
Gson gson = new Gson();
JsonArray jsonArray = new JsonArray();
JsonObject jsonObject = new JsonObject();
jsonObject.addProperty("", value);
jsonArray.add(jsonObject);
return gson.toJson(jsonArray);
}
Result looks bad..
结果看起来很糟糕..
"main": "[
{\"\":\
"myString value\"}
]"
采纳答案by lummycoder
JsonObject obj = new JsonObject();
JsonArray array = new JsonArray();
array.add(new JsonPrimitive("one"));
array.add(new JsonPrimitive("two"));
array.add(new JsonPrimitive("three"));
obj.add("main", array);
回答by Konstantin Yovkov
You can do something like:
您可以执行以下操作：
Gson gson = new Gson();
JsonArray array = new JsonArray();
array.add(new JsonPrimitive("one"));
array.add(new JsonPrimitive("two"));
array.add(new JsonPrimitive("three"));
JsonObject jsonObject = new JsonObject();
jsonObject.add("main", array);;
System.out.println(gson.toJson(jsonObject));
which outputs:
输出：
{"main":["one","two","three"]}
回答by Cirou
What you are trying to do is just to fill an array with primitive variables, to achieve that you have to change your code like this:
您要做的只是用原始变量填充数组，以实现您必须像这样更改代码：
private String generate(String value) {
Gson gson = new Gson();
JsonArray jsonArray = new JsonArray();
jsonArray.add(new JsonPrimitive(value));
return gson.toJson(jsonArray);
}
回答by Vishal Ranapariya
Sample Code
示例代码
JSONObject obj = new JSONObject();
JSONArray list = new JSONArray();
list.add("msg 1");
list.add("msg 2");
list.add("msg 3");
obj.put("", list);
You can use this to put an array without key.
您可以使用它来放置没有键的数组。
