java - 使用 GSON 将嵌套 JSON 数组解析为数组

Question

我需要解析以下 Json

[
    "foo",
    [
        "foot mercato",
        "football",
        "foot center",
        "foorzik",
        "footao"
    ]
]

在java中使用Gson。

我对数组中的值非常感兴趣:到目前为止我已经尝试过:

String jsonStr = "[" + "\"foo\"," + " [" + "  \"foot mercato\"," + "  \"football\"," + "  \"foot center\"," +
                "  \"foorzik\"," + "  \"footao\"" + " ]" + "]";

JsonParser parser = new JsonParser();
JsonArray array = parser.parse(jsonStr).getAsJsonArray();

有什么建议吗？

Answer 1

获得数组后，您可以迭代它的所有元素。

for(JsonElement e : array) {
    System.out.println(e);
}

将输出

"foo"
["foot mercato","football","foot center","foorzik","footao"]

如果您只想要嵌套数组中的值，您可以这样做:

JsonArray nestedArray = parser.parse(jsonStr).getAsJsonArray().get(1).getAsJsonArray();
for(JsonElement e : nestedArray) {
    System.out.println(e);
}

将输出

"foot mercato"
"football"
"foot center"
"foorzik"
"footao"