java - 使用 GSON 将多个 Collection<String> 合并为一个 JSON String

Question

有没有办法将不同的字符串集合合并到一个 JSON“字符串”中？ 我想要一个如下所示的 JSON 字符串:

{"vendor":[Sun, HP, IBM],"product":[bla, bla, bla],"availability":[high, mid, low],"capacity":[bla, bla, bla], ...}

这是我的 Java 代码的一部分:

Collection<String> vendor = bh.getAllVendors();
Collection<String> product = bh.getProductsForVendor(vendor);
Collection<String> availability = bh.getAllAvailabilities();
Collection<String> capacity = bh.getCapacityForVendor(vendor);
Collection<String> signaling = bh.getSignalingForVendor(vendor);
Collection<String> backup = bh.getBackupForVendor(vendor);

Gson gson = new Gson();

如有任何帮助，我们将不胜感激。

Answer 1

如果将它们添加到 map 中会最简单:

    Gson gson = new Gson();

    Map<String, Collection<String>> map = new HashMap<>();
    map.put("vendor", vendor);
    map.put("product", product);
    //etc

    System.out.println(gson.toJson(map));

生产 {"product":["bla","bla","bla"],"vendor":["Sun","IBM","HP"]}