Question

我想通过Domino Access Services（DAS）访问Domino数据作为Java中的REST提供程序，例如

String url = "http://malin1/fakenames.nsf/api/data/collections/name/groups";
ObjectMapper mapper = new ObjectMapper();
JsonFactory factory = new JsonFactory();
JsonParser parser = factory.createParser(new URL(url));
JsonNode rootNode = mapper.readTree(parser);

但是，我注意到DAS将JSON绑定在方括号中：

[
  {
      "@entryid":"1-D68BB54DEA77AC8085256B700078923E",
      "@unid":"D68BB54DEA77AC8085256B700078923E",
      "@noteid":"1182",
      "@position":"1",
      "@read":true,
      "@siblings":3,
      "@form":"Group",
      "name":"LocalDomainAdmins",
      "description":"This group should contain all Domino administrators in your domain. Most system databases and templates give people in this group Manager access."
  },
 {
      "@entryid":"3-9E6EABBF405A1A9985256B020060E64E",
      "@unid":"9E6EABBF405A1A9985256B020060E64E",
      "@noteid":"F46",
      "@position":"3",
      "@read":true,
      "@siblings":3,
      "@form":"Group",
      "name":"OtherDomainServers",
      "description":"You should add all Domino servers in other domains with which you commonly replicate to this group."
  }
]

如何轻松摆脱这些括号？

Answer 1

如前所述，你应该保持原样。例如，您可以使用Jackson解析.JSON数组。

找到下面的示例代码段

import org.codehaus.jackson.JsonNode;
import org.codehaus.jackson.JsonProcessingException;
import org.codehaus.jackson.map.ObjectMapper;
...

String response = ... your posted string
ObjectMapper mapper = new ObjectMapper();
try {
    JsonNode taskIdsjsonNode = mapper.readTree(response);
    for (JsonNode next : taskIdsjsonNode) {
        System.out.printf("%s: %s%n", "@entryid", next.get("@entryid"));
        System.out.printf("%s: %s%n", "name", next.get("name"));
    }
} catch (.... ) {
    // your exception handling goes here
}

<强>输出

@entryid: "1-D68BB54DEA77AC8085256B700078923E"
name: "LocalDomainAdmins"
@entryid: "3-9E6EABBF405A1A9985256B020060E64E"
name: "OtherDomainServers"

Answer 2

括号不是令人讨厌的，而是正确的表示法。要访问竞争，只需在客户端脚本中使用[0]或使用您喜欢的Java中的JSON解析器。

Answer 3

也许这里的解释可以提供帮助：

https://quintessens.wordpress.com/2015/05/08/processing-json-data-from-domino-access-services-with-jackson/

基本上你通过Jersey客户端建立对DAS的调用，然后通过Jackson库将json解析为java中的地图。

在解析过程中，您可以定义要解析和转换它们的值。

看一下Person类...

从多米诺骨牌访问服务中删除方括号

3 个答案: