Question

我有以下从servlet发送到索引页的String数据。

{  "hits" : {"hits" : [ { "_source":{"ID":"123","Status":"false","Name":"ABC_123","Date":"2010-08-16T11:07:48"}    }, {      "_source":{"ID":"124","Status":"false","Name":"ABC_678","Date":"2010-08-16T12:00:12"}    }, {      "_source":{"ID":"125","Status":"true","Name":"FGH_122","Date":"2010-08-16T12:01:48"}    }, {      "_source":{"ID":"126","Status":"false","Name":"TYT_333","Date":"2010-08-16T12:06:48"}    }, {      "_source":{"ID":"127","Status":"false","Name":"CVF_230","Date":"2010-08-16T12:07:18"}    }, {      "_source":{"ID":"128","Status":"true","Name":"AWE_101","Date":"2010-08-16T12:03:48"}    }, {      "_source":{"ID":"129","Status":"true","Name":"WEC_299","Date":"2010-08-16T12:07:29"}    } ]  }}

我想解析数据并以arraylist格式查看数据，如：

{ID:"123", "Name":"ABC_123"}
{ID:"124", "Name":"ABC_678"}

等...

我是如何从客户端或从服务器实现这一点的？请指教..谢谢

Answer 1

创建一个新数组并在将它们返回到JSP之前向其中添加对象。

Array (
    [0] => Array (
        [studentID] => 1
        [ParentID] => 1
    )

    [1] => Array (
        [studentID] => 2
        [ParentID] => 1
     )
)

Array (
    [0] => Array (
        [studentID] => 5
        [ParentID] => 1
     )

     [1] => Array (
         [studentID] => 7
         [ParentID] => 3
      )
)

Answer 2

您应该在循环之前创建ArrayList HashMap个，并在那里添加数据。喜欢这个

...rest of your code...
List<Map<String, String>> list = new ArrayList<Map<String, String>>();            
for (int i = 0 ; i < hitsArray.length(); i++) {
    JSONObject jObject = hitsArray.getJSONObject(i);
    Map<String, String> data = new HashMap<String, String>();
    JSONObject source = jObject.get("_source");
    Iterator<String> it = source.keys();
    while (it.hasNext()) {
        String key = it.next();
        data.put(key, source.getString(key));
    }
    list.add(data);
}
request.setAttribute("jsonObject", list);
... rest of your code...

更新了jettison的代码，但我建议切换到javax.json;

如何从html中提取key：value

2 个答案: