java - Groovy:创建对象以添加到 LinkedHashMap 中

Question

我是 Groovy 和 Java 新手。我有从某个对象返回 LinkedHashMap 的函数。它有效:

def get_map(Node) {
    nodeRootName = Node.name() 
    if (Node.childNodes().size() == 0) {
        return [(nodeRootName): (Node.text())]
    } else {
        subMap = [(nodeRootName):[]]
        for (subNode in Node.childNodes()) {
            if (subNode.name() != "cryptoSigns") {
                subMap.(subMap.keySet()[0]).add(get_map(subNode))
            }    
        }
        return subMap
    }
}

在代码中调用此函数:

    nodeMap = [(rootNodeName): [data:[]]] 
    for (subNode in node.childNodes()[0].childNodes()) {
            nodeMap.position.data.add(get_map(subNode))
        }
    } 

LinkedHashMap的数组[data:[]]已形成。

现在，我需要从数组中创建一个 LinkedHasMap。我尝试在我的函数中制作一张 map 。它可以是一张 map 或带有键的 map 数组。例如:

[data:[
 key1: value,
 key2:[
   [key: value],
   [key: [
    [key: value],
    [key: value]
   ]
 ]
]]

我尝试:

def get_map(Node) {
    nodeRootName = Node.name() 
    if (Node.childNodes().size() == 0) {
        Map map = new HashMap()
        map.put((nodeRootName), (Node.text()))
        return map
    } else {
        Map subMap = new HashMap()
        for (subNode in Node.childNodes()) {
            subMap.put((nodeRootName), (get_map(subNode)))    
        }
        return subMap
    }
}

调用函数:

 Map nodeMap = new HashMap()
 Map data = new HashMap()
 for (subNode in node.childNodes()[0].childNodes()) {
      data.put(get_map(subNode))
      nodeMap.put((rootNodeName): (data))
 }  
 jsonObject.nsiKTRUs.add(nodeMap)  

但是我有错误:groovy.lang.MissingMethodException:没有方法签名:java.util.HashMap.put()适用于参数类型:(HashMap)值:[[code:01.11.11.111-00001]] data.put(get_map(subNode))

如何正确地将我的值添加到 map 中？我的输入数据:

<xml>
 <data>
   <key>value</key>
     <key2>
       <key21>value</key>
       <key22>value</key>
       <key23>
         <key231>value</key>
       </key>
    </key2>
 </data>
<xml>

自定义嵌入。

需要输出

[data:[
    key: value, 
    key2:[
        key21: value, 
        key22: value, 
        key23:[
          key231: value
        ]
     ]
 ]
]

并且输出数据需要添加到另一个LinkedHashMap

Answer 1

我会把它写成这样:

import groovy.util.*
import groovy.json.*


def text = '''<xml>
<data>
  <key>value1</key>
    <key2>
      <key21>value21</key21>
      <key22>value22</key22>
      <key23>
        <key231>value</key231>
      </key23>
   </key2>
</data>
</xml>'''

def xml = new XmlParser().parseText( text )

def handle
handle = { node ->
  if( node in String )
    node
  else{
    def val = node.collect handle
    [ (node.name()):1 == val.size() ? val.first() : val.collectEntries{ it } ]
  }
}

def map = xml.collect handle

// this line is needed for pretty print only
JsonOutput.prettyPrint JsonOutput.toJson( map )

输出:

[
    {
        "data": {
            "key": "value1",
            "key2": {
                "key21": "value21",
                "key22": "value22",
                "key23": {
                    "key231": "value"
                }
            }
        }
    }
]