我正在编写以下方法来递归解析包含复杂XML的SoapObject数据（这是一个SoapObject，其中SoapObject作为某些属性的值）。 SoapObject是来自基于SOAP的Web服务的响应，我使用ksoap2进行了消费
在此方法中，我们遍历传入的响应SoapObject的所有属性。我们检查属性是否不是SoapObject（这意味着它具有简单的String名称和String值），在这种情况下，我们只需将名称和值作为键值放入HashMap对。但是，如果属性是SoapObject，我们将调用方法本身（递归），并将其传递给SoapObject。
码：
static protected Map<String, String> parseComplexSoapObject(SoapObject soapObject) {
Map<String, String> hashMap = new HashMap<String, String>();
//Iterate through the properties starting at top of soapObject
for (int i=0; i<soapObject.getPropertyCount(); i++) {
//Get the current property
Object currentPropertyObject = soapObject.getProperty(i);
//If current property is the last property, check if it is a string or a soap object
if (i==soapObject.getPropertyCount()-1) {
//If it is a string, add the key value pair of property to the map and break the loop. The only statement after the loop will return the map.
if(currentPropertyObject!=null && !(currentPropertyObject instanceof SoapObject)) {
hashMap.put(currentPropertyObject.toString(), currentPropertyObject.toString());
break;
}
//else If it is a soap object, cast the currentPropertyObject to SoapObject and make a recursive call to the function itself, passing the current property so that the method gets "inside" this current property soap object and does all this again
else if(currentPropertyObject!=null && currentPropertyObject.getClass().equals(SoapObject.class)) {
SoapObject currentPropertySoapObject = (SoapObject) currentPropertyObject;
parseComplexSoapObject(currentPropertySoapObject);
}
}
//else if the current property not the last property, check if it is a soap object or a string
else {
//if the current property is a string, add its key value pair to the string and "continue" the loop, so that the loop continues to read the next properties
if(currentPropertyObject!=null && !(currentPropertyObject instanceof SoapObject)) {
hashMap.put(currentPropertyObject.toString(), currentPropertyObject.toString());
continue;
}
//else if the current property is a soap object, cast the currentPropertyObject to SoapObject and make a recursive call to the function itself, passing the current property so that the method gets "inside" this current property soap object and does all this again
else if(currentPropertyObject!=null && currentPropertyObject.getClass().equals(SoapObject.class)) {
SoapObject currentPropertySoapObject = (SoapObject) currentPropertyObject;
parseComplexSoapObject(currentPropertySoapObject);
}
}
}
return hashMap;
}
问题：
现在，问题在于方法返回的
HashMap是在该方法内部创建的，因此，每次递归调用该方法时，都会重新创建HashMap并且丢失先前的数据。即使我在此方法之外创建
HashMap并从该方法简单地向其写入数据，问题仍将是，由于哪个名称值对来自哪个嵌套级别（例如<result>
<id>25323205</id>
<name>Cric</name>
<result>
<version>1.0</version>
<result>
<id>445</id>
</result>
将像
HashMap = {id=>25323205, name=>Cric, version=>1.0, id=>445}一样存储。我希望这样：HashMap = {result=>{id=>25323205, name=>Cric}, version=>1.0, result=>{id=>445}}
那我该怎么办？
最佳答案
关键是，您尝试将多维数据转换为平面结构。仅在某些情况下才有可能。考虑一下它是否真的可以满足您的数据和业务需求。
我有一些想法，您可能会做些什么-任何可能都足够，每个都没用:)
如果名称的乘法始终在不同的嵌套级别上，请尝试使用“ body” fe中的全名。 “结果/ ID”，“结果/某物/ ID”。
您可以编号类似标签fe。 “ id> 001”，“ id> 002”或其他内容（需要第二个地图-整数）。它的方式允许您存储数据，但是却使您在阅读，搜索等方面的速度大大降低。如果您以后只是从头到尾遍历数据，那就足够了。
如果需要将代码与ksoap数据模型隔离，则可以尝试将SoapObject / Primitive结构投影到使用标准Java对象构建的结构中，但是具有相同的复杂性并且不会丢失任何信息。 xml的此结构将是列表列表。
这是示例类Elem，可以容纳Name + Value，其中value可以是Object.Object将是ArrayList或String。以及将Soap ...转换为新结构的简单方法：
class Elem{
String name;
Object value;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Object getValue() {
return value;
}
public void setValue(Object value) {
this.value = value;
}
}
List<Elem> parseComplexSoapObject(SoapObject soapObject) {
List<Elem> tmp=new ArrayList<Elem>();
PropertyInfo info=new PropertyInfo();
for (int i=0; i<soapObject.getPropertyCount(); i++) {
Object currentPropertyObject = soapObject.getProperty(i);
Elem newElem = new Elem();
if(currentPropertyObject instanceof SoapObject){
SoapObject currentPropertySoapObject = (SoapObject)currentPropertyObject;
info.clear();
soapObject.getPropertyInfo(i, info);
newElem.setName(info.name);
newElem.setValue(parseComplexSoapObject(currentPropertySoapObject));
}else{
//assume primitive
SoapPrimitive currentPropertySoapPrimitive = (SoapPrimitive)currentPropertyObject;
info.clear();
soapObject.getPropertyInfo(i, info);
newElem.setName(info.name);
newElem.setValue(currentPropertySoapPrimitive.getValue().toString());
}
tmp.add(newElem);
}
return tmp;
}