我的Flex code不解析SOAP响应正确 [英] My flex code does not parse the soap response properly
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问题描述
我的code应该是解析SOAP响应和填充下拉列表。当我手动添加XML code它的工作原理，但是当我尝试分析它运行的SOAP响应到以下错误：
类型错误：错误＃1009：无法访问空对象引用的属性或方法。
在ex1_02_starter / dropDownList_creationCompleteHandler（）[C：\用户\千斤顶\的Adobe Flash Builder 4.5中\工作区\入门1_02的\ src \ ex1_02_starter.mxml：26]
在ex1_02_starter / ___ ex1_02_starter_Operation1_result（）[C：\用户\千斤顶\的Adobe Flash Builder 4.5中\工作区\入门1_02的\ src \ ex1_02_starter.mxml：41]
在flash.events::EventDispatcher/dispatchEventFunction（）
在flash.events::EventDispatcher/dispatchEvent（）
在mx.rpc::AbstractOperation/http://www.adobe.com/2006/flex/mx/internal::dispatchRpcEvent()[E:\dev\4.5.1\frameworks\projects\rpc\src\mx\rpc\AbstractOperation.as:249]
在mx.rpc::AbstractInvoker/http://www.adobe.com/2006/flex/mx/internal::resultHandler()[E:\dev\4.5.1\frameworks\projects\rpc\src\mx\rpc\AbstractInvoker.as:318]
在mx.rpc ::响应/结果（）[E：\ dev的\ 4.5.1 \框架\项目\ RPC的\ src \ MX \ RPC \ Responder.as：56]
在mx.rpc::AsyncRequest/acknowledge()[E:\dev\4.5.1\frameworks\projects\rpc\src\mx\rpc\AsyncRequest.as:84]
在DirectHTTPMessageResponder/completeHandler()[E:\dev\4.5.1\frameworks\projects\rpc\src\mx\messaging\channels\DirectHTTPChannel.as:451]
在flash.events::EventDispatcher/dispatchEventFunction（）
在flash.events::EventDispatcher/dispatchEvent（）
在flash.net::URLLoader/onComplete（）
SOAP响应，我接受
＆LT; XML版本=1.0编码=UTF-8＆GT？;
＆LT; soapenv：信封
的xmlns：soapenv =http://schemas.xmlsoap.org/soap/envelope/
的xmlns：XSD =http://www.w3.org/2001/XMLSchema的xmlns：XSI =http://www.w3.org/2001/XMLSchema-instance＆GT;
＆LT; soapenv：身体与GT;
＆LT; mycustomersResponse的xmlns =http://Services.com＆GT;
＆LT; mycustomersReturn＆GT;
＆LT;时代＆GT; 28 LT; /年龄＆GT;
＆LT;名称＆gt;＆亚历克斯LT; /名称＆gt;
＆LT; / mycustomersReturn＆GT;
＆LT; mycustomersReturn＆GT;
＆LT;时代＆GT; 29＆LT; /年龄＆GT;
＆LT;名称＆gt;杰克LT; /名称＆gt;
＆LT; / mycustomersReturn＆GT;
＆LT; mycustomersReturn＆GT;
＆LT;时代＆GT; 30℃/年龄＆GT;
＆LT;名称＆gt;＆约翰尼LT; /名称＆gt;
＆LT; / mycustomersReturn＆GT;
＆LT; / mycustomersResponse＆GT;
＆LT; / soapenv：身体与GT;
＆LT; / soapenv：信封＆GT;
我的Flex code
＆LT; XML版本=1.0编码=UTF-8＆GT？;
＆LT; S：应用的xmlns：FX =http://ns.adobe.com/mxml/2009
XMLNS：S =库：//ns.adobe.com/flex/spark
的xmlns：MX =库：//ns.adobe.com/flex/mx
的xmlns：成分=组件*。
的xmlns：打着招呼=services.hellos *。
高度=957的creationComplete =initApp（）＆GT;
＆LT; FX：样式源=Styles.css中/＆GT;
＆LT; FX：脚本＆GT;
＆LT;！[CDATA [
进口mx.collections.XMLListCollection;
进口mx.events.FlexEvent;
进口mx.messaging.messages.SOAPMessage;
进口mx.rpc.events.ResultEvent;
[可绑定]
VAR _result：*;
私有函数initApp（）：无效
{
mywebservice.mycustomers（）;
}
保护功能
dropDownList_creationCompleteHandler（事件：的ResultEvent）：无效
{
VAR的xml：XML = event.result为XML;
VAR的xmlString：字符串= xml.toXMLString（）;
变种PATT：正则表达式=新的RegExp（的xmlns [^ \] * \[^ \] * \，GI）;
VAR newXmlString：字符串= xmlString.replace（PATT，）;
XML =新的XML（newXmlString）;
_result =新的XMLListCollection（xml.mycustomersResponse.mycustomersReturn）;
}
]]≥
＆LT; / FX：脚本＆GT;
＆LT; FX：声明＆GT;
＆LT; S：WebService的ID =为MyWebService
WSDL =HTTP：//本地主机：8081 / WebServiceTest的/服务/ Hello分组WSDL＆GT;
＆LT; S：操作名称=mycustomers
的resultFormat =对象
结果=dropDownList_creationCompleteHandler（事件）;
/＆GT;
＆LT; / S：WebService的＆GT;
＆LT; / FX：声明＆GT;
＆LT; S：FormItem中的标签=标签＆GT;
＆LT; S：DropDownList的ID =DROPDOWNLIST
的labelField =名与GT;
＆LT; S：AsyncListView列表={_结果}/＆GT;
＆LT; / S：DropDownList的＆GT;
＆LT; / S：的FormItem＆GT;
＆LT; / S：用途＆gt;
解决方案
从这里<一个未来href="http://stackoverflow.com/questions/14314467/dropdown-list-does-not-show-its-values/14319106#14319106">dropdown列表不显示其值我稍微修改我的例子。有两个机会：
-
从XML命名空间的条
-
利用空间
这些都显示在DROPDOWNLIST和dropDownList2 $ C $分别℃。
请注意，你不能还在使用labelField属性（至少我不能找到一种方法）利用空间。你必须使用的labelFunction提取标签。
＆LT; XML版本=1.0编码=UTF-8＆GT？;
＆LT;！[CDATA [
进口mx.collections.XMLListCollection;
进口mx.events.FlexEvent;
进口mx.messaging.messages.SOAPMessage;
[可绑定]
VAR _result：*;
[可绑定]
VAR _result2：*;
保护功能
dropDownList_creationCompleteHandler（事件：FlexEvent）：无效
{
VAR的xml：XML =＆LT;车身及GT;
＆LT; myusersResponse的xmlns =http://Services.com＆GT;
＆LT; myusersReturn＆GT;
＆LT;名称＆gt;＆妮可LT; /名称＆gt;
＆LT;时代＆GT; 50℃/年龄＆GT;
＆LT; / myusersReturn＆GT;
＆LT; myusersReturn＆GT;
＆LT;名称＆gt;＆杰恩LT; /名称＆gt;
＆LT;时代＆GT; 40℃/年龄＆GT;
＆LT; / myusersReturn＆GT;
＆LT; myusersReturn＆GT;
＆LT;名称＆gt;＆亚历克斯LT; /名称＆gt;
＆LT;时代＆GT; 33＆LT; /年龄＆GT;
＆LT; / myusersReturn＆GT;
＆LT; / myusersResponse＆GT;
＆LT; /身体取代;
VAR的xmlString：字符串= xml.toXMLString（）;
变种PATT：正则表达式=新的RegExp（的xmlns [^ \] * \[^ \] * \，GI）;
VAR newXmlString：字符串= xmlString.replace（PATT，）;
XML =新的XML（newXmlString）;
_result =新的XMLListCollection（xml.myusersResponse.myusersReturn）;
}
保护功能dropDownList2_creationCompleteHandler（事件：FlexEvent）：无效
{
VAR的xml：XML =＆LT;车身及GT;
＆LT; myusersResponse的xmlns =http://Services.com＆GT;
＆LT; myusersReturn＆GT;
＆LT;名称＆gt;＆妮可LT; /名称＆gt;
＆LT;时代＆GT; 50℃/年龄＆GT;
＆LT; / myusersReturn＆GT;
＆LT; myusersReturn＆GT;
＆LT;名称＆gt;＆杰恩LT; /名称＆gt;
＆LT;时代＆GT; 40℃/年龄＆GT;
＆LT; / myusersReturn＆GT;
＆LT; myusersReturn＆GT;
＆LT;名称＆gt;＆亚历克斯LT; /名称＆gt;
＆LT;时代＆GT; 33＆LT; /年龄＆GT;
＆LT; / myusersReturn＆GT;
＆LT; / myusersResponse＆GT;
＆LT; /身体取代;
VAR NS：命名空间=新的命名空间（http://Services.com）;
_result2 =新的XMLListCollection（xml.ns :: myusersResponse.ns :: myusersReturn）;
}
私有函数dropDownList2_labelFunction（项目：对象）：字符串{
VAR itemXml：XML =项目作为XML;
VAR NS：命名空间=新的命名空间（http://Services.com）;
返回item.ns ::名称;
}
]]≥
＆LT; / FX：脚本＆GT;
＆LT; FX：声明＆GT;
＆LT; / FX：声明＆GT;
＆LT; S：FormItem中的标签=标签＆GT;
＆LT; S：DropDownList的ID =DROPDOWNLIST
的creationComplete =dropDownList_creationCompleteHandler（事件）
的labelField =名与GT;
＆LT; S：AsyncListView列表={_结果}/＆GT;
＆LT; / S：DropDownList的＆GT;
＆LT; S：DropDownList的ID =dropDownList2
的creationComplete =dropDownList2_creationCompleteHandler（事件）
的labelFunction =dropDownList2_labelFunction＆GT;
＆LT; S：AsyncListView列表={_ RESULT2}/＆GT;
＆LT; / S：DropDownList的＆GT;
＆LT; / S：的FormItem＆GT;
My code is supposed to parse a SOAP response and populate the dropdown list. When I manually add the xml code it works but when I try to parse the SOAP response it runs into following error:
TypeError: Error #1009: Cannot access a property or method of a null object reference.
at ex1_02_starter/dropDownList_creationCompleteHandler()[C:\Users\jack\Adobe Flash Builder 4.5\Workspace\Starter 1_02\src\ex1_02_starter.mxml:26]
at ex1_02_starter/___ex1_02_starter_Operation1_result()[C:\Users\jack\Adobe Flash Builder 4.5\Workspace\Starter 1_02\src\ex1_02_starter.mxml:41]
at flash.events::EventDispatcher/dispatchEventFunction()
at flash.events::EventDispatcher/dispatchEvent()
at mx.rpc::AbstractOperation/http://www.adobe.com/2006/flex/mx/internal::dispatchRpcEvent()[E:\dev\4.5.1\frameworks\projects\rpc\src\mx\rpc\AbstractOperation.as:249]
at mx.rpc::AbstractInvoker/http://www.adobe.com/2006/flex/mx/internal::resultHandler()[E:\dev\4.5.1\frameworks\projects\rpc\src\mx\rpc\AbstractInvoker.as:318]
at mx.rpc::Responder/result()[E:\dev\4.5.1\frameworks\projects\rpc\src\mx\rpc\Responder.as:56]
at mx.rpc::AsyncRequest/acknowledge()[E:\dev\4.5.1\frameworks\projects\rpc\src\mx\rpc\AsyncRequest.as:84]
at DirectHTTPMessageResponder/completeHandler()[E:\dev\4.5.1\frameworks\projects\rpc\src\mx\messaging\channels\DirectHTTPChannel.as:451]
at flash.events::EventDispatcher/dispatchEventFunction()
at flash.events::EventDispatcher/dispatchEvent()
at flash.net::URLLoader/onComplete()
The SOAP Response that I am receiving
<?xml version="1.0" encoding="UTF-8"?>
<soapenv:Envelope
xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<soapenv:Body>
<mycustomersResponse xmlns="http://Services.com">
<mycustomersReturn>
<age>28</age>
<name>Alex</name>
</mycustomersReturn>
<mycustomersReturn>
<age>29</age>
<name>Jack</name>
</mycustomersReturn>
<mycustomersReturn>
<age>30</age>
<name>Johny</name>
</mycustomersReturn>
</mycustomersResponse>
</soapenv:Body>
</soapenv:Envelope>
My Flex code
<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"
xmlns:mx="library://ns.adobe.com/flex/mx"
xmlns:components="components.*"
xmlns:hellos="services.hellos.*"
height="957" creationComplete="initApp()" >
<fx:Style source="Styles.css"/>
<fx:Script>
<![CDATA[
import mx.collections.XMLListCollection;
import mx.events.FlexEvent;
import mx.messaging.messages.SOAPMessage;
import mx.rpc.events.ResultEvent;
[Bindable]
var _result:*;
private function initApp():void
{
mywebservice.mycustomers();
}
protected function
dropDownList_creationCompleteHandler(event:ResultEvent):void
{
var xml:XML = event.result as XML;
var xmlString:String = xml.toXMLString();
var patt:RegExp = new RegExp("xmlns[^\"]*\"[^\"]*\"", "gi");
var newXmlString:String = xmlString.replace(patt, "");
xml = new XML(newXmlString);
_result = new XMLListCollection(xml.mycustomersResponse.mycustomersReturn);
}
]]>
</fx:Script>
<fx:Declarations>
<s:WebService id="mywebservice"
wsdl="http://localhost:8081/WebServiceTest/services/Hellos?wsdl">
<s:operation name="mycustomers"
resultFormat="object"
result="dropDownList_creationCompleteHandler(event);"
/>
</s:WebService>
</fx:Declarations>
<s:FormItem label="Label">
<s:DropDownList id="dropDownList"
labelField="name">
<s:AsyncListView list="{_result}"/>
</s:DropDownList>
</s:FormItem>
</s:Application>
解决方案
coming from here dropdown list does not show its values I slightly modified my example. There are two opportunities:
Strip namespace from xml
Utilize namespace
Those are shown in dropDownList and dropDownList2 code respectively.
Note, that you can not utilize namespace still using labelField property(at least I couldn't find a way). You have to use labelFunction to extract label.
<?xml version="1.0" encoding="utf-8"?>
<![CDATA[
import mx.collections.XMLListCollection;
import mx.events.FlexEvent;
import mx.messaging.messages.SOAPMessage;
[Bindable]
var _result:*;
[Bindable]
var _result2:*;
protected function
dropDownList_creationCompleteHandler(event:FlexEvent):void
{
var xml:XML = <Body>
<myusersResponse xmlns="http://Services.com">
<myusersReturn>
<name>Nicole</name>
<age>50</age>
</myusersReturn>
<myusersReturn>
<name>Jayne</name>
<age>40</age>
</myusersReturn>
<myusersReturn>
<name>Alex</name>
<age>33</age>
</myusersReturn>
</myusersResponse>
</Body>;
var xmlString:String = xml.toXMLString();
var patt:RegExp = new RegExp("xmlns[^\"]*\"[^\"]*\"", "gi");
var newXmlString:String = xmlString.replace(patt, "");
xml = new XML(newXmlString);
_result = new XMLListCollection(xml.myusersResponse.myusersReturn);
}
protected function dropDownList2_creationCompleteHandler(event:FlexEvent):void
{
var xml:XML = <Body>
<myusersResponse xmlns="http://Services.com">
<myusersReturn>
<name>Nicole</name>
<age>50</age>
</myusersReturn>
<myusersReturn>
<name>Jayne</name>
<age>40</age>
</myusersReturn>
<myusersReturn>
<name>Alex</name>
<age>33</age>
</myusersReturn>
</myusersResponse>
</Body>;
var ns:Namespace = new Namespace("http://Services.com");
_result2 = new XMLListCollection(xml.ns::myusersResponse.ns::myusersReturn);
}
private function dropDownList2_labelFunction(item:Object):String{
var itemXml:XML = item as XML;
var ns:Namespace = new Namespace("http://Services.com");
return item.ns::name;
}
]]>
</fx:Script>
<fx:Declarations>
</fx:Declarations>
<s:FormItem label="Label">
<s:DropDownList id="dropDownList"
creationComplete="dropDownList_creationCompleteHandler(event)"
labelField="name">
<s:AsyncListView list="{_result}"/>
</s:DropDownList>
<s:DropDownList id="dropDownList2"
creationComplete="dropDownList2_creationCompleteHandler(event)"
labelFunction="dropDownList2_labelFunction">
<s:AsyncListView list="{_result2}"/>
</s:DropDownList>
</s:FormItem>
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