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2015-05-13 19:11 232 查看
在Flex中解析JSON,需要使用corelib包,包的下载地址为:https://github.com/mikechambers/as3corelib
我上传了一份,下载地址为:http://files.cnblogs.com/modou/as3corelib.zip
把解压的as3corelib.swc文件直接复制到flex项目的libs目录即可
 
JSON数据可以从Java等远程页面获取,这里为了简化例子,直接把json字符串放进来:

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<?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"
 
minWidth=
"955"
 
minHeight=
"600"
 
creationComplete=
"application1_creationCompleteHandler(event)"
>


    
<s:layout>


        
<s:BasicLayout/>


    
</s:layout>


    
<fx:Script>


        
<![CDATA[


            
import
 
com.adobe.serialization.json.JSON;


            
 

            
import
 
mx.collections.ArrayCollection;


            
import
 
mx.controls.Alert;


            
import
 
mx.events.FlexEvent;


            
import
 
mx.rpc.events.FaultEvent;


            
import
 
mx.rpc.events.ResultEvent;


            
 

            
protected
 
function
 
application1_creationCompleteHandler(event:FlexEvent):
void


            
{              


                
var
 
jsonData:
String
 
=
"[{\"filename\":\"aa.txt\",\"filesize\":\"312kb\"},{\"filename\":\"bb.txt\",\"filesize\":\"212kb\"}]"
;


                
var
 
arr:
Array
 
=(JSON.decode(jsonData) 
as
 
Array
); 


                
var
 
dp:ArrayCollection =
new
 
ArrayCollection(arr); 


                
 

                
grid.dataProvider =dp;


            
}


        
]]>


    
</fx:Script>


    
<fx:Declarations>


    
</fx:Declarations>


    
 

    
<mx:DataGrid id=
"grid"
 
x=
"129"
 
y=
"138"
>


        
<mx:columns>


            
<mx:DataGridColumn headerText=
"文件名"
 
dataField=
"filename"
/>


            
<mx:DataGridColumn headerText=
"文件大小"
 
dataField=
"filesize"
/>


        
</mx:columns>


    
</mx:DataGrid>


</s:Application>


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