问题描述
{
abc: "",def: "hello"
}
我希望将此空白元素在XML中设为nillable,即我正在使用以下dataweave代码:
%dw 2,0
output application/xml skipNullOn="everywhere"
var makeNil= (in) ->
in match {
case is Array -> in map makeNil($)
case is Object -> in mapObject (
if ( ($) == "")
($$) @(xsi#'nil':true): {}
else ($$): makeNil($)
)
else -> in
}
---
makeNil(payload)
我无法使用@(xsi#'nil':true)作为键($$)的属性。请帮助我
解决方法
解决我在评论中提到的错误,添加根元素即可。请记住,与JSON不同,XML需要一个根元素。
%dw 2.0
output application/xml skipNullOn="everywhere"
ns xsi http://www.w3.org/2001/XMLSchema-instance
var makeNil= (in) ->
in match {
case is Array -> in map makeNil($)
case is Object -> in mapObject (
if ( ($) == "")
($$) @(xsi#'nil':true): {}
else ($$): makeNil($)
)
else -> in
}
---
top: makeNil(payload)
输入:
{
"abc": "","def": "hello"
}
输出:
<?xml version='1.0' encoding='UTF-8'?>
<top>
<abc xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:nil="true"/>
<def>hello</def>
</top>