DataWeave中的动态键值对 [英] Dynamic Key Value Pair in DataWeave

问题描述

DataWeave不喜欢我要用它做的事情，而且我不确定我做错了什么，还是DataWeave的局限性是不可能的.

DataWeave doesn't like what I'm trying to do with it, and I'm not sure if I'm doing something wrong, or if it is a limitation of DataWeave that isn't possible.

在这种情况下:我正在查询Salesforce并获取两个值:让我们将它们称为X和Y.

Here's the scenario: I'm querying Salesforce and getting two values back: lets call them X and Y.

这是我想要的返回[{X:Y}, {X2:Y2}, {X3:Y3}, ...]，但是，使用DataWeave似乎不可能获得这样的键值对，相反，似乎只能为脚本中的每个值专门设置Key，如下所示:

Here's the return I want [{X:Y}, {X2:Y2}, {X3:Y3}, ...] however, using DataWeave it doesnt seem possible to get a key value pair like that, instead, it only seems possible to specifically set the Key for each value in the script like so: [{Value_X: X, Value_Y: Y}, {Value_X: X2, Value_Y: Y2}, ...]

这是我当前使用的DataWeave脚本，但是给了我第二个结果:

Here is my current DataWeave script that works, but gives me the second result:

%dw 1.0
%output application/java
---

payload map {
    Value_X: $.X,
    Value_Y: $.Y
}

这是我希望工作的DataWeave脚本，但没有用

And here's the DataWeave script that I wish worked, but doesn't

%dw 1.0
%output application/java
---

payload map {
    $.X: $.Y
}

推荐答案

为使您的Dataweave代码正常工作，您需要用括号将要用作键的变量括起来:

In order for your Dataweave code to work properly, you need to surround the variable you want to use as a key with parentheses:

%dw 1.0
%output application/java
---

payload map {
    ($.X): $.Y
}

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