ule子表达式转换器异常 [英] mule expression transformer exception

问题描述

我有一个有效载荷，例如

I have a payload like

{"jcr:createdBy":"admin","jcr:content":{"sling:resourceType":"contentpage","addressdetails":{"state":"vic"}}}

我想更改state的值.我尝试了以下方法，

I want to change the value of state. I have tried the below,

<expression-transformer
                    expression="#[message.payload.jcr:content.addressdetails.state = 'NSW';message.payload]"
                    doc:name="Expression" />

但这会引发异常，无效的表达式. 我相信这是因为:在jcr:createdBy中.我该如何处理?

but this throws an exception, invalid expression. I believe its because of : in jcr:createdBy. How should I handle this?

推荐答案

尝试在表达式前输入<json:json-to-object-transformer returnClass="java.util.HashMap" />，如下所示:-

Try <json:json-to-object-transformer returnClass="java.util.HashMap" /> before expression like following :-

<json:json-to-object-transformer returnClass="java.util.HashMap" />
<expression-transformer expression="#[message.payload.jcr.content:addressdetails.state = 'NSW';message.payload]"  doc:name="Expression" />

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