如何访问json数据m子esb [英] how to access json data mule esb

问题描述

我想将同步流生成的json数据访问到异步流中. 我从同步流正确获取json数据，我想从我的json数据中获取某些属性值，如下所示:

i want to access json data generated from the sync flow into an async flow. I am getting json data from sync flow correctly and i want to fetch certain attribute value from that my json data is as follows :

{"data" : [{"in_timestamp":"2012-12-04","message":"hello","out_timestamp":null,"from_user":"user2","ID":43,"to_user":"user1"}]} and to user is #[json:to_user]}

我想从此json格式访问to_user属性. 我尝试使用#[json:to_user]，但它只是将其打印为字符串，并且不返回任何值. 请帮忙.预先感谢.

I want to access to_user attribute from this json format. I have tried using #[json:to_user] but it simply prints it as a string and doesnt return any value. Please help. Thanks in advance.

推荐答案

基于示例JSON的正确表达式是:

The right expression based on your sample JSON is:

#[json:data[0]/to_user]

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