Mule ESB - 如何处理来自Java组件中的网页的JSON请求

Question

I'm trying really hard to build the following scenario in Mule ESB 3: 1 - Send a Ajax request sending a JSON object to an AJAX endpoint in Mule ESB 2 - Map this JSON in a Java POJO using Json "Object to Json" component 3 - Invoke a Java method passing this converted object

I searched a lot of pages, but none has such a scenario. All the references doesn't have a complete example.

I know it's a very simple scenario, but its really, really hard to make such a dumb thing work in Mule ESB.

Answer 1

Mule has JSON-to-Object transformer which can be used to get JSON elements. So, when you receive a JSON input in your flow, you extract it using JSON-to-Object transformer and using return class as java.lang.Object or java.util.List or java.util.HashMap depending on your JSON.

For example if your JSON is following :-

{
  "token" : 123,
  "id" : 456,
  "email" : "abc@abc.com",
  "status" : "Success"
}

Now, to extract the elements, you need to use :-

<json:json-to-object-transformer returnClass="java.lang.Object" doc:name="JSON to Object" />

And then can extract like :- #[message.payload.email] or #[message.payload.status]

Answer 2

创建一个带有入站HTTP端点的流，然后创建一个JSON到对象转换器（不是你说的那样），然后是组件或调用消息处理器，具体取决于Java对象的设计方式。