交换消息头格式

Question

I am trying to set exchange message header. I need Help In formatting the code. I need to set below values in header

usr.Person.Name = "Peter"
usr.Person.ID = "ABC123"

I tried

exchange.getIn().setHeader("usr.Person.Name", "Peter");
exchange.getIn().setHeader("usr.Person.ID", "ABC123");

But when I see in Active MQ it is formatted as

usr_DOT_Person_DOT_Name: Peter
usr_DOT_Person_DOT_ID : ABC123

I need to print as it is, I tried to google is but no luck. Any suggestions??

Answer 1

It's a violation of the JMS specification to use a . character in the name of a message header/property which is why the Camel JMS component translates it to DOT as noted in the documentation . You can always translate it back into the original format when you read it.

Answer 2

From Camel in action

In Camel, a header can be named anything that will fit in a Java String, and its value can be any Java object. This presents a few problems when sending to and receiving from JMS destinations.

... Any period (.) characters are replaced by DOT , and any hyphens (-) are replaced with HYPHEN . For example, a header named org.apache.camel.Test-Header would be converted to org_DOT_apache_DOT_camel_DOT_Test_HYPHEN_Header before being sent to a JMS destination. If this message is consumed by a Camel route at some point down the line, the header name will be converted back.

Also you can find this info here https://camel.apache.org/components/latest/jms-component.html in MESSAGE HEADER MAPPING section.