How do I use URIs with parameters in XML?

If you try and use one of the Camel URIs in an Xml Configuration using the URI query parameter notation, such as

<route>
 <from uri="direct:start?paramA=1&paramB=2"/>
 <to uri="mock:result"/>
</route>

you might get errors such as...

Caused by: org.xml.sax.SAXParseException: The reference to entity
"paramB" must end with the ';' delimiter.
  at
com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapper.java:236)
  at

This is because in XML you need to escape some special XML characters like these

Special Character

How to escape it in XML 

&
 
&amp;
 
<
 
&lt;
 
>
 
&gt;

So if you write the following XML it should work...

<route>
 <from uri="direct:start?paramA=1&amp;paramB=2"/>
 <to uri="mock:result"/>
</route>
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