Expression Language Conditions

You can use the EL to set a condition of execution and it is possible to use logical operators such as && or ||, as shown in the example below:

{#request.headers['my-header'] != null && #request.headers['my-header'] == "my-value"}

note

Alternate equality check: You can use the equals() method instead of ==. When you use .equals(), it is recommended to put the string first to prevent an error. For example, if #request.headers['my-header'] is null , then 'my-value'.equals(#request.headers['my-header']) will prevent an error.