javaspringconsulspring-cloud-consulconsul-kv

Reading empty string from consul using spring-cloud-consul

I'm migrating from file based .properties file to consul based configuration in my spring application. I'm using spring-cloud-consul. Earlier in my property file I had a property like following

test.key=

In spring application class corresponding field is like this

@Value("${test.key:defaultVal}") private String testConsul;

In the runtime, the value of testConsul string is an empty string. But when using the consul, whenever I put key test.key without a value, in the runtime it gets resolved to a null.

Is there anyway I can pass an empty string value through consul ?

Solution

  • This is the work around we're using. use a default value which is not exist

    ${no.such.key:}

    Hope this helps.