I was attempting this example given here : https://docs.spring.io/spring-boot/docs/current/reference/htmlsingle/#boot-features-external-config-typesafe-configuration-properties
All worked well except when attempted added another properties to load hashmap values
property added as:
demoapp.security.policies={'KEY1': 'value1', 'KEY2': 'value3', 'KEY3': 'value5'}
And inside Secutiry inner class, added another variable as below:
private Map<String, String> policies;
public Map<String, String> getPolicies() {
return policies;
}
public void setPolicies(Map<String, String> policies) {
this.policies = policies;
}
But this throws error as :
Caused by: org.springframework.core.convert.ConverterNotFoundException: No converter found capable of converting from type [java.lang.String] to type [java.util.Map<java.lang.String, java.lang.String>]
Interestingly if I put this in a normal(non-nested) configuration class it works fine for me.
What is going wrong here, any suggestions please
When binding to a map, you're binding nested properties, so you need to specify the properties separately.
Properties file:
demoapp.security.policies.KEY1=value1
demoapp.security.policies.KEY2=value3
demoapp.security.policies.KEY3=value5
YAML file:
demoapp.security.policies:
"[KEY1]": value1
"[KEY2]": value3
"[KEY3]": value5