java - How can I use Spring 3.2.3 JavaConfig to read an environment variable? -


i trying use spring 3.2.3 release javaconfig in app , need read value of environment variable.

i have read javaconfig 1.0.0.m4 documentation seems need cannot find how import or resolve referenced @environmentvaluesource or @externalvalue annotations.

can show me how please? thanks.

you should able use @value annotation spel expression retrieve environmental variable systemenvironment properties object, e.g.:

@value("#{ systemenvironment['my_property'] }") private string myproperty;

if need system properties, use systemproperties['my_property'] instead.

additionally, documentation should looking @ here - have linked quite old.


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