Spring properties (property-placeholder) autowiring

Question

I have in my applicationContext.xml

<context:property-placeholder location="classpath*:*.properties" />


<bean id="clientPreferencesManager" class="pl.bildpresse.bildchat2.business.ClientPreferencesManager" >
    <property name="clientApiUrl" value="${clientapi.url}" />     
</bean>

Is it possible to do the same by autowire ? Something like :

@Autowired
@Qualifier("${clientapi.url}")
public void setClientApiUrl(String clientApiUrl) {
    this.clientApiUrl = clientApiUrl;
}

score 79 · Accepted Answer · answered May 21 '10 at 14:28

79

You can use @Value:

@Value("${clientapi.url}") 
public void setClientApiUrl(String clientApiUrl) { 
    this.clientApiUrl = clientApiUrl; 
}

answered May 21 '10 at 14:28

axtavt

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true, for spring 3.0, which is the current version. (+1) – Bozho May 21 '10 at 16:48
1

so it's the dollar sign! not a hash. thanks for the tip. javadocs for @Value misled me – Peter Perháč Mar 30 '12 at 20:30
Silly question but where does it get the ${clientapi.url} from?? – user2441441 Jun 14 '16 at 22:24
@user2441441 from a properties file on the classpath, most likely `application.properties` – Joffrey Apr 10 '17 at 19:43

score 8 · Answer 2 · edited Nov 17 '14 at 09:51

8

It took me some time to understand why it didn't work. I always used a # instead of a $. I always got the message:

EL1008E:(pos 0): Field or property 'secretkey' cannot be found on object of type 'org.springframework.beans.factory.config.BeanExpressionContext'

Just had to change it from:

@Value("#{secretkey}')

to

@Value('${secretkey}')

I hope this saves somebody's time.

edited Nov 17 '14 at 09:51

Yohanes Khosiawan 许先汉

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answered May 11 '12 at 12:38

Felix

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I was blokced by this...this was the fix! Thanks Felix – hashcoder Nov 02 '14 at 06:34

score 5 · Answer 3 · edited Jan 04 '12 at 21:30

5

Ok. Just got it. You need to add @Autowired Something like:

@Autowired
@Value("${clientapi.url}") 
private StringValueResolver resolver;

I'm using spring 3.0.0.RELEASE

Cheers

edited Jan 04 '12 at 21:30

sjngm

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answered Aug 18 '10 at 13:31

Costa

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score 2 · Answer 4 · answered May 22 '10 at 09:47

For spring 3.0, the correct way is the one shown - using @Value("${expression}")

For spring pre-3.0, you can try:

@Autowired
private StringValueResolver resolver;

There were no context initialization problems here, but I'm not sure it will work. Using the resolver you can resolve properties.

score 1 · Answer 5 · answered May 27 '10 at 11:21

1

My solution is to use

<context:property-override location="classpath:clientapi.properties" />

and then in clientapi.properties file

clientPreferencesManager.clientApiUrl=http://localhost:8084/ClientAPI/resources/

This one is good too

answered May 27 '10 at 11:21

Piotr Gwiazda

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Spring properties (property-placeholder) autowiring

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