Problem with Spring @Configuration class -

I use class with @ configuration annotation to configure my spring application:

 @configeration public class spring configuration {@Value ("$ {driver}") string driver; @ Value ("$ {url}") string URL; @well ("$ {minIdle}") Private Ent Minedal; // snip. @ Bean (delete method = "off") Public data source data source () {data source data source = new data source (); DataSource.setDriverClassName (driver); DataSource.setUrl (URL); DataSource.setUsername (user); DataSource.setPassword (password); DataSource.setMinIdle (minIdle); Return data source; } 

and property files CLASSPATH

 driver = org.postgresql.Driver url = jdbc: postgresql: servicerepodb minIdle = 1 

I would like to receive your datasource Object is configured in the DAO class:

 ApplicationContext ctx = new antitension config applications contaxes (spring configuration class); Datasource datasource = CTXGetbin (datasource class); 

But I get an error:

 org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'spring configuration': injection of autowired dependencies fail; Nested exception org.springframework.beans.factory.BeanCreationException: could not autowire field: private int de.hska.repo.configuration.SpringConfiguration.minIdle; Nested exception org.springframework.beans.TypeMismatchException: failed to change the value of the required type 'int' type 'java.lang.String'; Nested exception ** java.lang.NumberFormatException: for input string: "$ {minIdle}" ** by reason: java.lang.NumberFormatException: for input string: ** "$ {minIdle}" ** java.lang On (unknown source) java.lang.Integer.valueOf (unknown source) at .navaFormatException.forInputString (** Unknown source **) at java.lang.Integer.parseInt  
 This string properties (driver's Worked with), Url), but $ {minIdle} (type int's) can not be resolved! Please help. Thanx in advance! 
 

Updated: With updated information and your own, I've removed all data sources because I'm confident that your problem is & lt; Reference: Asset-Placeholder / & gt; belongs to the element.

Your error message is your belief that the root cause of the problem is:

Reason: java.lang.NumberFormatException: for input string: "$ {minIdle}"

I believe the problem is that property locator configurator has not been initiated if you want it to be & lt; Reference: Asset-Placeholder / & gt; element, all placeholders will be replaced with values ​​related to a property file in a post process operation at the end of the priority process and

  minIdle = demo string < / P> 
 If this was a parse error, and the attribute file contains such a row:  
  code>  
 After that, the error message < Code> "demo string"  would be used instead of "$ {minIdle}"  
 
 When it comes to parsing, Spring will handle parsing your computer with  @Value  annotation and your  minIdle  field works fine on my computer : 
 
  @ value ("$ {minIdle}") Private In Min Idle;  
 
 The only way to get your exception message is if I  & lt; Context: property-placeholder / & gt; Forgot to add the element  then I got the same exception message with the last property reached in the error message. 
 
  Demo app  
 
 A small experiment that emits your problem: 
 
  @Value ("$ {A} ") Private string A; @ Value ("$ {b}") private integer; @bean public string demo () {System.out.println ("a:" + a); System.out.println ("B:" + B); One + "," + b; }  
 
 without  property-placeholder  element: 
 
 
 Reason by: java.lang.NumberFormatException: for input string: " It works as expected with $ {B} "
 
 
  property-placeholder .