Spring PLACEHOLDER Parser---propertyplaceholderhelper

First, Propertyplaceholderhelper responsibility

The role of the placeholder parser, which is designed to parse the characters of the placeholder in the or name in the path, and replace the specific value

Ii. examples

 public  class   Propertyplaceholderhelperdemo {@SuppressWarnings (" resource ")  public  static  void   main (string[] args) {Properties properties  = System.getproperties ();                Properties.setproperty ( "Prefixname", "Read-code" ); ApplicationContext ac  = new  Classpathxmlapplicationcontext ("Classpath:                ${prefixname}-spring.xml "); Readcodeservice readcodeservice  = (readcodeservice) ac.getbean ("Readcodeservice"                );    Readcodeservice.say (); }}

You can debug in, look at the source code. The underlying propertyplaceholderhelper will parse the replacement placeholder value.

Spring PLACEHOLDER Parser---propertyplaceholderhelper