From af602bb7e1386b7fe2246b58b430372472eba3b2 Mon Sep 17 00:00:00 2001
From: lwpro2 <lwpro2@live.com>
Date: Mon, 5 Apr 2021 16:41:19 +0800
Subject: [PATCH] make the property resolver configurable

---
 .../support/PropertySourcesPlaceholderConfigurer.java    | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/spring-context/src/main/java/org/springframework/context/support/PropertySourcesPlaceholderConfigurer.java b/spring-context/src/main/java/org/springframework/context/support/PropertySourcesPlaceholderConfigurer.java
index abbfec08ab2e..ff07ef8346bc 100644
--- a/spring-context/src/main/java/org/springframework/context/support/PropertySourcesPlaceholderConfigurer.java
+++ b/spring-context/src/main/java/org/springframework/context/support/PropertySourcesPlaceholderConfigurer.java
@@ -154,10 +154,17 @@ public String getProperty(String key) {
 			}
 		}
 
-		processProperties(beanFactory, new PropertySourcesPropertyResolver(this.propertySources));
+		processProperties(beanFactory, getPropertyResolver(this.propertySources));
 		this.appliedPropertySources = this.propertySources;
 	}
 
+	/**
+	 * Construct and provide a PropertyResolver from the given properties.
+	 */
+	public ConfigurablePropertyResolver getPropertyResolver(MutablePropertySources propertySources){
+		return new PropertySourcesPropertyResolver(propertySources);
+	}
+
 	/**
 	 * Visit each bean definition in the given bean factory and attempt to replace ${...} property
 	 * placeholders with values from the given properties.