Spring 上下文：属性占位符忽略未找到的资源
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Spring context:property-placeholder ignore resources not found
提问by kboom
I'd like to have some resources required but ignore other one if its missing... How to do that? As I see it I can only do
我想要一些资源，但如果缺少其他资源，则忽略其他资源......如何做到这一点？正如我所见，我只能做
<context:property-placeholder
ignore-resource-not-found="true"
location="required.properties, not-required-override.properties" />
Which affects every config listed mentioned there.
这会影响那里提到的每个配置。
// EDIT This is a working example
// 编辑 这是一个工作示例
<bean id="requiredProperties"
class="org.springframework.beans.factory.config.PropertiesFactoryBean">
<property name="locations">
<list>
<value>classpath:database.properties</value>
<value>classpath:storage.properties</value>
<value>classpath:log4j.properties</value>
<value>classpath:mailing.properties</value>
</list>
</property>
</bean>
<context:property-placeholder
properties-ref="requiredProperties" ignore-resource-not-found="true"
location="file:${user.dir}/config/cvnizer.properties" />
回答by M. Deinum
Add a PropertiesFactoryBeanelement for the required dependencies and simply wire the properties to the <context:property-placeholder />.
PropertiesFactoryBean为所需的依赖项添加一个元素，只需将属性连接到<context:property-placeholder />.
<bean id="requiredProperties" class="org.springframework.beans.factory.config.PropertiesFactoryBean">
<property name="locations" value="classpath:file1.properties,classpath:file2.properties" />
</bean>
<context:property-placeholder properties-ref="requiredProperties" ignore-resource-not-found="true" location="not-required-override.properties" />
The properties will me merged at runtime so you can still override when a properties file is read.
这些属性将在运行时合并，因此您仍然可以在读取属性文件时进行覆盖。
回答by Achilles Ram Nakirekanti
i think you can add like this also :
我想你也可以这样添加：
<context:property-placeholder location="/WEB-INF/properties/config.properties" order="1" ignore-unresolvable="true"/>
