Spring2.5.6 OSGi
升级到spring3.0 SpringDM2.0 OSGi
升级报错:
WARNING: Cannot work with attribute http://java.sun.com/xml/jaxp/properties/schemaSource - configurations w/o a schema locations will likely fail to validate
java.lang.IllegalArgumentException: jaxp-order-not-supported: Property 'http://java.sun.com/xml/jaxp/properties/schemaLanguage' must be set before setting property 'http://java.sun.com/xml/jaxp/properties/schemaSource'.
at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderFactoryImpl.setAttribute(DocumentBuilderFactoryImpl.java:112)
at org.springframework.osgi.context.support.BlueprintDocumentLoader.createDocumentBuilderFactory(BlueprintDocumentLoader.java:45)
解决办法:
发现有些bundle 中的定义如下:
<?xml...
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">
<beans>
....
解决方案:
把
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">
<beans>
替换为:
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">
错误不报了。
本文介绍从Spring 2.5.6与OSGi升级到Spring 3.0与Spring DM 2.0 OSGi的过程中遇到的警告及解决方法。主要问题在于XML配置文件的DTD声明方式不再适用,通过将DTD声明替换为XSD schemaLocation属性来解决。
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