ClassNotFoundException:org.exolab.castor.xml.XMLException

問題

在Spring OXM(物件XML對映)，將物件轉換為XML檔案時，它會產生以下錯誤資訊：

Caused by: java.lang.ClassNotFoundException: org.exolab.castor.xml.XMLException
	at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
	at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
	... 29 more

castor資料系結包含在Spring OXM框架？

解決

castor 是一種可選的依賴於spring-oxm.jar，用castor來編組或在Spring OXM解組XML，新增該Spring依賴到 Maven pom.xml 檔案。

<dependencies>

		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-oxm</artifactId>
			<version>3.0.5.RELEASE</version>
		</dependency>

		<!-- Uses Castor for XML -->
		<dependency>
			<groupId>org.codehaus.castor</groupId>
			<artifactId>castor</artifactId>
			<version>1.2</version>
		</dependency>

		<!-- Castor need this -->
		<dependency>
			<groupId>xerces</groupId>
			<artifactId>xercesImpl</artifactId>
			<version>2.8.1</version>
		</dependency>

	</dependencies>