jox java对象转换xml

Question

错误信息： 
Exception   in   thread   "main "   java.lang.NoClassDefFoundError:   org/apache/xml/serialize/OutputFormat 
at   com.wutka.jox.JOXBeanOutputStream.setupSink(JOXBeanOutputStream.java:173) 
at   com.wutka.jox.JOXBeanOutputStream. <init> (JOXBeanOutputStream.java:82) 
at   com.jox.main.JoxMain.toXML(JoxMain.java:49) 
at   com.jox.main.JoxMain.main(JoxMain.java:79) 
Caused   by:   java.lang.ClassNotFoundException:   org.apache.xml.serialize.OutputFormat 
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) 
...   4   more

jar包打了，代码是不报错的，运行报错