The exception information is as follows:
Exception in thread "Main" Java. Lang. noclassdeffounderror: ORG/Apache/WS/commons/Schema/utils/namespaceprefixlist
At org. Apache. cxf. jaxws. jaxwsclientfactorybean. <init> (jaxwsclientfactorybean. Java: 38)
At org. Apache. cxf. jaxws. jaxwsproxyfactorybean. <init> (jaxwsproxyfactorybean. Java: 64)
At CN. navidog. Common. webwervice. Client. rankclient. <clinit> (rankclient. Java: 21)
At CN. navidog. Front. Users. testwebservice. Main (testwebservice. Java: 10)
Caused by: Java. Lang. classnotfoundexception: org. Apache. ws. commons. schema. utils. namespaceprefixlist
At java.net. urlclassloader $ 1.run( urlclassloader. Java: 202)
At java. Security. accesscontroller. doprivileged (native method)
At java.net. urlclassloader. findclass (urlclassloader. Java: 190)
At java. Lang. classloader. loadclass (classloader. Java: 307)
At sun. Misc. launcher $ appclassloader. loadclass (launcher. Java: 301)
At java. Lang. classloader. loadclass (classloader. Java: 248)
... 4 more
The reason is that the XMLSCHEMA. jar package is missing. You only need to import the jar to solve the problem.