嚴重: Servlet.service() for servlet [weixinServlet] in context with path [/WeixinServlet] threw exception [Servlet execution threw an exception] with root causejava.lang.ClassNotFoundException: com.thoughtworks.xstream.XStream at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1858) at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1701) at com.weixin.util.MessageUtil.textMessageToXml(MessageUtil.java:57) at com.weixin.servlet.WeixinServlet.doPost(WeixinServlet.java:70) at javax.servlet.http.HttpServlet.service(HttpServlet.java:650) at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)