在用Java web和hbase连接时，报出来这个错误，一开始我以为是hbase导入的包位置不对，不从build path那里导入，而是从WEB-INF下的lib中导入，尝试了之后结果仍是这个错误
十月 19, 2018 8:18:10 下午 org.apache.catalina.core.StandardWrapperValve invoke
严重: Servlet.service() for servlet [jsp] in context with path [/Test] threw exception [javax.servlet.ServletException: java.lang.NoClassDefFoundError: org/apache/hadoop/hbase/HBaseConfiguration] with root cause
java.lang.ClassNotFoundException: org.apache.hadoop.hbase.HBaseConfiguration
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1928)
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1771)
at com.test.ExampleForHbase.init(ExampleForHbase.java:53)
at com.test.ExampleForHbase.insertRow(ExampleForHbase.java:135)
at org.apache.jsp._111put_jsp._jspService(_111put_jsp.java:97)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:453)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:395)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:339)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:110)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:494)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:1025)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:445)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1137)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:637)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:318)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:622)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:748)
后来我就运行了原来的能成功运行的hbase（java实现的）和hdfs(java实现的）代码，这些都是参照慕课网林子雨大数据教程里提示给的代码，结果hdfs的能成功运行，hbase的运行错误，在命令行jps后，发现显示的不对，显示结果如下：
正常的应该是如下图：
由于暂时不知道怎么改，所以只好重装了一次hbase，命令行输入jps后才能正确显示，待找到正确解决办法再更博，此次博客仅作为暂时错误记录。
更新：
在网上搜了搜关于此类HRegionServer和Hmaster消失的问题，可以参考以下网站;
https://segmentfault.com/q/1010000000606670
https://blog.csdn.net/awawfwfw/article/details/50856487