在用Java web和hbase連接時，報出來這個錯誤，一開始我以為是hbase導入的包位置不對，不從build path那里導入，而是從WEB-INF下的lib中導入，嘗試了之后結果仍是這個錯誤
十月 19, 2018 8:18:10 下午 org.apache.catalina.core.StandardWrapperValve invoke
嚴重: 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)
后來我就運行了原來的能成功運行的hbase（java實現的）和hdfs(java實現的）代碼，這些都是參照慕課網林子雨大數據教程里提示給的代碼，結果hdfs的能成功運行，hbase的運行錯誤，在命令行jps后，發現顯示的不對，顯示結果如下：
正常的應該是如下圖：
由於暫時不知道怎么改，所以只好重裝了一次hbase，命令行輸入jps后才能正確顯示，待找到正確解決辦法再更博，此次博客僅作為暫時錯誤記錄。
更新：
在網上搜了搜關於此類HRegionServer和Hmaster消失的問題，可以參考以下網站;
https://segmentfault.com/q/1010000000606670
https://blog.csdn.net/awawfwfw/article/details/50856487