2021-01-14 13:52:31,830 org.nutz.dao.impl.sql.run.NutDaoExecutor.printSQL(NutDaoExecutor.java:388) DEBUG - select comm.sick_id_seq.nextval from dual
java.lang.NullPointerException
	at org.nutz.dao.impl.sql.NutStatement.getInt(NutStatement.java:129)
	at net.mjxzyy.gzhws.webservice.GzhWs$1.run(GzhWs.java:61)
	at org.nutz.trans.Trans.exec(Trans.java:174)
	at org.nutz.trans.Trans.exec(Trans.java:132)
	at net.mjxzyy.gzhws.webservice.GzhWs.RegSick(GzhWs.java:39)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at sun.reflect.misc.Trampoline.invoke(MethodUtil.java:71)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at sun.reflect.misc.MethodUtil.invoke(MethodUtil.java:275)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at com.sun.xml.internal.ws.api.server.MethodUtil.invoke(MethodUtil.java:68)
	at com.sun.xml.internal.ws.api.server.InstanceResolver$1.invoke(InstanceResolver.java:235)
	at com.sun.xml.internal.ws.server.InvokerTube$2.invoke(InvokerTube.java:134)
	at com.sun.xml.internal.ws.server.sei.SEIInvokerTube.processRequest(SEIInvokerTube.java:73)
	at com.sun.xml.internal.ws.api.pipe.Fiber.__doRun(Fiber.java:1121)
	at com.sun.xml.internal.ws.api.pipe.Fiber._doRun(Fiber.java:1035)
	at com.sun.xml.internal.ws.api.pipe.Fiber.doRun(Fiber.java:1004)
	at com.sun.xml.internal.ws.api.pipe.Fiber.runSync(Fiber.java:862)
	at com.sun.xml.internal.ws.server.WSEndpointImpl$2.process(WSEndpointImpl.java:404)
	at com.sun.xml.internal.ws.transport.http.HttpAdapter$HttpToolkit.handle(HttpAdapter.java:706)
	at com.sun.xml.internal.ws.transport.http.HttpAdapter.handle(HttpAdapter.java:260)
	at com.sun.xml.internal.ws.transport.http.server.WSHttpHandler.handleExchange(WSHttpHandler.java:98)
	at com.sun.xml.internal.ws.transport.http.server.WSHttpHandler.handle(WSHttpHandler.java:82)
	at com.sun.net.httpserver.Filter$Chain.doFilter(Filter.java:79)
	at sun.net.httpserver.AuthFilter.doFilter(AuthFilter.java:83)
	at com.sun.net.httpserver.Filter$Chain.doFilter(Filter.java:82)
	at sun.net.httpserver.ServerImpl$Exchange$LinkHandler.handle(ServerImpl.java:675)
	at com.sun.net.httpserver.Filter$Chain.doFilter(Filter.java:79)
	at sun.net.httpserver.ServerImpl$Exchange.run(ServerImpl.java:647)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)

Sql sickIdSeqSql = Sqls.create("select comm.sick_id_seq.nextval from dual");
							dao.execute(sickIdSeqSql);
							System.out.print(sickIdSeqSql.getInt());
							sickId = String.valueOf(sickIdSeqSql.getInt());