无法将 NULL 值插入列 'keyid'

insert into systemmailnotify (subject,mailid,mailfrom,mailto,status) values('1341',32,'admin@waytide.com','test@waytide.com',0) com.microsoft.sqlserver.jdbc.SQLServerException: 无法将 NULL 值插入列 'keyid'，表 'wayoa.dbo.SystemMailNotify'；该列不允许空值。INSERT 失败。 at com.microsoft.sqlserver.jdbc.SQLServerException.makeFromDatabaseError(Unknown Source) at com.microsoft.sqlserver.jdbc.IOBuffer.processPackets(Unknown Source) at com.microsoft.sqlserver.jdbc.SQLServerStatement.sendExecute(Unknown Source) at com.microsoft.sqlserver.jdbc.SQLServerStatement.doExecuteUpdate(Unknown Source) at com.microsoft.sqlserver.jdbc.SQLServerPreparedStatement.executeUpdate(Unknown Source) at org.apache.jsp.admin.mail.send_005fdb_jsp._jspService(send_005fdb_jsp.java:448) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:390) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:228) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:212) at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:866) at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:716) at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1498) at java.lang.Thread.run(Thread.java:619)

解决方法：

设置主键为“标识”自动增长就可以了。