代码
Sql sql = Sqls.create("SHOW FULL COLUMNS FROM " + tableName);
sql.setCallback(new SqlCallback() {
@Override
public Object invoke(Connection conn, ResultSet rs, Sql sql)
throws SQLException {
List<Map<String, String>> list = new ArrayList<>();
while (rs.next()) {
Map<String, String> map = new HashMap<String, String>();
map.put("field", rs.getString("Field"));
map.put("type", rs.getString("Type"));
map.put("isNull", rs.getString("Null"));
map.put("key", rs.getString("Key"));
map.put("default", rs.getString("Default"));
map.put("extra", rs.getString("Extra"));
list.add(map);
}
return list;
}
});
dao.execute(sql);
日志：
[INFO ] 09:42:55.911 org.nutz.dao.impl.sql.run.NutDaoExecutor.exec(NutDaoExecutor.java:82) - Can't identify SQL type : SHOW FULL COLUMNS FROM image
[WARN ] 09:43:03.947 org.nutz.mvc.impl.processor.FailProcessor.process(FailProcessor.java:28) - Error@/codeGenerat/generate :
org.nutz.dao.DaoException: java.lang.NullPointerException
at org.nutz.dao.impl.sql.run.NutDaoRunner._runWithoutTransaction(NutDaoRunner.java:139)
at org.nutz.dao.impl.sql.run.NutDaoRunner._run(NutDaoRunner.java:92)
at org.nutz.dao.impl.sql.run.NutDaoRunner.run(NutDaoRunner.java:81)
at org.nutz.dao.impl.DaoSupport.run(DaoSupport.java:240)
at org.nutz.dao.impl.DaoSupport._exec(DaoSupport.java:248)
at org.nutz.dao.impl.DaoSupport.execute(DaoSupport.java:236)
at org.nutz.dao.impl.NutDao.execute(NutDao.java:973)
at com.ilanchuang.xiaoi.admin.controller.CodeGenerationController.generateCode(CodeGenerationController.java:105)
at com.ilanchuang.xiaoi.admin.controller.CodeGenerationController$$FASTCLASS._invoke(CodeGenerationController.java:1)
at org.nutz.lang.reflect.AbstractFastClass.invoke(AbstractFastClass.java:143)
at org.nutz.lang.reflect.FastClassFactory.invoke(FastClassFactory.java:67)
at org.nutz.mvc.impl.processor.MethodInvokeProcessor.process(MethodInvokeProcessor.java:27)
at org.nutz.mvc.impl.processor.AbstractProcessor.doNext(AbstractProcessor.java:44)
at org.nutz.plugins.validation.ValidationProcessor.process(ValidationProcessor.java:39)
at org.nutz.mvc.impl.processor.AbstractProcessor.doNext(AbstractProcessor.java:44)
at org.nutz.mvc.impl.processor.AdaptorProcessor.process(AdaptorProcessor.java:33)
at org.nutz.mvc.impl.processor.AbstractProcessor.doNext(AbstractProcessor.java:44)
at org.nutz.mvc.impl.processor.ActionFiltersProcessor.process(ActionFiltersProcessor.java:58)
at org.nutz.mvc.impl.processor.AbstractProcessor.doNext(AbstractProcessor.java:44)
at org.nutz.integration.shiro.NutShiroProcessor.process(NutShiroProcessor.java:128)
at org.nutz.mvc.impl.processor.AbstractProcessor.doNext(AbstractProcessor.java:44)
at org.nutz.mvc.impl.processor.ModuleProcessor.process(ModuleProcessor.java:123)
at org.nutz.mvc.impl.processor.AbstractProcessor.doNext(AbstractProcessor.java:44)
at org.nutz.mvc.impl.processor.EncodingProcessor.process(EncodingProcessor.java:27)
at org.nutz.mvc.impl.processor.AbstractProcessor.doNext(AbstractProcessor.java:44)
at org.nutz.mvc.impl.processor.UpdateRequestAttributesProcessor.process(UpdateRequestAttributesProcessor.java:15)
at org.nutz.mvc.impl.NutActionChain.doChain(NutActionChain.java:44)
at org.nutz.mvc.impl.ActionInvoker.invoke(ActionInvoker.java:67)
at org.nutz.mvc.ActionHandler.handle(ActionHandler.java:31)
at org.nutz.mvc.NutFilter.doFilter(NutFilter.java:198)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.apache.shiro.web.servlet.AbstractShiroFilter.executeChain(AbstractShiroFilter.java:449)
at org.apache.shiro.web.servlet.AbstractShiroFilter$1.call(AbstractShiroFilter.java:365)
at org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:90)
at org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:83)
at org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:383)
at org.apache.shiro.web.servlet.AbstractShiroFilter.doFilterInternal(AbstractShiroFilter.java:362)
at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:509)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1104)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:684)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1520)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1476)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Unknown Source)
