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问答 数据库连接断开的问题？
发布于 2789天前 作者 qq_a930202f 8693 次浏览 复制 上一个帖子 下一个帖子
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哪里的问题呢？

2017-03-28 03:17:50 WARN org.nutz.mvc.impl.processor.FailProcessor.process(FailProcessor.java:28) Error@/back/export :
org.nutz.dao.DaoException: com.alibaba.druid.pool.DataSourceClosedException: dataSource already closed at Tue Mar 28 03:17:19 CST 2017
	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.NutDao.query(NutDao.java:452)
	at org.nutz.dao.impl.NutDao.query(NutDao.java:457)
	at org.nutz.service.EntityService.query(EntityService.java:279)
	at com.****.***.BackExportModule.all(BackExportModule.java:107)
	at com.****.***.BackExportModule$$FASTCLASS._invoke(BackExportModule.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.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.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.processor.AbstractProcessor.doNext(AbstractProcessor.java:44)
	at com.****.***.LogTimeProcessor.process(LogTimeProcessor.java:23)
	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:239)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.sitemesh.webapp.contentfilter.ContentBufferingFilter.bufferAndPostProcess(ContentBufferingFilter.java:169)
	at org.sitemesh.webapp.contentfilter.ContentBufferingFilter.doFilter(ContentBufferingFilter.java:126)
	at org.sitemesh.webapp.SiteMeshFilter.doFilter(SiteMeshFilter.java:120)
	at org.sitemesh.config.ConfigurableSiteMeshFilter.doFilter(ConfigurableSiteMeshFilter.java:163)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at com.alibaba.druid.support.http.WebStatFilter.doFilter(WebStatFilter.java:123)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:61)
	at org.apache.shiro.web.servlet.AdviceFilter.executeChain(AdviceFilter.java:108)
	at org.apache.shiro.web.servlet.AdviceFilter.doFilterInternal(AdviceFilter.java:137)
	at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
	at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:66)
	at org.apache.shiro.web.servlet.AbstractShiroFilter.executeChain(AbstractShiroFilter.java:449)
	at org.apache.shiro.web.servlet.AbstractShiroFilter$1.call(AbstractShiroFilter.java:365)
	at org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:90)
	at org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:83)
	at org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:383)
	at org.apache.shiro.web.servlet.AbstractShiroFilter.doFilterInternal(AbstractShiroFilter.java:362)
	at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
	at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:521)
	at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1096)
	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:674)
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1500)
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1456)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	at java.lang.Thread.run(Thread.java:745)
Caused by: com.alibaba.druid.pool.DataSourceClosedException: dataSource already closed at Tue Mar 28 03:17:19 CST 2017
	at com.alibaba.druid.pool.DruidDataSource.getConnectionInternal(DruidDataSource.java:1113)
	at com.alibaba.druid.pool.DruidDataSource.getConnectionDirect(DruidDataSource.java:1017)
	at com.alibaba.druid.filter.FilterChainImpl.dataSource_connect(FilterChainImpl.java:4544)
	at com.alibaba.druid.filter.FilterAdapter.dataSource_getConnection(FilterAdapter.java:2723)
	at com.alibaba.druid.filter.FilterChainImpl.dataSource_connect(FilterChainImpl.java:4540)
	at com.alibaba.druid.filter.stat.StatFilter.dataSource_getConnection(StatFilter.java:662)
	at com.alibaba.druid.filter.FilterChainImpl.dataSource_connect(FilterChainImpl.java:4540)
	at com.alibaba.druid.pool.DruidDataSource.getConnection(DruidDataSource.java:995)
	at com.alibaba.druid.pool.DruidDataSource.getConnection(DruidDataSource.java:987)
	at com.alibaba.druid.pool.DruidDataSource.getConnection(DruidDataSource.java:103)
	at org.nutz.dao.impl.sql.run.NutDaoRunner._runWithoutTransaction(NutDaoRunner.java:123)
	... 69 more
14 回复

仅有查询操作。多次，单次的数量也不是很大，1000条左右，每次查询完处理的时间可能较长。

一般原因是自行new NutIoc了

我也遇到同样的问题，哪应该怎么操作呢？

我的本意是：

Ioc ioc = new NutIoc(new JsonLoader("ioc/dao.js"));
DataSource dataSource = ioc.get(DataSource.class);

因为不知道怎么拿ioc容器，所以自行new了？

来自炫酷的 NutzCN

有个地方需要临时拿DataSource

不知道如何获取ioc容器？

来自炫酷的 NutzCN

我的本意是想取DataSource，通过：

Ioc ioc = new NutIoc(new JsonLoader("ioc/dao.js"));
DataSource dataSource = ioc.get(DataSource.class);

不知道这样合理不合理

项目本身已经有了DAO。项目启动时，但在有个地方又需要将DataSource给一个第三方的插件用。第三方的插件不是NUTZ的。

那从现有ioc容器取DataSource啊

来自炫酷的 NutzCN

Ioc ioc = new NutIoc(new JsonLoader("ioc/dao.js"));
DataSource dataSource = ioc.get(DataSource.class);

是不是象这样？？我象这样后，就经常会出现楼主的这个问题。

com.alibaba.druid.pool.DataSourceClosedException: dataSource already closed

为啥不从现有ioc容器取DataSource? 是不会还是不能?

怎么取啊？？？哈哈哈。

http://nutzam.com/core/ioc/ioc_by_hand.html

这，感谢啊。太感谢了。

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