2018-07-16 10:52
#for循环只能在页面加载时运行一次
之后的下拉获取新数据是通过jq添加到页面的，跟#for一毛钱关系也没有
如果你确定数据确实获取到了，试试这样：
$('....').append($('新数据'));
2018-07-12 10:15
为你的项目写一个BaseService是必须的
可以写成抽象类，提供常用的上下文操作、ORM操作
然后各业务Service全部继承这个BaseService，同时实现单列
Controller中直接引用这个单列的Service即可
再高级一点，利用guice实现业务Service的注入
再再高级一点，为每个Model自动生成对应的Service
2018-07-03 14:56
@JFinal 试了很多次还是不行，最后没办法，用cookie写了另一种session实现，仅供开发模式时使用
2018-07-03 10:42
换成JFinalDemo，停止服务时也会报同样的错误：
--------------------------------------------------------
03-Jul-2018 10:40:03.544 信息 [Thread-6] org.apache.coyote.AbstractProtocol.pause Pausing ProtocolHandler ["http-nio-8080"]
03-Jul-2018 10:40:03.607 信息 [Thread-6] org.apache.coyote.AbstractProtocol.pause Pausing ProtocolHandler ["ajp-nio-8009"]
03-Jul-2018 10:40:03.669 信息 [Thread-6] org.apache.catalina.core.StandardService.stopInternal Stopping service Catalina
03-Jul-2018 10:40:03.684 警告 [localhost-startStop-2] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesJdbc The web application [ROOT] registered the JDBC driver [com.alibaba.druid.proxy.DruidDriver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered.
03-Jul-2018 10:40:03.684 警告 [localhost-startStop-2] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesJdbc The web application [ROOT] registered the JDBC driver [com.mysql.jdbc.Driver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered.
03-Jul-2018 10:40:03.700 警告 [localhost-startStop-2] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [ROOT] appears to have started a thread named [Abandoned connection cleanup thread] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
java.lang.Object.wait(Native Method)
java.lang.ref.ReferenceQueue.remove(Unknown Source)
com.mysql.jdbc.AbandonedConnectionCleanupThread.run(AbandonedConnectionCleanupThread.java:64)
java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
java.lang.Thread.run(Unknown Source)
03-Jul-2018 10:40:03.700 严重 [localhost-startStop-2] org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks The web application [ROOT] created a ThreadLocal with key of type [com.jfinal.template.io.WriterBuffer$1] (value [com.jfinal.template.io.WriterBuffer$1@15900742]) and a value of type [com.jfinal.template.io.ByteWriter] (value [com.jfinal.template.io.ByteWriter@19353706]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
03-Jul-2018 10:40:03.700 严重 [localhost-startStop-2] org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks The web application [ROOT] created a ThreadLocal with key of type [com.jfinal.template.io.WriterBuffer$1] (value [com.jfinal.template.io.WriterBuffer$1@15900742]) and a value of type [com.jfinal.template.io.ByteWriter] (value [com.jfinal.template.io.ByteWriter@69ddc37b]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
03-Jul-2018 10:40:03.700 严重 [localhost-startStop-2] org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks The web application [ROOT] created a ThreadLocal with key of type [com.jfinal.template.io.WriterBuffer$1] (value [com.jfinal.template.io.WriterBuffer$1@15900742]) and a value of type [com.jfinal.template.io.ByteWriter] (value [com.jfinal.template.io.ByteWriter@30a252ae]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
03-Jul-2018 10:40:03.700 严重 [localhost-startStop-2] org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks The web application [ROOT] created a ThreadLocal with key of type [com.jfinal.template.io.WriterBuffer$1] (value [com.jfinal.template.io.WriterBuffer$1@15900742]) and a value of type [com.jfinal.template.io.ByteWriter] (value [com.jfinal.template.io.ByteWriter@259df9ef]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
03-Jul-2018 10:40:03.700 严重 [localhost-startStop-2] org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks The web application [ROOT] created a ThreadLocal with key of type [com.jfinal.template.io.WriterBuffer$1] (value [com.jfinal.template.io.WriterBuffer$1@15900742]) and a value of type [com.jfinal.template.io.ByteWriter] (value [com.jfinal.template.io.ByteWriter@12e1b889]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
03-Jul-2018 10:40:03.700 严重 [localhost-startStop-2] org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks The web application [ROOT] created a ThreadLocal with key of type [com.jfinal.template.io.WriterBuffer$1] (value [com.jfinal.template.io.WriterBuffer$1@15900742]) and a value of type [com.jfinal.template.io.ByteWriter] (value [com.jfinal.template.io.ByteWriter@3074af59]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
03-Jul-2018 10:40:03.700 严重 [localhost-startStop-2] org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks The web application [ROOT] created a ThreadLocal with key of type [com.jfinal.template.io.WriterBuffer$1] (value [com.jfinal.template.io.WriterBuffer$1@15900742]) and a value of type [com.jfinal.template.io.ByteWriter] (value [com.jfinal.template.io.ByteWriter@7aec6a39]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
03-Jul-2018 10:40:03.700 严重 [localhost-startStop-2] org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks The web application [ROOT] created a ThreadLocal with key of type [com.jfinal.template.io.WriterBuffer$1] (value [com.jfinal.template.io.WriterBuffer$1@15900742]) and a value of type [com.jfinal.template.io.ByteWriter] (value [com.jfinal.template.io.ByteWriter@6c60e0a6]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
03-Jul-2018 10:40:03.700 信息 [Thread-6] org.apache.coyote.AbstractProtocol.stop Stopping ProtocolHandler ["http-nio-8080"]
03-Jul-2018 10:40:03.700 信息 [Thread-6] org.apache.coyote.AbstractProtocol.stop Stopping ProtocolHandler ["ajp-nio-8009"]
@JFinal
2018-07-03 09:33
@JFinal 很遗憾啊波总
我试了8.5.23、8.5.32（当前8.5.X最新）
又试了8.0.X的最后一个stable版本：8.0.52，全部都提示异常：
03-Jul-2018 09:29:24.761 警告 [localhost-startStop-2] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesJdbc The web application [ROOT] registered the JDBC driver [com.alibaba.druid.proxy.DruidDriver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered.
03-Jul-2018 09:29:24.761 警告 [localhost-startStop-2] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesJdbc The web application [ROOT] registered the JDBC driver [com.mysql.jdbc.Driver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered.
03-Jul-2018 09:29:24.761 警告 [localhost-startStop-2] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [ROOT] appears to have started a thread named [CaptchaCache] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
java.lang.Object.wait(Native Method)
java.util.TimerThread.mainLoop(Unknown Source)
java.util.TimerThread.run(Unknown Source)
03-Jul-2018 09:29:24.761 严重 [localhost-startStop-2] org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks The web application [ROOT] created a ThreadLocal with key of type [com.jfinal.template.io.WriterBuffer$2] (value [com.jfinal.template.io.WriterBuffer$2@2ba20fd]) and a value of type [com.jfinal.template.io.CharWriter] (value [com.jfinal.template.io.CharWriter@75b2024b]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
03-Jul-2018 09:29:24.761 严重 [localhost-startStop-2] org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks The web application [ROOT] created a ThreadLocal with key of type [com.jfinal.template.io.WriterBuffer$3] (value [com.jfinal.template.io.WriterBuffer$3@50a57129]) and a value of type [com.jfinal.template.io.FastStringWriter] (value []) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
03-Jul-2018 09:29:24.761 严重 [localhost-startStop-2] org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks The web application [ROOT] created a ThreadLocal with key of type [com.jfinal.template.io.WriterBuffer$1] (value [com.jfinal.template.io.WriterBuffer$1@5bc132e]) and a value of type [com.jfinal.template.io.ByteWriter] (value [com.jfinal.template.io.ByteWriter@56d276ac]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
03-Jul-2018 09:29:24.761 严重 [localhost-startStop-2] org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks The web application [ROOT] created a ThreadLocal with key of type [com.jfinal.template.io.WriterBuffer$2] (value [com.jfinal.template.io.WriterBuffer$2@2ba20fd]) and a value of type [com.jfinal.template.io.CharWriter] (value [com.jfinal.template.io.CharWriter@48c09515]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
03-Jul-2018 09:29:24.761 严重 [localhost-startStop-2] org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks The web application [ROOT] created a ThreadLocal with key of type [com.jfinal.template.io.WriterBuffer$3] (value [com.jfinal.template.io.WriterBuffer$3@50a57129]) and a value of type [com.jfinal.template.io.FastStringWriter] (value []) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
03-Jul-2018 09:29:24.761 严重 [localhost-startStop-2] org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks The web application [ROOT] created a ThreadLocal with key of type [com.jfinal.template.io.WriterBuffer$2] (value [com.jfinal.template.io.WriterBuffer$2@2ba20fd]) and a value of type [com.jfinal.template.io.CharWriter] (value [com.jfinal.template.io.CharWriter@6822ae4a]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
03-Jul-2018 09:29:24.761 严重 [localhost-startStop-2] org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks The web application [ROOT] created a ThreadLocal with key of type [com.jfinal.template.io.WriterBuffer$3] (value [com.jfinal.template.io.WriterBuffer$3@50a57129]) and a value of type [com.jfinal.template.io.FastStringWriter] (value []) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
2018-07-03 08:45
每个action都需要render...，除非抛出异常
如果你没有显示的调用render...，那么JFinal会自动调用render(actionKey)
