OpenSessionInViewFilter 过滤器的顺序对吗？

Question

<filter>
<filter-name>webwork</filter-name>
<filter-class>
com.opensymphony.webwork.dispatcher.FilterDispatcher
</filter-class>
</filter> <filter>
<filter-name>hibernateFilter</filter-name>
<filter-class>
org.springframework.orm.hibernate3.support.OpenSessionInViewFilter
</filter-class>
<init-param>
<param-name>singleSession</param-name>
<param-value>true</param-value>
</init-param>
</filter> <filter>
<filter-name>Encoding</filter-name>
<filter-class>
org.springframework.web.filter.CharacterEncodingFilter
</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
<init-param>
<param-name>forceEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>请问下 这样的过滤器顺序配置 对吗？

Answer 1

<filter> 
<filter-name>hibernateFilter </filter-name> 
<filter-class> 
org.springframework.orm.hibernate3.support.OpenSessionInViewFilter 
</filter-class> 
<init-param> 
<param-name>singleSession </param-name> 
<param-value>true </param-value> 
</init-param> 
</filter>  这段放前面

Answer 2

<filter>  (过滤器①)
<filter-name>ActionContextCleanUp</filter-name>
<filter-class>
com.opensymphony.webwork.dispatcher.ActionContextCleanUp
</filter-class>
</filter> <filter> (过滤器②)
<filter-name>webwork</filter-name>
<filter-class>
com.opensymphony.webwork.dispatcher.FilterDispatcher
</filter-class>
</filter> <filter> (过滤器③)
<filter-name>hibernateFilter</filter-name>
<filter-class>
org.springframework.orm.hibernate3.support.OpenSessionInViewFilter
</filter-class>
<init-param>
<param-name>singleSession</param-name>
<param-value>true</param-value>
</init-param>
</filter> <filter> (过滤器④)
<filter-name>Encoding</filter-name>
<filter-class>
org.springframework.web.filter.CharacterEncodingFilter
</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
<init-param>
<param-name>forceEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>帮我排下顺序吧 ？  为什么要这样做呢？

Answer 3

1.Encoding 
2.hibernateFilter 
3.ActionContextCleanUp 
4.webwork 3,4不知道有无顺序要求，
encoding解释下为什么排第一
一些情况下，encoding可能会被修改
所以在encoding 设置完编码后在调用一下request.getParameter("随意")
调用后编码就被固化了，不能在被修改了。排在第一最保险，而且这个里面没什么逻辑。不会影响其他的。
我只遇到过一次这种情况，放第一个不会有错相信我hibernateFilter 这个好理解，你必须在使用session之前绑定是吧，否则都用完session了，你绑定也没用了。

Answer 4

我现在这个系统 的配置信息就我刚才粘上去的那段！！ 
现在系统维护过程中 经常会报
ERROR 2008-10-15 20:12:01,611 [[ACTIVE] ExecuteThread: '0' for queue: 'weblogic.kernel.Default (self-tuning)'] org.hibernate.transaction.JDBCTransaction     - JDBC commit failed
java.sql.SQLException: 关闭的连接
        at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:112)
        at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:146)
        at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:208)
        at oracle.jdbc.driver.PhysicalConnection.commit(PhysicalConnection.java:1112)
        ......
(WebAppServletContext.java:3212)
        at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
        at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:121)
        at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:1983)
        at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:1890)
        at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1344)
        at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)
        at weblogic.work.ExecuteThread.run(ExecuteThread.java:181)
ERROR 2008-10-15 20:12:01,612 [[ACTIVE] ExecuteThread: '0' for queue: 'weblogic.kernel.Default (self-tuning)'] com.opensymphony.webwork.dispatcher.DispatcherUtils     - Could not execute action
org.springframework.transaction.TransactionSystemException: Could not commit Hibernate transaction; nested exception is org.hibernate.TransactionException: JDBC commit failed
org.hibernate.TransactionException: JDBC commit failed
        at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:110)
        at org.springframework.orm.hibernate3.HibernateTransactionManager.doCommit(HibernateTransactionManager.java:584)
        at org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:500)
        at org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:473)
  ......
        at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:42)
        at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal
        ......
        at com.zjpublic.webapps.filter.LoginFilter.doFilter(LoginFilter.java:147)
        at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:42)
        at cn.com.zjtelecom.sso.client.filter.CASFilter.doFilter(CASFilter.java:352)
        at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:42)
        ........
        at weblogic.work.ExecuteThread.run(ExecuteThread.java:181)
Caused by: java.sql.SQLException: 关闭的连接
        at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:112)
        at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:146)
        at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:208)
        at oracle.jdbc.driver.PhysicalConnection.commit(PhysicalConnection.java:1112)
        at org.apache.commons.dbcp.DelegatingConnection.commit(DelegatingConnection.java:238)
        at org.apache.commons.dbcp.PoolingDataSource$PoolGuardConnectionWrapper.commit(PoolingDataSource.java:199)
        at org.hibernate.transaction.JDBCTransaction.commitAndResetAutoCommit(JDBCTransaction.java:119)
        at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:95)
        ... 64 more
WARN  2008-10-15 20:12:01,613 [[ACTIVE] ExecuteThread: '0' for queue: 'weblogic.kernel.Default (self-tuning)'] org.hibernate.util.JDBCExceptionReporter     - SQL Error: 0, SQLState: null
ERROR 2008-10-15 20:12:01,614 [[ACTIVE] ExecuteThread: '0' for queue: 'weblogic.kernel.Default (self-tuning)'] org.hibernate.util.JDBCExceptionReporter     - Already closed.
WARN  2008-10-15 20:12:01,614 [[ACTIVE] ExecuteThread: '0' for queue: 'weblogic.kernel.Default (self-tuning)'] org.hibernate.util.JDBCExceptionReporter     - SQL Error: 0, SQLState: null
ERROR 2008-10-15 20:12:01,614 [[ACTIVE] ExecuteThread: '0' for queue: 'weblogic.kernel.Default (self-tuning)'] org.hibernate.util.JDBCExceptionReporter     - Already closed.
ERROR 2008-10-15 20:12:01,615 [[ACTIVE] ExecuteThread: '0' for queue: 'weblogic.kernel.Default (self-tuning)'] org.springframework.orm.hibernate3.SessionFactoryUtils     - Could not close Hibernate Session
org.hibernate.exception.GenericJDBCException: Cannot close connection
        at org.hibernate.exception.ErrorCodeConverter.handledNonSpecificException(ErrorCodeConverter.java:92)
        at org.hibernate.exception.ErrorCodeConverter.convert(ErrorCodeConverter.java:80)
        at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)
        at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:29)
        at org.hibernate.jdbc.ConnectionManager.closeConnection(ConnectionManager.java:331)
        at org.hibernate.jdbc.ConnectionManager.cleanup(ConnectionManager.java:262)
        at org.hibernate.jdbc.ConnectionManager.close(ConnectionManager.java:194)
        at org.hibernate.impl.SessionImpl.close(SessionImpl.java:289)
        at org.springframework.orm.hibernate3.SessionFactoryUtils.doClose(SessionFactoryUtils.java:787)
        at org.springframework.orm.hibernate3.SessionFactoryUtils.processDeferredClose(SessionFactoryUtils.java:717)
        at org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:192)
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:77)
        at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:42)
        at com.zjpublic.webapps.filter.SessionOuttimeFilter.doFilter(SessionOuttimeFilter.java:60)
        at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:42)
        at com.zjpublic.webapps.filter.PermissionFilter.doFilter(PermissionFilter.java:91)
        at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:42)
        at com.zjpublic.webapps.filter.LoginFilter.doFilter(LoginFilter.java:147)
        at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:42)
        at cn.com.zjtelecom.sso.client.filter.CASFilter.doFilter(CASFilter.java:352)
        at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:42)
        at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3212)
        at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
        at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:121)
        at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:1983)
        at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:1890)
        at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1344)
        at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)
        at weblogic.work.ExecuteThread.run(ExecuteThread.java:181)
Caused by: java.sql.SQLException: Already closed.
        at org.apache.commons.dbcp.PoolableConnection.close(PoolableConnection.java:77)
        at org.apache.commons.dbcp.PoolingDataSource$PoolGuardConnectionWrapper.close(PoolingDataSource.java:180)
        at org.springframework.orm.hibernate3.LocalDataSourceConnectionProvider.closeConnection(LocalDataSourceConnectionProvider.java:95)
        at org.hibernate.jdbc.ConnectionManager.closeConnection(ConnectionManager.java:327)
        ... 24 more

Answer 5

按我说的配，你的程序经常是close了已经关闭的conn