Apache-Mina FTPServer 数据库用户管理器故障

【问题标题】：Apache-Mina FTPServer Database User Manager failureApache-Mina FTPServer 数据库用户管理器故障
【发布时间】：2011-07-15 18:23:02
【问题描述】：

我正在尝试使用 Apache FTPServer 设置基于 Windows 的 FTP 服务器，但是每当我使用 db-user-manager 而不是 file-user-manager 时，我都会遇到同样的问题。我们的数据库中有近 6,000 个用户要迁移到 Windows，因此文件用户管理器是不够的（因为大小将是巨大的）。我已经使用 WAMP 创建了本地 SQL 服务器并将其设置为供 Apache FTP 使用，并且有一个脚本可以每天查询/复制/组织远程数据库中的用户到本地。

我遇到的问题是，无论出于何种原因，每当我运行程序时，Apache FTPServer 都会不断给我以下错误：

org.springframework.beans.factory.xml.XmlBeanDefinitionStoreException: Line 27 in XML document from file [c:\apache-ftpserver-1.0.5\res\conf\ftpd-full.xml] is invalid; 
nested exception is org.xml.sax.SAXParseException: The prefix "beans" for element "beans:bean" is not bound.
    at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:404)
    at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:342)
    at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:310)
    at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:143)
    at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:178)
    at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:149)
    at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:212)
    at org.springframework.context.support.AbstractXmlApplicationContext.loadBeanDefinitions(AbstractXmlApplicationContext.java:113)
    at org.springframework.context.support.AbstractXmlApplicationContext.loadBeanDefinitions(AbstractXmlApplicationContext.java:80)
    at org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:123)
    at org.springframework.context.support.AbstractApplicationContext.obtainFreshBeanFactory(AbstractApplicationContext.java:423)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:353)
    at org.springframework.context.support.FileSystemXmlApplicationContext.<init>(FileSystemXmlApplicationContext.java:140)
    at org.springframework.context.support.FileSystemXmlApplicationContext.<init>(FileSystemXmlApplicationContext.java:84)
    at org.apache.ftpserver.main.CommandLine.getConfiguration(CommandLine.java:132)
    at org.apache.ftpserver.main.CommandLine.main(CommandLine.java:56)
Caused by: org.xml.sax.SAXParseException: The prefix "beans" for element "beans:bean" is not bound.
    at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapper.java:195)
    at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.fatalError(ErrorHandlerWrapper.java:174)
    at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:388)
    at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:318)
    at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanStartElement(XMLNSDocumentScannerImpl.java:310)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:2755)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:648)
    at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(XMLNSDocumentScannerImpl.java:140)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:511)
    at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:808)
    at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:737)
    at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:119)
    at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(DOMParser.java:235)
    at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:284)
    at org.springframework.beans.factory.xml.DefaultDocumentLoader.loadDocument(DefaultDocumentLoader.java:75)
    at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:396)
    ... 15 more

我还是不明白...为什么它不起作用？

这是我的 xml 文件：

<?xml version="1.0" encoding="UTF-8"?>
    <!--
        Licensed to the Apache Software Foundation (ASF) under one or more
        contributor license agreements. See the NOTICE file distributed with
        this work for additional information regarding copyright ownership.
        The ASF licenses this file to you under the Apache License, Version
        2.0 (the "License"); you may not use this file except in compliance
        with the License. You may obtain a copy of the License at
        http://www.apache.org/licenses/LICENSE-2.0 Unless required by
        applicable law or agreed to in writing, software distributed under the
        License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
        CONDITIONS OF ANY KIND, either express or implied. See the License for
        the specific language governing permissions and limitations under the
        License.
    -->
<server xmlns="http://mina.apache.org/ftpserver/spring/v1"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="
       http://mina.apache.org/ftpserver/spring/v1 http://mina.apache.org/ftpserver/ftpserver-1.0.xsd    
       "
    id="Prometheus">
    <listeners>
        <nio-listener name="default" port="2121" />
    </listeners>
    <db-user-manager>
        <data-source>
            <beans:bean class="org.apache.commons.dbcp.BasicDataSource" >
                <beans:property name="driverClassName" value="com.mysql.jdbc.Driver" />
                <beans:property name="url" value="jdbc:mysql://127.0.0.1/apache_test" />
                <beans:property name="username" value="admin" />
                <beans:property name="password" value="password" />
            </beans:bean>
        </data-source>
        <insert-user>INSERT INTO FTP_USER (userid, userpassword,
            homedirectory, enableflag, writepermission, idletime, uploadrate,
            downloadrate) VALUES ('{userid}', '{userpassword}',
            '{homedirectory}',
            {enableflag}, {writepermission}, {idletime},
            {uploadrate},
            {downloadrate})
        </insert-user>
            <update-user>UPDATE FTP_USER SET
                userpassword='{userpassword}',homedirectory='{homedirectory}',enableflag={enableflag},writepermission={writepermission},idletime={idletime},uploadrate={uploadrate},downloadrate={downloadrate}
                WHERE userid='{userid}'
        </update-user>
            <delete-user>DELETE FROM FTP_USER WHERE userid = '{userid}'
        </delete-user>
            <select-user>SELECT userid, userpassword, homedirectory,
                enableflag, writepermission, idletime, uploadrate, downloadrate,
                maxloginnumber, maxloginperip FROM
                FTP_USER WHERE userid = '{userid}'
        </select-user>
            <select-all-users>SELECT userid FROM FTP_USER ORDER BY userid
        </select-all-users>
            <is-admin>SELECT userid FROM FTP_USER WHERE userid='{userid}'
                AND
                userid='admin'
        </is-admin>
            <authenticate>SELECT userpassword from FTP_USER WHERE
                userid='{userid}'</authenticate>
    </db-user-manager>
</server>

Femi 建议的编辑后出现新错误：

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.apache.ftpserver.usermanager.DbUserManagerFactory#0': Cannot create inner bean 
'org.apache.commons.dbcp.BasicDataSource#c832d2' of type [org.apache.commons.dbcp.BasicDataSource] while setting bean property 'dataSource'; nested exception is 
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.apache.commons.dbcp.BasicDataSource#c832d2' defined in file 
[C:\apache-ftpserver-1.0.5\res\conf\ftpd-full.xml]: Instantiation of bean failed; nested exception is java.lang.NoClassDefFoundError: org/apache/commons/pool/KeyedObjectPoolFactory
        at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveInnerBean(BeanDefinitionValueResolver.java:230)
        at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:117)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1245)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1010)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:472)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)
        at java.security.AccessController.doPrivileged(Native Method)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)
        at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264)
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:221)
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:429)
        at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:729)
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:381)
        at org.springframework.context.support.FileSystemXmlApplicationContext.<init>(FileSystemXmlApplicationContext.java:140)
        at org.springframework.context.support.FileSystemXmlApplicationContext.<init>(FileSystemXmlApplicationContext.java:84)
        at org.apache.ftpserver.main.CommandLine.getConfiguration(CommandLine.java:132)
        at org.apache.ftpserver.main.CommandLine.main(CommandLine.java:56)
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.apache.commons.dbcp.BasicDataSource#c832d2' defined in file [C:\apache-ftpserver-1.0.5\res\conf\ftpd-full.xml]: Instantiation of bean failed; nested exception is java.lang.NoClassDefFoundError: org/apache/commons/pool/KeyedObjectPoolFactory
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:883)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:839)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:440)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)
        at java.security.AccessController.doPrivileged(Native Method)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)
        at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveInnerBean(BeanDefinitionValueResolver.java:219)
        ... 19 more
Caused by: java.lang.NoClassDefFoundError: org/apache/commons/pool/KeyedObjectPoolFactory
        at java.lang.Class.getDeclaredConstructors0(Native Method)
        at java.lang.Class.privateGetDeclaredConstructors(Class.java:2389)
        at java.lang.Class.getConstructor0(Class.java:2699)
        at java.lang.Class.getDeclaredConstructor(Class.java:1985)
        at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:54)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:877)
        ... 25 more
Caused by: java.lang.ClassNotFoundException: org.apache.commons.pool.KeyedObjectPoolFactory
        at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
        ... 31 more

Femi 建议的第二次更改后出现新错误：

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.apache.ftpserver.FtpServerFactory#0': Cannot create inner bean '(inner bean)' while setting bean property 'u
serManager'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)#1': Instantiation of bean failed; nested exception is org.springfr
amework.beans.factory.BeanDefinitionStoreException: Factory method [public org.apache.ftpserver.ftplet.UserManager org.apache.ftpserver.usermanager.DbUserManagerFactory.createUserManager()] threw exce
ption; nested exception is org.apache.ftpserver.FtpServerConfigurationException: Failed to open connection to user database
        at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveInnerBean(BeanDefinitionValueResolver.java:230)
        at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:122)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1245)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1010)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:472)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)
        at java.security.AccessController.doPrivileged(Native Method)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)
        at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264)
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:221)
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:429)
        at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:729)
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:381)
        at org.springframework.context.support.FileSystemXmlApplicationContext.<init>(FileSystemXmlApplicationContext.java:140)
        at org.springframework.context.support.FileSystemXmlApplicationContext.<init>(FileSystemXmlApplicationContext.java:84)
        at org.apache.ftpserver.main.CommandLine.getConfiguration(CommandLine.java:132)
        at org.apache.ftpserver.main.CommandLine.main(CommandLine.java:56)
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)#1': Instantiation of bean failed; nested exception is org.springframework.beans.factory.
BeanDefinitionStoreException: Factory method [public org.apache.ftpserver.ftplet.UserManager org.apache.ftpserver.usermanager.DbUserManagerFactory.createUserManager()] threw exception; nested exceptio
n is org.apache.ftpserver.FtpServerConfigurationException: Failed to open connection to user database
        at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:444)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:903)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:817)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:440)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)
        at java.security.AccessController.doPrivileged(Native Method)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)
        at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveInnerBean(BeanDefinitionValueResolver.java:219)
        ... 19 more
Caused by: org.springframework.beans.factory.BeanDefinitionStoreException: Factory method [public org.apache.ftpserver.ftplet.UserManager org.apache.ftpserver.usermanager.DbUserManagerFactory.createUs
erManager()] threw exception; nested exception is org.apache.ftpserver.FtpServerConfigurationException: Failed to open connection to user database
        at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:127)
        at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:435)
        ... 26 more
Caused by: org.apache.ftpserver.FtpServerConfigurationException: Failed to open connection to user database
        at org.apache.ftpserver.usermanager.impl.DbUserManager.<init>(DbUserManager.java:103)
        at org.apache.ftpserver.usermanager.DbUserManagerFactory.createUserManager(DbUserManagerFactory.java:89)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:115)
        ... 27 more
Caused by: org.apache.commons.dbcp.SQLNestedException: Cannot create PoolableConnectionFactory (Access denied for user 'user'@'localhost' (using password: YES))
        at org.apache.commons.dbcp.BasicDataSource.createPoolableConnectionFactory(BasicDataSource.java:1549)
        at org.apache.commons.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1388)
        at org.apache.commons.dbcp.BasicDataSource.getConnection(BasicDataSource.java:1044)
        at org.apache.ftpserver.usermanager.impl.DbUserManager.createConnection(DbUserManager.java:307)
        at org.apache.ftpserver.usermanager.impl.DbUserManager.<init>(DbUserManager.java:98)
        ... 33 more
Caused by: java.sql.SQLException: Access denied for user 'user'@'localhost' (using password: YES)
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1055)
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:956)
        at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3491)
        at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3423)
        at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:910)
        at com.mysql.jdbc.MysqlIO.secureAuth411(MysqlIO.java:3923)
        at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1273)
        at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2031)
        at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:718)
        at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:46)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
        at com.mysql.jdbc.Util.handleNewInstance(Util.java:406)
        at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:302)
        at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:282)
        at org.apache.commons.dbcp.DriverConnectionFactory.createConnection(DriverConnectionFactory.java:38)
        at org.apache.commons.dbcp.PoolableConnectionFactory.makeObject(PoolableConnectionFactory.java:582)
        at org.apache.commons.dbcp.BasicDataSource.validateConnectionFactory(BasicDataSource.java:1556)
        at org.apache.commons.dbcp.BasicDataSource.createPoolableConnectionFactory(BasicDataSource.java:1545)
        ... 37 more

【问题讨论】：

    标签： java windows apache jdbc javabeans


    【解决方案1】：

    不是 DBCP 问题，是 Spring 配置问题。更改 XML 文件的顶部以包含 spring bean 定义，我认为你会没事的。

    <server xmlns="http://mina.apache.org/ftpserver/spring/v1"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:beans="http://www.springframework.org/schema/beans"
    xsi:schemaLocation="
       http://mina.apache.org/ftpserver/spring/v1 http://mina.apache.org/ftpserver/ftpserver-1.0.xsd http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd"
    id="Prometheus">

    您可能需要将末尾的 2.0.xsd 更改为 3.0.xsd，具体取决于 MINA FTPServer 附带的 Spring 版本。

    【讨论】：

    • 您还需要获取 commons-pool。从commons.apache.org/pool 下载 jar 并将其放在与 DBCP jar 相同的位置。
    • 我认为 Apache 只是讨厌我什么的……这次造成了一个新错误 - 再次更新/添加到帖子中。
    • 您是否在正确的位置获取并安装了 commons pool jar 文件？
    • 是的，我把它们都放在了 .\common\lib 中——抱歉，我花了一点时间来复制错误输出。它现在。
    • 啊，这是一个不同的问题：org.apache.ftpserver.FtpServerConfigurationException: Failed to open connection to user database 告诉你问题。它无法连接到您的数据库。找出你的防火墙或 MySQL 配置做错了什么。
    【解决方案2】：

    安装common/lib commons-dbcp-1.4 3 jar 文件，而不是（或除了）commons-pool-1.6（上面的链接）。

    http://commons.apache.org/dbcp/download_dbcp.cgi

    这对我有用。

    【讨论】：

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