被osworkflow的数据库配置（mysql）困住了

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被osworkflow的数据库配置（mysql）困住了_MySQL

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Jun 01, 2016 pm 01:56 PM

Database Connectivity

被osworkflow的数据库配置（mysql）困住了

今天研究了一下osworkflow,想运行一下他的例子程序看看效果。结果在配置与数据库连接方面出了问题，郁闷至极。

我用的是mysql数据库，按照
http://www.opensymphony.com/osworkflow/1.3%20Running%20the%20Example%20App.html一步一步的配置。
我的配置文件具体如下：
1：在tomcat的conf目录下修改server.xml，增加以下内容
debug= "99" reloadable="true" crossContext="true" verbosity="DEBUG">

prefix="OSWorkflow." suffix=".log" timestamp="true"/>

auth="Container"
type="javax.sql.DataSource"/>

factory
org.apache.commons.dbcp.BasicDataSourceFactory

maxActive
100

maxIdle
30

maxWait
10000

username
root

password

driverClassName
org.gjt.mm.mysql.Driver

url
jdbc:mysql://localhost:3306/osworkflow?autoReconnect=true

2：配置osworkflow.xml(在WEB-INF/classes目录下)，内容如下：

value="select count(*) + 1 from os_wfentry"/>

3：增加propertyset.xml（在WEB-INF/classes目录下），内容如下：

4：修改web.xml,内容如下：

>

OSWorkflow Example App

default.jsp

OSWorkflow Example App
jdbc/DefaultDS
javax.sql.DataSource
Container

5：将jboss-j2ee.jar拷贝到tomcat_home/common/endorsed目录下
6：将驱动程序拷贝到tomcat_home/common/lib目录下

7:启动tomcat但是报以下错误
严重: Parse error in application web.xml
java.lang.NullPointerException

Statement

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