Roller 是一个Struts + Hibernate 的 Java 开源实现，正好拿来研究研究，首先就是要把它安装起来了，整理了一下步骤和注意事项，记录如下：准备需要的基本环境：1. Java 2 SDK 1.4.2_102. Tomcat 5.0.283. Roller 2.0 4. MySQL 5.0.16首先，确保MySQL开启了对InnoDB和UTF-8的支持，在my.ini中开启下面的参数：
[mysqld]default-storage-engine=innodbdefault-character-set=utf8启动好MySQL待用…D:/MySQL/mysqld.exe –console –datadir=I:/MyData/Data假设我的Tomcat主目录为：$CATALINA_HOME=D:/J2EE_HOME/AppServer/Tomcat把压缩的Roller文件 roller-2.0-incubating.tar 解开…并放到$CATALINA_HOME/WebApp/roller下面…如图…开始建立MySQL中的数据库：
I:> CD %CATALINA_HOME%/webapps/roller/WEB-INF/dbscripts/mysql I:> mysql -u root -p password: ***** mysql> create database roller; mysql> grant all on roller.* to scott@'%' identified by 'tiger'; mysql> grant all on roller.* to scott@'localhost' identified by 'tiger'; mysql> use roller; mysql> source createdb.sql mysql> quit
在 $CATALINA_HOME/conf/Catalina/localhost 中放置Roller的Web Application的部署配置档案 roller.xml，内容如下：
<Context path="/roller" docBase="${catalina.home}/webapps/roller" debug="0"> <Realm className="org.apache.catalina.realm.JDBCRealm" driverName="com.mysql.jdbc.Driver" connectionURL="jdbc:mysql://localhost:3306/roller?autoReconnect=true&useUnicode=true&characterEncoding=utf-8&mysqlEncoding=utf8" connectionName="scott" connectionPassword="tiger" userTable="rolleruser" userNameCol="username" userCredCol="passphrase" userRoleTable="userrole" roleNameCol="rolename" debug="0" /> <Resource name="jdbc/rollerdb" auth="Container" type="javax.sql.DataSource" /><ResourceParams name="jdbc/rollerdb"> <parameter> <name>factory</name> <value>org.apache.commons.dbcp.BasicDataSourceFactory</value> </parameter> <parameter> <name>driverClassName</name> <value>com.mysql.jdbc.Driver</value> </parameter> <parameter> <name>url</name> <value>jdbc:mysql://localhost:3306/roller?autoReconnect=true&useUnicode=true&characterEncoding=utf-8&mysqlEncoding=utf8</value> </parameter> <parameter> <name>username</name> <value>scott</value> </parameter> <parameter> <name>password</name> <value>tiger</value> </parameter> <parameter> <name>maxActive</name> <value>20</value> </parameter> <parameter> <name>maxIdle</name> <value>3</value> </parameter> <parameter> <name>removeAbandoned</name> <value>true</value> </parameter> <parameter> <name>maxWait</name> <value>3000</value> </parameter></ResourceParams><!--// To enable email notification of comments: uncomment the resouce below, set your mailhost, and make sure you have mail.jar and activation.jar in <tomcat>/common/lib.//--><!--// <Resource name="mail/Session" auth="Container" type="javax.mail.Session"/> <ResourceParams name="mail/Session"> <parameter> <name>mail.smtp.host</name> <value>mailhost.example.com</value> </parameter> </ResourceParams>//--></Context>
完成上面的设定后，接下来，我们修改一下Tomcat中的Connector的设定，使它能够支持UTF-8的编码，打开 $CATALINA_HOME/conf/server.xml，做如下修改…
<!– Define a non-SSL Coyote HTTP/1.1 Connector on port 8080 –><Connector port="80" URIEncoding="UTF-8" maxThreads="150" minSpareThreads="25" maxSpareThreads="75" enableLookups="false" redirectPort="8443" acceptCount="100" debug="0" connectionTimeout="20000" disableUploadTimeout="true" />到这里，基本上Tomcat相关的设定就完成了，因为Roller Blog可以支持上传附件和全文检索等功能，所以，我们还有一个设定的动作…
在 $CATALINA_HOME/WebApp/roller 中新建下面层次的目录：
$CATALINA_HOME/WebApp/roller | +—data | +—search-index +—uploads找到 $CATALINA_HOME/webapps/roller/WEB-INF/classes/roller.properties ，做如下修改：
# The directory in which Roller will upload files# uploads.dir=${user.home}/roller_data/uploadsuploads.dir=${TOMCAT_HOME}/webapps/roller/data/uploads# force Roller to recreate the entire search index)# search.index.dir=${user.home}/roller_data/search-indexsearch.index.dir=${TOMCAT_HOME}/webapps/roller/data/search-index好了，大功告成，启动Tomcat，可以运行Roller了！
想要成功，就一定要和成功的人在一起，不然反之
