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作者:Junsan Jin 日期:2005-3-30 版本:1.0 信箱:junsan21@126.com ; junnef21@sohu.com 声明:本人保留本文的所有权利。 第二部分:配置Log4j Log4j主要是针对java的日志文件产生治理包,这里使用logging-log4j-1.2.9。解压logging-log4j-1.2.9的压缩包,任意路径即可,这里是D:/logging-log4j-1.2.9。 先在JBuilder中建立工程,然后引入log4j库文件。 新建工程: 选择菜单:new project…,name为Trader,点击finish。 这里工程目录为:E:/projects/Trader。 拷贝类库: 在trader文件夹下新建lib文件夹,拷贝D:/logging-log4j-1.2.9/dist/lib/log4j-1.2.9.jar到E:/projects/Trader/lib下。 将类库引入工程: 选择菜单:project〉project properties 〉Paths 〉右边Tab页Required Libraries > Add > Tab页Archives,选择E:/projects/Trader/lib,右边的列表框中选择log4j-1.2.9.jar,一路ok即可。 新建web模块: 选择菜单:New 〉 Web 〉Web module(WAR)〉 OK按钮 〉Create Empty Web Module 〉 Next按钮,填入名称WebTrader,点击Finish按钮。 增加properties配置文件: 在JBuilder左边的菜单树上选择WebTrader 〉Module Directory 〉选中WEB-INF 〉右键new 〉File,填入log4j.properties确定即可。 编辑log4j.properties的内容如下: ------------------------------------------------- log4j.properties -------------------------------------------------- # For the general syntax of property based configuration files see the # documenation of org.apache.log4j.PropertyConfigurator. # The root category uses the appender called A1. Since no priority is # specified, the root category assumes the default priority for root # which is DEBUG in log4j. The root category is the only category that # has a default priority. All other categories need not be assigned a # priority in which case they inherit their priority from the # hierarchy. log4j.rootCategory=, A1 # A1 is set to be a FileAppender which outputs to the file # "factor.log". Start the server NumberCruncherServer and two # NumberCruncherClients, and ask to factor two numbers # near-simultaneously. Notice that the log output from these two # requests are logged in the file factor.log. Nevertheless, the logs # of these requests can still be distinguished given their distinct # nested diagnostic contexts. log4j.appender.A1=org.apache.log4j.FileAppender log4j.appender.A1.File=${jboss.server.home.dir}/log/trader.log log4j.appender.A1.layout=org.apache.log4j.PatternLayout # Note the %x conversion specifier for NDC printing. # log4j.appender.A1.layout.ConversionPattern=%-4r %-5p [%t] (%x) - %m/n log4j.appender.A1.layout.ConversionPattern=%d [%t] %-5p %c - %m%n Log4j.appender.A1.MaxFileSize=100KB 增加log4j环境初始化类: 右键点击菜单树中Trader.jpx 〉 New 〉Package,填入com.inspiresky.trader.init,确定即可。 右键点击新建的init包〉new 〉class,名字为Log4jInit.java,确定所在包为com.inspiresky.trader.init,点击OK键即可。 编辑Log4jInit.java的内容如下: ----------------------------------------------------- Log4jInit.java ----------------------------------------------------- package com.inspiresky.trader.init; import org.apache.log4j.PropertyConfigurator; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import java.io.PrintWriter; import java.io.IOException; import javax.servlet.ServletException; public class Log4jInit extends HttpServlet { //Initialize global variables public void init() throws ServletException { String prefix = getServletContext().getRealPath("/"); String file = getInitParameter("log4j-init-file"); // if the log4j-init-file is not set, then no point in trying if(file != null) { PropertyConfigurator.configure(prefix+file); } } public void doGet(HttpServletRequest req, HttpServletResponse res) { } //Clean up resources public void destroy() { } } 配置web.xml文件: 在JBuilder左边的菜单树上选择WebTrader 〉Module Directory 〉WEB-INF 下,打开web.xml,在<display-name>WebTrader</display-name>下增加如下内容: <servlet> <servlet-name>log4j-init</servlet-name> <servlet-class>com.inspiresky.trader.init.Log4jInit</servlet-class> <init-param> <param-name>log4j-init-file</param-name> <param-value>WEB-INF/log4j.properties</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> OK,至此我们的Log4j已经可以正常使用了。(未完待续) 返回类别: 教程 上一教程: Java套接字编程(下)(1) 下一教程: appfuse1.7帮助中创建DAO段代码 您可以阅读与"JBuilder2005+JBoss-4.0.2RC1+J2SDK1.5+Log4j 开发Session Bean例解(2)"相关的教程: · JBuilder2005+JBoss-4.0.2RC1+J2SDK1.5+Log4j 开发Session Bean例解(1) · JBuilder2005+JBoss-4.0.2RC1+J2SDK1.5+Log4j 开发Session Bean例解(3) · JBuilder2005+JBoss-4.0.2RC1+J2SDK1.5+Log4j 开发Session Bean例解(4) · 开发SessionBean · Jboss Ejb3.0 Statefull Bean |
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