Web工程部署到WebLogic9.2配Log4j有关问题

Web工程部署到WebLogic9.2配Log4j问题
    <span><span style="">使用commons-logging接口管理log4j打印日志</span></span>
<span><span style="">?</span></span>
<span><span style="">现象：</span></span>

<p class="msonormal" style="margin: 0cm 0cm 0pt; padding-left: 30px;"><span><span><span><span style="">[size=small;]<span>新建一个[/size]<span lang="en-us"><span>servlet</span></span><span>，初始化</span><span lang="en-us"><span>log4j</span></span><span>配置文件：</span></span></span></span></span></span><span><span style="">?

public void init() throws servletexception {                  inputstream is = getservletcontext().getresourceasstream(                                    "/web-inf/classes/log4j.properties");                  properties props = new properties();                  try {                           props.load(is);                  } catch (ioexception e) {                           system.err.println("load log4j configuration failed");                  }                  propertyconfigurator.configure(props);        }

<span><font size="3">?
</font></span></span></span>?
<span style="">[size=small;]<span>?[/size]<span>并注册到web.xml中?</span></span></span>
<span style="">[size=small;]? [/size]
</span><font>?
</font></span>?