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<div class="subTitle">org.apache.logging.log4j.web</div>
<h2 title="Class Log4jServletFilter" class="title">Class Log4jServletFilter</h2>
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<dt>All Implemented Interfaces:</dt>
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<pre>public class <a href="../../../../../src-html/org/apache/logging/log4j/web/Log4jServletFilter.html#line.42">Log4jServletFilter</a>
extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>
implements <a href="https://docs.oracle.com/javaee/6/api/javax/servlet/Filter.html?is-external=true" title="class or interface in javax.servlet">Filter</a></pre>
<div class="block">This is responsible for the following:
<ul>
<li>Clearing the logger context when the application has finished starting up.</li>
<li>Setting the logger context before processing a request and clearing it after processing a request.</li>
<li>Setting the logger context when the application is starting to shut down.</li>
</ul>
This filter is a once-per-request filter. It is capable of filtering all the different types of requests
(standard, asynchronous, error, etc.) but will not apply processing if the filter matches multiple times on the same
logical request.</div>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/logging/log4j/web/Log4jServletFilter.html#Log4jServletFilter--">Log4jServletFilter</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/logging/log4j/web/Log4jServletFilter.html#destroy--">destroy</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/logging/log4j/web/Log4jServletFilter.html#doFilter-javax.servlet.ServletRequest-javax.servlet.ServletResponse-javax.servlet.FilterChain-">doFilter</a></span>(<a href="https://docs.oracle.com/javaee/6/api/javax/servlet/ServletRequest.html?is-external=true" title="class or interface in javax.servlet">ServletRequest</a>&nbsp;request,
<a href="https://docs.oracle.com/javaee/6/api/javax/servlet/ServletResponse.html?is-external=true" title="class or interface in javax.servlet">ServletResponse</a>&nbsp;response,
<a href="https://docs.oracle.com/javaee/6/api/javax/servlet/FilterChain.html?is-external=true" title="class or interface in javax.servlet">FilterChain</a>&nbsp;chain)</code>&nbsp;</td>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/logging/log4j/web/Log4jServletFilter.html#init-javax.servlet.FilterConfig-">init</a></span>(<a href="https://docs.oracle.com/javaee/6/api/javax/servlet/FilterConfig.html?is-external=true" title="class or interface in javax.servlet">FilterConfig</a>&nbsp;filterConfig)</code>&nbsp;</td>
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<h4>Log4jServletFilter</h4>
<pre>public&nbsp;<a href="../../../../../src-html/org/apache/logging/log4j/web/Log4jServletFilter.html#line.42">Log4jServletFilter</a>()</pre>
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<h4>init</h4>
<pre>public&nbsp;void&nbsp;<a href="../../../../../src-html/org/apache/logging/log4j/web/Log4jServletFilter.html#line.52">init</a>(<a href="https://docs.oracle.com/javaee/6/api/javax/servlet/FilterConfig.html?is-external=true" title="class or interface in javax.servlet">FilterConfig</a>&nbsp;filterConfig)
throws <a href="https://docs.oracle.com/javaee/6/api/javax/servlet/ServletException.html?is-external=true" title="class or interface in javax.servlet">ServletException</a></pre>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="https://docs.oracle.com/javaee/6/api/javax/servlet/Filter.html?is-external=true#init-javax.servlet.FilterConfig-" title="class or interface in javax.servlet">init</a></code>&nbsp;in interface&nbsp;<code><a href="https://docs.oracle.com/javaee/6/api/javax/servlet/Filter.html?is-external=true" title="class or interface in javax.servlet">Filter</a></code></dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javaee/6/api/javax/servlet/ServletException.html?is-external=true" title="class or interface in javax.servlet">ServletException</a></code></dd>
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<h4>doFilter</h4>
<pre>public&nbsp;void&nbsp;<a href="../../../../../src-html/org/apache/logging/log4j/web/Log4jServletFilter.html#line.61">doFilter</a>(<a href="https://docs.oracle.com/javaee/6/api/javax/servlet/ServletRequest.html?is-external=true" title="class or interface in javax.servlet">ServletRequest</a>&nbsp;request,
<a href="https://docs.oracle.com/javaee/6/api/javax/servlet/ServletResponse.html?is-external=true" title="class or interface in javax.servlet">ServletResponse</a>&nbsp;response,
<a href="https://docs.oracle.com/javaee/6/api/javax/servlet/FilterChain.html?is-external=true" title="class or interface in javax.servlet">FilterChain</a>&nbsp;chain)
throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a>,
<a href="https://docs.oracle.com/javaee/6/api/javax/servlet/ServletException.html?is-external=true" title="class or interface in javax.servlet">ServletException</a></pre>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="https://docs.oracle.com/javaee/6/api/javax/servlet/Filter.html?is-external=true#doFilter-javax.servlet.ServletRequest-javax.servlet.ServletResponse-javax.servlet.FilterChain-" title="class or interface in javax.servlet">doFilter</a></code>&nbsp;in interface&nbsp;<code><a href="https://docs.oracle.com/javaee/6/api/javax/servlet/Filter.html?is-external=true" title="class or interface in javax.servlet">Filter</a></code></dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd>
<dd><code><a href="https://docs.oracle.com/javaee/6/api/javax/servlet/ServletException.html?is-external=true" title="class or interface in javax.servlet">ServletException</a></code></dd>
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<h4>destroy</h4>
<pre>public&nbsp;void&nbsp;<a href="../../../../../src-html/org/apache/logging/log4j/web/Log4jServletFilter.html#line.79">destroy</a>()</pre>
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<dd><code><a href="https://docs.oracle.com/javaee/6/api/javax/servlet/Filter.html?is-external=true#destroy--" title="class or interface in javax.servlet">destroy</a></code>&nbsp;in interface&nbsp;<code><a href="https://docs.oracle.com/javaee/6/api/javax/servlet/Filter.html?is-external=true" title="class or interface in javax.servlet">Filter</a></code></dd>
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