Exception starting filter CharacterFilter
java.lang.ClassNotFoundException: com.xzit.common.EncodingFilter
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1854)
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1703)
at org.apache.catalina.core.DefaultInstanceManager.loadClass(DefaultInstanceManager.java:506)
at org.apache.catalina.core.DefaultInstanceManager.loadClassMaybePrivileged(DefaultInstanceManager.java:488)
at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:115)
at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:258)
at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:105)
at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4841)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5535)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1574)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1564)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:619)
严重: One or more Filters failed to start. Full details will be found in the appropriate container log file
2016-7-9 20:10:46 org.apache.catalina.core.StandardContext startInternal
严重: Context [/MyProject] startup failed due to previous errors
2016-7-9 20:10:46 org.apache.catalina.startup.HostConfig deployDirectory
感觉后两个错还是第一个错的问题。

EncodingFilter内容如下：

package com.xzit.common;



import java.io.IOException;

import java.io.UnsupportedEncodingException;



import javax.servlet.Filter;

import javax.servlet.FilterChain;

import javax.servlet.FilterConfig;

import javax.servlet.ServletException;

import javax.servlet.ServletRequest;

import javax.servlet.ServletResponse;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletRequestWrapper;

import javax.servlet.http.HttpServletResponse;



public class EncodingFilter implements Filter {



	private static String encoding;

	private static final String DEFAULT_CHARSET = "UTF-8";



	@Override

	public void destroy() {

		System.out.println("--------destroy---------");

	}



	@Override

	public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)

			throws IOException, ServletException {

		HttpServletRequest httpRequest = (HttpServletRequest) request;

		HttpServletResponse httpResponse = (HttpServletResponse) response;

		if ("GET".equals(httpRequest.getMethod())) {

			EncodingHttpServletRequest wrapper = new EncodingHttpServletRequest(httpRequest, encoding);

			chain.doFilter(wrapper, response);

		} else {

			httpRequest.setCharacterEncoding(encoding);

			httpResponse.setContentType("text/html;charset=" + encoding);

			chain.doFilter(request, response);

		}

	}



	private static class EncodingHttpServletRequest extends HttpServletRequestWrapper {

		private HttpServletRequest request;



		public EncodingHttpServletRequest(HttpServletRequest request, String encoding) {

			super(request);

			this.request = request;

		}



		@Override

		public String getParameter(String name) {

			String value = request.getParameter(name);

			try {

				value = new String(value.getBytes("iso8859-1"), encoding);

			} catch (UnsupportedEncodingException e) {

				e.printStackTrace();

			}

			return super.getParameter(name);

		}

	}



	@Override

	public void init(FilterConfig config) throws ServletException {

		System.out.println("--------init---------");

		encoding = config.getInitParameter("encoding");

		if (encoding == null || "".equals(encoding))

			encoding = DEFAULT_CHARSET;

	}

}

web.xml内容如下：

<?xml version="1.0" encoding="UTF-8"?>

<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

	xmlns="http://java.sun.com/xml/ns/javaee"

	xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"

	id="WebApp_ID" version="3.0">

	<display-name>MyProject</display-name>

	<filter>

		<filter-name>CharacterFilter</filter-name>

		<filter-class>com.xzit.common.EncodingFilter</filter-class>

		<init-param>

			<param-name>encoding</param-name>

			<param-value>UTF-8</param-value>

		</init-param>

	</filter>

	<filter-mapping>

		<filter-name>CharacterFilter</filter-name>

		<!-- 拦截所有的请求,为所有的请求设置编码 -->

		<url-pattern>/*</url-pattern>

	</filter-mapping>





	<filter>

		<filter-name>struts2</filter-name>

		<filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>

	</filter>

	<filter-mapping>

		<filter-name>struts2</filter-name>

		<url-pattern>/*</url-pattern>

	</filter-mapping>







</web-app>

加入catalina.jar包 可以去除上述错误，但会产生错误：
End event threw exception java.lang.NoSuchMethodException: org.apache.catalina.deploy.WebXml addServlet
百度后的解决方法是删掉catalina.jar ..已经调崩溃，求帮助。