jsp出现中文乱码怎么处理？

http://community.csdn.net/Expert/topic/3582/3582938.xml?temp=.9504358

要进行中文转码处理的，这个问题很多人问过了，试试用下面的方法：
name=new String(name.getBytes("ISO8859_1"),"GB2312");
content=new String(content.getBytes("ISO8859_1"),"GB2312");

<%@ page contentType="text/html; charset=GB2312" %>

String path=(String)request.getParameter("name");
byte b[]=path.getBytes("ISO-8859-1");
path=new String(b);

不用这么麻烦，你可以使用一个Filter这样你就不用在每个页加上
类似这样的代码了
String path=(String)request.getParameter("name");
byte b[]=path.getBytes("ISO-8859-1");
path=new String(b);

web.xml
里如下
 <filter>
 <filter-name>setCharacterEncoding</filter-name>
 <filter-class>com.rmyy.SetCharacterEncodingFilter</filter-class>
 <init-param>
 <param-name>encoding</param-name>
 <param-value>gb2312</param-value>
 </init-param>
 </filter>
 <filter-mapping>
 <filter-name>setCharacterEncoding</filter-name>
 <url-pattern>/*</url-pattern>
 </filter-mapping>

filert
代码如下
/*
* $Header: /home/cvs/jakarta-servletapi-5/jsr154/examples/WEB-INF/classes/filters/SetCharacterEncodingFilter.java,v 1.1 2002/09/02 13:14:53 remm Exp $
* $Revision: 1.1 $
* $Date: 2002/09/02 13:14:53 $
*
* ====================================================================
*
* The Apache Software License, Version 1.1
*
* Copyright (c) 1999-2001 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution, if
* any, must include the following acknowlegement:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowlegement may appear in the software itself,
* if and wherever such third-party acknowlegements normally appear.
*
* 4. The names "The Jakarta Project", "Tomcat", and "Apache Software
* Foundation" must not be used to endorse or promote products derived
* from this software without prior written permission. For written
* permission, please contact [email protected].
*
* 5. Products derived from this software may not be called "Apache"
* nor may "Apache" appear in their names without prior written
* permission of the Apache Group.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*
* [Additional notices, if required by prior licensing conditions]
*
*/
package com.rmyy;
import java.io.IOException;
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.UnavailableException;
/**
* Example filter that sets the character encoding to be used in parsing the
* incoming request, either unconditionally or only if the client did not
* specify a character encoding. Configuration of this filter is based on
* the following initialization parameters:
* <ul>
* <li>encoding - The character encoding to be configured
* for this request, either conditionally or unconditionally based on
* the <code>ignore</code> initialization parameter. This parameter
* is required, so there is no default.</li>
* <li>ignore - If set to "true", any character encoding
* specified by the client is ignored, and the value returned by the
* <code>selectEncoding()</code> method is set. If set to "false,
* <code>selectEncoding()</code> is called only if the
* client has not already specified an encoding. By default, this
* parameter is set to "true".</li>
* </ul>
*
* Although this filter can be used unchanged, it is also easy to
* subclass it and make the <code>selectEncoding()</code> method more
* intelligent about what encoding to choose, based on characteristics of
* the incoming request (such as the values of the <code>Accept-Language</code>
* and <code>User-Agent</code> headers, or a value stashed in the current
* user's session.
*
* @author Craig McClanahan
* @version $Revision: 1.1 $ $Date: 2002/09/02 13:14:53 $
*/public class SetCharacterEncodingFilter implements Filter {
 // ----------------------------------------------------- Instance Variables
 /**
 * The default character encoding to set for requests that pass through
 * this filter.
 */
 protected String encoding = null;
 /**
 * The filter configuration object we are associated with. If this value
 * is null, this filter instance is not currently configured.
 */
 protected FilterConfig filterConfig = null;
 /**
 * Should a character encoding specified by the client be ignored?
 */
 protected boolean ignore = true;
 // --------------------------------------------------------- Public Methods
 /**
 * Take this filter out of service.
 */

<%@ page contentType="text/html;charset=GB2312"%>
是正解
要是还不行的话，考虑字符集的转换了。
IS0-8859-1转换成GB2312

<%@ page contentType="text/html;charset=GBK"%>

调试易

jsp出现中文乱码怎么处理？

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