应用服务器tomcat编码引起的JSP中汉字传到后台乱码问题

一般JSP中汉字传到后台显示乱码的解决方案大致分为:

1.web.xml设置字符编码过滤器,后台java代码:

package com.sls.pub.utils;
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;

public class ServletFilter
 implements Filter
{
protected String encoding = null;

protected FilterConfig filterConfig = null;

protected boolean ignore = true;

public void destroy()
 {
this.encoding = null;
this.filterConfig = null;
}

public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
 throws IOException, ServletException
 {
if ((this.ignore) || (request.getCharacterEncoding() == null)) {
String encoding = selectEncoding(request);
if (encoding != null) {
request.setCharacterEncoding(encoding);
}
}

chain.doFilter(request, response);
}

public void init(FilterConfig filterConfig)
 throws ServletException
 {
this.filterConfig = filterConfig;
this.encoding = filterConfig.getInitParameter("encoding");
String value = filterConfig.getInitParameter("ignore");
if (value == null)
this.ignore = true;
else if (value.equalsIgnoreCase("true"))
 this.ignore = true;
else if (value.equalsIgnoreCase("yes"))
 this.ignore = true;
else
this.ignore = false;
}

protected String selectEncoding(ServletRequest request)
 {
return this.encoding;
}
}

web.xml编写过滤器(此处允许GBK编码):

<filter>     
<filter-name>EncodingFilter</filter-name>     
<display-name>EncodingFilter</display-name>          <description>EncodingFilter</description>     
<filter-class>com.sls.pub.utils.ServletFilter</filter-class>     
<init-param>       
<param-name>encoding</param-name>       
<param-value>GBK</param-value>     
</init-param>   </filter>

2.设置IDE软件(eg:myeclipse)的编码,这个方法大家可以百度一下,此处略去。
3.第三个也是大家容易忽略的问题,这里细讲一下。
我遇到的问题是,我的整个工程编码格式是GBK,JSP中在URL拼接路径访问时传递的汉字仍正常,传到后台后通过reqest.getParameter("")获取该字段后变成了乱码。我本地使用的myeclipse+tomcat。但是工程在linux环境部署的websphere应用服务器中没有乱码问题。我检查过myeclipse编码设置,然后定位到可能是应用服务器不同导致的。然后我去查tomcat的相关资料,最后发现tomcat的默认编码是iso8859-1。如果要改变其默认的编码,需要在tomcat的server.xml中,修改这段代码:

<Connector port="8888" protocol="HTTP/1.1"                connectionTimeout="20000"                
redirectPort="8443" />

修改为:

 <Connector port="8888" protocol="HTTP/1.1"                connectionTimeout="20000"                
redirectPort="8443"  
URIEncoding="GBK" />

问题解决...

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