解决java web中文乱码

* <p>
* The default implementation un*onditionally returns the value *onfigured
* by the <strong>en*oding</strong> initialization parameter for this
// --------------------------------------------------------- Publi* Methods
/**
* Take this filter out of servi*e.
*/
publi* void destroy() {
* filter.
*
* @param request The servlet request we are pro*essing
*/
prote*ted String sele*tEn*oding(ServletRequest request) {
return (this.en*oding);
*/
prote*ted FilterConfig filterConfig = null;
/**
* Should a *hara*ter en*oding spe*ified by the *lient be ignored?
*/
prote*ted boolean ignore = true;
this.en*oding = null;
this.filterConfig = null;
}
/**
* Sele*t and set (if spe*ified) the *hara*ter en*oding to be used to
* interpret request parameters for this request.
}
}//EOC
该代码来自于www.javawebstudio.*om，特此感谢！
*
* @param request The servlet request we are pro*essing
* @param result The servlet response we are *reating
* @param *hain The filter *hain we are pro*essing
*hain.doFilter(request, response);
}
/**
* Pla*e this filter into servi*e.
*
* @param filterConfig The filter *onfiguration obje*t
*/
publi* void init(FilterConfig filterConfig) throws ServletEx*eption {
在每个JSP页面的最上面都加上一句
<%@ page language="java" *ontentType="text/html;*harset=GBK" %>
这样才能保证JSP页面中的中文显示正常
--------------------------- 步骤4 加一个传递参数时设定request字符集的filter类 -----------------------
this.filterConfig = filterConfig;
this.en*oding = filterConfig.getInitParameter("en*oding");
String value = filterConfig.getInitParameter("ignore");
else
this.ignore = false;
}
// ------------------------------------------------------ Prote*ted Methods
/**
* Sele*t an appropriate *hara*ter en*oding to be used, based on the
因为网络中字符在传递的时候，都是统一以iso-8859-1的编码传递，所以我们必须对request重新设定字符集，才能正常显示中文。如果采用filter类来实现，我们不用在每次取中文参数时都要重新设定。
filter类的内容：
/*
* ====================================================================
*
* JavaWebStudio 开源项目
*
* Struts_db v0.1
*
* ====================================================================
*/
pa*kageห้องสมุดไป่ตู้*om.strutsLogin.util;
*
* @ex*eption IOEx*eption if an input/output error o**urs
* @ex*eption ServletEx*eption if a servlet error o**urs
*/
publi* void doFilter(ServletRequest request, ServletResponse response,
在做JSP网页中,请求表单里面的汉字怎么是乱码怎么办?
2006-05-23 17:34linyifei401 分类：其他编程语言 | 浏览 12299 次
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2006-05-30 10:06 提问者采纳
Mysql与JSP网页中文乱码问题的解决方案自从以前学习JSP开始，中文乱码问题就一直不断，苦不堪言。这次在项目开始之前，我们要解决的第一个问题就是把mysql的中文乱码问题搞定。经过多天的努力，终于成功的解决了中文乱码问题，特写在这里，以备后用。
String en*oding = sele*tEn*oding(request);
if (en*oding != null)
request.setChara*terEn*oding(en*oding);
}
// Pass *ontrol on to the next filter
* this filter.
*/
prote*ted String en*oding = null;
/**
* The filter *onfiguration obje*t we are asso*iated with. If this value
* is null, this filter instan*e is not *urrently *onfigured.
if (value == null)
this.ignore = true;
else if (value.equalsIgnoreCase("true"))
this.ignore = true;
else if (value.equalsIgnoreCase("yes"))
this.ignore = true;
import java.io.IOEx*eption;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletEx*eption;
jdb*:mysql://lo*alhost:3306/testdb?useUni*ode=true&*hara*terEn*oding=gbk
此时要注意：如果我是把这个url写在JAVA代码中，就直接这样写。但如果是在xml配置文件中（如struts-*onfig.xml,web.xml等），要把其中的&改为&才行，否则会出错。也就是：
注：我只在此环境下测试通过，别的系统及不同版本未测试
要点：统一字符集（JSP页面编码，mysql建库时字符集选择，连接数据库URL，request设定等）
下面我以GBK为例讲解。如果要使用utf-8，只要在相应的GBK处换成utf-8即可
--------------------------- 步骤1 以GBK字符集建库建表 -------------------------------------
FilterChain *hain)
throws IOEx*eption, ServletEx*eption {
// Conditionally sele*t and set the *hara*ter en*oding to be used
if (ignore || (request.getChara*terEn*oding() == null)) {
// ----------------------------------------------------- Instan*e Variables
/**
* The default *hara*ter en*oding to set for requests that pass through
* *hara*teristi*s of the *urrent request and/or filter initialization