Chinaunix首页 | 论坛 | 博客
  • 博客访问: 2566725
  • 博文数量: 709
  • 博客积分: 12251
  • 博客等级: 上将
  • 技术积分: 7905
  • 用 户 组: 普通用户
  • 注册时间: 2005-07-17 00:00
个人简介

实现有价值的IT服务

文章存档

2012年(7)

2011年(147)

2009年(3)

2008年(5)

2007年(74)

2006年(431)

2005年(42)

分类: Java

2006-08-25 10:22:10

Struts+Hibernate中解决汉字编码问题

原文:

1.修改web.xml文件,在<web-app>标签后增加如下内容.

<filter>
<filter-name>Set Character Encoding</filter-name>
<filter-class>com.company.demo.util.SetEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>gb2312</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>Set Character Encoding</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<servlet>
2.创建类文件(SetEncodingFilter.java)

package com.company.demo.util;
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;

/**
* Set All HttpRequest Encoding

*/
public class SetEncodingFilter
implements Filter {
/**
* 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;

/**
* Take this filter out of service.
*/
public void destroy() {
this.encoding = null;
this.filterConfig = null;
}

/**
* Select and set (if specified) the character encoding to be used to
* interpret request parameters for this request.
*
* @param request The servlet request we are processing
* @param result The servlet response we are creating
* @param chain The filter chain we are processing
*
* @exception IOException if an input/output error occurs
* @exception ServletException if a servlet error occurs
*/
public void doFilter(
ServletRequest request,
ServletResponse response,
FilterChain chain) throws IOException, ServletException {
if (ignore
(request.getCharacterEncoding() == null)) {
request.setCharacterEncoding(selectEncoding(request));
}
chain.doFilter(request, response);
}

/**
* Place this filter into service.
* @param filterConfig The filter configuration object
*/
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")
value.equalsIgnoreCase("yes"))
this.ignore = true;
else
this.ignore = false;
}

/**
* Select an appropriate character encoding to be used, based on the
* characteristics of the current request and/or filter initialization
* parameters. If no character encoding should be set, return
* <code>null</code>.
* <p>
* The default implementation unconditionally returns the value configured
* by the <strong>encoding</strong> initialization parameter for this
* filter.
*
* @param request The servlet request we are processing
*/
protected String selectEncoding(ServletRequest request) {
return (this.encoding);
}

/**
* Returns the filterConfig.
* @return FilterConfig
*/
public FilterConfig getFilterConfig() {
return filterConfig;
}

/**
* Sets the filterConfig.
* @param filterConfig The filterConfig to set
*/
public void setFilterConfig(FilterConfig filterConfig) {
this.filterConfig = filterConfig;
}

}
阅读(703) | 评论(0) | 转发(0) |
给主人留下些什么吧!~~