解决Struts里提交中文表单到ActionForm后的乱码问题。
2006-12-05 19:09
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由于Struts框架直接把表单数据发送给了ActionForm,所以这里面没有对HttpRequestServlet进行SetCharacterEncoding,所以默认是按照ISO-8859-1(参见Tomcat 源代码中的org.apache.catalina.connector.HttpRequestBase中的protected void parseParameters()方法),
解决的方法,就是在表单提交到ActionForm之前对request进行编码。
第一种方法,就是写一个过滤器,对所有请求进行过滤
过滤器代码:
/*
* @author 史亚军 ,创建日期 Dec 5, 2006
*
* Blog : http://blog.csdn.net/runnerupshi/
*/
package com.first.struts.filters;
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 SetCharacterEncodingFilter implements Filter {
private String encoding;
private FilterConfig filterConfig = null;
public void destroy() {
this.encoding = null;
this.filterConfig = null;
}
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain chain) throws IOException, ServletException {
request.setCharacterEncoding(this.encoding);
chain.doFilter(request, response);
}
public void init(FilterConfig filterConfig) throws ServletException {
this.encoding = filterConfig.getInitParameter("encoding");
}
}
配置文件web.xml
<filter>
<filter-name>Set Character Encoding</filter-name>
<filter-class>com.first.struts.filters.SetCharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>GBK</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>Set Character Encoding</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</filter-mapping>
第二种方法是替换默认的控制器org.apache.struts.action.ActionServlet
子类代码:
package jp.co.ricoh.gtis.others.profile.controllers;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.ActionServlet;
public class SetEncodingActionServlet extends ActionServlet {
protected void process(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
// TODO Auto-generated method stub
String encoding = getInitParameter("encoding");
request.setCharacterEncoding(encoding);
super.process(request, response);
}
}
配置文件web.xml
<servlet>
<servlet-name>testAction</servlet-name>
<servlet-class>jp.co.ricoh.gtis.others.profile.controllers.SetEncodingActionServlet</servlet-class>
<init-param>
<param-name>config</param-name>
<param-value>/WEB-INF/struts-config.xml</param-value>
</init-param>
<init-param>
<param-name>encoding</param-name>
<param-value>Shift_JIS</param-value>
</init-param>
<load-on-startup>2</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>testAction</servlet-name>
<url-pattern>*.testdo</url-pattern>
</servlet-mapping>
此例,凡是通过*.testdo来请求的数据,都会经过参数encoding设定的值来编码。
解决的方法,就是在表单提交到ActionForm之前对request进行编码。
第一种方法,就是写一个过滤器,对所有请求进行过滤
过滤器代码:
/*
* @author 史亚军 ,创建日期 Dec 5, 2006
*
* Blog : http://blog.csdn.net/runnerupshi/
*/
package com.first.struts.filters;
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 SetCharacterEncodingFilter implements Filter {
private String encoding;
private FilterConfig filterConfig = null;
public void destroy() {
this.encoding = null;
this.filterConfig = null;
}
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain chain) throws IOException, ServletException {
request.setCharacterEncoding(this.encoding);
chain.doFilter(request, response);
}
public void init(FilterConfig filterConfig) throws ServletException {
this.encoding = filterConfig.getInitParameter("encoding");
}
}
配置文件web.xml
<filter>
<filter-name>Set Character Encoding</filter-name>
<filter-class>com.first.struts.filters.SetCharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>GBK</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>Set Character Encoding</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</filter-mapping>
第二种方法是替换默认的控制器org.apache.struts.action.ActionServlet
子类代码:
package jp.co.ricoh.gtis.others.profile.controllers;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.ActionServlet;
public class SetEncodingActionServlet extends ActionServlet {
protected void process(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
// TODO Auto-generated method stub
String encoding = getInitParameter("encoding");
request.setCharacterEncoding(encoding);
super.process(request, response);
}
}
配置文件web.xml
<servlet>
<servlet-name>testAction</servlet-name>
<servlet-class>jp.co.ricoh.gtis.others.profile.controllers.SetEncodingActionServlet</servlet-class>
<init-param>
<param-name>config</param-name>
<param-value>/WEB-INF/struts-config.xml</param-value>
</init-param>
<init-param>
<param-name>encoding</param-name>
<param-value>Shift_JIS</param-value>
</init-param>
<load-on-startup>2</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>testAction</servlet-name>
<url-pattern>*.testdo</url-pattern>
</servlet-mapping>
此例,凡是通过*.testdo来请求的数据,都会经过参数encoding设定的值来编码。
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