Struts1 中提交中文表单到ActionForm后出现乱码问题的原因及处理方法

一、乱码出现原因

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)

二、解决办法

方法 <1>： 就是在表单提交到ActionForm之前对request进行编码,写一个过滤器，对所有请求进行过滤

（1）过滤器代码如下:

 

View Code 
 1 package com.first.struts.filters;
 2 
 3 import java.io.IOException;
 4 
 5 import javax.servlet.Filter;
 6 import javax.servlet.FilterChain;
 7 import javax.servlet.FilterConfig;
 8 import javax.servlet.ServletException;
 9 import javax.servlet.ServletRequest;
10 import javax.servlet.ServletResponse;
11 
12 public class SetCharacterEncodingFilter implements Filter {
13 
14 private String encoding;
15  private FilterConfig filterConfig = null;
16  
17 public void destroy() {
18 this.encoding = null;
19  this.filterConfig = null;
20 
21 }
22 
23 public void doFilter(ServletRequest request, ServletResponse response,
24   FilterChain chain) throws IOException, ServletException {
25  request.setCharacterEncoding(this.encoding);
26   chain.doFilter(request, response);
27  }
28 
29  public void init(FilterConfig filterConfig) throws ServletException {
30   this.encoding = filterConfig.getInitParameter("encoding");
31  }
32 
33 }

 

（2）web.xml文件配置如下：

View Code 
 1 <filter>
 2   <filter-name>SetCharacterEncoding</filter-name>
 3   <filter-class>com.first.struts.filters.SetCharacterEncodingFilter</filter-class>
 4   <init-param>
 5    <param-name>encoding</param-name>
 6    <param-value>GBK</param-value>
 7   </init-param>
 8  </filter>
 9 
10  <filter-mapping>
11   <filter-name>SetCharacterEncoding</filter-name>
12   <url-pattern>/*</url-pattern>
13  </filter-mapping>
14   </filter-mapping>

方法 <2>：替换默认的控制器org.apache.struts.action.ActionServlet

（1）子类代码：

 

View Code 
 1 package jp.co.ricoh.gtis.others.profile.controllers; 
 2 
 3 
 4 import java.io.IOException;
 5 
 6 import javax.servlet.ServletException;
 7 import javax.servlet.http.HttpServletRequest;
 8 import javax.servlet.http.HttpServletResponse;
 9 
10 import org.apache.struts.action.ActionServlet;
11 
12 public class SetEncodingActionServlet extends ActionServlet {
13 
14 protected void process(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
15   // TODO Auto-generated method stub
16   String encoding = getInitParameter("encoding");
17   request.setCharacterEncoding(encoding);
18   super.process(request, response);
19 }
20 
21 }

 

（2）配置文件web.xml

 

View Code 
 1  <servlet>
 2     <servlet-name>testAction</servlet-name>
 3     <servlet-class>jp.co.ricoh.gtis.others.profile.controllers.SetEncodingActionServlet</servlet-class>
 4     <init-param>
 5       <param-name>config</param-name>
 6       <param-value>/WEB-INF/struts-config.xml</param-value>
 7     </init-param>
 8     <init-param>
 9       <param-name>encoding</param-name>
10       <param-value>Shift_JIS</param-value>
11     </init-param>
12     <load-on-startup>2</load-on-startup>
13   </servlet>
14 
15   <servlet-mapping>
16     <servlet-name>testAction</servlet-name>
17     <url-pattern>*.testdo</url-pattern>
18   </servlet-mapping>

 

 

 

 

 

posted @ 2012-04-13 13:25  GYW.  阅读(2243)  评论(0)  编辑  收藏  举报