Struts中提交中文表单到ActionForm的乱码问题解决办法

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:

package jp.co.ricoh.gtis.others.profile.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;   public void init(FilterConfig filterConfig) throws ServletException {   // TODO Auto-generated method stub   this.encoding=filterConfig.getInitParameter("encoding");   }   public void doFilter(ServletRequest request, ServletResponse response,    FilterChain chain) throws IOException, ServletException {   // TODO Auto-generated method stub   request.setCharacterEncoding(this.encoding);   chain.doFilter(request,response);   }   public void destroy() {   // TODO Auto-generated method stub   }  }

配置文件web.xml

    SetCharacterEncodingFilter    jp.co.ricoh.gtis.others.profile.filters.SetCharacterEncodingFilter        encoding    utf-8              SetCharacterEncodingFilter    /*   

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

    testAction    jp.co.ricoh.gtis.others.profile.controllers.SetEncodingActionServlet         config     /WEB-INF/struts-config.xml             encoding     utf-8        2         testAction    *.testdo   

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。

“过去酒逢知已千杯少,现在酒逢千杯知已少”。

Struts中提交中文表单到ActionForm的乱码问题解决办法

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