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”。