知识大全 Struts里提交中文表单到ActionForm的乱码问题

Posted 2022-07-18 知

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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 (参见Tomcat 源代码中的nnector 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 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 <filter> <filter name>SetCharacterEncodingFilter</filter name> <filter class> ricoh gtis others profile filters SetCharacterEncodingFilter</filter class> <init param> <param name>encoding</param name> <param value>utf </param value> </init param> </filter>

　　<filter mapping> <filter name>SetCharacterEncodingFilter</filter name> <url pattern>/*</url pattern> </filter mapping>

第二种方法是替换默认的控制器 apache struts action ActionServlet

　　子类代码 package ricoh gtintrollers; import java io IOException;

　　import javax servlet ServletException; import javax servlet HttpServletRequest; import javax servlet HttpServletResponse;

　　import 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> ricoh gtintrollers 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>utf </param value> </init param> <load on startup> </load on startup> </servlet>

　　<servlet mapping> <servlet name>testAction</servlet name> <url pattern>* testdo</url pattern> </servlet mapping>

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