jsp: <%...@ page language="java" contentType="text/html; charset=GB18030" pageEncoding="GB18030"%><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=GB18030"><title>Insert title here</title></head><body><a href="/test/test.do">1322</a></body></html> action: package action;import java.io.FileOutputStream;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import org.apache.struts.action.Action;import org.apache.struts.action.ActionForm;import org.apache.struts.action.ActionForward;import org.apache.struts.action.ActionMapping;public class TeAction extends Action ...{ public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception ...{ // TODO Auto-generated method stub StringBuilder sb = new StringBuilder(); sb.append("1"); response.addHeader("Content-Disposition", "attachment; filename=test.txt"); response.setContentType("application/octet-stream"); response.setCharacterEncoding("GB2312"); response.getWriter().write(sb.toString()); response.flushBuffer(); return null; }}