jsp超级链接实现"目标另存为"功能

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;
    }
}
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