findmessageaction.java

来自「教师办公管理系统」· Java 代码 · 共 44 行

package to.view.Action;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionMapping;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionError;
import org.apache.struts.action.ActionErrors;
import java.io.IOException;
import javax.servlet.ServletException;
import to.model.Message.MessageBean;
import to.model.Message.MessageItem;

public class FindMessageAction extends Action 
{
  /**
   * This is the main action called from the Struts framework.
   * @param mapping The ActionMapping used to select this instance.
   * @param form The optional ActionForm bean for this request.
   * @param request The HTTP Request we are processing.
   * @param response The HTTP Response we are processing.
   * @throws javax.servlet.ServletException
   * @throws java.io.IOException
   * @return 
   */
  public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException
  {
    String name=request.getParameter("MessageName").trim();
    
    if(name==null||name.length()<1)
    {
      request.setAttribute("message","查询条件不能为空");
      return mapping.findForward("failure");
    }
    
    MessageBean mb=new MessageBean();
    MessageItem mi=mb.getMessageName(name);
    
    request.setAttribute("mi",mi);
    
    return mapping.findForward("success");
  }
}