Servlet之间跳转方案汇总
实现功能:当用户请求BServlet,BServlet执行完业务操作后,最终跳转到AServlet,进而执行AServlet中的业务。AServlet@WebServlet(urlPatterns = "/a")public class AServlet extends HttpServlet {@Overrideprotected void doGet(HttpServletRequest re
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实现功能:当用户请求BServlet,BServlet执行完业务操作后,最终跳转到AServlet,进而执行AServlet中的业务。
AServlet
@WebServlet(urlPatterns = "/a")
public class AServlet extends HttpServlet {
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
System.out.println("aaaaa");
}
}
BServlet
方案一:使用response重定向
@WebServlet(urlPatterns = "/b")
public class BServlet extends HttpServlet {
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
System.out.println("bbbbb");
response.sendRedirect("a");
}
}
方案二:请求转发
@WebServlet(urlPatterns = "/b")
public class BServlet extends HttpServlet {
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
System.out.println("bbbbb");
request.getRequestDispatcher("a").forward(request,response);
}
}
方案三:页面刷新
@WebServlet(urlPatterns = "/b")
public class BServlet extends HttpServlet {
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
System.out.println("bbbbb");
response.setHeader("refresh","0;url=a");
}
}
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