我们可以在下一页显示 response.sendRedirect 发送的参数吗？ 如果是，如何？

Question

Is this the correct way to display parameter sent by,

response.sendRedirect("index.jsp?a="+1);

alert(<%=request.getParameter("a")%>);

Answer 1

response.sendRedirect("nextPage.jsp?paramName=someValue");

So on nextPage.jsp you have to write

String value = request.getParameter("paramName");

to get parameter value back.