在javascript中读取会话变量? [英] Read session variable in javascript?

问题描述

我正在 servlet 中设置会话变量，并想在 javascript 中访问该变量.

I am setting session variable in servlet and want to access that variable in javascript.

 ps = con.prepareStatement("select * from USERDETAILS where username=? and password=?");
 ps.setString(1, username);
 session.setAttribute("userName", username);

我在 javascript 函数中尝试过这些.但它不起作用...

I tried these in javascript function. but it wasn't working...

var name = ${userName};
var name = '<%= Session["userName"] %>';

推荐答案

看来你应该可以使用 getAttribute():

Seems you should be able to use getAttribute():

var name = '<%= session.getAttribute("userName") %>';

不过，这取决于运行文件的 Java 来替换嵌入的 <%= ... %>，而在单独的 .js 中可能不会出现这种情况 文件.

Though, this depends on Java running through the file to replace the embedded <%= ... %>, which probably won't be the case in separate .js files.

这篇关于在javascript中读取会话变量?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！