function validate(){
var username = document.getElementByProperty("userName").value;
var password = document.getElementByProperty("passWord").value;
if((username == null ||username =='') || (password == null||password=='')){
x=document.getElementById("error");
x.innerHTML = "Username or Password Cannot Be Blank";
else{
document.getElementById("loginform").submit();
}
<form id="loginform" action="login.do" method="post">
UserName:<html:text property="userName"></html:text>
PassWord:<html:password property="passWord"></html:password>
<html:button onclick="validate()"></html:button>
</form>
上面的代码不起作用,我无法在文本框中获取值以进行验证...请帮我解决这个问题...
最佳答案
function validate(){
var username = document.getElementById("userName").value;
var password = document.getElementById("passWord").value;
}
<form id="loginform" action="login.do" method="post">
UserName:<html:text property="userName" styleId="userName"></html:text>
PassWord:<html:password property="passWord" styleId="passWord"></html:password>
<html:button onclick="validate()"></html:button>
</form>
关于java - 在使用 struts html 标签时,如何使用其 property 属性获取文本框的值?还有其他方法可以获取值吗?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/17742601/