使用Struts 2与Ajax时，我试图提交表单的属性没有传递给动作类，因此我得到null。
我的JSP：
<head>
<title>Login</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="publicHtml/css/bootstrap.min.css">
<script src="publicHtml/js/jquery.min.js"></script>
<script src="publicHtml/js/bootstrap.min.js"></script>
<script>
var contextName = "<%=request.getContextPath()%>";
</script>
<script src="publicHtml/js/automation.js"></script>
</head>
<body>
<form action="loginAction" id="myForm" method="post">
<div class="container-fluid">
<div class="jumbotron">
LOG CREATION
</div>
</div>
<div class="row" style="height: 50px">
<div class="col-lg-12 col-md-12 col-sm-12 col-xs-12" style="text-align: center">
<mark style="color: red;display: none;" id="errorMessage"></mark>
</div>
</div>
<div class="row">
<div class="col-lg-7 col-md-7 col-sm-5 col-xs-5">
</div>
<div class="col-lg-3 col-md-3 col-sm-6 col-xs-6">
<div id="loginJSP">
<div class="form-group">
<input type="text" class="form-control" placeholder="User Name" id="userName" name="userName">
</div>
<div class="form-group">
<input type="password" class="form-control" placeholder="Password" id="password" name="password">
</div>
<input type="button" onclick="validLogin()" value="Login">
</div>
</div>
<div class="col-lg-2 col-md-2 col-sm-1 col-xs-1">
</div>
</div>
</form>
</body>我的Action：
public class LoginAction extends ActionSupport {
String forward = ERROR;
public LoginAction() {
}
/**
*
* @return @throws Exception
*/
@Override
public String execute() throws Exception {
System.err.println("Assigned Property is "+userName);
forward = null;
return forward;
}
private String userName=null,password=null;
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}}我的JS是：
function submitForm(actionName, commandName) {
var frm = document.forms[0];
var url = contextName + "/" + actionName + "?command=" + commandName;
frm.action = url;
frm.submit();
}
function validLogin() {
alert('hi');
var userName = document.getElementById('userName').value;
var password = document.getElementById('password').value;
document.getElementById('errorMessage').innerHTML = "";
$('#errorMessage').hide();
alert('hi');
if (userName == '' && password == '') {
$('#errorMessage').append("USERNAME AND PASSWORD CANT BE BLANK");
$('#errorMessage').show();
} else {
$.ajax({
type: "POST",
url: "./loginAction",
data: "command=loginValidation",
beforeSend: function () {
},
success: function (response) {
},
error: function (e) {
alert('hi error');
}
});
}我给出的输入是AAA。
预期输出应为：
Assigned Property is AAA我的输出是：
Assigned Property is null
1条答案
按热度按时间oxcyiej71#
在验证后，您没有在aps调用中发送参数。如果你使用下面的代码，这个问题可以解决：