struts2 js提交表单

<form id="myForm" action="submitForm.action" method="post">
    <input type="text" name="username" id="username" placeholder="Username">
    <input type="password" name="password" id="password" placeholder="Password">
    <button type="button" onclick="submitForm()">Submit</button>
</form>
<div id="result"></div>

function submitForm() {
    var form = document.getElementById('myForm');
    var formData = new FormData(form);

    fetch('submitForm.action', {
        method: 'POST',
        body: formData
    })
    .then(response => response.json())
    .then(data => {
        document.getElementById('result').innerText = data.message;
    })
    .catch(error => console.error('Error:', error));
}

public class SubmitFormAction extends ActionSupport {
    private String username;
    private String password;

    // Getters and Setters

    public String execute() {
        // 处理表单数据
        return SUCCESS;
    }
}