How to use select tag in struts2?
In Struts 2 , you can use the tag to create a HTML drop down box. The syntaxs are self explanatory, but the “headerKey” and “headerValue“. The “headerKey” is a key for the first item in the drop down list, and the “headerValue” is the value expression for the first item in the drop down list.
How to set selected value of dropdown in struts2?
In Struts 2, the HTML drop down box can be rendered via tag. To auto select a default value for a drop down box, just declared a “value” attribute in the tag, and set the default value accordingly.
How do you create a drop down list in struts?
In order to create a dropdown list in struts2 select /> is used on a jsp page. Just define a action name for displaying a dropdown list having value from database. In action class we define a list, and its getter and setter. and in execute method we add the elements in the list from the database.
How do I get requests in struts2?
In Struts 2 , you can use the following two methods to get the HttpServletRequest object.
- ServletActionContext. Get the HttpServletRequest object directly from org. apache. struts2. ServletActionContext.
- ServletRequestAware. Make your class implements the org. apache. struts2. interceptor.
What are the attributes of select tag in HTML?
Attributes
| Attribute | Value | Description |
|---|---|---|
| multiple | multiple | Specifies that multiple options can be selected at once |
| name | name | Defines a name for the drop-down list |
| required | required | Specifies that the user is required to select a value before submitting the form |
| size | number | Defines the number of visible options in a drop-down list |
How do you select a tag in Javascript?
To select a element, you use the DOM API like getElementById() or querySelector() . How it works: First, select the and elements using the querySelector() method. Then, attach a click event listener to the button and show the selected index using the alert() method when the button is clicked.
What is the use of styleId in JSP?
Form
| Attribute | Description |
|---|---|
| styleId | Specifies an identifier to be assigned to this HTML element. This creates an id attribute. |
| target | Specifies a Window target to which this form is submitted, such as for use in framed presentations. |
How fetch data from dropdown in database in JSP?
How to create dynamic drop down list in JSP from database
- Create Database. Suppose that you want to display items in a drop down list from the following table in a MySQL database:
- Create Java Model Class. Code for the model class that represents an item in the drop down list is as simple as below:
How do I get HttpServletRequest in struts2?
4 Answers. You need to use ActionInvocation#getInvocationContext() to retrieve your request. public String intercept(ActionInvocation invocation) throws Exception { ActionContext context = invocation. getInvocationContext(); HttpServletRequest request = (HttpServletRequest) context.
Which attribute is not used with select tag?
disabled: The disabled attribute is used to specify the select element is disabled. A disabled drop-down list is un-clickable and unusable. It is a boolean attribute.
What is the syntax for select tag?
HTML tag is used to create drop down list of options, which appears when the user clicks on form element, and it allows to choose one of the options. The tag is used to define the possible options to choose from. The tag is put into the tag.