JSTLC tag Library

1. choose is used to control nesting and action processing. DEMO code: 2. The forEach action calculates a fixed number of times for the body repeatedly, or calculates the body for each element in a set. DEMO code:

1. choose

Used to control nesting And Action processing.

DEMO code:

...

....

2. forEach

The action calculates a fixed number of times for the body, or calculates the body for each element in a set.

DEMO code:

3. forTokens

A tag can be used to separate a specified string based on a separator, which is equivalent to the java. util. StringTokenizer class.

DEMO code:

$ {Item}

4. if

The body of an action is calculated only when the specified expression is calculated as true.

DEMO code:

.....

5. import

The tag allows another JSP page to be included on this page.

DEMO code:

6. out

A tag is the most common label used to display data in JSP. It is used to replace the value of the output object through the out or <% = %> tag of the JSP internal object.
DEMO code:

7. param

It is used to pass parameters for pages that contain or redirect.
DEMO code:

8. redirect

Client requests can be directed from a JSP webpage to other files.
DEMO code:

9. remove

Tags are used to delete variables that exist in the scope.

Similar

<% Session. removeAttribute ("name") %>,
<% Request. removeAttribute ("name") %>...
DEMO code:

10. set

The tag is used to assign values to the attributes of variables or JavaBean variables. This label is used to set a specific value in a certain range (page, request, session, application, etc.) or to set the attributes of an existing javabean object. It is similar to <% request. setAttrbute ("name", "value"); %>

DEMO code:

11. when

A tag is equivalent to an "if" statement. It contains a test attribute, which indicates the conditions to be judged.

DEMO code:

Condition1 is true

12. url

It is mainly used to generate a URL.
DEMO code: