Jsp session 11
- 1. SESSION – 11 By→ Anuj Kumar Singh
- 2. JSTL Function Tags The JSTL function provides a number of standard functions, most of these functions are common string manipulation functions. The syntax used for including JSTL function library in your JSP is: <%@ taglib uri="http://java.sun.com/jsp/jstl/functions" prefix="fn" %>
- 3. JSTL Functions Description fn:contains() It is used to test if an input string containing the specified substring in a program. fn:containsIgnoreCase() It is used to test if an input string contains the specified substring as a case insensitive way. fn:endsWith() It is used to test if an input string ends with the specified suffix. fn:escapeXml() It escapes the characters that would be interpreted as XML markup. fn:indexOf() It returns an index within a string of first occurrence of a specified substring. fn:trim() It removes the blank spaces from both the ends of a string. fn:startsWith() It is used for checking whether the given string is started with a particular string value. fn:split() It splits the string into an array of substrings. fn:toLowerCase() It converts all the characters of a string to lower case. JSTL Function list
- 4. fn:toUpperCase() It converts all the characters of a string to upper case. fn:substring() It returns the subset of a string according to the given start and end position. fn:substringAfter() It returns the subset of string after a specific substring. fn:substringBefore() It returns the subset of string before a specific substring. fn:length() It returns the number of characters inside a string, or the number of items in a collection. fn:replace() It replaces all the occurrence of a string with another string sequence. 1. JSTL fn:contains() Function The fn:contains() is used for testing if the string containing the specified substring. If the specified substring is found in the string, it returns true otherwise false. Syntax boolean contains(java.lang.String, java.lang.String)
- 6. 2. JSTL fn:containsIgnoreCase() Function 1. The fn:containsIgnoreCase() function is used to test if an input string contains the specified substring as a case insensitive way. During searching the specified substring it ignores the case. 2. The syntax used for including the fn:containsIgnoreCase() function is: boolean containsIgnoreCase(java.lang.String, java.lang.String)
- 8. 3. JSTL fn:endsWith() Function The fn:endsWith() function is used for testing if an input string ends with the specified suffix. If the string ends with a specified suffix, it returns true otherwise false. Syntax boolean endsWith(java.lang.String, java.lang.String)
- 10. 4. JSTL fn:escapeXml() Function The fn:escapeXml() function escapes the characters that would be interpreted as XML markup. It is used for escaping the character in XML markup language. Syntax java.lang.String escapeXml(java.lang.String)
- 12. 5. JSTL fn:indexOf() Function The fn:indexOf() function return an index of string. It is used for determining the index of string specified in substring. Syntax int indexOf(java.lang.String, java.lang.String)
- 14. 6. JSTL fn:trim() Function The fn:trim() function removes the blank spaces from both the ends of a string. It mainly used for ignoring the blank spaces from both the ends of string. Syntax java.lang.String trim(java.lang.String)