JSP jstl fn:startsWith() 函数



  • jstl fn:startsWith() 函数

    fn:startsWith() 函数确定的输入字符串开始于指定的子字符串。
  • 语法

    fn:startsWith() 函数具有以下语法-
           
    boolean startsWith(java.lang.String, java.lang.String)
    
    
  • 示例

    以下示例说明了fn:startsWith()函数的功能-
    
    <%@ taglib uri = "http://java.sun.com/jsp/jstl/core" prefix = "c" %>
    <%@ taglib uri = "http://java.sun.com/jsp/jstl/functions" prefix = "fn" %>
    
    <html>
       <head>
          <title>Using JSTL Functions</title>
       </head>
    
       <body>
          <c:set var = "string" value = "Second: This is first String."/>
          
          <c:if test = "${fn:startsWith(string, 'First')}">
             <p>String starts with First</p>
          </c:if>
          
          <br />
          <c:if test = "${fn:startsWith(string, 'Second')}">
             <p>String starts with Second</p>
          </c:if>
       
       </body>
    </html>
    
    
    上面的代码将产生以下结果-
    
    String starts with Second