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htmlarraysgrailstags

delegate.replace() is not working on Array List Grails 2.3.8

Here's my code in order to replace HTML tags:

  def str
  String.metaClass.removeHtml {
      def removeThisHtml = [
         [htmlCode: "`",  value: "`"], 
         [htmlCode: "@",  value: "@"], 
         [htmlCode: "&",  value: "&"],
         [htmlCode: "\",  value: "\\"],
         [htmlCode: """, value: '"'], 
         [htmlCode: "'",  value: "'"], 
         [htmlCode: "&lt;",   value: "<"],
         [htmlCode: "&gt;",   value: ">"]
      ]

      removeThisHtml.each { element ->
         str = delegate.replace(element.htmlCode, element.value)
      } 
      return str
  }

And here is the code form my controller:

def getProjectLists() {
  def currentUser = springSecurityService.currentUser
  def kups = ([['name':'<b>Sample 1</b>'.removeHtml()],['name':'<b>Sample 2</b>']])
  render kups as JSON  
}

My expected output is:

< b >Sample1< / b> Sample2

But the output is:

Sample1 Sample2

Solution

  • I think what you really want is to escape HTML - display HTML tags and entities, so the function's name removeHtml is a bit misleading, escapeHtml would fit it better.

    Generally I recommend not to do things like this by your self as others have already done that and most likely do it better.

    For example Apache Commons has an StringEscapeUtils.escapeHtml method.

    String.metaClass.removeHtml { 
    return org.apache.commons.lang.StringEscapeUtils.escapeHtml(delegate) 
}