Struts logic tags are conditional tags that replaces scriptlets in the jsp files.<\/B><\/I><\/FONT><\/P> Logic tags available in the Struts Framework<\/FONT><\/P> Struts logic tags uses equal, greaterEqual, greaterThan, lessEqual, lessThan, notEqual<\/B> tags to compare the values. There are rules that must be followed :<\/FONT><\/P> Struts logic tags can also do the substring matching using the tags ( A In the subsequent section we will show you the examples of these tags.<\/FONT><\/P> Struts logic tags are conditional tags that replaces scriptlets in the jsp files. This tag library contains tags that do the following things : conditional generation of the output text, generate iterations to output the text, application flow management, matching strings and substrings… Logic tags available in the Struts Framework Tag Name Description empty If … Continue reading Struts Logic Tags: An Introduction<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-192","post","type-post","status-publish","format-standard","hentry"],"_links":{"self":[{"href":"https:\/\/www.strongd.net\/index.php?rest_route=\/wp\/v2\/posts\/192","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.strongd.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.strongd.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.strongd.net\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.strongd.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=192"}],"version-history":[{"count":0,"href":"https:\/\/www.strongd.net\/index.php?rest_route=\/wp\/v2\/posts\/192\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.strongd.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=192"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.strongd.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=192"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.strongd.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=192"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\nThis tag library contains tags that do the following things :
conditional generation of the output text,
generate iterations to output the text,
application flow management,
matching strings and substrings…
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\nTag Name<\/FONT><\/B><\/TD>
\nDescription<\/FONT><\/B><\/TD><\/TR>
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\nempty <\/FONT><\/TD>
\nIf the requested variable is either null or an empty string then the nested body content of this tag is evaluated<\/FONT><\/TD><\/TR>
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\nequal <\/FONT><\/TD>
\nIf the requested variable is equal to the specified value then the nested body content of this tag is evaluated<\/FONT><\/TD><\/TR>
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\nforward <\/FONT><\/TD>
\nIt forwards the control to the page specified by the specified ActionForward entry.<\/FONT><\/TD><\/TR>
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\ngreaterEqual<\/FONT><\/TD>
\nIf the value of the requested variable is greater than or equal to the specified value then the nested body content of this tag is evaluated<\/FONT><\/TD><\/TR>
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\ngreaterThan <\/FONT><\/TD>
\nIf the value of the requested variable is greater than the specified value then the nested body content of this tag is evaluated<\/FONT><\/TD><\/TR>
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\niterate <\/FONT><\/TD>
\nIt repeats the nested body content of this tag over a specified collection.<\/FONT><\/TD><\/TR>
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\nlessEqual <\/FONT><\/TD>
\nIf the value of the requested variable is less than or equal to the specified value then the nested body content of this tag is evaluated<\/FONT><\/TD><\/TR>
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\nlessThan<\/FONT><\/TD>
\nIf the value of the requested variable is less than the specified value then the nested body content of this tag is evaluated<\/FONT><\/TD><\/TR>
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\nmatch<\/FONT><\/TD>
\nEvaluates the nested body content of this tag if the specified value is an appropriate substring of the requested variable.<\/FONT><\/TD><\/TR>
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\nmessagesNotPresent<\/FONT><\/TD>
\nIf the specified message is not present in the request then it generates the nested body content of this tag .<\/FONT><\/TD><\/TR>
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\nmessagesPresent<\/FONT><\/TD>
\nIf the specified message is present in this request then it generates the nested body content of this tag .<\/FONT><\/TD><\/TR>
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\nnotEmpty<\/FONT><\/TD>
\nIf the requested variable is neither null nor an empty string nor an empty java.util.Collection (tested by the isEmpty() method on the java.util.Collection interface) then the nested body content of this tag is evaluated<\/FONT><\/TD><\/TR>
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\nnotEqual<\/FONT><\/TD>
\nIf the requested variable is not equal to the specified value then the nested body content of this tag is evaluated<\/FONT><\/TD><\/TR>
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\nnotMatch<\/FONT><\/TD>
\nIf the specified value is not an appropriate substring of the requested variable then the nested body content of this tag is evaluated <\/FONT><\/TD><\/TR>
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\nnotPresent<\/FONT><\/TD>
\nIf the specified value is not present in the request then it generates the nested body content of this tag .<\/FONT><\/TD><\/TR>
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\npresent<\/FONT><\/TD>
\nIf the specified value is present in the request then it generates the nested body content of this tag <\/FONT><\/TD><\/TR>
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\nredirect<\/FONT><\/TD>
\nIt renders an HTTP Redirect request.<\/FONT><\/TD><\/TR><\/TBODY><\/TABLE><\/DIV>
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\ndouble<\/CODE> or to a long<\/CODE>). Then a numeric (either floating point or integer) type comparison is done. If numeric conversion fails than a String comparison is performed.<\/FONT>
\ncookie<\/CODE>, header<\/CODE>, name<\/CODE>, parameter<\/CODE> or property<\/CODE> available to the specified tag. This variable is then converted to the appropriate type needed for the comparison..<\/FONT>
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\ntrue<\/CODE> value then only the specific comparison is performed and subsequently the nested body content is evaluated .<\/FONT> <\/LI><\/UL>
\nmatch<\/CODE>, notMatch<\/CODE><\/B>). There are rules that must be followed :<\/FONT><\/P>
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\ncookie<\/CODE>, header<\/CODE>, name<\/CODE>, parameter<\/CODE> or property<\/CODE> available on this tag. Then this variable is converted to a String, if necessary.<\/FONT>
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\nlocation<\/CODE> attribute Location can be specified at the beginning (if location is set to start<\/CODE>), at the end (if location is set to end<\/CODE>), or anywhere (if location is not specified).<\/FONT> <\/LI><\/UL>
\nJspException<\/B><\/CODE> is thrown at runtime if any tag is utilized incorrectly or any invalid combination of tag attributes are used. To process the actual exception that caused the problem, a request attribute under key org.apache.struts.action.EXCEPTION<\/B><\/CODE> is passed to the error page.<\/FONT><\/P>
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