One of the view technologies you can use with the Spring Framework is Java Server Pages (JSPs). To help you implement views using Java Server Pages the Spring Framework provides you with some tags for evaluating errors, setting themes and outputting internationalized messages. Please note that the various tags generated by this form tag library are compliant with the XHTML-1.0-Strict specification and attendant DTD. This appendix describes the spring.tld tag library.

Provides BindStatus object for the given bind path. The HTML escaping flag participates in a page-wide or application-wide setting (i.e. by HtmlEscapeTag or a "defaultHtmlEscape" context-param in web.xml). Attribute Required? Runtime Expression? Description htmlEscape false true Set HTML escaping for this tag, as boolean value. Overrides the default HTML escaping setting for the current page. ignoreNestedPath false true Set whether to ignore a nested path, if any. Default is to not ignore. path true true The path to the bean or bean property to bind status information for. For instance account.name, company.address.zipCode or just employee. The status object will exported to the page scope, specifically for this bean or bean property

Escapes its enclosed body content, applying HTML escaping and/or JavaScript escaping. The HTML escaping flag participates in a page-wide or application-wide setting (i.e. by HtmlEscapeTag or a "defaultHtmlEscape" context-param in web.xml). Attribute Required? Runtime Expression? Description htmlEscape false true Set HTML escaping for this tag, as boolean value. Overrides the default HTML escaping setting for the current page. javaScriptEscape false true Set JavaScript escaping for this tag, as boolean value. Default is false.

Provides Errors instance in case of bind errors. The HTML escaping flag participates in a page-wide or application-wide setting (i.e. by HtmlEscapeTag or a "defaultHtmlEscape" context-param in web.xml). Attribute Required? Runtime Expression? Description htmlEscape false true Set HTML escaping for this tag, as boolean value. Overrides the default HTML escaping setting for the current page. name true true The name of the bean in the request, that needs to be inspected for errors. If errors are available for this bean, they will be bound under the 'errors' key.

Sets default HTML escape value for the current page. Overrides a "defaultHtmlEscape" context-param in web.xml, if any. Attribute Required? Runtime Expression? Description defaultHtmlEscape true true Set the default value for HTML escaping, to be put into the current PageContext.

Retrieves the message with the given code, or text if code isn't resolvable. The HTML escaping flag participates in a page-wide or application-wide setting (i.e. by HtmlEscapeTag or a "defaultHtmlEscape" context-param in web.xml). Attribute Required? Runtime Expression? Description arguments false true Set optional message arguments for this tag, as a (comma-)delimited String (each String argument can contain JSP EL), an Object array (used as argument array), or a single Object (used as single argument). argumentSeparator false true The separator character to be used for splitting the arguments string value; defaults to a 'comma' (','). code false true The code (key) to use when looking up the message. If code is not provided, the text attribute will be used. htmlEscape false true Set HTML escaping for this tag, as boolean value. Overrides the default HTML escaping setting for the current page. javaScriptEscape false true Set JavaScript escaping for this tag, as boolean value. Default is false. message false true A MessageSourceResolvable argument (direct or through JSP EL). Fits nicely when used in conjunction with Spring's own validation error classes which all implement the MessageSourceResolvable interface. For example, this allows you to iterate over all of the errors in a form, passing each error (using a runtime expression) as the value of this 'message' attribute, thus effecting the easy display of such error messages. scope false true The scope to use when exporting the result to a variable. This attribute is only used when var is also set. Possible values are page, request, session and application. text false true Default text to output when a message for the given code could not be found. If both text and code are not set, the tag will output null. var false true The string to use when binding the result to the page, request, session or application scope. If not specified, the result gets outputted to the writer (i.e. typically directly to the JSP).

Sets a nested path to be used by the bind tag's path. Attribute Required? Runtime Expression? Description path true true Set the path that this tag should apply. E.g. 'customer' to allow bind paths like 'address.street' rather than 'customer.address.street'.

Retrieves the theme message with the given code, or text if code isn't resolvable. The HTML escaping flag participates in a page-wide or application-wide setting (i.e. by HtmlEscapeTag or a "defaultHtmlEscape" context-param in web.xml). Attribute Required? Runtime Expression? Description arguments false true Set optional message arguments for this tag, as a (comma-)delimited String (each String argument can contain JSP EL), an Object array (used as argument array), or a single Object (used as single argument). argumentSeparator false true The separator character to be used for splitting the arguments string value; defaults to a 'comma' (','). code false true The code (key) to use when looking up the message. If code is not provided, the text attribute will be used. htmlEscape false true Set HTML escaping for this tag, as boolean value. Overrides the default HTML escaping setting for the current page. javaScriptEscape false true Set JavaScript escaping for this tag, as boolean value. Default is false. message false true A MessageSourceResolvable argument (direct or through JSP EL). scope false true The scope to use when exporting the result to a variable. This attribute is only used when var is also set. Possible values are page, request, session and application. text false true Default text to output when a message for the given code could not be found. If both text and code are not set, the tag will output null. var false true The string to use when binding the result to the page, request, session or application scope. If not specified, the result gets outputted to the writer (i.e. typically directly to the JSP).

Provides transformation of variables to Strings, using an appropriate custom PropertyEditor from BindTag (can only be used inside BindTag). The HTML escaping flag participates in a page-wide or application-wide setting (i.e. by HtmlEscapeTag or a 'defaultHtmlEscape' context-param in web.xml). Attribute Required? Runtime Expression? Description htmlEscape false true Set HTML escaping for this tag, as boolean value. Overrides the default HTML escaping setting for the current page. scope false true The scope to use when exported the result to a variable. This attribute is only used when var is also set. Possible values are page, request, session and application. value true true The value to transform. This is the actual object you want to have transformed (for instance a Date). Using the PropertyEditor that is currently in use by the 'spring:bind' tag. var false true The string to use when binding the result to the page, request, session or application scope. If not specified, the result gets outputted to the writer (i.e. typically directly to the JSP).

Creates URLs with support for URI template variables, HTML/XML escaping, and Javascript escaping. Modeled after the JSTL c:url tag with backwards compatibility in mind. Attribute Required? Runtime Expression? Description url true true The URL to build. This value can include template {placeholders} that are replaced with the URL encoded value of the named parameter. Parameters must be defined using the param tag inside the body of this tag. context false true Specifies a remote application context path. The default is the current application context path. var false true The name of the variable to export the URL value to. If not specified the URL is written as output. scope false true The scope for the var. 'application', 'session', 'request' and 'page' scopes are supported. Defaults to page scope. This attribute has no effect unless the var attribute is also defined. htmlEscape false true Set HTML escaping for this tag, as a boolean value. Overrides the default HTML escaping setting for the current page. javaScriptEscape false true Set JavaScript escaping for this tag, as a boolean value. Default is false.

Evaluates a Spring expression (SpEL) and either prints the result or assigns it to a variable. Attribute Required? Runtime Expression? Description expression true true The expression to evaluate. var false true The name of the variable to export the evaluation result to. If not specified the evaluation result is converted to a String and written as output. scope false true The scope for the var. 'application', 'session', 'request' and 'page' scopes are supported. Defaults to page scope. This attribute has no effect unless the var attribute is also defined. htmlEscape false true Set HTML escaping for this tag, as a boolean value. Overrides the default HTML escaping setting for the current page. javaScriptEscape false true Set JavaScript escaping for this tag, as a boolean value. Default is false.