5.2 为指定的属性设置值

到目前为止，你可能觉得像：

  1. <input type="submit" value="Subscribe!" th:attr="value=#{subscribe.submit}"/>

这样的标记片段，相当丑陋。在一个属性值的内部指定赋值操作可以是非常实用的，但是如果你不得不一直这么做的话，这并不是创建模版的最优雅的方式。

Thymeleaf和你意见一致，这也是在模版里几乎不使用th:attr的原因。通常，你会使用其它的th:*属性，为特定的标签属性设置值，而不是像th:attr一样为任何属性设置值。

例如，为了设置value属性，使用th:value：

  1. <input type="submit" value="Subscribe!" th:value="#{subscribe.submit}"/>

这看起来好多了！让我们尝试对form标签里的action属性也做相同的操作：

  1. <form action="subscribe.html" th:action="@{/subscribe}">

你还记得那些我们之前放进home.html的th:href吗？它们完全是同类属性：

  1. <li><a href="product/list.html" th:href="@{/product/list}">Product List</a></li>

有类似的相当多的属性，它们中的每一个都对应了一个特定的HTML5属性：
th:abbr th:accept th:accept-charset
th:accesskey th:action th:align
th:alt th:archive th:audio
th:autocomplete th:axis th:background
th:bgcolor th:border th:cellpadding
th:cellspacing th:challenge th:charset
th:cite th:class th:classid
th:codebase th:codetype th:cols
th:colspan th:compact th:content
th:contenteditable th:contextmenu th:data
th:datetime th:dir th:draggable
th:dropzone th:enctype th:for
th:form th:formaction th:formenctype
th:formmethod th:formtarget th:fragment
th:frame th:frameborder th:headers
th:height th:high th:href
th:hreflang th:hspace th:http-equiv
th:icon th:id th:inline
th:keytype th:kind th:label
th:lang th:list th:longdesc
th:low th:manifest th:marginheight
th:marginwidth th:max th:maxlength
th:media th:method th:min
th:name th:onabort th:onafterprint
th:onbeforeprint th:onbeforeunload th:onblur
th:oncanplay th:oncanplaythrough th:onchange
th:onclick th:oncontextmenu th:ondblclick
th:ondrag th:ondragend th:ondragenter
th:ondragleave th:ondragover th:ondragstart
th:ondrop th:ondurationchange th:onemptied
th:onended th:onerror th:onfocus
th:onformchange th:onforminput th:onhashchange
th:oninput th:oninvalid th:onkeydown
th:onkeypress th:onkeyup th:onload
th:onloadeddata th:onloadedmetadata th:onloadstart
th:onmessage th:onmousedown th:onmousemove
th:onmouseout th:onmouseover th:onmouseup
th:onmousewheel th:onoffline th:ononline
th:onpause th:onplay th:onplaying
th:onpopstate th:onprogress th:onratechange
th:onreadystatechange th:onredo th:onreset
th:onresize th:onscroll th:onseeked
th:onseeking th:onselect th:onshow
th:onstalled th:onstorage th:onsubmit
th:onsuspend th:ontimeupdate th:onundo
th:onunload th:onvolumechange th:onwaiting
th:optimum th:pattern th:placeholder
th:poster th:preload th:radiogroup
th:rel th:rev th:rows
th:rowspan th:rules th:sandbox
th:scheme th:scope th:scrolling
th:size th:sizes th:span
th:spellcheck th:src th:srclang
th:standby th:start th:step
th:style th:summary th:tabindex
th:target th:title th:type
th:usemap th:value th:valuetype
th:vspace th:width th:wrap
th:xmlbase th:xmllang th:xmlspace