ThinkPHP
本文实例讲述了thinkPHP使用post方式查询时分页失效的解决方法。分享给大家供大家参考，具体如下：
昨天晚上一直没有解决的php项目中的bug，就在刚才终于搞定，在这里还需要感谢各位大神给的帮助！
具体问题描述
最近遇到一个非常棘手的问题，也是因为刚入手thinkphp。在做项目的过程中，因为需要非常多的查询条件，如果以get方式提交表单的话，会因为url长度限制而报错，所以必须使用post方式提交表单数据，但是在分页的过程中，遇到了问题，因为thinkphp自带的分页是以a标签的形式，进行下一页的，这样查询条件就没有传入后台，导致点击下一页的时候，出现空白。
查看了一下thinkphp官方手册，说了如果是POST方式查询，如何确保分页之后能够保持原先的查询条件呢，具体说明如下图所示：
但是我对手册有一处不解，既然是以通过a标签分页，这样$map（即查询条件参数）中的参数值是怎么传到后台的呢？我在网上也找到了了其他的一些方法，比如用$_REQUEST方式获得参数，说是包括了post和get方式的传值，但是thinkphp的分页是使用a标签来传参的这样的话，参数应该还是无法获得，尝试了几次，结果果然是失败的。还有其他的方法，看了一下都不靠谱。于是在昨晚在博问上提问了一下。有一位大神给我灵感，就是用js修改a标签的href属性。这样确实可以，然后我尝试了一直，终于解决了问题。
解决方法：
<html>
...
...
<body>
<form action="" id="form" method="POST">
....
....
</for>
...
...
<!--分页-->
<div class="Item hr" style="float:right;">
<div class="current" id="pageBar">{$page}</div>
</div>
...
...
<script type="text/javascript">
$(function(){
// 分页（修改链接方法）
$('#pageBar a').click(function(){
var tmpHref = $(this).attr('href');
tmpHref = tmpHref.replace(/\/selCon\//,"");
$("#form").attr("action", tmpHref);
$("#form").submit();
return false;
});
}
</script>
</body>
</html>
其中，selCon是form中的参数们，比如name='selCon.a'，name='selCon.b'......
按照上面的方法解决了点击下一页的时候，查询参数无法传递的问题。但是我又发现了一个问题，也就是说当我们进入第二页之后，然后再改变查询条件，这时查询出来的结果不是从第一个开始，而是从第二页开始，所以我们这里还需要在查询的时候在js中把p参数（当前页码）设置为1，具体方法如下：
<script type="text/javascript">
$(function(){
//查询
$("#selecting").click(function(){
$("#form").attr("action", "__URL__/listDept/p/1");
$("#form").submit();
});
}
</script>
希望本文所述对大家基于thinkPHP的php程序设计有所帮助。
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