function deleteM(id){
//直接删掉 数据库假删除
/ alert(id);
$ /("#div"+id)remove();
$ajax({
url:"${pageContextrequestcontextPath}/servlet/MenuServletmethod=delete",
data:"id="+id,
success:function(data){
$("#div"+id)remove();
}
});
}
<body>
This is menu selectAll JSP page <br>
<jsp:include page="/servlet/MenuServletmethod=findAll"></jsp:include>
<p></p>
<div class="table-1">
<div class="tr-1">
<div class="td-1">序号</div>
<div class="td-1">标题</div>
<div class="td-1">连接地址</div>
<div class="td-1">排序</div>
<div class="td-1">录入时间</div>
<div class="td-1"> *** 作</div>
<div class="clear"></div>
</div>
</div>
<c:forEach items="${requestScopemenus }" var="a" varStatus="stat">
<div class="table-1">
<div class="tr-1" id="div${aid}">
<div class="td-1">${statcount }</div>
<div class="td-1">${atitle }</div>
<div class="td-1">${aurl}</div>
<div class="td-1">${asort }</div>
<div class="td-1" id="timer">${ainputTime }</div>
<div class="td-1">
<a href="javascript:void(0)" onclick="javascript:deleteM(${aid})" return false; id="deleteM${aid}">删除</a>
<a href="javascript:void(0)" onclick="javascript:updateM(${aid})" return false; id="updateM${aid}">修改</a>
<a style="display: none;" href="javascript:void(0)" onclick="javascript:submitM(${aid})" return false;id="okM${aid}">确定</a>
<a style="display: none;" href="javascript:void(0)" onclick="javascript:cancalM(${aid})" return false;id="cancalM{aid}">取消</a>
</div>
<div class="clear"></div>
</div>
</div>
</c:forEach>
<p></p>
<p></p>
<div id="table-1">
<c:forEach begin="1" end="${requestScopepagerpageCount }" var="i">
<c:if test="${i eq requestScopepagerpageNo }" var="isPageNo">
<span style="color:black">[${i }]</span>
</c:if>
<c:if test="${not isPageNo }">
<a href="${pageContextrequestcontextPath }/manage/menu/selectAlljsppageNo=${i}">[${i }]</a>
</c:if>
</c:forEach>
</div>
<p></p>
<p></p>
<div id="table-1">
<div class="tr-1">
<div class="td-2" ><a href="javascript:void(0)" onclick="javascript:insertM()">添加菜单项</a></div>
<div class="clear"></div>
</div>
</div>
<div id="table-1">
<div class="tr-1">
<div class="td-2" id=titleInsert>标题:<input required /></div>
<div class="td-2" id="urlsInsert">连接地址:<input required /></div>
<div class="td-2" id="sortInsert">排序:<input required onBlur="checkSort()"/></div>
<div class="td-2" ><a href="#" onclick="javascript:insertM();return false;">添加</a>
<a href="javascript:void(0)" onclick="javascript:cancalM2()">取消</a></div>
<div class="clear"></div>
</div>
</div>
<p></p>
<p></p>
<p></p>
<p></p>
<div id="table-1">
<div class="tr-1">
<div class="td-2" ><a href="javascript:void(0)" onclick="javascript:selectM()">我好想找点什么</a></div>
<div class="clear"></div>
</div>
</div>
<div id="table-1">
<div class="tr-1">
<div class="td-2" > <select id="sss" onChange="selectWay()">
<option value="s1"> 按录入时间查找:</option>
<option value="s2"> 按ID查找:</option>
<option value="s3">按排序查找:</option>
</select>
</div>
<div class="td-2" id="selectMByTime">
开始时间:<input type="datetime-local"/>结束时间:<input type="datetime-local"/>
<a href="javascript:void(0)" onclick="javascript:submitM(${ainputTime})">开找</a>
<a href="javascript:void(0)" onclick="javascript:cancalC(${ainputTime})">取消</a>
</div>
<div class="td-2" style="display: none;" id="selectMById">
ID:<input type="text" />
<a href="javascript:void(0)" onclick="javascript:submitM(${aid})">开找</a>
<a href="javascript:void(0)" onclick="javascript:cancalC(${aid})">取消</a>
</div>
<div class="td-2" style="display: none;" id="selectMBySort">
降序：<input type="radio" name="sort" id="up" checked />倒序：<input type="radio" name="sort" id="desc" />
<a href="javascript:void(0)" onclick="javascript:submitM(${asort})">开找</a>
<a href="javascript:void(0)" onclick="javascript:cancalC(${asort})">取消</a>
</div>
<div class="td-2" style="display: none;" ></div>
</div>
</div>
</body>
没有js的头`他说字数超限了
一段一段看：
(select from 1 order by id desc) 查询？1表中的数据，按照id倒排序
(select f,rownum rn from (select from 1 order by id desc) f where rownum<=2) 查询出的结果中取 小于 2 行的数据
select from (select f,rownum rn from (select from 1 order by id desc) f where rownum<=2) where rn>3 在小于 ？2行的数据中，取大于 3 行的数据。
也就是说， 获取 ？3 到 ？2 行的数据
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