组件化分页 索引业务逻辑分析

[ztse68]

	private void setIndex() {
		if (indexCount >= totalPage) {
			start = 1;
			end = totalPage;
		} else if (pageNo <= (totalPage % 2 == 0 ? totalPage / 2 : totalPage / 2)) {
			start = pageNo - (indexCount - 1) / 2;
			end = pageNo + (indexCount - 1) / 2;
			if (start <= 0) {
				end = end + 1 - start;
				start = 1;
			}
		} else {
			start = pageNo - (indexCount - 1) / 2;
			end = pageNo + (indexCount - 1) / 2;
			if (end > totalPage) {
				start = start - (end - totalPage);
				end = totalPage;
			}
		}
	}

在构造page对象的时候，执行了这个方法 其中else if (pageNo <= (totalPage % 2 == 0 ? totalPage / 2 : totalPage / 2))
end = end + 1 - start;
start = 1;

start = start - (end - totalPage);
end = totalPage;

没有看懂 希望帮忙分析一下作者思路 指点迷津 谢谢

[ztse68]

 <span>上页</span>
    <% } %>
	<% for (int i = page.getStart(); i <= page.getEnd(); i++) { %>
    <a href="javascript:;" onclick="doSearch(this, {'pageNo':'<%=i%>'})"><%=i%></a> 
	<% } %>
	
    <% if (page.isHasNext()) { %>
    <a href="javascript:;" onclick="doSearch(this, {'pageNo':'${page.pageNo + 1}'})">下页</a> 

那个 start end 是在这里用的

[小丑哥_V5]