前后端结合实现amazeUI分页
范兴文
前后端结合实现amazeUI分页
借鉴
本文在博客https://blog.csdn.net/brave_coder/article/details/52367124的基础上实现的，非常感谢大佬的分享。
前端实现
1、引入paginator.js
(function ($) {
$.fn.paginator = function (options) {
//this指向当前的选择器
var config = {
url: "",
pageParent: "",
totalBars: -1,
limit: -1,
offset: 1,
callback: null
}
//合并参数
var opts = $.extend(config, options);
opts.totalBars = Math.ceil(opts.totalBars / opts.limit);
//计算按钮的总个数
//获取offset参数
var queryString = function (url) {
var offset = (url.split("?")[1]).split("=")[1];
return parseInt(offset);
}
//ajax核心方法，用于分页的数据操作
var ajaxCore = function (offset, fn) {
$.ajax({
"url": opts.url,
"data": {
"offset": offset,
"limit": opts.limit
},
"dataType": "JSON",
"method": "POST",
"success": fn
});
}
//重新装配分页按钮
var pageCore = function (offset) {
if (opts.offset == offset) {
return;
} //如果是当前页面，那么就什么事都不用干了！
else {
ajaxCore(offset, opts.callback);
$(opts.pageParent).empty();
//否则，清空所有的节点，重新向DOM插入新的分页按钮
var output = "";
var nextBar = offset == opts.totalBars ? "<li class=\"am-disabled\"><a yxhref=\"javascript:;\">»</a></li>" : "<li><a yxhref=\"" + opts.url + (offset + 1) + "\">»</a></li>";
var preBar = offset == 1 ? "<li class=\"am-disabled\"><a yxhref=\"javascript:;\">«</a></li>" : "<li><a yxhref=\"" + opts.url + (offset - 1) + "\">«</a></li>";
//组装向上一个节点和下一页节点
if (opts.totalBars > 7) {
if (offset < 5) {
output += preBar;
for (var i = 1; i <= 5; i++) {
if (i == offset) {
output += "<li class=\"am-active\"><a yxhref=\"" + opts.url + offset + "\">" + offset + "</a></li>";
} else {
output += "<li><a yxhref=\"" + opts.url + i + "\">" + i + "</a></li>";
}
}
output += "<li><span>...</span></li>";
output += "<li><a yxhref=\"" + opts.url + (opts.totalBars) + "\">" + (opts.totalBars) + "</a></li>" + nextBar;
} else if (offset >= 5 && offset <= opts.totalBars - 4) {
//当页面大于7个的时候，那么在第五个和倒数第五个时，执行
output += preBar;
output += "<li><a yxhref=\"" + opts.url + 1 + "\">" + 1 + "</a></li>";
//第一个
output += "<li><span>...</span></li>"; //省略号
output += "<li><a yxhref=\"" + opts.url + (offset - 1) + "\">" + (offset - 1) + "</a></li>";
output += "<li class=\"am-active\"><a yxhref=\"" + opts.url + offset + "\">" + offset + "</a></li>";
output += "<li><a yxhref=\"" + opts.url + (offset + 1) + "\">" + (offset + 1) + "</a></li>";
output += "<li><span>...</span></li>"; //省略号;
output += "<li><a yxhref=\"" + opts.url + (opts.totalBars) + "\">" + (opts.totalBars) + "</a></li>"; //尾页
output += nextBar;
} else if (offset > opts.totalBars - 4 && offset <= opts.totalBars) {
//当页面位于倒数第四个时候
output += preBar;
output += "<li><a yxhref=\"" + opts.url + 1 + "\">" + 1 + "</a></li>" + "<li><span>...</span></li>";
for (var j = 4; j >= 0; j--) {
if (opts.totalBars - j == offset) {
output += "<li class=\"am-active\"><a yxhref=\"" + opts.url + (opts.totalBars - j) + "\">" + (opts.totalBars - j) + "</a></li>";
} else {
output += "<li><a yxhref=\"" + opts.url + (opts.totalBars - j) + "\">" + (opts.totalBars - j) + "</a></li>";
}
}
output += nextBar;
} else {
console.log("分页数据出错！");
return;
}
} else {
output += preBar;
for (var i = 1; i <= opts.totalBars; i++) {
if (i == offset) {
output += "<li class=\"am-active\"><a yxhref=\"" + opts.url + offset + "\">" + offset+ "</a></li>";
} else {
output += "<li><a yxhref=\"" + opts.url + i + "\">" + i+ "</a></li>";
}
}
output += nextBar;
}
$(opts.pageParent).append(output);
opts.offset = offset; //将偏移量赋值给config里面的offset
}
}
//清理函数，防止多绑定事件和重新计算分页
var clear = function () {
$(opts.pageParent).empty().undelegate();
}
//初始化装配分页按钮
var init = function (fn) {
if (typeof (fn) != "function") {
console.log("将不能正确的执行回调函数");
} else {
opts.callback = fn;
}
clear();
ajaxCore(1, opts.callback);//执行初始化ajax方法
var preBar = "<li class=\"am-disabled\"><a yxhref=\"javascript:;\">«</a></li>";
//上一页,（禁用的效果）
//如果只有一页，那么禁用下一页
var nextBar = opts.totalBars > 1 ? "<li><a yxhref=\"" + opts.url + 2 + "\">»</a></li>" : "<li class=\"am-disabled\"><a yxhref=\"javascript:;\">»</a></li>";
//最后一页
var output = "<li class=\"am-active\"><a yxhref=\"" + opts.url + 1 + "\">1</a></li>";
if (opts.totalBars <= 7) {
for (var i = 1; i < opts.totalBars; i++) {
output += "<li><a yxhref=\"" + opts.url + (i + 1) + "\">" + (i + 1) + "</a></li>";
}
} else {
for (var j = 1; j < 5; j++) {
output += "<li><a yxhref=\"" + opts.url + (j + 1) + "\">" + (j + 1) + "</a></li>";
}
output += "<li><span>...</span></li>";
output += "<li><a yxhref=\"" + opts.url + (opts.totalBars) + "\">" + (opts.totalBars) + "</a></li>";
}
$(opts.pageParent).delegate("a","click", function () {
var offset = queryString($(this).attr("yxhref"));
console.log("ok");
pageCore(offset);
});
$(opts.pageParent).append(preBar + output + nextBar);
};
init(opts.callback);//初始化分页引擎
}
}(window.jQuery))
2、获取总页数，再获取分页
$.ajax({
type: "GET",
url: selectSendNumberNumsByContURL,//获取总数
data: {},
dataType: "json",
success: function(data){
if (data[0].code == 200) {
$("#paginator").paginator({
url: selectSendNumberByContURL + "?offsets=",
pageParent: "#paginator",
totalBars: data[0].allNums,
limit: 10,
offset: 1,
callback: function (data1) {
//清空DOM节点
//动态加dom节点
}
});
}else{
}
},
error: function (err) {
}
});
后端实现（分页）
这里是controller，拿到offset（第几页）参数、limit（每页多少数量），再写SQL实现分页就好了。
@RequestMapping(value = "/selectNumberCheckByCont", method = RequestMethod.POST)
@ResponseBody
public List<ReturnUtils> selectNumberCheckByCont(HttpServletRequest request,
HttpServletResponse response) throws Exception {
//统一设置返回数据格式
response.setContentType("application/json");
response.setHeader("Pragma", "no-cache");
response.setCharacterEncoding("UTF-8");
String offset = request.getParameter("offset");
String limit = request.getParameter("limit");
List<ReturnUtils> list = iNumberCheckService.selectNumberCheckByCont(offset, limit);
return list;
}
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