本人前端知识相当于小白，初学SSM时，了解了layui前端框架，所以开始研究了数据表的增删改查，由于js、ajax知识不是很好，所以百度了相关ajax操作，用以借鉴。希望能帮助有需要的初
本人前端知识相当于小白，初学SSM时，了解了layui前端框架，所以开始研究了数据表的增删改查，由于js、ajax知识不是很好，所以百度了相关ajax操作，用以借鉴。希望能帮助有需要的初学者，不喜勿喷，另外有相关不足，希望大家可以指出，谢谢！
注： 以下前端代码都是利用layui的框架，后台是SSM
前端：
<%--
Created by IntelliJ IDEA.
User: SL
Date: 2019/2/26
Time: 14:03
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport"
content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
<title>layui在线调试</title>
<link rel="stylesheet" href="${ctx}/static/layui/css/layui.css?t=1545041465443" rel="external nofollow" media="all">
<script src="${ctx}/static/jquery/jquery-3.3.1.js"></script>
<style>
body {
margin: 10px;
}
.demo-carousel {
height: 200px;
line-height: 200px;
text-align: center;
}
</style>
</head>
<body>
<table class="layui-hide" id="demo" lay-filter="test"></table>
<script type="text/html" id="barDemo">
<a class="layui-btn layui-btn-primary layui-btn-xs" lay-event="detail">查看</a>
<a class="layui-btn layui-btn-xs" lay-event="edit">编辑</a>
<a class="layui-btn layui-btn-danger layui-btn-xs" lay-event="del">删除</a>
</script>
<script src="${ctx}/static/layui/layui.js?t=1545041465443" charset="utf-8"></script>
<!-- 注意：如果你直接复制所有代码到本地，上述js路径需要改成你本地的 -->
<script>
layui.config({
version: '1545041465443' //为了更新 js 缓存，可忽略
});
layui.use(['layer', 'table', 'element'], function () {
var layer = layui.layer //弹层
, table = layui.table //表格
, element = layui.element //元素操作
, form = layui.form
//监听Tab切换
element.on('tab(demo)', function (data) {
layer.tips('切换了 ' + data.index + '：' + this.innerHTML, this, {
tips: 1
});
});
//执行一个 table 实例
table.render({
elem: '#demo'
, height: 420
, url: '${ctx}/news/main/' //数据接口
, title: '新闻表'
, page: true //开启分页
, toolbar: 'default' //开启工具栏，此处显示默认图标，可以自定义模板，详见文档
, totalRow: true //开启合计行
, cols: [[ //表头
{type: 'checkbox', fixed: 'left'}
, {field: 'id', title: '新闻编号', width: 30, sort: true, fixed: 'left'}
, {field: 'title', title: '新闻名称', width: 180}
, {field: 'summary', title: '新闻摘要', width: 180}
, {field: 'author', title: '作者', width: 70}
, {field: 'createDate', title: '创建时间', width: 100}
, {fixed: 'right', width: 165, align: 'center', toolbar: '#barDemo'}
]]
});
//监听头工具栏事件
table.on('toolbar(test)', function (obj) {
var checkStatus = table.checkStatus(obj.config.id)
, data = checkStatus.data; //获取选中的数据
switch (obj.event) {
case 'add':
/*layer.msg('添加');*/
layer.open({
//layer提供了5种层类型。可传入的值有：0（信息框，默认）1（页面层）2（iframe层）3（加载层）4（tips层）
type: 1,
title: "添加新闻信息",
area: ['420px', '330px'],
content: $("#popAddTest")//引用的弹出层的页面层的方式加载修改界面表单
});
//动态向表传递赋值可以参看文章进行修改界面的更新前数据的显示，当然也是异步请求的要数据的修改数据的获取
/*setFormValue(obj,data);*/
form.on('submit(submit12)', function (massage) {
$.ajax({
url: '${ctx}/news/add/',
type: 'POST',
dataType: 'json',
contentType: "application/json; charset=utf-8",
data: JSON.stringify({
/*id: JSON.stringify(data.id),*/
id: data.id,
newtitle: massage.field.newtitle,
newsummary: massage.field.newsummary,
newauthor: massage.field.newauthor
}),
success: function (msg) {
var returnCode = msg.returnCode;//取得返回数据（Sting类型的字符串）的信息进行取值判断
if (returnCode == 200) {
layer.closeAll('loading');
layer.load(2);
layer.msg("添加成功", {icon: 6});
setTimeout(function () {
location.reload();//刷新页面
/* layer.closeAll();//关闭所有的弹出层*/
},
1000
);
//加载层-风格
} else {
layer.msg("添加失败", {icon: 5});
}
}
})
return false;//false：阻止表单跳转 true：表单跳转
})
break;
case 'update':
if (data.length === 0) {
layer.msg('请选择一行');
} else if (data.length > 1) {
layer.msg('只能同时编辑一个');
} else {
layer.alert('编辑 [id]：' + checkStatus.data[0].id);
}
break;
case 'delete': /*批量删除*/
if (data.length === 0) {
layer.msg('请选择需要删除的数据');
} else {
/*layer.msg('删除');*/
/* var checkStatus = table.checkStatus('demo');*/
var ids = "";
for(var i=0;i<data.length;i++){
ids += data[i].id+",";
}
alert(ids);
parent.layer.msg('删除中...', {icon: 16,shade: 0.3,time:2000});
$.ajax({
url: '${ctx}/news/mulDelete/',
type: 'POST',
dataType: 'json',
contentType: "application/json; charset=utf-8",
data: JSON.stringify({
/*id: JSON.stringify(data.id),*/
ids: ids
}),
success: function (msg) {
var returnCode = msg.returnCode;//取得返回数据（Sting类型的字符串）的信息进行取值判断
if (returnCode == 200) {
layer.closeAll('loading');
layer.load(2);
layer.msg("删除成功", {icon: 6});
setTimeout(function () {
location.reload();//刷新页面
/* layer.closeAll();//关闭所有的弹出层*/
},
1000
);
//加载层-风格
} else {
layer.msg("删除失败", {icon: 5});
}
}
})
return false;//false：阻止表单跳转 true：表单跳转
}
break;
}
;
});
//监听行工具事件
table.on('tool(test)', function (obj) { //注：tool 是工具条事件名，test 是 table 原始容器的属性 lay-filter="对应的值"
var data = obj.data //获得当前行数据
, layEvent = obj.event; //获得 lay-event 对应的值
if (layEvent === 'detail') {
layer.msg('查看操作');
} else if (layEvent === 'del') {
/*layer.confirm('真的删除行么', function(index){
obj.del(); //删除对应行（tr）的DOM结构
layer.close(index);
//向服务端发送删除指令
});*/
layer.confirm('真的删除行么', function (index) {
obj.del(); //删除对应行（tr）的DOM结构
layer.close(index);
//向服务端发送删除指令
$.ajax({
url: '${ctx}/news/delete/'
, type: 'POST'
, data: "{\"id\":\"" + data.id + "\"}"
, dataType: 'json'
, contentType: "application/json; charset=utf-8"
, success: function (msg) {
var returnCode = msg.returnCode;//取得返回数据（Sting类型的字符串）的信息进行取值判断
if (returnCode == 200) {
layer.closeAll('loading');
layer.load(2);
layer.msg("删除成功", {icon: 6});
setTimeout(function () {
location.reload();//刷新页面
/* layer.closeAll();//关闭所有的弹出层*/
},
1000
);
//加载层-风格
} else {
layer.msg("删除失败", {icon: 5});
}
}
});
return false;
});
} else if (layEvent === 'edit') {
/* layer.prompt({
formType: 2
,value: data.summary
}, function(value, index){
obj.update({
summary: value
});
layer.close(index);
});*/
$("#newtitle").val(data.title);
$("#newsummary").val(data.summary);
$("#newauthor").val(data.author);
layer.open({
//layer提供了5种层类型。可传入的值有：0（信息框，默认）1（页面层）2（iframe层）3（加载层）4（tips层）
type: 1,
title: "修改新闻信息",
area: ['420px', '330px'],
content: $("#popUpdateTest")//引用的弹出层的页面层的方式加载修改界面表单
});
//动态向表传递赋值可以参看文章进行修改界面的更新前数据的显示，当然也是异步请求的要数据的修改数据的获取
/*setFormValue(obj,data);*/
form.on('submit(submit11)', function (massage) {
$.ajax({
url: '${ctx}/news/update/',
type: 'POST',
dataType: 'json',
contentType: "application/json; charset=utf-8",
data: JSON.stringify({
/*id: JSON.stringify(data.id),*/
id: data.id,
newtitle: massage.field.newtitle,
newsummary: massage.field.newsummary,
newauthor: massage.field.newauthor
}),
success: function (msg) {
var returnCode = msg.returnCode;//取得返回数据（Sting类型的字符串）的信息进行取值判断
if (returnCode == 200) {
layer.closeAll('loading');
layer.load(2);
layer.msg("修改成功", {icon: 6});
setTimeout(function () {
obj.update({
title: massage.field.newtitle,
summary: massage.field.newsummary,
author: massage.field.newauthor
});//修改成功修改表格数据不进行跳转
location.reload();//刷新页面
/* layer.closeAll();//关闭所有的弹出层*/
},
1000
);
//加载层-风格
} else {
layer.msg("修改失败", {icon: 5});
}
}
})
return false;//false：阻止表单跳转 true：表单跳转
})
}
});
});
</script>
<%--这里是弹出层表单（修改）--%>
<div class="layui-row" id="popUpdateTest" style="display:none;">
<div class="layui-col-md10">
<form class="layui-form layui-from-pane" action="" style="margin-top:20px" method="">
<div class="layui-form-item"><label class="layui-form-label">新闻标题</label>
<div class="layui-input-block"><input type="text" name="newtitle" id="newtitle"
autocomplete="off" placeholder="请输入新闻标题" class="layui-input">
</div>
</div>
<div class="layui-form-item"><label class="layui-form-label">新闻摘要</label>
<div class="layui-input-block"><input type="text" name="newsummary" id="newsummary"
autocomplete="off" placeholder="请输入新闻编号" class="layui-input">
</div>
</div>
<div class="layui-form-item"><label class="layui-form-label">作者</label>
<div class="layui-input-block"><input type="text" name="newauthor" id="newauthor"
autocomplete="off" placeholder="请输入作者" class="layui-input">
</div>
</div>
<div class="layui-form-item" style="margin-top:40px">
<div class="layui-input-block">
<button class="layui-btn layui-btn-submit " lay-submit="" lay-filter="submit11">确认修改</button>
<button type="reset" class="layui-btn layui-btn-primary">重置</button>
</div>
</div>
</form>
</div>
</div>
<%--这里是弹出层表单（添加）--%>
<div class="layui-row" id="popAddTest" style="display:none;">
<div class="layui-col-md10">
<form class="layui-form layui-from-pane" action="" style="margin-top:20px" method="">
<div class="layui-form-item"><label class="layui-form-label">新闻标题</label>
<div class="layui-input-block"><input type="text" name="newtitle"
autocomplete="off" placeholder="请输入新闻标题" class="layui-input">
</div>
</div>
<div class="layui-form-item"><label class="layui-form-label">新闻摘要</label>
<div class="layui-input-block"><input type="text" name="newsummary"
autocomplete="off" placeholder="请输入新闻编号" class="layui-input">
</div>
</div>
<div class="layui-form-item"><label class="layui-form-label">作者</label>
<div class="layui-input-block"><input type="text" name="newauthor"
autocomplete="off" placeholder="请输入作者" class="layui-input">
</div>
</div>
<div class="layui-form-item" style="margin-top:40px">
<div class="layui-input-block">
<button class="layui-btn layui-btn-submit " lay-submit="" lay-filter="submit12">确认添加</button>
<button type="reset" class="layui-btn layui-btn-primary">重置</button>
</div>
</div>
</form>
</div>
</div>
</body>
</html>
后台：
package com.sl.controller;
import com.sl.model.NewsDetail;
import com.sl.service.NewsDetailService;
import com.sl.util.DateUtil;
import org.codehaus.jackson.map.ObjectMapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.*;
import javax.servlet.http.HttpSession;
import java.io.IOException;
import java.time.format.DateTimeFormatter;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
@Controller
@RequestMapping("/news")
public class NewsDetailController {
/*注入NewsDetailService*/
/**
*
*/
@Autowired
private NewsDetailService newsDetailService;
@RequestMapping("/main")
@ResponseBody
private Map<String, Object> queryAll() {
Map<String, Object> map = new HashMap<>();
List<NewsDetail> list = newsDetailService.queryAll();
int count = newsDetailService.queryAllCount();
map.put("data", list);
map.put("code", 0);
map.put("count", count);
return map;
}
@RequestMapping(value = "/delete", method = RequestMethod.POST, produces = "application/json")
@ResponseBody
private Map<String, Object> deleteById(@RequestBody HashMap<String, String> map2) {
Map<String, Object> map = new HashMap<>();
int id = Integer.parseInt(map2.get("id"));
int row = newsDetailService.deleteById(id);
if (row == 1) {
List<NewsDetail> list = newsDetailService.queryAll();
int count = newsDetailService.queryAllCount();
map.put("data", list);
map.put("returnCode", "200");
map.put("count", count);
map.put("code", 0);
return map;
} else {
map.put("code", 1);
return map;
}
}
@RequestMapping(value = "/mulDelete", method = RequestMethod.POST, produces = "application/json")
@ResponseBody
public Map<String, Object> mulDelete(@RequestBody HashMap<String, String> map2){
Map<String, Object> map = new HashMap<>();
String ids = map2.get("ids");
String mulid[] = ids.split(",");
int row = 0;
for(int i=0; i<mulid.length; i++){
row = newsDetailService.mulDelete(mulid[i]);
}
if(row != 0){
List<NewsDetail> list = newsDetailService.queryAll();
int count = newsDetailService.queryAllCount();
map.put("code", 0);
map.put("data", list);
map.put("count", count);
map.put("returnCode", "200");
return map;
} else {
map.put("code", -1);
return map;
}
}
@RequestMapping(value = "/update", method = RequestMethod.POST, produces = "application/json")
@ResponseBody
public Map<String, Object> updateById(@RequestBody HashMap<String, String> map2) throws IOException {
Map<String, Object> map = new HashMap<>();
int id = Integer.parseInt(map2.get("id"));
String title = map2.get("newtitle");
String summary = map2.get("newsummary");
String author = map2.get("newauthor");
/*System.out.println(id+" "+title +" "+summary+" "+author);
System.out.println(1);
System.out.println(new Date());
System.out.println(DateUtil.getCurrentDateString());
System.out.println(2);*/
NewsDetail newsDetail = new NewsDetail();
newsDetail.setId(id);
newsDetail.setTitle(title);
newsDetail.setSummary(summary);
newsDetail.setAuthor(author);
newsDetail.setCreateDate(DateUtil.formatDate(new Date(), "yyyy-MM-dd HH-mm-ss"));
/*System.out.println(newsDetail.getCreateDate());
System.out.println(DateUtil.formatDate(new Date(), "yyyy-MM-dd HH-mm-ss"));*/
int row = newsDetailService.updateById(newsDetail);
if (row == 1) {
List<NewsDetail> list = newsDetailService.queryAll();
int count = newsDetailService.queryAllCount();
map.put("data", list);
map.put("count", count);
map.put("code", 0);
map.put("returnCode", "200");
return map;
} else {
map.put("code", 1);
return map;
}
}
@RequestMapping("/update2")
@ResponseBody
public Map<String, Object> update2(NewsDetail newsDetail) {
Map<String, Object> map = new HashMap<>();
/*newsDetail.setCreateDate(new Date());*/
int row = newsDetailService.updateById(newsDetail);
if (row == 1) {
List<NewsDetail> list = newsDetailService.queryAll();
int count = newsDetailService.queryAllCount();
map.put("data", list);
map.put("count", count);
map.put("code", 0);
return map;
} else {
map.put("code", 1);
return map;
}
}
@RequestMapping("/add")
@ResponseBody
public Map<String, Object> add(@RequestBody HashMap<String, String> map2) {
Map<String, Object> map = new HashMap<>();
String title = map2.get("newtitle");
String summary = map2.get("newsummary");
String author = map2.get("newauthor");
NewsDetail newsDetail = new NewsDetail();
newsDetail.setTitle(title);
newsDetail.setSummary(summary);
newsDetail.setAuthor(author);
newsDetail.setCreateDate(DateUtil.formatDate(new Date(), "yyyy-MM-dd HH-mm-ss"));
boolean row = newsDetailService.addNews(newsDetail);
if (row) {
List<NewsDetail> list = newsDetailService.queryAll();
int count = newsDetailService.queryAllCount();
map.put("data", list);
map.put("count", count);
map.put("returnCode", "200");
map.put("code", 0);
return map;
} else {
map.put("code", 1);
return map;
}
}
}
亲测有效，希望大家提出不足！谢谢！另外后台里面有一个时间转换的类（DateUtil.formatDate（）），前端有一个例如url: '${ctx}/news/update/'，其中的${cxt}是一个指定的路径，后台写了一个类，这些有需要的，可以看我的博客，谢谢！
以上这篇layui+SSM的数据表的增删改实例(利用弹框添加、修改)就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持易盾网络。