1. 表头设计
原理：
和多叉树的原理类似，参考了它的展示形式。
多叉树.png
表头说明：
如果没有孩子节点就只返回如下一个字段：
- name ：名字
如果有孩子节点，就把数据加在children里面，层层嵌套，返回字段如下：
- name ：名字
- children : 孩子节点
数据结构格式，参考如下代码：
headerData:[
{
name: '地区',
},
{
name: '总数据',
children: [
{
name: '数据1',
children: [
{
name: '数据11',
children: [
{
name: '数据111',
},
{
name: '数据112',
}
]
},
{
name: '数据12',
children: [
{
name: '数据121',
},
{
name: '数据122',
}
]
},
{
name: '数据13',
children: [
{
name: '数据131',
},
{
name: '数据132',
}
]
},
{
name: '数据14',
},
]
}
]
}
];
表头的宽高方面，前端计算，后端不用管，按照如下格式返回数据即可。
2. 表格数据格式
每一项按照表头展示的顺序返回，通过数组的形式
返回一个参数：
- bodyData：总数据
数据结构格式参考代码如下：
bodyData:[
["地区最先","数据111","数据112","数据121","数据122","数据131","数据132","数据14"],
["地区","数据111","数据112","数据121","数据122","数据131","数据132","数据14"],
["地区","数据111","数据112","数据121","数据122","数据131","数据132","数据14"],
["地区","数据111","数据112","数据121","数据122","数据131","数据132","数据14"],
["地区","数据111","数据112","数据121","数据122","数据131","数据132","数据14"],
["地区","数据111","数据112","数据121","数据122","数据131","数据132","数据14"],
["地区","数据111","数据112","数据121","数据122","数据131","数据132","数据14"],
["地区","数据111","数据112","数据121","数据122","数据131","数据132","数据14"],
["地区","数据111","数据112","数据121","数据122","数据131","数据132","数据14"],
["地区最后","数据111","数据112","数据121","数据122","数据131","数据132","数据14"],
]
3. 效果
如上表头与表格数据代码生成的效果如图：
效果.png
4. 代码
语法高亮用到 codemirror 插件
/**
* 递归遍历 格式化数组
* @param { Array } paramArr 目标数组
* @param { Number } level 层级
*/
export function formatArray(paramArr, level) {
let levelFirst = Number(level)
const arr = []
let childArr = []
for (let i = 0; i < paramArr.length; i++) {
let obj = {}
for (let j in paramArr[i]) {
if (j != 'children') {
obj[j] = paramArr[i][j]
}
obj['level'] = levelFirst
obj['width'] = getLeafCountTree(paramArr[i])
if (!paramArr[i].children) {
obj['childrenNumber'] = 0
// LeafNode: 叶子节点就是树中最底段的节点
// obj['isLeafNode'] = true
} else {
// obj['isLeafNode'] = false
obj['childrenNumber'] = paramArr[i].children.length
}
}
arr.push(obj)
if (paramArr[i].children) {
let lev = Number(levelFirst) + 1
childArr = childArr.concat(formatArray(paramArr[i].children, lev));
}
}
let endArr = arr.concat(childArr)
return endArr
}
/**
* 获取 节点的所有叶子节点个数
* @param {Object} json Object对象
*/
export function getLeafCountTree(json) {
if(!json.children){
return 1;
}else{
var leafCount = 0;
for(var i = 0 ; i < json.children.length ; i++){
leafCount = leafCount + getLeafCountTree(json.children[i]);
}
return leafCount;
}
}
// json对对象字符串的格式化，美化
export function jsonFromat (text_value){
if(text_value == ""){
alert("不能为空");
return false;
} else {
var json=eval('(' + text_value + ')');
text_value=JSON.stringify(json);
var res="";
for(var i=0,j=0,k=0,ii,ele;i<text_value.length;i++)
{//k:缩进，j:""个数
ele=text_value.charAt(i);
if(j%2==0&&ele=="}")
{
k--;
for(ii=0;ii<k;ii++) ele=" "+ele;
ele="\n"+ele;
}
else if(j%2==0&&ele=="{")
{
ele+="\n";
k++;
for(ii=0;ii<k;ii++) ele+=" ";
}
else if(j%2==0&&ele==",")
{
ele+="\n";
for(ii=0;ii<k;ii++) ele+=" ";
}
else if(ele=="\"") j++;
res+=ele;
}
return res
}
}
<template>
<div class="pages-tables " id="pages-tables">
<div class="textarea">
<h1 class="title">复杂表头 json 数据格式验证：</h1>
<p class="message">表头展示效果如下：</p>
<div class="rolling-table auto-table" ref="tableBox" :style="{height: maxHeight + 'px'}">
<table class="table" id="table" cellpadding="0" cellspacing="0" ref="rollingTable">
<thead ref="thead">
<tr v-for="(x,i) in headerList" :key="i">
<th class="rows " :class="{'cross': index == 0 && i == 0}" v-for="(l,index) in x" :key="index" :colspan="l.width" :rowspan="l.height">{{l.name}}</th>
</tr>
</thead>
<tbody>
<tr v-for="(b,i) in bodyList" :key="i + 'a'">
<template v-for="(x, index) in b">
<td :class="{'cols': index == 0 }" :key="index + 'b'">
{{ x | valueFromt }}
</td>
</template>
</tr>
<tr></tr>
</tbody>
</table>
</div>
<p class="message">提示：输入 json 覆盖原来的即可，且有验证 json 格式是否正确的功能</p>
<div class="control">
<!-- <div class="content fl">
<p>select a theme:
<select @change="selectTheme" v-model="selected">
<option>default</option>
<option>night</option>
<option>monokai</option>
<option>neat</option>
<option>elegant</option>
<option>cobalt</option>
<option>eclipse</option>
<option>rubyblue</option>
<option>lesser-dark</option>
<option>xq-dark</option>
</select>
</p>
</div>
<div class="content fl ml20">
<p>select the editor language:
<select @change="selectMode" v-model="mode">
<option>javascript</option>
<option>php</option>
<option>python</option>
<option>vue</option>
<option>xml</option>
<option>sql</option>
<option>http</option>
<option>css</option>
<option>sass</option>
<option>jsx</option>
<option>django</option>
</select>
</p>
</div>
<div class="content fl ml20">
<p>select keyMap:
<select @change="selectKeyMap" v-model="keyMap">
<option>default</option>
<option>emacs</option>
<option>sublime</option>
<option>vim</option>
</select>
</p>
</div> -->
<div class="fl ml20 mt20 mb10 submit">
<mt-button type="primary" size="small" @click.native="setInputValue">提交</mt-button>
</div>
<div class="clearfix"></div>
</div>
<textarea id="code" name="code">
[
{
name: '地区',
},
{
name: '总数据',
children: [
{
name: '数据1',
children: [
{
name: '数据11',
children: [{
name: '数据111',
},
{
name: '数据112',
}
]
},
{
name: '数据12',
children: [{
name: '数据121',
},
{
name: '数据122',
}
]
},
{
name: '数据13',
children: [{
name: '数据131',
},
{
name: '数据132',
}
]
},
{
name: '数据14',
},
{
name: '数据15',
},
{
name: '数据16数据16数据16数据16',
},
{
name: '数据17',
},
]
}
]
}
];
</textarea>
</div>
</div>
</template>
<script>
// 说明这个 demo 是给 pc 端用的，单位要为 px
import { formatArray, getLeafCountTree, jsonFromat } from "libs/common/common";
import { Button, MessageBox } from 'mint-ui';
import * as CodeMirror from 'codemirror/lib/codemirror'
// 根据设置的主题，引入相应的主题包,主题包存储在theme下，使用其他主题包时设置option中theme为对应主题
import 'codemirror/lib/codemirror.css'
import 'codemirror/theme/monokai.css'
import 'codemirror/theme/neat.css'
import 'codemirror/theme/elegant.css'
import 'codemirror/theme/night.css'
import 'codemirror/theme/cobalt.css'
import 'codemirror/theme/eclipse.css'
import 'codemirror/theme/rubyblue.css'
import 'codemirror/theme/xq-dark.css'
// styleActiveLine: 设置光标所在行高亮true/false，需引入工具包：
import 'codemirror/addon/selection/active-line'
// 根据设置的编辑器语言，引入相应工具包,以下为常用语言包
import 'codemirror/mode/javascript/javascript'
import 'codemirror/mode/go/go'
import 'codemirror/mode/php/php'
import 'codemirror/mode/python/python'
import 'codemirror/mode/http/http'
import 'codemirror/mode/sql/sql'
import 'codemirror/mode/vue/vue'
import 'codemirror/mode/xml/xml'
import 'codemirror/mode/css/css'
import 'codemirror/mode/sass/sass'
import 'codemirror/mode/jsx/jsx'
import 'codemirror/mode/django/django'
// keyMap：快捷键，default使用默认快捷键，除此之外包括emacs，sublime，vim快捷键，使用需引入工具
import 'codemirror/keymap/sublime.js'
import 'codemirror/keymap/emacs.js'
import 'codemirror/keymap/vim.js'
// extraKeys 快捷键,例如 {“Ctrl-Q”: “autocomplete”}：自动补全使用需要引入工具
import 'codemirror/addon/hint/show-hint'
import 'codemirror/addon/hint/javascript-hint'
import 'codemirror/addon/hint/sql-hint'
import 'codemirror/addon/hint/html-hint'
import 'codemirror/addon/hint/xml-hint'
import 'codemirror/addon/hint/anyword-hint'
import 'codemirror/addon/hint/css-hint'
import 'codemirror/addon/hint/show-hint'
export default {
data() {
return {
mapArray: [],
keyMap: 'default',
mode: 'javascript',
editor: '',
selected: 'monokai',
header: '',
maxHeight: '100%',
theadHeight: '100%',
offsetHeight: 0,
scroll: {
scroller: null
},
headerList: [],
bodyList: [],
}
},
filters: {
valueFromt: function (value) {
let realValue = ''
if (!value) return ''
value = value.toString()
if (value.length > 20) {
realValue = value.slice(0, 15) + '...'
} else {
realValue = value
}
return realValue
},
},
methods: {
selectKeyMap(){
this.editor.addKeyMap(this.keyMap)
},
selectMode(){
this.editor.setOption("mode",this.mode)
},
selectTheme() {
this.editor.setOption("theme", this.selected);
},
setInputValue() {
this.header = this.editor.getValue();
if(this.header){
this.change()
}
},
change() {
try {
const newData = formatArray(eval(this.header), 0)
let maxLevel = newData[newData.length - 1].level
this.setHeight(newData, maxLevel + 1)
this.arayLayered(newData, maxLevel)
this.headerList = this.arayLayered(newData, maxLevel)
} catch (e) {
console.log('e:', e)
MessageBox('提示', '请检查 json 格式是否正确！！!');
}
},
setHeight(arr, maxLevel) {
// console.log("setHeight maxLevel", maxLevel)
for (let i = maxLevel; i >= 0; i--) {
for (let j = 0; j < arr.length; j++) {
// 设置高
if (arr[j].childrenNumber) {
arr[j].height = 1
} else {
arr[j].height = maxLevel - arr[j].level
}
}
}
return arr
},
arayLayered(arr, maxLevel) {
let returnArr = []
for (let i = 0; i <= maxLevel; i++) {
let arrLevel = []
for (let j = 0; j < arr.length; j++) {
if (arr[j].level == i) {
arrLevel.push(arr[j])
}
}
returnArr[i] = arrLevel
}
return returnArr
}
},
mounted() {
let bodyListA = [
["地区最先", "数据111", "数据112", "数据121", "数据122", "数据131", "数据132", "数据14"],
["地区", "数据111", "数据112", "数据121", "数据122", "数据131", "数据132", "数据14"],
["地区", "数据111", "数据112", "数据121", "数据122", "数据131", "数据132", "数据14"],
["地区", "数据111", "数据112", "数据121", "数据122", "数据131", "数据132", "数据14"],
["地区", "数据111", "数据112", "数据121", "数据122", "数据131", "数据132", "数据14"],
["地区", "数据111", "数据112", "数据121", "数据122", "数据131", "数据132", "数据14"],
["地区", "数据111", "数据112", "数据121", "数据122", "数据131", "数据132", "数据14"],
["地区", "数据111", "数据112", "数据121", "数据122", "数据131", "数据132", "数据14"],
["地区", "数据111", "数据112", "数据121", "数据122", "数据131", "数据132", "数据14"],
["地区最后", "数据111", "数据112", "数据121", "数据122", "数据131", "数据132", "数据14"],
]
const data = [
{
name: '地区',
},
{
name: '总数据',
children: [
{
name: '数据1',
children: [
{
name: '数据11',
children: [{
name: '数据111',
},
{
name: '数据112',
}
]
},
{
name: '数据12',
children: [{
name: '数据121',
},
{
name: '数据122',
}
]
},
{
name: '数据13',
children: [{
name: '数据131',
},
{
name: '数据132',
}
]
},
{
name: '数据14',
},
{
name: '数据15',
},
{
name: '数据16数据16数据16数据16',
},
{
name: '数据17',
},
]
}
]
}
];
this.header = jsonFromat(JSON.stringify(data))
const newData = formatArray(data, 0)
let maxLevel = newData[newData.length - 1].level
this.setHeight(newData, maxLevel + 1)
this.arayLayered(newData, maxLevel)
this.headerList = this.arayLayered(newData, maxLevel)
this.editor = CodeMirror.fromTextArea(document.getElementById("code"), {
// value : data, // 文本域默认显示的文本
lineNumbers: true, /* 定义是否显示行号 */
mode: "javascript", /* 定义语法的类型，如果是html则为：text/html */
theme: "monokai", /* 定义主题 */
smartIndent: true, // 是否智能缩进
styleActiveLine: true,
keymap:"defaule"
});
// this.editor.on("changes",() =>{
// //编译器内容更改事件
// this.setInputValue();
// });
this.editor.setSize(1200,500)
}
}
</script>
<style lang="less" >
.CodeMirror {
border: 1px solid black;
line-height: 16px;
font-size: 16px;
text-align: left;
}
</style>
<style lang="less" scoped>
.submit{
margin-left: 580px;
margin-top: 20px;
}
textarea{
width: 1300px;
height: 1300px;
}
.content{
font-size: 16px;
}
.textarea{
text-align: center;
font-size: 20px;
.title{
margin-top: 20px;
font-size: 30px;
color: #333;
}
textarea{
border: 1px solid #eee;
font-size: 16px;
resize: both;
width: 800px;
min-height: 900px;
}
}
.message{
color: red;
font-size: 16px;
}
.waterMask {
position: absolute;
width: 100%;
height: 100%;
z-index: 4;
pointer-events: none;
}
.pages-tables {
-webkit-overflow-scrolling: touch; // ios滑动顺畅
position: relative;
margin-left: 5%;
padding-bottom: 160px;
margin: 0 auto;
width: 1200px;
}
.rolling-table {
height: 100%;
font-size: 0.28rem;
color: #86939a;
background-color: #fff;
width: 100%;
-webkit-overflow-scrolling: touch;
position: relative;
top: 0;
// overflow: hidden;
}
.rows {
position: relative;
z-index: 3;
}
.cross {
position: relative;
z-index: 5;
}
table td {
border: 0px solid #000;
font-size: 25px;
background: #fff;
}
::-webkit-scrollbar {
display: none;
}
.table {
border-collapse: collapse; //去掉重复的border
color: #86939e;
font-size: 25px;
border: 0px solid #000;
min-height: 100%;
text-align: center;
td {
border-bottom: 1px solid #eee;
height: 30px;
line-height: 30px;
padding: 0 0.2rem;
// white-space: nowrap;
white-space: inherit;
max-width: 500px;
min-width: 50px;
// overflow:hidden;
// text-overflow:ellipsis;
// -webkit-line-clamp:2;
}
th {
color: #43484d;
white-space: pre-wrap;
height: 36px;
line-height: 36px;
padding: 5px 6px;
background-color: #f3f4f6;
font-weight: normal;
padding-bottom: 0;
padding-top: 0;
max-width: 200px;
border: 1px solid red;
&:last-child{
// border-right: 0rem solid #e4e8f5;
}
}
}
tr{
position: relative;
background-color: #fff;
&:nth-of-type(odd){
td{
background-color: #ebf9fc;
}
}
}
</style>
5. 效果链接：
效果链接如下:
动态效果：
动态效果.gif
