Spread JSON 导入/导出 | 功能例子 | SpreadJS JavaScript 学习指南

有一些选项会控制序列化的结果，例如：使用 JSON.stringify 把 spread toJSON 的返回的对象序列化成JSON字符串。还有一些选项会控制反序列化的结果，例如：使用 JSON.parse 把JSON字符串反序列化成对象, 然后再用 fromJSON 来初始化 spread 对象。这样你就得到了一个和原来的 spread1 对象一样的新的 spread2 对象。例如：

import * as React from 'react';
import * as ReactDOM from 'react-dom';
import '@grapecity-software/spread-sheets-resources-zh';
GC.Spread.Common.CultureManager.culture("zh-cn");
import GC from '@grapecity-software/spread-sheets';
import "@grapecity-software/spread-sheets-shapes";
import "@grapecity-software/spread-sheets-pivot-addon";
import { SpreadSheets, Worksheet, Column } from '@grapecity-software/spread-sheets-react';
import './styles.css';
const Component = React.Component;
function _getElementById(id) {
return document.getElementById(id);
}
class App extends Component {
constructor(props) {
super(props);
this.spread = null;
this.spread2 = null;
this.import_noFormula = false;
this.import_noStyle = false;
this.import_rowHeaders = false;
this.import_columnHeaders = false;
this.import_donotrecalculateafterload = false;
this.noFormula = false;
this.noStyle = false;
this.SaveCustomRowHeaders = false;
this.SaveCustomColumnHeaders = false;
}
render() {
return <div class="sample-tutorial">
<div class="sample-spreadsheets-container">
<label style={{ font: 'bold 10pt arial' }}>ToJson:</label>
<div class="sample-spreadsheets">
<SpreadSheets workbookInitialized={spread => this.initSpread(spread)}>
<Worksheet></Worksheet>
<Worksheet></Worksheet>
<Worksheet></Worksheet>
</SpreadSheets>
</div>
<br />
<label style={{ font: 'bold 10pt arial' }}>FromJson:</label>
<div class="sample-spreadsheets">
<SpreadSheets workbookInitialized={spread => this.initSpread2(spread)}>
<Worksheet></Worksheet>
</SpreadSheets>
</div>
</div>
<div className="options-container">
<div style={{ width: '290px' }}>
<label>This serializes the first Spread instance to a JSON object, and then deserializes that object into the second Spread instance.</label>
<div className="option-row">
<input type="button" defaultValue="Json Serialize" id="fromtoJsonBtn" onClick={e => this.serialization(e)} />
</div>
<div>
<div className="container">
<div className="row" style={{ marginTop: '10px' }}>
<div className="col-xs-12">
<label>FromJSON Options:</label>
<div style={{ marginTop: '10px' }}>
<input type="checkbox" id="import_noFormula" onChange={e => this.changeImport_noFormula(e)} />
<label style={{ textAlign: 'left' }} htmlFor="import_noFormula">Ignore Formula</label>
<input type="checkbox" id="import_noStyle" onChange={e => this.changeImport_noStyle(e)} />
<label style={{ textAlign: 'left' }} htmlFor="import_noStyle">Ignore Style</label>
</div>
<div style={{ marginTop: '10px' }}>
<input type="checkbox" id="import_rowHeaders" onChange={e => this.changeImport_rowHeaders(e)} />
<label style={{ textAlign: 'left' }} htmlFor="import_rowHeaders">Treat the frozen columns as row headers</label>
</div>
<div style={{ marginTop: '10px' }}>
<input type="checkbox" id="import_columnHeaders" onChange={e => this.changeImport_columnHeaders(e)} />
<label style={{ textAlign: 'left' }} htmlFor="import_columnHeaders">Treat the frozen rows as column headers</label>
</div>
<div style={{ marginTop: '10px' }}>
<input type="checkbox" id="import_donotrecalculateafterload" onChange={e => this.changeImport_donotrecalculateafterload(e)} />
<label style={{ textAlign: 'left' }} htmlFor="import_donotrecalculateafterload">Avoid recalculation after load</label>
</div>
</div>
</div>
<div className="row" style={{ marginTop: '20px' }}>
<div className="col-xs-12">
<label>ToJSON Options:</label>
<div style={{ marginTop: '10px' }}>
<input type="checkbox" id="noFormula" onChange={e => this.changeNoFormula(e)} />
<label style={{ textAlign: 'left' }} htmlFor="noFormula">Ignore Formula</label>
<input type="checkbox" id="noStyle" onChange={e => this.changeNoStyle(e)} />
<label style={{ textAlign: 'left' }} htmlFor="noStyle">Ignore Style</label>
</div>
<div style={{ marginTop: '10px' }}>
<input type="checkbox" id="SaveCustomRowHeaders" onChange={e => this.changeSaveCustomRowHeaders(e)} />
<label style={{ textAlign: 'left' }} htmlFor="SaveCustomRowHeaders">Treat the row headers as frozen columns</label>
</div>
<div style={{ marginTop: '10px' }}>
<input type="checkbox" id="SaveCustomColumnHeaders" onChange={e => this.changeSaveCustomColumnHeaders(e)} />
<label style={{ textAlign: 'left' }} htmlFor="SaveCustomColumnHeaders">Treat the column headers as frozen rows</label>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>;
}
initSpread(spread) {
this.spread = spread;
let sheet = spread.getSheet(0);
var spreadNS = GC.Spread.Sheets;
sheet.suspendPaint();
sheet.frozenRowCount(4);
sheet.frozenColumnCount(4);
sheet.addSpan(1, 1, 1, 3);
sheet.setValue(1, 1, 'Store');
sheet.addSpan(1, 4, 1, 7);
sheet.setValue(1, 4, 'Goods');
sheet.addSpan(2, 1, 1, 2);
sheet.setValue(2, 1, 'Area');
sheet.addSpan(2, 3, 2, 1);
sheet.setValue(2, 3, 'ID');
sheet.addSpan(2, 4, 1, 2);
sheet.setValue(2, 4, 'Fruits');
sheet.addSpan(2, 6, 1, 2);
sheet.setValue(2, 6, 'Vegetables');
sheet.addSpan(2, 8, 1, 2);
sheet.setValue(2, 8, 'Foods');
sheet.addSpan(2, 10, 2, 1);
sheet.setValue(2, 10, 'Total');
sheet.setValue(3, 1, 'State');
sheet.setValue(3, 2, 'City');
sheet.setValue(3, 4, 'Grape');
sheet.setValue(3, 5, 'Apple');
sheet.setValue(3, 6, 'Potato');
sheet.setValue(3, 7, 'Tomato');
sheet.setValue(3, 8, 'SandWich');
sheet.setValue(3, 9, 'Hamburger');
sheet.addSpan(4, 1, 7, 1);
sheet.addSpan(4, 2, 3, 1);
sheet.addSpan(7, 2, 3, 1);
sheet.addSpan(10, 2, 1, 2);
sheet.setValue(10, 2, 'Sub Total:');
sheet.addSpan(11, 1, 7, 1);
sheet.addSpan(11, 2, 3, 1);
sheet.addSpan(14, 2, 3, 1);
sheet.addSpan(17, 2, 1, 2);
sheet.setValue(17, 2, 'Sub Total:');
sheet.addSpan(18, 1, 1, 3);
sheet.setValue(18, 1, 'Total:');
sheet.setValue(4, 1, 'NC');
sheet.setValue(4, 2, 'Raleigh');
sheet.setValue(7, 2, 'Charlotte');
sheet.setValue(4, 3, '001');
sheet.setValue(5, 3, '002');
sheet.setValue(6, 3, '003');
sheet.setValue(7, 3, '004');
sheet.setValue(8, 3, '005');
sheet.setValue(9, 3, '006');
sheet.setValue(11, 1, 'PA');
sheet.setValue(11, 2, 'Philadelphia');
sheet.setValue(14, 2, 'Pittsburgh');
sheet.setValue(11, 3, '007');
sheet.setValue(12, 3, '008');
sheet.setValue(13, 3, '009');
sheet.setValue(14, 3, '010');
sheet.setValue(15, 3, '011');
sheet.setValue(16, 3, '012');
sheet.setFormula(10, 4, '=SUM(E5:E10)');
sheet.setFormula(10, 5, '=SUM(F5:F10)');
sheet.setFormula(10, 6, '=SUM(G5:G10)');
sheet.setFormula(10, 7, '=SUM(H5:H10)');
sheet.setFormula(10, 8, '=SUM(I5:I10)');
sheet.setFormula(10, 9, '=SUM(J5:J10)');
sheet.setFormula(17, 4, '=SUM(E12:E17)');
sheet.setFormula(17, 5, '=SUM(F12:F17)');
sheet.setFormula(17, 6, '=SUM(G12:G17)');
sheet.setFormula(17, 7, '=SUM(H12:H17)');
sheet.setFormula(17, 8, '=SUM(I12:I17)');
sheet.setFormula(17, 9, '=SUM(J12:J17)');
for (var i = 0; i < 14; i++) {
sheet.setFormula(4 + i, 10, '=SUM(E' + (5 + i).toString() + ':J' + (5 + i).toString() + ')');
}
sheet.setFormula(18, 4, '=E11+E18');
sheet.setFormula(18, 5, '=F11+F18');
sheet.setFormula(18, 6, '=G11+G18');
sheet.setFormula(18, 7, '=H11+H18');
sheet.setFormula(18, 8, '=I11+I18');
sheet.setFormula(18, 9, '=J11+J18');
sheet.setFormula(18, 10, '=K11+K18');
sheet.getRange(1, 1, 3, 10).backColor('#F2F2F2');
sheet.getRange(4, 1, 15, 3).backColor('#CFCFCF');
sheet.getRange(1, 1, 3, 10).hAlign(spreadNS.HorizontalAlign.center);
sheet.getRange(1, 1, 18, 10).setBorder(new spreadNS.LineBorder('Black', spreadNS.LineStyle.thin), { all: true });
sheet.getRange(4, 4, 3, 6).setBorder(new spreadNS.LineBorder('Black', spreadNS.LineStyle.dotted), { inside: true });
sheet.getRange(7, 4, 3, 6).setBorder(new spreadNS.LineBorder('Black', spreadNS.LineStyle.dotted), { inside: true });
sheet.getRange(11, 4, 3, 6).setBorder(new spreadNS.LineBorder('Black', spreadNS.LineStyle.dotted), { inside: true });
sheet.getRange(14, 4, 3, 6).setBorder(new spreadNS.LineBorder('Black', spreadNS.LineStyle.dotted), { inside: true });
this.fillSampleData(sheet, new spreadNS.Range(4, 4, 6, 6));
this.fillSampleData(sheet, new spreadNS.Range(11, 4, 6, 6));
sheet.resumePaint();
let pivotSourceSheet = spread.getSheet(1);
pivotSourceSheet.name("PivotSourceData");
let pivotSourceTableName = this.fillPivotSourceData(pivotSourceSheet);
let pivotTableSheet = spread.getSheet(2);
pivotTableSheet.name("PivotTable");
this.fillPivotTable(pivotTableSheet, pivotSourceTableName);
}
fillSampleData(sheet, range) {
for (var i = 0; i < range.rowCount; i++) {
for (var j = 0; j < range.colCount; j++) {
sheet.setValue(range.row + i, range.col + j, Math.ceil(Math.random() * 300));
}
}
}
fillPivotSourceData(sheet) {
sheet.setRowCount(117);
sheet.getCell(-1, 0).formatter("YYYY-mm-DD");
sheet.getRange(-1,4,0,2).formatter("$ #,##0");
let table = sheet.tables.add('table', 0, 0, 117, 6);
for(let i=2;i<=117;i++)
{
sheet.setFormula(i-1,5,'=D'+i+'*E'+i)
}
table.style(GC.Spread.Sheets.Tables.TableThemes["none"]);
sheet.setArray(0, 0, pivotSales);
return table.name();
}
fillPivotTable (sheet, tableName) {
sheet.setRowCount(1000);
let pivotTableOptions = {bandRows:true,bandColumns:true};
let pivotTable = sheet.pivotTables.add("PivotTable", tableName, 1, 1, GC.Spread.Pivot.PivotTableLayoutType.outline, GC.Spread.Pivot.PivotTableThemes.medium1, pivotTableOptions);
pivotTable.suspendLayout();
pivotTable.add("salesperson", "Salesperson", GC.Spread.Pivot.PivotTableFieldType.rowField);
pivotTable.add("car", "Cars", GC.Spread.Pivot.PivotTableFieldType.rowField);
pivotTable.add("date", "Date", GC.Spread.Pivot.PivotTableFieldType.columnField);
let groupInfo = { originFieldName: "date", dateGroups: [{ by: GC.Pivot.DateGroupType.quarters }] };
pivotTable.group(groupInfo);
pivotTable.add("total", "Totals", GC.Spread.Pivot.PivotTableFieldType.valueField, GC.Pivot.SubtotalType.sum);
let style = new GC.Spread.Sheets.Style();
style.formatter = "$ #,##0";
pivotTable.setStyle({dataOnly: true}, style);
pivotTable.resumeLayout();
pivotTable.autoFitColumn();
}
initSpread2(spread) {
this.spread2 = spread;
}
changeImport_noFormula(e) {
this.import_noFormula = e.target.checked;
}
changeImport_noStyle(e) {
this.import_noStyle = e.target.checked;
}
changeImport_rowHeaders(e) {
this.import_rowHeaders = e.target.checked;
}
changeImport_columnHeaders(e) {
this.import_columnHeaders = e.target.checked;
}
changeImport_donotrecalculateafterload(e) {
this.import_donotrecalculateafterload = e.target.checked;
}
changeNoFormula(e) {
this.noFormula = e.target.checked;
}
changeNoStyle(e) {
this.noStyle = e.target.checked;
}
changeSaveCustomRowHeaders(e) {
this.SaveCustomRowHeaders = e.target.checked;
}
changeSaveCustomColumnHeaders(e) {
this.SaveCustomColumnHeaders = e.target.checked;
}
serialization(e) {
var jsonOptions = {
ignoreFormula: this.import_noFormula,
ignoreStyle: this.import_noStyle,
frozenColumnsAsRowHeaders: this.import_rowHeaders,
frozenRowsAsColumnHeaders: this.import_columnHeaders,
doNotRecalculateAfterLoad: this.import_donotrecalculateafterload
};
var serializationOption = {
ignoreFormula: this.noFormula,
ignoreStyle: this.noStyle,
rowHeadersAsFrozenColumns: this.SaveCustomRowHeaders,
columnHeadersAsFrozenRows: this.SaveCustomColumnHeaders
};
//ToJson
var spread1 = this.spread;
var jsonStr = JSON.stringify(spread1.toJSON(serializationOption));
//FromJson
var spread2 = this.spread2;
spread2.fromJSON(JSON.parse(jsonStr), jsonOptions);
}
}
ReactDOM.render(<App />, _getElementById('app'));

<!doctype html>
<html style="height:100%;font-size:14px;">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<link rel="stylesheet" type="text/css"
href="$DEMOROOT$/zh/react/node_modules/@grapecity-software/spread-sheets/styles/gc.spread.sheets.excel2013white.css">
<script src="$DEMOROOT$/spread/source/data/pivot-data.js" type="text/javascript"></script>
<!-- SystemJS -->
<script src="$DEMOROOT$/zh/react/node_modules/systemjs/dist/system.src.js"></script>
<script src="systemjs.config.js"></script>
<script>
System.import('$DEMOROOT$/zh/lib/react/license.js').then(function() {
System.import('./src/app');
});
</script>
</head>
<body>
<div id="app"></div>
</body>
</html>

input[type="checkbox"] {
margin-left: 20px;
}
.colorLabel {
background-color: #F4F8EB;
}
.sample-tutorial {
position: relative;
height: 100%;
overflow: hidden;
}
.sample-spreadsheets-container {
width: calc(100% - 302px);
height: 600px;
overflow: hidden;
float: left;
}
.sample-spreadsheets {
width: 100%;
height: 260px;
}
.options-container {
float: right;
width: 302px;
padding: 12px;
height: 100%;
box-sizing: border-box;
background: #fbfbfb;
overflow: auto;
}
.option-row {
font-size: 14px;
padding: 5px;
margin-top: 10px;
}
label {
margin-bottom: 6px;
}
input {
padding: 4px 6px;
}
input[type=button] {
margin-top: 6px;
display: block;
}
body {
position: absolute;
top: 0;
bottom: 0;
left: 0;
right: 0;
}
#app {
height: 100%;
}

(function(global) {
System.config({
transpiler: 'plugin-babel',
babelOptions: {
es2015: true,
react: true
},
meta: {
'*.css': { loader: 'css' }
},
paths: {
// paths serve as alias
'npm:': 'node_modules/'
},
// map tells the System loader where to look for things
map: {
'@grapecity-software/spread-sheets': 'npm:@grapecity-software/spread-sheets/index.js',
'@grapecity-software/spread-sheets-resources-zh': 'npm:@grapecity-software/spread-sheets-resources-zh/index.js',
'@grapecity-software/spread-sheets-shapes': 'npm:@grapecity-software/spread-sheets-shapes/index.js',
'@grapecity-software/spread-sheets-pivot-addon': 'npm:@grapecity-software/spread-sheets-pivot-addon/index.js',
'@grapecity-software/spread-sheets-react': 'npm:@grapecity-software/spread-sheets-react/index.js',
'@grapecity-software/jsob-test-dependency-package/react-components': 'npm:@grapecity-software/jsob-test-dependency-package/react-components/index.js',
'react': 'npm:react/umd/react.production.min.js',
'react-dom': 'npm:react-dom/umd/react-dom.production.min.js',
'css': 'npm:systemjs-plugin-css/css.js',
'plugin-babel': 'npm:systemjs-plugin-babel/plugin-babel.js',
'systemjs-babel-build': 'npm:systemjs-plugin-babel/systemjs-babel-browser.js'
},
// packages tells the System loader how to load when no filename and/or no extension
packages: {
src: {
defaultExtension: 'jsx'
},
"node_modules": {
defaultExtension: 'js'
},
}
});
})(this);