我知道有很多这种性质的问题,但我需要使用JavaScript来做到这一点。我使用Dojo 1.8并在数组中拥有所有属性信息,它看起来像这样:
[["name1", "city_name1", ...]["name2", "city_name2", ...]]
知道我如何在客户端将此导出为CSV吗?
我知道有很多这种性质的问题,但我需要使用JavaScript来做到这一点。我使用Dojo 1.8并在数组中拥有所有属性信息,它看起来像这样:
[["name1", "city_name1", ...]["name2", "city_name2", ...]]
知道我如何在客户端将此导出为CSV吗?
当前回答
在Chrome 35更新中,下载属性行为发生改变。
https://code.google.com/p/chromium/issues/detail?id=373182
要在chrome中工作,使用这个
var pom = document.createElement('a');
var csvContent=csv; //here we load our csv data
var blob = new Blob([csvContent],{type: 'text/csv;charset=utf-8;'});
var url = URL.createObjectURL(blob);
pom.href = url;
pom.setAttribute('download', 'foo.csv');
pom.click();
其他回答
用csv数据创建一个blob。ie var blob = new blob ([data], type:"text/csv");
如果浏览器支持保存blob,即如果window.navigator. msaveoropenblob)===true,则使用:window.navigator保存csv数据。“filename.csv”msSaveBlob (blob)
如果浏览器不支持保存和打开blob,则将csv数据保存为:
var downloadLink = document.createElement('<a></a>');
downloadLink.attr('href', window.URL.createObjectURL(blob));
downloadLink.attr('download', filename);
downloadLink.attr('target', '_blank');
document.body.append(downloadLink);
完整代码片段:
var filename = 'data_'+(new Date()).getTime()+'.csv';
var charset = "utf-8";
var blob = new Blob([data], {
type: "text/csv;charset="+ charset + ";"
});
if (window.navigator.msSaveOrOpenBlob) {
window.navigator.msSaveBlob(blob, filename);
} else {
var downloadLink = document.element('<a></a>');
downloadLink.attr('href', window.URL.createObjectURL(blob));
downloadLink.attr('download', filename);
downloadLink.attr('target', '_blank');
document.body.append(downloadLink);
downloadLink[0].click();
}
您可以在原生JavaScript中做到这一点。你必须把你的数据解析成正确的CSV格式(假设你在问题中描述的数据使用数组的数组):
const rows = [
["name1", "city1", "some other info"],
["name2", "city2", "more info"]
];
let csvContent = "data:text/csv;charset=utf-8,";
rows.forEach(function(rowArray) {
let row = rowArray.join(",");
csvContent += row + "\r\n";
});
或者更简单的方法(使用箭头函数):
const rows = [
["name1", "city1", "some other info"],
["name2", "city2", "more info"]
];
let csvContent = "data:text/csv;charset=utf-8,"
+ rows.map(e => e.join(",")).join("\n");
然后就可以使用JavaScript的窗口了。open和encodeURI函数下载CSV文件,如下所示:
var encodedUri = encodeURI(csvContent);
window.open(encodedUri);
编辑:如果你想给你的文件一个特定的名字,你必须做一些不同的事情,因为这是不支持访问一个数据URI使用窗口。开放的方法。为了实现这一点,你可以创建一个隐藏的<a> DOM节点,并将其下载属性设置如下:
var encodedUri = encodeURI(csvContent);
var link = document.createElement("a");
link.setAttribute("href", encodedUri);
link.setAttribute("download", "my_data.csv");
document.body.appendChild(link); // Required for FF
link.click(); // This will download the data file named "my_data.csv".
这是基于已接受答案的修改答案,其中数据将来自JSON。
JSON Data Ouptut:
0 :{emails: "SAMPLE Co., peter@samplecompany.com"}, 1:{emails: "Another CO. , ronald@another.com"}
JS:
$.getJSON('yourlink_goes_here', { if_you_have_parameters}, function(data) {
var csvContent = "data:text/csv;charset=utf-8,";
var dataString = '';
$.each(data, function(k, v) {
dataString += v.emails + "\n";
});
csvContent += dataString;
var encodedUri = encodeURI(csvContent);
var link = document.createElement("a");
link.setAttribute("href", encodedUri);
link.setAttribute("download", "your_filename.csv");
document.body.appendChild(link); // Required for FF
link.click();
});
ES6的一个箭头函数:
const dataToCsvURI = (data) => encodeURI(
`data:text/csv;charset=utf-8,${data.map((row, index) => row.join(',')).join(`\n`)}`
);
然后:
window.open(
dataToCsvURI(
[["name1", "city_name1"/*, ...*/], ["name2", "city_name2"/*, ...*/]]
)
);
如果有人在reactjs中需要这个,react-csv就在那里
//It work in Chrome and IE ... I reviewed and readed a lot of answer. then i used it and tested in both ...
var link = document.createElement("a");
if (link.download !== undefined) { // feature detection
// Browsers that support HTML5 download attribute
var blob = new Blob([CSV], { type: 'text/csv;charset=utf-8;' });
var url = URL.createObjectURL(blob);
link.setAttribute("href", url);
link.setAttribute("download", fileName);
link.style = "visibility:hidden";
}
if (navigator.msSaveBlob) { // IE 10+
link.addEventListener("click", function (event) {
var blob = new Blob([CSV], {
"type": "text/csv;charset=utf-8;"
});
navigator.msSaveBlob(blob, fileName);
}, false);
}
document.body.appendChild(link);
link.click();
document.body.removeChild(link);
//Regards