您好,我正在尝试导出一个文件作为.csv文件,以便当用户点击下载按钮,浏览器将自动下载该文件作为.csv。我还希望能够为要导出的.csv文件设置名称
我正在使用javascript来做这件事。
代码如下:
function ConvertToCSV(objArray) {
var array = typeof objArray != 'object' ? JSON.parse(objArray) : objArray;
var str = '';
for (var i = 0; i < array.length; i++) {
var line = '';
for (var index in array[i]) {
if (line != '') line += ','
line += array[i][index];
}
str += line + '\r\n';
}
return str;
}
// Example
$(document).ready(function () {
// Create Object
var items = [
{ "name": "Item 1", "color": "Green", "size": "X-Large" },
{ "name": "Item 2", "color": "Green", "size": "X-Large" },
{ "name": "Item 3", "color": "Green", "size": "X-Large" }];
// Convert Object to JSON
var jsonObject = JSON.stringify(items);
// Display JSON
$('#json').text(jsonObject);
// Convert JSON to CSV & Display CSV
$('#csv').text(ConvertToCSV(jsonObject));
$("#download").click(function() {
alert("2");
var csv = ConvertToCSV(jsonObject);
window.open("data:text/csv;charset=utf-8," + escape(csv))
///////
});
});
请在这个问题上给我提建议我的老板在这个问题上紧盯着我
请帮帮忙
发布于 2014-07-09 09:16:43
我在这个帖子中写了一个解决方案:how to set a file name using window.open
这是一个简单的解决方案:
$("#download_1").click(function() {
var json_pre = '[{"Id":1,"UserName":"Sam Smith"},{"Id":2,"UserName":"Fred Frankly"},{"Id":1,"UserName":"Zachary Zupers"}]';
var json = $.parseJSON(json_pre);
var csv = JSON2CSV(json);
var downloadLink = document.createElement("a");
var blob = new Blob(["\ufeff", csv]);
var url = URL.createObjectURL(blob);
downloadLink.href = url;
downloadLink.download = "data.csv";
document.body.appendChild(downloadLink);
downloadLink.click();
document.body.removeChild(downloadLink);
});
JSON2CSV函数
function JSON2CSV(objArray) {
var array = typeof objArray != 'object' ? JSON.parse(objArray) : objArray;
var str = '';
var line = '';
if ($("#labels").is(':checked')) {
var head = array[0];
if ($("#quote").is(':checked')) {
for (var index in array[0]) {
var value = index + "";
line += '"' + value.replace(/"/g, '""') + '",';
}
} else {
for (var index in array[0]) {
line += index + ',';
}
}
line = line.slice(0, -1);
str += line + '\r\n';
}
for (var i = 0; i < array.length; i++) {
var line = '';
if ($("#quote").is(':checked')) {
for (var index in array[i]) {
var value = array[i][index] + "";
line += '"' + value.replace(/"/g, '""') + '",';
}
} else {
for (var index in array[i]) {
line += array[i][index] + ',';
}
}
line = line.slice(0, -1);
str += line + '\r\n';
}
return str;
}
发布于 2019-09-04 20:42:54
请尝试以下示例:
示例1:
JsonArray = [{
"AccountNumber": "1234",
"AccountName": "abc",
"port": "All",
"source": "sg-a78c04f8"
}, {
"Account Number": "1234",
"Account Name": "abc",
"port": 22,
"source": "0.0.0.0/0",
}]
JsonFields = ["Account Number","Account Name","port","source"]
function JsonToCSV(){
var csvStr = JsonFields.join(",") + "\n";
JsonArray.forEach(element => {
AccountNumber = element.AccountNumber;
AccountName = element.AccountName;
port = element.port
source = element.source
csvStr += AccountNumber + ',' + AccountName + ',' + port + ',' + source + "\n";
})
return csvStr;
}
您可以使用以下代码下载csv文件:
function downloadCSV(csvStr) {
var hiddenElement = document.createElement('a');
hiddenElement.href = 'data:text/csv;charset=utf-8,' + encodeURI(csvStr);
hiddenElement.target = '_blank';
hiddenElement.download = 'output.csv';
hiddenElement.click();
}
发布于 2018-02-21 11:34:06
我只是想在这里为将来的人们添加一些代码,因为我正在尝试将JSON导出为CSV文档并下载它。
我使用$.getJSON
从外部页面拉取json数据,但是如果您有一个基本的数组,您可以直接使用它。
它使用Christian Landgren's代码来创建csv数据。
$(document).ready(function() {
var JSONData = $.getJSON("GetJsonData.php", function(data) {
var items = data;
const replacer = (key, value) => value === null ? '' : value; // specify how you want to handle null values here
const header = Object.keys(items[0]);
let csv = items.map(row => header.map(fieldName => JSON.stringify(row[fieldName], replacer)).join(','));
csv.unshift(header.join(','));
csv = csv.join('\r\n');
//Download the file as CSV
var downloadLink = document.createElement("a");
var blob = new Blob(["\ufeff", csv]);
var url = URL.createObjectURL(blob);
downloadLink.href = url;
downloadLink.download = "DataDump.csv"; //Name the file here
document.body.appendChild(downloadLink);
downloadLink.click();
document.body.removeChild(downloadLink);
});
});
编辑:值得注意的是,通过添加\"
,JSON.stringify
将在引号中转义引号。如果您在excel中查看CSV,它不喜欢将其作为转义字符。
您可以将.replace(/\\"/g, '""')
添加到JSON.stringify(row[fieldName], replacer)
的末尾,以便在excel中正确显示(这将用excel首选的""
替换\"
)。
完整行:JSON.stringify(row[fieldName], replacer).replace(/\\"/g, '""')
https://stackoverflow.com/questions/17564103
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