我使用RDB并且没有关于REST或编程的经验..
我通常使用MSSQL并且擅长......
在couchdb上有一些我想导出到Excel的数据库。
如何将数据库导出到csv？
这是第一份文件来源的例子。
{
"_id": "0188d98de825528ce9c980f65d0024cc",
"_rev": "1-046e405f344709e96ee1ef51464871d1",
"contributors": null,
"truncated": false,
"text": "Plume test1",
"in_reply_to_status_id": null,
"id": 311079203028209660,
"favorite_count": 0,
"source": "<a href=\"http://www.myplume.com/\" rel=\"nofollow\">Plume for Android</a>",
"retweeted": false,
"coordinates": {
"type": "Point",
"coordinates": [
126.897899,
37.535298
]
},
"entities": {
"symbols": [
],
"user_mentions": [
],
"hashtags": [
],
"urls": [
]
},
"in_reply_to_screen_name": null,
"id_str": "311079203028209664",
"retweet_count": 0,
"in_reply_to_user_id": null,
"favorited": false,
"user": {
"id": 20825023,
"id_str": "20825023"
},
"geo": {
"type": "Point",
"coordinates": [
37.535298,
126.897899
]
},
"in_reply_to_user_id_str": null,
"lang": "et",
"created_at": "Mon Mar 11 11:40:36 +0000 2013",
"in_reply_to_status_id_str": null,
"place": null
}
我试过https://gist.github.com/xalakox/3026004但不行。
欲望导出的csv类似于
created at, text, source, coordinates1, coordinates2
Mon Mar 11 11:40:36 +0000 2013,Plume test1,Plume for Android,126.897899,37.535298
Mon Mar 11 11:40:36 +0000 2013,Plume test1,Plume for Android,126.897899,37.535298
Mon Mar 11 11:40:36 +0000 2013,Plume test1,Plume for Android,126.897899,37.535298
Mon Mar 11 11:40:36 +0000 2013,Plume test1,Plume for Android,126.897899,37.535298
答案 0 :(得分：1)
使用浏览器工具从JSON结果中获取CSV。这是来源：
<!doctype html>
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>JSON to CSV</title>
<meta name="og:title" content="JSON to CSV" />
<meta name="description" content="A simple, in-browser JSON viewer, and CSV converter." />
<meta name="og:description" content="A simple, in-browser JSON viewer and CSV converter." />
<meta name="author" content="Eric Mill" />
<meta name="twitter:creator" content="@konklone" />
<meta name="twitter:url" content="https://konklone.io/json/" />
<link rel="shortcut icon" href="/json/favicon.png" />
<link rel="canonical" href="https://konklone.io/json/" />
<!--
redirect users to the https version of the website.
but: only check when on the production domain.
-->
<script type="text/javascript">
var enforce = "konklone.io";
if ((enforce == window.location.host) && (window.location.protocol != "https:"))
window.location.protocol = "https";
</script>
<!-- jquery, jquery-csv,bootstrap -->
<script type='text/javascript' src='assets/jquery-2.1.1.min.js'></script>
<script src="assets/jquery.csv.js"></script>
<link href="assets/bootstrap.min.css" type="text/css" rel="stylesheet" />
<!-- site styles and JS -->
<link href="assets/site.css" type="text/css" rel="stylesheet" />
<link href="assets/github.css" type="text/css" rel="stylesheet" />
<script src="assets/site.js"></script>
<script src="assets/highlight.pack.js"></script>
<script>
var excerptRows = 7;
var input;
var url;
var lastSaved;
// function log(msg) {
// return $(".console").removeClass("error").html(msg);
// }
// function error(msg) {
// return log(msg).addClass("error");
// }
function doJSON() {
// just in case
$(".drop").hide();
// get input JSON, try to parse it
var newInput = $(".json textarea").val();
if (newInput == input) return;
input = newInput;
if (!input) {
// wipe the rendered version too
$(".json code").html("");
return;
}
var json = jsonFrom(input);
// if succeeded, prettify and highlight it
// highlight shows when textarea loses focus
if (json) {
// Reset any error message from previous failed parses.
$("div.error").hide();
$("div.warning").show();
var pretty = JSON.stringify(json, undefined, 2);
$(".json code").html(pretty);
if (pretty.length < (50 * 1024))
hljs.highlightBlock($(".json code").get(0));
// convert to CSV, make available
doCSV(json);
} else {
// Show error.
$("div.warning").hide();
$("div.error").show();
$(".json code").html("");
}
// Either way, update the error-reporting link to include the latest.
setErrorReporting(null, input);
return true;
}
// show rendered JSON
function showJSON(rendered) {
console.log("ordered to show JSON: " + rendered);
if (rendered) {
if ($(".json code").html()) {
console.log("there's code to show, showing...");
$(".json .rendered").show();
$(".json .editing").hide();
}
} else {
$(".json .rendered").hide();
$(".json .editing").show().focus();
}
}
function showCSV(rendered) {
if (rendered) {
if ($(".csv table").html()) {
$(".csv .rendered").show();
$(".csv .editing").hide();
}
} else {
$(".csv .rendered").hide();
$(".csv .editing").show().focus();
}
}
// takes an array of flat JSON objects, converts them to arrays
// renders them into a small table as an example
function renderCSV(objects) {
var rows = $.csv.fromObjects(objects, {justArrays: true});
if (rows.length < 1) return;
// find CSV table
var table = $(".csv table")[0];
$(table).html("");
// render header row
var thead = document.createElement("thead");
var tr = document.createElement("tr");
var header = rows[0];
for (field in header) {
var th = document.createElement("th");
$(th).html(header[field])
tr.appendChild(th);
}
thead.appendChild(tr);
// render body of table
var tbody = document.createElement("tbody");
for (var i=1; i<rows.length; i++) {
tr = document.createElement("tr");
for (field in rows[i]) {
var td = document.createElement("td");
$(td)
.html(rows[i][field])
.attr("title", rows[i][field]);
tr.appendChild(td);
}
tbody.appendChild(tr);
}
table.appendChild(thead);
table.appendChild(tbody);
}
function doCSV(json) {
// 1) find the primary array to iterate over
// 2) for each item in that array, recursively flatten it into a tabular object
// 3) turn that tabular object into a CSV row using jquery-csv
var inArray = arrayFrom(json);
var outArray = [];
for (var row in inArray)
outArray[outArray.length] = parse_object(inArray[row]);
$("span.rows.count").text("" + outArray.length);
var csv = $.csv.fromObjects(outArray);
// excerpt and render first 10 rows
renderCSV(outArray.slice(0, excerptRows));
showCSV(true);
// show raw data if people really want it
$(".csv textarea").val(csv);
// download link to entire CSV as data
// thanks to https://jsfiddle.net/terryyounghk/KPEGU/
// and https://stackoverflow.com/questions/14964035/how-to-export-javascript-array-info-to-csv-on-client-side
var uri = "data:text/csv;charset=utf-8," + encodeURIComponent(csv);
$(".csv a.download").attr("href", uri);
}
// loads original pasted JSON from textarea, saves to anonymous gist
// rate-limiting means this could easily fail with a 403.
function saveJSON() {
if (!input) return false;
if (input == lastSaved) return false;
// save a permalink to an anonymous gist
var gist = {
description: "test",
public: false,
files: {
"source.json": {
"content": input
}
}
};
// TODO: show spinner/msg while this happens
console.log("Saving to an anonymous gist...");
$.post(
'https://api.github.com/gists',
JSON.stringify(gist)
).done(function(data, status, xhr) {
// take new Gist id, make permalink
setPermalink(data.id);
// send analytics event
Events.permalink();
// mark what we last saved
lastSaved = input;
// update error-reporting link, including permalink
setErrorReporting(data.id, input);
console.log("Remaining this hour: " + xhr.getResponseHeader("X-RateLimit-Remaining"));
}).fail(function(xhr, status, errorThrown) {
console.log(xhr);
// send analytics event
Events.permalink_error(status);
// TODO: gracefully handle rate limit errors
// if (status == 403)
// TODO: show when saving will be available
// e.g. "try again in 5 minutes"
// var reset = xhr.getResponseHeader("X-RateLimit-Reset");
// var date = new Date();
// date.setTime(parseInt(reset) * 1000);
// use http://momentjs.com/ to say "in _ minutes"
});
return false;
}
// Updates the error-reporting link to include current details.
//
// If the passed-in `id` is not null, a permalink is included.
// If the passed-in `id` is null, then no permalink is included.
// (Needed explicitly because the current URL doesn't always refer
// to a permalink related to the current value of the textarea.)
//
// The current body of the textarea will be encoded into the URI,
// to pre-populate the GitHub issue template, but only if the body
// is < 7KB (7,168). GitHub's nginx server rejects query strings
// longer than ~8KB.
//
// If no `id` is given, and content is too long, the URL will
// encode only a title, and no body.
function setErrorReporting(id, content) {
var base = "https://github.com/konklone/json/issues/new";
var title = "Error parsing some specific JSON";
var body = "I'm having an issue converting this JSON:\n\n";
if (id) body += (
window.location.protocol + "//" +
window.location.host + window.location.pathname +
"?id=" + id + "\n\n"
);
if (content.length <= (7 * 1024))
body += ("```json\n" + content + "\n```");
var finalUrl = base + "?title=" + encodeURIComponent(title) +
"&body=" + encodeURIComponent(body);
$(".error a.report").attr("href", finalUrl);
// console.log("Updated error reporting link to:" + finalUrl);
return true;
}
// given a valid gist ID, set the permalink to use it
function setPermalink(id) {
if (history && history.pushState)
history.pushState({id: id}, null, "?id=" + id);
// log("Permalink created! (Copy from the location bar.)")
}
// check query string for gist ID
function loadPermalink() {
var id = getParam("id");
if (!id) return;
$.get('https://api.github.com/gists/' + id,
function(data, status, xhr) {
console.log("Remaining this hour: " + xhr.getResponseHeader("X-RateLimit-Remaining"));
var input = data.files["source.json"].content;
$(".json textarea").val(input);
doJSON();
showJSON(true);
}
).fail(function(xhr, status, errorThrown) {
console.log("Error fetching anonymous gist!");
console.log(xhr);
console.log(status);
console.log(errorThrown);
});
}
$(function() {
$(".json textarea").blur(function() {showJSON(true);});
$(".json pre").click(function() {showJSON(false)});
$(".csv textarea").blur(function() {showCSV(true);})
$(".csv .raw").click(function() {
showCSV(false);
$(".csv textarea").focus().select();
return false;
})
// if there's no CSV to download, don't download anything.
// also, log an analytics event.
$(".csv a.download").click(function() {
var data = $(".csv textarea").val();
if (data) {
Events.download(data.length);
return true;
} else
return false;
});
// Both elements are present on page-load, so use normal click handler.
$(".save a, .error a.save").click(saveJSON);
// transform the JSON whenever it's pasted/edited
$(".json textarea")
.on('paste', function() {
// delay the showing so the paste is pasted by then
setTimeout(function() {
doJSON();
$(".json textarea").blur();
}, 1);
})
.keyup(doJSON); // harmless to repeat doJSON
// go away
$("body").click(function() {
$(".drop").hide();
});
$(document)
.on("dragenter", function(e) {
e.preventDefault();
e.stopPropagation();
$(".drop").show();
})
.on("dragover", function(e) {
e.preventDefault();
e.stopPropagation();
})
.on("dragend", function(e) {
e.preventDefault();
e.stopPropagation();
$(".drop").hide();
})
.on("drop", function(e) {
$(".drop").hide();
if (e.originalEvent.dataTransfer) {
if (e.originalEvent.dataTransfer.files.length) {
e.preventDefault();
e.stopPropagation();
var reader = new FileReader();
reader.onload = function(ev) {
console.log(ev.target.result);
$(".json textarea").val(ev.target.result);
setTimeout(function() {
doJSON();
$(".json textarea").blur();
}, 1);
}
reader.readAsText(e.originalEvent.dataTransfer.files[0]);
}
}
});
// highlight CSV on click
$(".csv textarea").click(function() {$(this).focus().select();});
loadPermalink();
});
</script>
</head>
<body>
<h1>Convert JSON to CSV</h1>
<section class="json">
<p>
<span class="instruction editing">
Paste your JSON below.
</span>
<span class="instruction rendered">
Click your JSON below to edit.
</span>
<span class="save">
<a href="#">Create a permalink</a> any time.
</span>
<span>
Please <a target="_blank" href="https://github.com/konklone/json/issues">report bugs and send feedback</a> on GitHub.
</span>
<span>
Made by <a href="https://twitter.com/konklone">@konklone.</a>
</span>
</p>
<div class="areas">
<textarea class="editing"></textarea>
<pre class="rendered"><code></code></pre>
<div class="drop">DROP JSON HERE</div>
</div>
<div class="warning">
Extremely large files may cause trouble — the conversion is done inside your browser.
</div>
<div class="error">
There was an error parsing this JSON. If you're sure this JSON is valid, please
<a class="report" target="_blank"
href="https://github.com/konklone/json/issues/new">
file an issue</a>.
You can
<a class="save" href="#">create a permalink to the error</a>
any time.
</div>
</section>
<section class="csv">
<p>
<span class="rendered">
Below are the first few rows (<span class="rows count"></span> total).
<a download="result.csv" href="#" class="download">
Download the entire CSV</a>,
or <a href="#" class="raw">show the raw data</a>.
</span>
<span class="editing">
Your JSON will appear below as a table.
</span>
</p>
<div class="areas">
<textarea class="editing" readonly></textarea>
<div class="table rendered">
<table></table>
</div>
</div>
</section>
<footer>
<p>
Thanks to <a href="https://twitter.com/benbalter">@benbalter</a> for help, and to <a href="https://twitter.com/onyxfish">@onyxfish</a> for the amazing <a href="https://csvkit.readthedocs.org/en/latest/scripts/in2csv.html">csvkit</a>.
</p>
</footer>
<script>
(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
})(window,document,'script','https://www.google-analytics.com/analytics.js','ga');
ga('create', 'UA-252618-16', 'konklone.io');
ga('set', 'forceSSL', true);
ga('set', 'anonymizeIp', true);
ga('send', 'pageview');
</script>
</body>
</html>
<强>参考