如何从 eBay api 获取 Json 数据并以 CSV 格式保存？
How to get the Json data from eBay api to save in CSV format?
<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title>eBay Search Results</title>
<style type="text/css">body { font-family: arial,sans-serif;} </style>
<script type="text/javascript" src="http://code.jquery.com/jquery-latest.js"></script>
<script type="text/javascript" src="https://github.com/douglascrockford/JSON-js/raw/master/json2.js"></script>
</head>
<body>
<h1>JSON</h1>
<pre id="results"></pre>
<h1>CSV</h1>
<pre id="csv"></pre>
<script>
//Function that create JSON to CSV format.
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;
}
// Parse the response and build an HTML table to display search results
function _cb_findItemsByKeywords(root) {
var items = root.findItemsByKeywordsResponse[0].searchResult[0].item || [];
for (var i = 0; i < items.length; ++i) {
var item = items[i];
var title = item.title;
var pic = item.galleryURL;
var viewitem = item.viewItemURL;
}
var jsonObject = JSON.stringify(items);
// Display JSON
$('#results').text(jsonObject);
//Convert JSON to CSV & Display CSV
$('#csv').text(ConvertToCSV(jsonObject));
} // End _cb_findItemsByKeywords() function
// Construct the request
// Replace MyAppID with your Production AppID
var url = "http://svcs.ebay.com/services/search/FindingService/v1";
url += "?OPERATION-NAME=findItemsByKeywords";
url += "&SERVICE-VERSION=1.0.0";
url += "&SECURITY-APPNAME=APIID";
url += "&GLOBAL-ID=EBAY-US";
url += "&RESPONSE-DATA-FORMAT=JSON";
url += "&callback=_cb_findItemsByKeywords";
url += "&REST-PAYLOAD";
url += "&keywords=harry%20potter";
url += "&paginationInput.entriesPerPage=3";
// Submit the request
s=document.createElement('script'); // create script element
s.src= url;
document.body.appendChild(s);
</script>
</body>
</html>
当我在上面的代码中 APIID 和 运行 字段中设置我的开发者 API id 时，它会在网页上显示 JSON 和 CSV 格式。但是我无法将网页上显示的这个 csv 数据保存到我的本地硬盘。
我看到了 php 的一些代码，可以创建文件并保存在硬盘上，但我无法使用这段代码使其工作。
我是新手，我在 eBay 上有 300 种产品的大量库存，我需要以 csv 格式下载这些产品，以便我可以将相同的产品提供给其他电子商务网站。
eBay 网站 return JSON 格式的数据也在 XML 中，但我不想使用其他格式检索数据通过查看网络上的其他代码并使其与上面粘贴的 eBay 开发者网站上的示例代码一起使用，在网页上查看 CSV 数据。
我得到的输出是：-
JSON
[{"itemId":["171430021529"],"title":["New Harry Potter Hermione Granger Rotating Time Turner Necklace Gold Hourglass"],"globalId":["EBAY-US"],"primaryCategory":[{"categoryId":["29798"],"categoryName":["Harry Potter"]}],"galleryURL":["http://thumbs2.ebaystatic.com/m/mqajRbE-6CfHvlB64wNF5Ew/140.jpg"],"viewItemURL":["http://www.ebay.com/itm/New-Harry-Potter-Hermione-Granger-Rotating-Time-Turner-Necklace-Gold-Hourglass-/171430021529?pt=LH_DefaultDomain_0"],"paymentMethod":["PayPal"],"autoPay":["true"],"location":["China"],"country":["CN"],"shippingInfo":[{"shippingServiceCost":[{"@currencyId":"USD","__value__":"0.17"}],"shippingType":["Flat"],"shipToLocations":["Worldwide"],"expeditedShipping":["false"],"oneDayShippingAvailable":["false"],"handlingTime":["3"]}],"sellingStatus":[{"currentPrice":[{"@currencyId":"USD","__value__":"1.48"}],"convertedCurrentPrice":[{"@currencyId":"USD","__value__":"1.48"}],"sellingState":["Active"],"timeLeft":["P2DT0H54M52S"]}],"listingInfo":[{"bestOfferEnabled":["false"],"buyItNowAvailable":["false"],"startTime":["2014-08-22T04:09:56.000Z"],"endTime":["2015-05-19T04:14:56.000Z"],"listingType":["FixedPrice"],"gift":["false"]}],"returnsAccepted":["true"],"galleryPlusPictureURL":["http://galleryplus.ebayimg.com/ws/web/171430021529_1_0_1.jpg"],"condition":[{"conditionId":["1000"],"conditionDisplayName":["New"]}],"isMultiVariationListing":["false"],"topRatedListing":["false"]},{"itemId":["221770537517"],"title":["Harry Potter Hogwarts Crest Logo and Motto Golden School Badge Charms Necklace"],"globalId":["EBAY-US"],"primaryCategory":[{"categoryId":["155101"],"categoryName":["Necklaces & Pendants"]}],"galleryURL":["http://thumbs2.ebaystatic.com/m/mMm2s0grYJYAnjAVz8pa-Ug/140.jpg"],"viewItemURL":["http://www.ebay.com/itm/Harry-Potter-Hogwarts-Crest-Logo-and-Motto-Golden-School-Badge-Charms-Necklace-/221770537517?pt=LH_DefaultDomain_0"],"paymentMethod":["PayPal"],"autoPay":["false"],"location":["China"],"country":["CN"],"shippingInfo":[{"shippingServiceCost":[{"@currencyId":"USD","__value__":"0.0"}],"shippingType":["Free"],"shipToLocations":["Worldwide"],"expeditedShipping":["false"],"oneDayShippingAvailable":["false"],"handlingTime":["1"]}],"sellingStatus":[{"currentPrice":[{"@currencyId":"USD","__value__":"0.92"}],"convertedCurrentPrice":[{"@currencyId":"USD","__value__":"0.92"}],"bidCount":["6"],"sellingState":["Active"],"timeLeft":["P0DT0H2M16S"]}],"listingInfo":[{"bestOfferEnabled":["false"],"buyItNowAvailable":["false"],"startTime":["2015-05-12T03:22:20.000Z"],"endTime":["2015-05-17T03:22:20.000Z"],"listingType":["Auction"],"gift":["false"]}],"returnsAccepted":["true"],"condition":[{"conditionId":["1500"],"conditionDisplayName":["New without tags"]}],"isMultiVariationListing":["false"],"topRatedListing":["false"]},{"itemId":["111668667939"],"title":["Hot Movie Harry Potter Horcruxes Alloy Crystal Ring 8# Crown Vintage Jewelry"],"globalId":["EBAY-US"],"primaryCategory":[{"categoryId":["29798"],"categoryName":["Harry Potter"]}],"galleryURL":["http://thumbs4.ebaystatic.com/m/mj3SFZMMPyUvnkja_iiTikg/140.jpg"],"viewItemURL":["http://www.ebay.com/itm/Hot-Movie-Harry-Potter-Horcruxes-Alloy-Crystal-Ring-8-Crown-Vintage-Jewelry-/111668667939?pt=LH_DefaultDomain_0"],"paymentMethod":["PayPal"],"autoPay":["false"],"location":["China"],"country":["CN"],"shippingInfo":[{"shippingServiceCost":[{"@currencyId":"USD","__value__":"0.0"}],"shippingType":["Free"],"shipToLocations":["Worldwide"],"expeditedShipping":["false"],"oneDayShippingAvailable":["false"],"handlingTime":["1"]}],"sellingStatus":[{"currentPrice":[{"@currencyId":"USD","__value__":"1.25"}],"convertedCurrentPrice":[{"@currencyId":"USD","__value__":"1.25"}],"bidCount":["7"],"sellingState":["Active"],"timeLeft":["P0DT0H4M24S"]}],"listingInfo":[{"bestOfferEnabled":["false"],"buyItNowAvailable":["false"],"startTime":["2015-05-12T03:24:28.000Z"],"endTime":["2015-05-17T03:24:28.000Z"],"listingType":["Auction"],"gift":["false"]}],"returnsAccepted":["true"],"galleryPlusPictureURL":["http://galleryplus.ebayimg.com/ws/web/111668667939_1_0_1.jpg"],"condition":[{"conditionId":["1000"],"conditionDisplayName":["New"]}],"isMultiVariationListing":["false"],"topRatedListing":["false"]}]
CSV
171430021529,New Harry Potter Hermione Granger Rotating Time Turner Necklace Gold Hourglass,EBAY-US,[object Object],http://thumbs2.ebaystatic.com/m/mqajRbE-6CfHvlB64wNF5Ew/140.jpg,http://www.ebay.com/itm/New-Harry-Potter-Hermione-Granger-Rotating-Time-Turner-Necklace-Gold-Hourglass-/171430021529?pt=LH_DefaultDomain_0,PayPal,true,China,CN,[object Object],[object Object],[object Object],true,http://galleryplus.ebayimg.com/ws/web/171430021529_1_0_1.jpg,[object Object],false,false
221770537517,Harry Potter Hogwarts Crest Logo and Motto Golden School Badge Charms Necklace,EBAY-US,[object Object],http://thumbs2.ebaystatic.com/m/mMm2s0grYJYAnjAVz8pa-Ug/140.jpg,http://www.ebay.com/itm/Harry-Potter-Hogwarts-Crest-Logo-and-Motto-Golden-School-Badge-Charms-Necklace-/221770537517?pt=LH_DefaultDomain_0,PayPal,false,China,CN,[object Object],[object Object],[object Object],true,[object Object],false,false
111668667939,Hot Movie Harry Potter Horcruxes Alloy Crystal Ring 8# Crown Vintage Jewelry,EBAY-US,[object Object],http://thumbs4.ebaystatic.com/m/mj3SFZMMPyUvnkja_iiTikg/140.jpg,http://www.ebay.com/itm/Hot-Movie-Harry-Potter-Horcruxes-Alloy-Crystal-Ring-8-Crown-Vintage-Jewelry-/111668667939?pt=LH_DefaultDomain_0,PayPal,false,China,CN,[object Object],[object Object],[object Object],true,http://galleryplus.ebayimg.com/ws/web/111668667939_1_0_1.jpg,[object Object],false,false
您的 gson 数组由列表中每个项目几乎相同的 gson 结构组成，没有简单的方法来处理它，只能编写一个长函数来处理 json 数组中的每个项目。首先添加 header，然后为 header、
中的每个项目添加一行数据
看看这段代码是否适合你，我在 json 数组中的项目上测试了它并且它有效，
//Function that create JSON to CSV format.
function ConvertToCSV(objArray) {
var array = typeof objArray != 'object' ? JSON.parse(objArray) : objArray;
var str = "";
var header = "";
header += "itemId,"
header += "title,"
header += "globalId,"
header += "primaryCategory.categoryId,"
header += "primaryCategory.categoryName,"
header += "galleryURL,"
header += "viewItemURL,"
header += "paymentMethod,"
header += "autoPay,"
header += "location,"
header += "country,"
header += "shippingInfo.shippingServiceCost.currencyId,"
header += "shippingInfo.shippingServiceCost.value,"
header += "shippingInfo.shippingType,"
header += "shippingInfo.shipToLocations,"
header += "shippingInfo.expeditedShipping,"
header += "shippingInfo.oneDayShippingAvailable,"
header += "shippingInfo.handlingTime,"
header += "sellingStatus.currentPrice.currencyId,"
header += "sellingStatus.currentPrice.value,"
header += "sellingStatus.convertedCurrentPrice.currencyId,"
header += "sellingStatus.convertedCurrentPrice.value,"
header += "sellingStatus.bidCount,"
header += "sellingStatus.sellingState,"
header += "sellingStatus.timeLeft,"
header += "listingInfo.bestOfferEnabled,"
header += "listingInfo.buyItNowAvailable,"
header += "listingInfo.startTime,"
header += "listingInfo.endTime,"
header += "listingInfo.listingType,"
header += "listingInfo.gift,"
header += "returnsAccepted,"
header += "galleryPlusPictureURL,"
header += "condition.conditionId,"
header += "condition.conditionDisplayName,"
header += "isMultiVariationListing,"
header += "topRatedListing";
header += "\r\n";
str += line;
for (var i = 0; i < array.length; i++) {
var line = "";
var JsonObj = array[i];
line += JsonObj["itemId"]+",";
line += JsonObj["title"]+",";
line += JsonObj["globalId"]+",";
var primaryCategory = JsonObj["primaryCategory"];
line += primaryCategory[0]["categoryId"]+",";
line += primaryCategory[0]["categoryName"]+",";
line += JsonObj["galleryURL"]+",";
line += JsonObj["viewItemURL"]+",";
line += JsonObj["paymentMethod"]+",";
line += JsonObj["autoPay"]+",";
line += JsonObj["location"]+",";
line += JsonObj["country"]+",";
var shippingInfo = JsonObj["shippingInfo"];
var shippingServiceCost = shippingInfo[0]["shippingServiceCost"];
line += shippingServiceCost[0]["@currencyId"]+",";
line += shippingServiceCost[0]["value"]+",";
line += shippingInfo[0]["shippingType"]+",";
line += shippingInfo[0]["shipToLocations"]+",";
line += shippingInfo[0]["expeditedShipping"]+",";
line += shippingInfo[0]["oneDayShippingAvailable"]+",";
line += shippingInfo[0]["handlingTime"]+",";
var sellingStatus = JsonObj["sellingStatus"];
var currentPrice = sellingStatus[0]["currentPrice"];
var convertedCurrentPrice = sellingStatus[0]["convertedCurrentPrice"];
line += currentPrice[0]["@currencyId"]+",";
line += currentPrice[0]["value"]+",";
line += convertedCurrentPrice[0]["@currencyId"]+",";
line += convertedCurrentPrice[0]["value"]+",";
line += sellingStatus[0]["bidCount"]+",";
line += sellingStatus[0]["sellingState"]+",";
line += sellingStatus[0]["timeLeft"]+",";
var listingInfo = JsonObj["listingInfo"];
line += listingInfo[0]["bestOfferEnabled"]+",";
line += listingInfo[0]["buyItNowAvailable"]+",";
line += listingInfo[0]["startTime"]+",";
line += listingInfo[0]["endTime"]+",";
line += listingInfo[0]["listingType"]+",";
line += listingInfo[0]["gift"]+",";
line += JsonObj["returnsAccepted"]+",";
line += JsonObj["galleryPlusPictureURL"]+",";
var condition = JsonObj["condition"];
line += condition[0]["conditionId"]+",";
line += condition[0]["conditionDisplayName"]+",";
line += JsonObj["isMultiVariationListing"]+",";
line += JsonObj["topRatedListing"];
line += '\r\n';
str += line;
}
return str;
<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title>eBay Search Results</title>
<style type="text/css">body { font-family: arial,sans-serif;} </style>
<script type="text/javascript" src="http://code.jquery.com/jquery-latest.js"></script>
<script type="text/javascript" src="https://github.com/douglascrockford/JSON-js/raw/master/json2.js"></script>
</head>
<body>
<h1>JSON</h1>
<pre id="results"></pre>
<h1>CSV</h1>
<pre id="csv"></pre>
<script>
//Function that create JSON to CSV format.
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;
}
// Parse the response and build an HTML table to display search results
function _cb_findItemsByKeywords(root) {
var items = root.findItemsByKeywordsResponse[0].searchResult[0].item || [];
for (var i = 0; i < items.length; ++i) {
var item = items[i];
var title = item.title;
var pic = item.galleryURL;
var viewitem = item.viewItemURL;
}
var jsonObject = JSON.stringify(items);
// Display JSON
$('#results').text(jsonObject);
//Convert JSON to CSV & Display CSV
$('#csv').text(ConvertToCSV(jsonObject));
} // End _cb_findItemsByKeywords() function
// Construct the request
// Replace MyAppID with your Production AppID
var url = "http://svcs.ebay.com/services/search/FindingService/v1";
url += "?OPERATION-NAME=findItemsByKeywords";
url += "&SERVICE-VERSION=1.0.0";
url += "&SECURITY-APPNAME=APIID";
url += "&GLOBAL-ID=EBAY-US";
url += "&RESPONSE-DATA-FORMAT=JSON";
url += "&callback=_cb_findItemsByKeywords";
url += "&REST-PAYLOAD";
url += "&keywords=harry%20potter";
url += "&paginationInput.entriesPerPage=3";
// Submit the request
s=document.createElement('script'); // create script element
s.src= url;
document.body.appendChild(s);
</script>
</body>
</html>
当我在上面的代码中 APIID 和 运行 字段中设置我的开发者 API id 时，它会在网页上显示 JSON 和 CSV 格式。但是我无法将网页上显示的这个 csv 数据保存到我的本地硬盘。
我看到了 php 的一些代码，可以创建文件并保存在硬盘上，但我无法使用这段代码使其工作。
我是新手，我在 eBay 上有 300 种产品的大量库存，我需要以 csv 格式下载这些产品，以便我可以将相同的产品提供给其他电子商务网站。
eBay 网站 return JSON 格式的数据也在 XML 中，但我不想使用其他格式检索数据通过查看网络上的其他代码并使其与上面粘贴的 eBay 开发者网站上的示例代码一起使用，在网页上查看 CSV 数据。
我得到的输出是：-
JSON
[{"itemId":["171430021529"],"title":["New Harry Potter Hermione Granger Rotating Time Turner Necklace Gold Hourglass"],"globalId":["EBAY-US"],"primaryCategory":[{"categoryId":["29798"],"categoryName":["Harry Potter"]}],"galleryURL":["http://thumbs2.ebaystatic.com/m/mqajRbE-6CfHvlB64wNF5Ew/140.jpg"],"viewItemURL":["http://www.ebay.com/itm/New-Harry-Potter-Hermione-Granger-Rotating-Time-Turner-Necklace-Gold-Hourglass-/171430021529?pt=LH_DefaultDomain_0"],"paymentMethod":["PayPal"],"autoPay":["true"],"location":["China"],"country":["CN"],"shippingInfo":[{"shippingServiceCost":[{"@currencyId":"USD","__value__":"0.17"}],"shippingType":["Flat"],"shipToLocations":["Worldwide"],"expeditedShipping":["false"],"oneDayShippingAvailable":["false"],"handlingTime":["3"]}],"sellingStatus":[{"currentPrice":[{"@currencyId":"USD","__value__":"1.48"}],"convertedCurrentPrice":[{"@currencyId":"USD","__value__":"1.48"}],"sellingState":["Active"],"timeLeft":["P2DT0H54M52S"]}],"listingInfo":[{"bestOfferEnabled":["false"],"buyItNowAvailable":["false"],"startTime":["2014-08-22T04:09:56.000Z"],"endTime":["2015-05-19T04:14:56.000Z"],"listingType":["FixedPrice"],"gift":["false"]}],"returnsAccepted":["true"],"galleryPlusPictureURL":["http://galleryplus.ebayimg.com/ws/web/171430021529_1_0_1.jpg"],"condition":[{"conditionId":["1000"],"conditionDisplayName":["New"]}],"isMultiVariationListing":["false"],"topRatedListing":["false"]},{"itemId":["221770537517"],"title":["Harry Potter Hogwarts Crest Logo and Motto Golden School Badge Charms Necklace"],"globalId":["EBAY-US"],"primaryCategory":[{"categoryId":["155101"],"categoryName":["Necklaces & Pendants"]}],"galleryURL":["http://thumbs2.ebaystatic.com/m/mMm2s0grYJYAnjAVz8pa-Ug/140.jpg"],"viewItemURL":["http://www.ebay.com/itm/Harry-Potter-Hogwarts-Crest-Logo-and-Motto-Golden-School-Badge-Charms-Necklace-/221770537517?pt=LH_DefaultDomain_0"],"paymentMethod":["PayPal"],"autoPay":["false"],"location":["China"],"country":["CN"],"shippingInfo":[{"shippingServiceCost":[{"@currencyId":"USD","__value__":"0.0"}],"shippingType":["Free"],"shipToLocations":["Worldwide"],"expeditedShipping":["false"],"oneDayShippingAvailable":["false"],"handlingTime":["1"]}],"sellingStatus":[{"currentPrice":[{"@currencyId":"USD","__value__":"0.92"}],"convertedCurrentPrice":[{"@currencyId":"USD","__value__":"0.92"}],"bidCount":["6"],"sellingState":["Active"],"timeLeft":["P0DT0H2M16S"]}],"listingInfo":[{"bestOfferEnabled":["false"],"buyItNowAvailable":["false"],"startTime":["2015-05-12T03:22:20.000Z"],"endTime":["2015-05-17T03:22:20.000Z"],"listingType":["Auction"],"gift":["false"]}],"returnsAccepted":["true"],"condition":[{"conditionId":["1500"],"conditionDisplayName":["New without tags"]}],"isMultiVariationListing":["false"],"topRatedListing":["false"]},{"itemId":["111668667939"],"title":["Hot Movie Harry Potter Horcruxes Alloy Crystal Ring 8# Crown Vintage Jewelry"],"globalId":["EBAY-US"],"primaryCategory":[{"categoryId":["29798"],"categoryName":["Harry Potter"]}],"galleryURL":["http://thumbs4.ebaystatic.com/m/mj3SFZMMPyUvnkja_iiTikg/140.jpg"],"viewItemURL":["http://www.ebay.com/itm/Hot-Movie-Harry-Potter-Horcruxes-Alloy-Crystal-Ring-8-Crown-Vintage-Jewelry-/111668667939?pt=LH_DefaultDomain_0"],"paymentMethod":["PayPal"],"autoPay":["false"],"location":["China"],"country":["CN"],"shippingInfo":[{"shippingServiceCost":[{"@currencyId":"USD","__value__":"0.0"}],"shippingType":["Free"],"shipToLocations":["Worldwide"],"expeditedShipping":["false"],"oneDayShippingAvailable":["false"],"handlingTime":["1"]}],"sellingStatus":[{"currentPrice":[{"@currencyId":"USD","__value__":"1.25"}],"convertedCurrentPrice":[{"@currencyId":"USD","__value__":"1.25"}],"bidCount":["7"],"sellingState":["Active"],"timeLeft":["P0DT0H4M24S"]}],"listingInfo":[{"bestOfferEnabled":["false"],"buyItNowAvailable":["false"],"startTime":["2015-05-12T03:24:28.000Z"],"endTime":["2015-05-17T03:24:28.000Z"],"listingType":["Auction"],"gift":["false"]}],"returnsAccepted":["true"],"galleryPlusPictureURL":["http://galleryplus.ebayimg.com/ws/web/111668667939_1_0_1.jpg"],"condition":[{"conditionId":["1000"],"conditionDisplayName":["New"]}],"isMultiVariationListing":["false"],"topRatedListing":["false"]}]
CSV
171430021529,New Harry Potter Hermione Granger Rotating Time Turner Necklace Gold Hourglass,EBAY-US,[object Object],http://thumbs2.ebaystatic.com/m/mqajRbE-6CfHvlB64wNF5Ew/140.jpg,http://www.ebay.com/itm/New-Harry-Potter-Hermione-Granger-Rotating-Time-Turner-Necklace-Gold-Hourglass-/171430021529?pt=LH_DefaultDomain_0,PayPal,true,China,CN,[object Object],[object Object],[object Object],true,http://galleryplus.ebayimg.com/ws/web/171430021529_1_0_1.jpg,[object Object],false,false
221770537517,Harry Potter Hogwarts Crest Logo and Motto Golden School Badge Charms Necklace,EBAY-US,[object Object],http://thumbs2.ebaystatic.com/m/mMm2s0grYJYAnjAVz8pa-Ug/140.jpg,http://www.ebay.com/itm/Harry-Potter-Hogwarts-Crest-Logo-and-Motto-Golden-School-Badge-Charms-Necklace-/221770537517?pt=LH_DefaultDomain_0,PayPal,false,China,CN,[object Object],[object Object],[object Object],true,[object Object],false,false
111668667939,Hot Movie Harry Potter Horcruxes Alloy Crystal Ring 8# Crown Vintage Jewelry,EBAY-US,[object Object],http://thumbs4.ebaystatic.com/m/mj3SFZMMPyUvnkja_iiTikg/140.jpg,http://www.ebay.com/itm/Hot-Movie-Harry-Potter-Horcruxes-Alloy-Crystal-Ring-8-Crown-Vintage-Jewelry-/111668667939?pt=LH_DefaultDomain_0,PayPal,false,China,CN,[object Object],[object Object],[object Object],true,http://galleryplus.ebayimg.com/ws/web/111668667939_1_0_1.jpg,[object Object],false,false
您的 gson 数组由列表中每个项目几乎相同的 gson 结构组成，没有简单的方法来处理它，只能编写一个长函数来处理 json 数组中的每个项目。首先添加 header，然后为 header、
中的每个项目添加一行数据看看这段代码是否适合你，我在 json 数组中的项目上测试了它并且它有效，
//Function that create JSON to CSV format.
function ConvertToCSV(objArray) {
var array = typeof objArray != 'object' ? JSON.parse(objArray) : objArray;
var str = "";
var header = "";
header += "itemId,"
header += "title,"
header += "globalId,"
header += "primaryCategory.categoryId,"
header += "primaryCategory.categoryName,"
header += "galleryURL,"
header += "viewItemURL,"
header += "paymentMethod,"
header += "autoPay,"
header += "location,"
header += "country,"
header += "shippingInfo.shippingServiceCost.currencyId,"
header += "shippingInfo.shippingServiceCost.value,"
header += "shippingInfo.shippingType,"
header += "shippingInfo.shipToLocations,"
header += "shippingInfo.expeditedShipping,"
header += "shippingInfo.oneDayShippingAvailable,"
header += "shippingInfo.handlingTime,"
header += "sellingStatus.currentPrice.currencyId,"
header += "sellingStatus.currentPrice.value,"
header += "sellingStatus.convertedCurrentPrice.currencyId,"
header += "sellingStatus.convertedCurrentPrice.value,"
header += "sellingStatus.bidCount,"
header += "sellingStatus.sellingState,"
header += "sellingStatus.timeLeft,"
header += "listingInfo.bestOfferEnabled,"
header += "listingInfo.buyItNowAvailable,"
header += "listingInfo.startTime,"
header += "listingInfo.endTime,"
header += "listingInfo.listingType,"
header += "listingInfo.gift,"
header += "returnsAccepted,"
header += "galleryPlusPictureURL,"
header += "condition.conditionId,"
header += "condition.conditionDisplayName,"
header += "isMultiVariationListing,"
header += "topRatedListing";
header += "\r\n";
str += line;
for (var i = 0; i < array.length; i++) {
var line = "";
var JsonObj = array[i];
line += JsonObj["itemId"]+",";
line += JsonObj["title"]+",";
line += JsonObj["globalId"]+",";
var primaryCategory = JsonObj["primaryCategory"];
line += primaryCategory[0]["categoryId"]+",";
line += primaryCategory[0]["categoryName"]+",";
line += JsonObj["galleryURL"]+",";
line += JsonObj["viewItemURL"]+",";
line += JsonObj["paymentMethod"]+",";
line += JsonObj["autoPay"]+",";
line += JsonObj["location"]+",";
line += JsonObj["country"]+",";
var shippingInfo = JsonObj["shippingInfo"];
var shippingServiceCost = shippingInfo[0]["shippingServiceCost"];
line += shippingServiceCost[0]["@currencyId"]+",";
line += shippingServiceCost[0]["value"]+",";
line += shippingInfo[0]["shippingType"]+",";
line += shippingInfo[0]["shipToLocations"]+",";
line += shippingInfo[0]["expeditedShipping"]+",";
line += shippingInfo[0]["oneDayShippingAvailable"]+",";
line += shippingInfo[0]["handlingTime"]+",";
var sellingStatus = JsonObj["sellingStatus"];
var currentPrice = sellingStatus[0]["currentPrice"];
var convertedCurrentPrice = sellingStatus[0]["convertedCurrentPrice"];
line += currentPrice[0]["@currencyId"]+",";
line += currentPrice[0]["value"]+",";
line += convertedCurrentPrice[0]["@currencyId"]+",";
line += convertedCurrentPrice[0]["value"]+",";
line += sellingStatus[0]["bidCount"]+",";
line += sellingStatus[0]["sellingState"]+",";
line += sellingStatus[0]["timeLeft"]+",";
var listingInfo = JsonObj["listingInfo"];
line += listingInfo[0]["bestOfferEnabled"]+",";
line += listingInfo[0]["buyItNowAvailable"]+",";
line += listingInfo[0]["startTime"]+",";
line += listingInfo[0]["endTime"]+",";
line += listingInfo[0]["listingType"]+",";
line += listingInfo[0]["gift"]+",";
line += JsonObj["returnsAccepted"]+",";
line += JsonObj["galleryPlusPictureURL"]+",";
var condition = JsonObj["condition"];
line += condition[0]["conditionId"]+",";
line += condition[0]["conditionDisplayName"]+",";
line += JsonObj["isMultiVariationListing"]+",";
line += JsonObj["topRatedListing"];
line += '\r\n';
str += line;
}
return str;