大家好我跟着this一个人 从URL解析JSON但在解析时我在一个地方进行了攻击.. 如
现在我没有得到图片请帮助。图片,细节,提供那些没有得到.. 他们在jsonarray(jsonobject(jsonarray(jsonobject)))请帮助
我在下面的数组中有一个图像
{
"returnCode": "success",
"Data": {
"results": [
{
"moredetails": [
{
"newoffers": [
],
"recentoffers_count": 0,
"sku": "30072246"
},
{
"newoffers": [
{
"availability": "Available",
"currency": "USD"
}
]
},
{
"newoffers": [
{
"availability": "Available",
"currency": "USD"
}
],
"offers_count": 1,
"name": "google.com"
}
],
..."features": {
..
},
"length": "20",
"geo": [
"usa"
],
.."images": [
"http://google.com.one.jpg"
],
..
}
],
...
}
}
现在我想要解析一些内容,比如图像,jsonarray(jsonarray)里面的newoffers,我的意思是它们就像[{[{和[{[json数组里面的json数组我试过但我收到错误
JSONArray json_results = json_results.getJSONArray("images");
这是我的代码..
try {
JSONObject json_data = JSONfunctions.getJSONfromURL(url);
JSONObject json_SemanticS3ProductData = json_data.getJSONObject("Data");
JSONArray json_results = json_SemanticS3ProductData.getJSONArray("results");
for (int i = 0; i < json_SemanticS3ProductData.length(); i++) {
HashMap<String, String> map = new HashMap<String, String>();
JSONObject c = json_results.getJSONObject(i);
map.put("model", c.optString("model"));
JSONObject f = c.getJSONObject("features");
map.put("Rear-facing Camera", f.optString("Rear-facing Camera"));
JSONArray json_results_images = json_results.getJSONArray("images");
arraylist.add(map);
JSONArray json_sitedetails =json_results.getJSONArray("details");
for (int j = 0; j < json_sitedetails.length(); j++) {
HashMap<String, String> map1 = new HashMap<String, String>();
JSONObject sd = json_sitedetails.getJSONObject(j);
JSONArray json_latestoffers = json_sitedetails.getJSONArray("offers");
for (int k = 0; k < json_sitedetails.length(); k++) {
HashMap<String, String> map2 = new HashMap<String, String>();
JSONObject e = json_latestoffers.getJSONObject(k);
map1.put("currency", e.optString("currency"));
arraylist.add(map1);
}
}
}
}
重新拍摄一切都很好。但我无法解析图像,细节和优惠..请帮忙。 那三个都在jsonarray里面(jsonObject(Jsonarray(jsonobject)))这就是事情.. 请帮忙..
答案 0 :(得分:0)
我创建了一个不完整的代码段。根据您给出的示例,它至少可以访问第一个new_offers,sku等。但这是不完整的,因为如果字段不存在它将失败。无论如何,代码片段的目的只是向您展示如何从嵌套的JSONObject和JSONArray中检索值
JSONObject root = new JSONObject(sample);
String returnCode = root.getString("returnCode");
Log.d(TAG, "returnCode:" + returnCode);
JSONObject data = root.getJSONObject("Data");
JSONArray results = data.getJSONArray("results");
int resultsSize = results.length();
for (int i = 0; i < resultsSize; i++) {
JSONObject result = results.getJSONObject(i);
JSONArray moreDetails = result.getJSONArray("moredetails");
for (int i2 = 0; i2 < moreDetails.length(); i2++) {
JSONObject detail = moreDetails.getJSONObject(i2);
JSONArray newOffers = detail.getJSONArray("newoffers");
int recentOffersCount = detail.getInt("recentoffers_count");
String sku = detail.getString("sku");
Log.d(TAG, "recentOffersCount:"+recentOffersCount);
Log.d(TAG, "sku:"+sku);
// Will fail on the 2nd moreDetail because the field is incomplete. be sure to handle it.
}
JSONObject features = result.getJSONObject("features");
int length = result.getInt("length");
JSONArray geo = result.getJSONArray("geo");
JSONArray images = result.getJSONArray("images");
for(int i2 = 0; i2 < images.length();i2++) {
String image = images.getString(i2);
Log.d(TAG, "image:"+image);
}
}