我有一个像这样的JSON文件，
JSON文件
{
"reviewerID": "A7S2B0I67WNWB",
"asin": "0594481813",
"reviewerName": "AllyMG",
"helpful": [2, 2],
"reviewText": "This item is just as was described in the original description, works without any issues to be seen. Good product",
"overall": 4.0,
"summary": "As expected",
"unixReviewTime": 1397606400,
"reviewTime": "04 16, 2014"
}
{
"reviewerID": "A3HICVLF4PFFMN",
"asin": "0594481813",
"reviewerName": "Amazon Customer",
"helpful": [0, 0],
"reviewText": "bought for a spare for my 9" Nook HD and it fit perfectly. Very satisfied with the price much less than on the BN site",
"overall": 5.0,
"summary": "great fit",
"unixReviewTime": 1399248000,
"reviewTime": "05 5, 2014"
}
{
"reviewerID": "ANSKSPEEAKY7S",
"asin": "0594481813",
"reviewerName": "Gena",
"helpful": [1, 1],
"reviewText": "My son crewed my HD charger cord so I needed another one, this is exactly like the one my son destroyed.",
"overall": 5.0,
"summary": "Works Great",
"unixReviewTime": 1372032000,
"reviewTime": "06 24, 2013"
}
我想打印reviewText所有三个值。
我有这样的Java代码，
Java代码：
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonParser;
import com.google.gson.stream.JsonReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
public class ReviewText {
public static void main(String[] args) throws FileNotFoundException {
JsonParser parser = new JsonParser();
JsonReader jsonReader = new JsonReader(new FileReader("sample.json"));
JsonElement jsonTree = parser.parse(jsonReader);
JsonObject jsonObject = jsonTree.getAsJsonObject();
JsonElement f1 = jsonObject.get("reviewText");
System.out.println(f1);
}
}
但是我的代码仅输出第一项的输出。我如何打印reviewText所有三个值？
我的JSON文件格式正确吗？
使用aJsonStreamParser处理文件中的多个顶级元素。
JsonStreamParser parser = new JsonStreamParser(new FileReader("sample.json"));
while (parser.hasNext()) {
JsonElement object = parser.next();
System.out.println(object.getAsJsonObject().get("reviewText"));
}
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