I'm new to this, and I want to read JSON file imported with rest api and parse it with spring boot. I worked with CSV file with his method :
@RequestMapping(value = "/import", method = RequestMethod.POST)
public String handleFileUpload(@RequestParam("file") MultipartFile multipartFile) throws IOException {
String name = multipartFile.getOriginalFilename();
System.out.println("File name: "+name);
byte[] bytes = multipartFile.getBytes();
System.out.println("File uploaded content:\n" + new String(bytes));
return "file uploaded";
}
Now i want to parse a JSON File :
[
{
"name":"John",
"city":"Berlin",
"cars":[
"audi",
"bmw"
],
"job":"Teacher"
},
{
"name":"Mark",
"city":"Oslo",
"cars":[
"VW",
"Toyata"
],
"job":"Doctor"
}
]
I have try it to parse this file with java and it works for me but I dont know how to get it with rest api
This method to parse te file JSON and it works
public static void main(String[] args) throws FileNotFoundException,
IOException, ParseException {
JSONParser parser = new JSONParser();
JSONArray jsonArray = (JSONArray) parser.parse(new FileReader(
"D:/PFE 2018/testjsonfile.json"));
for (Object o : jsonArray) {
JSONObject person = (JSONObject) o;
String strName = (String) person.get("name");
System.out.println("Name::::" + strName);
String strCity = (String) person.get("city");
System.out.println("City::::" + strCity);
JSONArray arrays = (JSONArray) person.get("cars");
for (Object object : arrays) {
System.out.println("cars::::" + object);
}
String strJob = (String) person.get("job");
System.out.println("Job::::" + strJob);
System.out.println();
}
}
now how to reuse this methode with rest api
It depends what you want to do with your JSON (it's not entirely clear in your question). In general, good practice with Spring Boot is to use Jackson either:
binding your JSON with a POJO if you expect your JSON to have a known format or
mapping your JSON in a tree.
Examples for the described behaviours can be found in this article for instance.
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.