解析JSON文件(JAVA)
解析JSON文件(JAVA)
提问于 2019-01-15 22:57:30
我想创建一个包含JSONFile中所有信息的JSONObject。
我在网上寻找，只发现如何在这个对象中添加一个人。我想知道是否有任何方法可以添加所有的人与他们的属性在一个单一的JSONObject。
public class JsonSingleton extends AbstractSingleton {
final String personnesJsonPathFile = "personnesJson.json";
private JsonSingleton() {
}
public Personne createPersonneWithFileObject( JSONObject jsonObjectPerson ) {
int idPersonne = Integer.parseInt( ( String ) jsonObjectPerson.get( "id" ) );
String prenom = ( String ) jsonObjectPerson.get( "prenom" );
String nom = ( String ) jsonObjectPerson.get("nom");
Double poids = Double.parseDouble( ( String ) jsonObjectPerson.get( "poids" ) );
Double taille = Double.parseDouble( ( String ) jsonObjectPerson.get( "taille" ) );
String rue = ( String ) jsonObjectPerson.get( "rue" );
String ville = ( String ) jsonObjectPerson.get( "ville" );
String codePostal = ( String ) jsonObjectPerson.get( "codePostal" );
return new Personne( idPersonne, prenom, nom, poids, taille, rue, ville, codePostal );
}
@Override
protected void extractPersonnesDatas() {
JSONParser parser = new JSONParser();
try {
Object obj = parser.parse( new FileReader ( personnesJsonPathFile ) );
} catch (IOException | ParseException e) {
e.printStackTrace();
}
}
}以下是Json数据：
{"personnes":[{"id":1,"prenom":"Martin","nom":"Marshall","poids":60,"taille":150,"rue":"rue de Nantes","ville":"Laval","codePostal":"53000"},
{"id":2,"prenom":"Claire","nom":"Chazal","poids":65,"taille":155,"rue":"rue de Rennes","ville":"Laval","codePostal":"53000"},
{"id":3,"prenom":"Jacques","nom":"Dupont","poids":90,"taille":180,"rue":"rue des Anges","ville":"Paris","codePostal":"75000"},
{"id":4,"prenom":"Celine","nom":"Dia","poids":66,"taille":166,"rue":"rue Diderot","ville":"Paris","codePostal":"75000"},
{"id":5,"prenom":"Remy","nom":"Cheval","poids":88,"taille":200,"rue":"rue du paradis","ville":"Nantes","codePostal":"44000"},
{"id":6,"prenom":"Nicolas","nom":"Dutrou","poids":40,"taille":150,"rue":"rue Appert","ville":"Nantes","codePostal":"44000"},
{"id":7,"prenom":"Marie","nom":"Claire","poids":92,"taille":188,"rue":"rue du paradis","ville":"Rouen","codePostal":"76000"},
{"id":8,"prenom":"Nathalie","nom":"Sage","poids":75,"taille":175,"rue":"rue Appert","ville":"Rouen","codePostal":"76000"},
{"id":9,"prenom":"Jean","nom":"Dujardin","poids":56,"taille":166,"rue":"rue des sorciers","ville":"Havre","codePostal":"76800"},
{"id":10,"prenom":"Michel","nom":"Leclerc","poids":100,"taille":202,"rue":"rue du bonneur","ville":"Havre","codePostal":"76800"},
{"id":11,"prenom":"Julien","nom":"Marshall","poids":65,"taille":144,"rue":"rue de Nantes","ville":"Laval","codePostal":"53000"},
{"id":12,"prenom":"Julien","nom":"Claire","poids":85,"taille":169,"rue":"rue du Paradis","ville":"Paris","codePostal":"75000"},
{"id":13,"prenom":"Jacques","nom":"Dupont","poids":87,"taille":172,"rue":"rue des Passeurs","ville":"Paris","codePostal":"75000"},
{"id":14,"prenom":"Charles","nom":"Hallyday","poids":69,"taille":133,"rue":"rue des Feugrais","ville":"Rouen","codePostal":"76000"},
{"id":15,"prenom":"Serge","nom":"Lama","poids":78,"taille":174,"rue":"rue des Heureux","ville":"Nantes","codePostal":"44000"},
{"id":16,"prenom":"Vincent","nom":"Thomas","poids":35,"taille":169,"rue":"rue de Paris","ville":"Rennes","codePostal":"35000"},
{"id":17,"prenom":"Eric","nom":"Dummat","poids":56,"taille":155,"rue":"rue de Versaille","ville":"Paris","codePostal":"75000"},
{"id":18,"prenom":"Nicolas","nom":"Samuel","poids":49,"taille":171,"rue":"rue de Saint Louis","ville":"Laval","codePostal":"53000"},
{"id":19,"prenom":"Rémy","nom":"Guerry","poids":54,"taille":157,"rue":"rue des Sages","ville":"Lyon","codePostal":"69000"},
{"id":20,"prenom":"Nicolas","nom":"Drapeau","poids":63,"taille":145,"rue":"rue Mitterrand","ville":"Limoges","codePostal":"87000"}
]}回答 1
Stack Overflow用户
发布于 2019-01-15 23:02:49
您可以使用JSONArray代替JSONObject，并在该对象内使用for循环进行迭代：
JSONArray array = obj.getJSONArray("value");
for (int i = 0; i < array.length(); i++) {
System.out.println(arr.getJSONObject(i).getString("prenom"));
}您可以在此处找到有关JSONArray的更多详细信息
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/54201407
复制相关文章
相似问题
腾讯云开发者
