我有字符串hello Mr $name ur score is $value
,获得$ name和$ value部分的最佳方法是什么?
String json = "{\n" + "\"id\": 1,\n" + "\"data\":[\n" + "{\n"
+ "\"to\":123456789,\"name\":\"james\",\"value\":200\n" + "},\n" + "{\n"
+ "\"to\":123456789,\"name\":\"jhon\",\"value\":20\n" + "}]\n" + "}\n" + "";
Object obj = new JSONParser().parse(json);
JSONObject jsonObject = (JSONObject) obj;
long id = (long) jsonObject.get("id");
JSONArray arrayOfdata = (JSONArray) jsonObject.get("data");
JSONObject dataObject = new JSONObject();
ArrayList<String> data = new ArrayList<>();
for (String w : words) {
if (w.contains("$"))
if (json.contains(w.substring(1))) {
data.add(w.substring(1));
}
}
for (int n = 0; n < arrayOfdata.size(); n++) {
dataObject = (JSONObject) arrayOfdata.get(n);
for (int j = 0; j < data.size(); j++) {
String msg = message.replace(data.get(j).toString(), dataObject.get(data.get(j)).toString());
String strNew = msg.replace("$", "");
logger.info("strNew " + strNew);
}
}
答案 0 :(得分:0)
public static void main(String...strings) {
String inputString = "{\n" + "\"id\": 1,\n" + "\"data\":[\n" + "{\n" + "\"to\":123456789,\"name\":\"james\",\"value\":200\n" + "},\n" + "{\n" + "\"to\":123456789,\"name\":\"jhon\",\"value\":20\n" + "}]\n" + "}\n" + "";
Pattern pattern = Pattern.compile("(?:\"name\":\")(.*?)(?:\"value\":)[0-9]*");
Matcher m = pattern.matcher(inputString);
while (m.find()) {
String[] matches = m.group().split(",");
String name = null, value = null;
for (String match : matches) {
if(match.contains("name")){
name= match.substring(match.indexOf("name")+"name".length()).replaceAll("\"", "");
}else if(match.contains("value")) {
value= match.substring(match.indexOf("value")+"value".length()).replaceAll("\"", "");
}
}
System.out.println("Bonjour Mr. "+name+" votre score est value "+value);
}
}
答案 1 :(得分:0)
我有点了解您的代码的目的,这是尝试获取json数组中的每个条目,每个名称和值的方法,希望对您有所帮助。
String json = "{\n" + "\"id\": 1,\n" + "\"data\":[\n" + "{\n"
+ "\"to\":123456789,\"name\":\"james\",\"value\":200\n" + "},\n" + "{\n"
+ "\"to\":123456789,\"name\":\"jhon\",\"value\":20\n" + "}]\n" + "}\n" + "";
JSONObject jsonObject = new JSONObject(json);
JSONArray arrayOfdata = (JSONArray) jsonObject.get("data");
String message = "hello Mr %s your score is %s";
for (int i = 0; i < arrayOfdata.length(); i++) {
JSONObject obj = arrayOfdata.getJSONObject(i);
Object name = obj.get("name");
Object value = obj.get("value");
System.out.printf(message, name, value);
System.out.println();
}