javax.json.stream.JsonParser.hasNext()方法的使用及代码示例

x33g5p2x  于2022-01-21 转载在 其他  
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本文整理了Java中javax.json.stream.JsonParser.hasNext()方法的一些代码示例，展示了JsonParser.hasNext()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。JsonParser.hasNext()方法的具体详情如下：
包路径：javax.json.stream.JsonParser
类名称：JsonParser
方法名：hasNext

JsonParser.hasNext介绍

[英]Returns true if there are more parsing states. This method returns false if the parser reaches the end of the JSON text.
[中]如果存在更多解析状态，则返回true。如果解析器到达JSON文本的末尾，则此方法返回false。

代码示例

代码示例来源：origin: org.eclipse/yasson

@Override
public boolean hasNext() {
  return  jsonParser.hasNext();
}

代码示例来源：origin: org.apache.johnzon/johnzon-core

@Override
public boolean hasNext() {
  return jsonParser.hasNext();
}

代码示例来源：origin: apache/johnzon

@Override
public boolean hasNext() {
  return jsonParser.hasNext();
}

代码示例来源：origin: org.ovirt.engine.api/metamodel-runtime

/**
 * Skips the current JSON object or array.
 */
public void skip() {
  int depth = 1;
  while (parser.hasNext()) {
    switch (parser.next()) {
    case START_ARRAY:
    case START_OBJECT:
      depth++;
      break;
    case END_ARRAY:
    case END_OBJECT:
      depth--;
      if (depth == 0) {
        return;
      }
      break;
    }
  }
}

代码示例来源：origin: stackoverflow.com

Map<String, String> values = new HashMap<>();
String keyName = null;

JsonParser jsonParser = Json.createParser(new StringReader(json));

while (jsonParser.hasNext())
{
 JsonParser.Event event = jsonParser.next();

 if (JsonParser.Event.KEY_NAME.equals(event))
 {
  keyName = jsonParser.getString();
 }
 else if (JsonParser.Event.VALUE_STRING.equals(event))
 {
  values.put(keyName, jsonParser.getString());
 }
}

代码示例来源：origin: stackoverflow.com

String jsonString="";
JsonParser jParser= Json.createParser(new ByteArrayInputStream(jsonString.getBytes()));
while(jParser.hasNext()){
  if(jParser.next()==Event.KEY_NAME){
    if(jParser.getString().equals("viewCount")){
      jParser.next();
      System.out.println(jParser.getString());
    }
  }
}

代码示例来源：origin: org.eclipse.persistence/org.eclipse.persistence.core

private void doParsing(JsonParser parser) throws SAXException, IOException {
  JsonStructureBuilder builder = null;
  while (parser.hasNext()) {
    builder = parseEvent(parser);
  }
  assert builder != null;
  JsonStructure jsonStructure = builder.build();
  structureReader.parseRoot(jsonStructure);
}

代码示例来源：origin: com.haulmont.thirdparty/eclipselink

private void doParsing(JsonParser parser) throws SAXException, IOException {
  JsonStructureBuilder builder = null;
  while (parser.hasNext()) {
    builder = parseEvent(parser);
  }
  assert builder != null;
  JsonStructure jsonStructure = builder.build();
  structureReader.parseRoot(jsonStructure);
}

代码示例来源：origin: webex/spark-java-sdk

private void scrollToItemsArray(JsonParser parser) {
  JsonParser.Event event;
  while (parser.hasNext()) {
    event = parser.next();
    if (event == JsonParser.Event.KEY_NAME &&  parser.getString().equals("items")) {
      break;
    }
  }
  event = parser.next();
  if (event != JsonParser.Event.START_ARRAY) {
    throw new SparkException("bad json");
  }
}

代码示例来源：origin: dsukhoroslov/bagri

/**
 * 
 * @param parser the JSON streaming parser
 * @return the list of parsed XDM data elements
 * @throws BagriException in case of any parsing error
 */
public ParseResults parse(JsonParser parser) throws BagriException {
  
  ParserContext ctx = initContext();
  while (parser.hasNext()) {
    processEvent(ctx, parser);
  }
  return ctx.getParseResults();
}

代码示例来源：origin: agoncal/agoncal-book-javaee7

public String parsePurchaseOrderAndReturnEmail() throws FileNotFoundException {
  String email = null;

  JsonParser parser = Json.createParser(new FileReader("src/main/resources/order.json"));
  while (parser.hasNext()) {
   JsonParser.Event event = parser.next();
   while (parser.hasNext() && !(event.equals(JsonParser.Event.KEY_NAME) && parser.getString().matches("email"))) {
    event = parser.next();
   }

   if (event.equals(JsonParser.Event.KEY_NAME) && parser.getString().matches("email")) {
    parser.next();
    email = parser.getString();
   }
  }
  return email;
 }
}

代码示例来源：origin: radcortez/wow-auctions

@Override
public Object readItem() throws Exception {
  while (parser.hasNext()) {
    JsonParser.Event event = parser.next();
    Auction auction = new Auction();
    switch (event) {
      case KEY_NAME:
        if (readAuctionItem(auction)) {
          return auction;
        }
        break;
    }
  }
  return null;
}

代码示例来源：origin: beckchr/staxon

private Event peekEvent() throws IOException {
  if (peekEvent == null) {
    try {
      if (parser.hasNext()) {
        peekEvent = parser.next();
      }
    } catch (JsonException e) {
      if (e.getCause() instanceof IOException) {
        throw (IOException) e.getCause();
      } else {
        throw e;
      }
    }
  }
  return peekEvent;
}

代码示例来源：origin: javaee/javaee7-samples

public static void main(String... args) throws Exception {
    URL url = new URL("https://graph.facebook.com/search?q=java&type=post");
    try (InputStream is = url.openStream();
       JsonParser parser = Json.createParser(is)) {
      
      while (parser.hasNext()) {
        Event event = parser.next();
        if (event == Event.KEY_NAME) {
          switch (parser.getString()) {
            case "name":
              parser.next();
              System.out.println("----> " + parser.getString());
              break;
            case "message":
              parser.next();
              System.out.println("----> " + parser.getString());
              System.out.println("**************");
              break;
          }
        }
      }
    }
  }
}

代码示例来源：origin: owlike/genson

@Override
public JsonObject readObject() {
 checkNotReadedAndRead();
 if (parser.hasNext()) {
  Event evt = parser.next();
  if (START_OBJECT == evt) {
   return read(builderFactory.createObjectBuilder()).build();
  } else throw new JsonException("Expected " + START_OBJECT + " but got " + evt);
 }
 throw new JsonException("Empty stream");
}

代码示例来源：origin: com.owlike/genson

@Override
public JsonObject readObject() {
 checkNotReadedAndRead();
 if (parser.hasNext()) {
  Event evt = parser.next();
  if (START_OBJECT == evt) {
   return read(builderFactory.createObjectBuilder()).build();
  } else throw new JsonException("Expected " + START_OBJECT + " but got " + evt);
 }
 throw new JsonException("Empty stream");
}

代码示例来源：origin: owlike/genson

@Override
public JsonArray readArray() {
 checkNotReadedAndRead();
 if (parser.hasNext()) {
  Event evt = parser.next();
  if (START_ARRAY == evt) {
   return read(builderFactory.createArrayBuilder()).build();
  } else throw new JsonException("Expected " + START_ARRAY + " but got " + evt);
 }
 throw new JsonException("Empty stream");
}

代码示例来源：origin: com.owlike/genson

@Override
public JsonStructure read() {
 checkNotReadedAndRead();
 if (parser.hasNext()) {
  Event evt = parser.next();
  if (START_OBJECT == evt) {
   return read(builderFactory.createObjectBuilder()).build();
  } else if (START_ARRAY == evt) {
   return read(builderFactory.createArrayBuilder()).build();
  } else throw new JsonException("Expected START_OBJECT or START_ARRAY but got " + evt);
 }
 throw new JsonException("Empty stream");
}

代码示例来源：origin: owlike/genson

@Override
public JsonStructure read() {
 checkNotReadedAndRead();
 if (parser.hasNext()) {
  Event evt = parser.next();
  if (START_OBJECT == evt) {
   return read(builderFactory.createObjectBuilder()).build();
  } else if (START_ARRAY == evt) {
   return read(builderFactory.createArrayBuilder()).build();
  } else throw new JsonException("Expected START_OBJECT or START_ARRAY but got " + evt);
 }
 throw new JsonException("Empty stream");
}

代码示例来源：origin: com.owlike/genson

@Override
public JsonArray readArray() {
 checkNotReadedAndRead();
 if (parser.hasNext()) {
  Event evt = parser.next();
  if (START_ARRAY == evt) {
   return read(builderFactory.createArrayBuilder()).build();
  } else throw new JsonException("Expected " + START_ARRAY + " but got " + evt);
 }
 throw new JsonException("Empty stream");
}

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