Java 获取JSONArray的每个元素
我有一个像这样的jsonArray。如何从java中获取每个数组元素Java 获取JSONArray的每个元素,java,json,Java,Json,我有一个像这样的jsonArray。如何从java中获取每个数组元素 [{"subjectname":"Health","classKey":5084485095784448,"staffKeyId":4819823842295808,"subjectKeyId":5756749483081728,"class":"8C"},{"subjectname":"Civics","classKey":5641826627223552,"staffKeyId":4549155540172800,"sub
[{"subjectname":"Health","classKey":5084485095784448,"staffKeyId":4819823842295808,"subjectKeyId":5756749483081728,"class":"8C"},{"subjectname":"Civics","classKey":5641826627223552,"staffKeyId":4549155540172800,"subjectKeyId":5563198258282496,"class":"8B"}]
只需使用Jackson JSON解析器()
String jsonString=“[{\'n\':0},{\'n\':1}]”;//在此处添加您的JSON
ObjectMapper mapper=新的ObjectMapper();
JsonNode ActualLobj=mapper.readTree(jsonString);
迭代器it=actualObj.Iterator();
while(it.hasNext()){
JsonNode next=it.next();
System.out.println(next.get(“n”);
}
请将您的尝试张贴在此处。到目前为止,您尝试了什么来实现上述结果?
String jsonString = "[{\"n\":0},{\"n\":1}]"; // add your JSON here
ObjectMapper mapper = new ObjectMapper();
JsonNode actualObj = mapper.readTree(jsonString);
Iterator<JsonNode> it = actualObj.iterator();
while(it.hasNext()) {
JsonNode next = it.next();
System.out.println(next.get("n"));
}