第一种(java8)：遍历JSONArray 拼接字符串
public static void main(String[] args) {
JSONArray jSONArray = new JSONArray();
JSONObject jb = new JSONObject();
jb.put("id", 1);
jb.put("name", "s");
jSONArray.add(jb);
JSONObject j1 = new JSONObject();
j1.put("id", 2);
j1.put("name", "s");
jSONArray.add(j1);
StringBuffer sBuffer = new StringBuffer();
jSONArray.stream().forEach(jsonobejct->arrayIdToString((JSONObject) jsonobejct,sBuffer));
System.out.println(sBuffer.toString());
}
private static StringBuffer arrayIdToString(JSONObject jsonobejct,
StringBuffer sBuffer) {
return sBuffer.append(jsonobejct.getInteger("id")).append(",");
}
第二种：for循环遍历
public static void f2(JSONArray ja) {
for(
)
)
