JSONArray合并

要合并两个JSONArray，可以使用以下代码：

public static String joinJSONArray(JSONArray mData, JSONArray array) {
    StringBuffer buffer = new StringBuffer();
    buffer.append("[");
    try {
        int len = mData.size();
        for (int i = 0; i < len; i++) {
            JSONObject obj1 = (JSONObject) mData.get(i);
            if (i == len - 1) {
                buffer.append(obj1.toString());
            } else {
                buffer.append(obj1.toString()).append(",");
            }
        }
        len = array.size();
        if (len > 0) {
            buffer.append(",");
        }
        for (int i = 0; i < len; i++) {
            JSONObject obj1 = (JSONObject) array.get(i);
            if (i == len - 1) {
                buffer.append(obj1.toString());
            } else {
                buffer.append(obj1.toString()).append(",");
            }
        }
    } catch (Exception e) {
        e.printStackTrace();
        logger.error("合并jsonarray异常", e);
    }
    buffer.append("]");
    return buffer.toString();
}