业务需求调用了阿里的内容安全的相关接口。代码示例如下：
Map<String, Object> task = new LinkedHashMap<String, Object>(); task.put("dataId", UUID.randomUUID().toString()); task.put("url", "http://f.hiphotos.baidu.com/image/pic/item/aa18972bd40735fa13899ac392510fb30f24084b.jpg"); task.put("time", new Date()); tasks.add(task); com.alibaba.fastjson.JSONObject data = new JSONObject(); data.put("scenes", Arrays.asList("porn","terrorism")); data.put("tasks", tasks); imageSyncScanRequest.setHttpContent(data.toJSONString().getBytes("UTF-8"), "UTF-8", FormatType.JSON);在项目中编写的时候我把com.alibaba.fastjson.JSONObject 换成了 org.json.JSONObject 后 。发现调用阿里接口一直报json parse error 错误。报错代码如下：
List<Map<String, Object>> tasks = new ArrayList<Map<String, Object>>(); Map<String, Object> task = new LinkedHashMap<String, Object>(); task.put("dataId", UUID.randomUUID().toString()); task.put("url", "http://f.hiphotos.baidu.com/image/pic/item/aa18972bd40735fa13899ac392510fb30f24084b.jpg"); task.put("time", new Date()); tasks.add(task); org.json.JSONObject data1 = new org.json.JSONObject(); data1.put("scenes", Arrays.asList("porn","terrorism")); data1.put("tasks", tasks); imageSyncScanRequest.setHttpContent(data1.toString().getBytes("UTF-8"), "UTF-8", FormatType.JSON);打印两个json后发现问题。com.alibaba.fastjson.JSONObject 的toJSONString 中的时间是时间戳，而org.json.JSONObject 的 toString（）中时间是有格式的.所以一直会报json解析错误：两种方法输出打印结果如下
// com.alibaba.fastjson.JSONObject 的toJSONString()方法打印结果 {"scenes":["porn","terrorism"],"tasks":[{"dataId":"6c0b4053-af2e-484e-9136-88c67060baa7","url":"http://f.hiphotos.baidu.com/image/pic/item/aa18972bd40735fa13899ac392510fb30f24084b.jpg","time":1540447702160}]} // org.json.JSONObject 的toString() 放发的打印结果 {"scenes":["porn","terrorism"],"tasks":[{"dataId":"6c0b4053-af2e-484e-9136-88c67060baa7","time":"Thu Oct 25 14:08:22 CST 2018","url":"http://f.hiphotos.baidu.com/image/pic/item/aa18972bd40735fa13899ac392510fb30f24084b.jpg"}]} 更改代码，如果用org.json.JSONObject 的话 向里边存时间的时候掉一下时间的getTime()方法就好了。更改后：
List<Map<String, Object>> tasks = new ArrayList<Map<String, Object>>(); Map<String, Object> task = new LinkedHashMap<String, Object>(); task.put("dataId", UUID.randomUUID().toString()); task.put("url", "http://f.hiphotos.baidu.com/image/pic/item/aa18972bd40735fa13899ac392510fb30f24084b.jpg"); task.put("time", new Date().getTime(); tasks.add(task); org.json.JSONObject data1 = new org.json.JSONObject(); data1.put("scenes", Arrays.asList("porn","terrorism")); data1.put("tasks", tasks); imageSyncScanRequest.setHttpContent(data1.toString().getBytes("UTF-8"), "UTF-8", FormatType.JSON);.
