映射未映射

Question

前端将这个json发送到我的API

{  
  "parameters":{  
      "MAIL_BODY":"saffsa",
      "MAIL_FROM":"sffasafs",
      "MAIL_RECEIVED_DATE":"asfasf",
      "MAIL_SUBJECT":"asfafs",
      "MAIL_TO":"ssfafs"
   },
   "templateID":"9093",
   "deliveryChannel":"NONE"
}

控制器：

 @RequestMapping(value = "/previewDocument", method = RequestMethod.POST, produces = "application/pdf")
public byte[] previewDocument(@RequestBody Map<String, String> parameters, @RequestBody String templateID, @RequestBody String deliveryChannel) {
    // TODO
}

Answer 1

用map 替换map ，解析就会成功。内部对象被解析为映射 。
您将需要强制转换/查询方法体中值的类型

if (parameters.get("parameters") instanceof Map) {
  Map<String, String> parametersMap = (Map<String, String>)parameters.get("parameters");
  String body = parametersMap.get("MAIL_BODY");
}