STM32利用CJSON库生成和解析JSON格式数据

//需要解析的字符串
char *str="{\"action\":\"writePara\",\"value\":{\"id\":\"1\",\"frontId\":\"1\",\"band485\":\"1200\",\"bandCan\":\"10\",\"sidewayTime\":\"10\",\"sidwwaySync\":\"1\",\"upDownTime\":\"10\",\"upDownTimeSync\":\"1\",\"hookMode\":\"electric\",\"senseMode\":\"single\",\"isStopCar\":\"1\",\"originalIsStopCar\":\"1\",\"isShiftLeft\":\"1\",\"isShiftRight\":\"1\",\"isShiftUp\":\"1\",\"isShiftDown\":\"1\",\"isRstData\":\"1\"}}";
int main(void)
{ 
  cJSON *root; 
  cJSON *jsonAction;
  cJSON *jsonRWAddr;

  while（1）
  {
    root=cJSON_Parse((const char *)str); 
    jsonAction = cJSON_GetObjectItem(root,"action");  //获取动作
    if(strcmp(jsonAction->valuestring,"writePara")==NULL)  //写参数
    {
      jsonRWAddr = cJSON_GetObjectItem(root,"writeId");  //获取读的ID
      modbusReadWriteAddr = atoi16(jsonRWAddr->valuestring,10);    //将ID转为int
    }
    cJSON_Delete(root);
    cJSON_Delete(jsonAction);
    cJSON_Delete(jsonRWAddr);

  }
}

int main(void)
{ 
  char *jsonValue;
  cJSON *jsonCreat;
  cJSON *jsonCreatValue;

  jsonCreat = cJSON_CreateObject();//创建一个json对象
  jsonCreatValue = cJSON_CreateObject();//创建一个json对象
  
  cJSON_AddItemToObject(jsonCreat, "action", cJSON_CreateString("readPara"));
  cJSON_AddItemToObject(jsonCreatValue, "id", cJSON_CreateString("1"));
  cJSON_AddItemToObject(jsonCreat, "value", jsonCreatValue);  

  jsonValue=cJSON_Print(jsonCreat);//打印生成JSON格式数据
  
  cJSON_Delete(jsonCreat);
  cJSON_Delete(jsonCreatValue);
  printf（"%s\r\n",jsonValue）;
  while（1）
  {
  
  }

}

生成的字符串
{action:readPara,value{id:1}}