背景
笔者最近在做非标自动化的标准化工作,其中一项工作就是要求设备厂商按照MES厂商(我司)的要求,开放一个接口接收MES的派工任务。
厂商只要实现这个接口,我们就可以通过java调用厂商的服务了,于是有了这篇文章,文章只是抛砖引玉,实现方式供参考。
代码实现
1、Visual Stduio新建asp.net项目,新建一个ashx文件,代码如下
sendOrder.ashx
using System.IO; using System.Text; using System.Web; using Newtonsoft.Json; using Newtonsoft.Json.Serialization; using AST_AUTO.Models; namespace AST_AUTO { /// <summary> /// Handler1 的摘要说明 /// </summary> public class OrderReceiveHandler : IHttpHandler { public void ProcessRequest(HttpContext context) { var request = context.Request; var response = context.Response; var contentType = request.ContentType; var httpMethod = request.HttpMethod; if (httpMethod == "POST" && contentType.StartsWith("application/json")) { response.ContentType = "application/json; charset=UTF-8"; Stream bodyStream = context.Request.InputStream; string requestPayload = string.Empty; bodyStream.Position = 0; using (var streamReader = new StreamReader(bodyStream, Encoding.UTF8)) { //读取Body的时候,请尽量使用异步方式读取。ASP.NET Core默认是不支持同步读取的,会抛出异常 //解决方法 启用 KestrelServerOptions 中 AllowSynchronousIO requestPayload = streamReader.ReadToEnd(); bodyStream.Position = 0; } //反序列化 ReceiveOrder order = (ReceiveOrder)JsonConvert.DeserializeObject(requestPayload,typeof(ReceiveOrder)); Models.ComResult<string> result = new Models.ComResult<string>(); result.Success = false; result.Data = "0x123 read image buffer error!"; result.Code = "PLC_ERROR_01"; result.Message = "PLC设备XXX未就绪"; string json = JsonConvert.SerializeObject(result, new JsonSerializerSettings { ContractResolver = new CamelCasePropertyNamesContractResolver() }); response.Write(context.Server.UrlDecode(json)); } } public bool IsReusable { get { return false; } } } }
ComResult.cs如下
namespace AST_AUTO.Models { public class ComResult<T> { private bool _success; private string _message; private string _code; private T _data; public bool Success { get => _success; set => _success = value; } public string Message { get => _message; set => _message = value; } public string Code { get => _code; set => _code = value; } public T Data { get => _data; set => _data = value; } } }
package.json
<?xml version="1.0" encoding="utf-8"?> <packages> <!--其他省略--> <package id="Newtonsoft.Json" version="12.0.2" targetFramework="net45" /> </packages>
测试
输入参数:
{ "dispatchNo": "1000021-10010", "dispatchQuantity": 100 }
输出参数:
{ "success": false, "message": "PLC设备XXX未就绪", "code": "PLC_ERROR_01", "data": "0x123 read image buffer error!" }
本博客文章绝大多数为原创,少量为转载,代码经过测试验证,如果有疑问直接留言或者私信我。
创作文章不容易,转载文章必须注明文章出处;如果这篇文章对您有帮助,点击右侧打赏,支持一下吧。
创作文章不容易,转载文章必须注明文章出处;如果这篇文章对您有帮助,点击右侧打赏,支持一下吧。