前言
本文主要給大家介紹了關于.Net整合Json實現REST服務客戶端的相關內容，分享出來供大家參考學習，下面話不多說了，來一起看看詳細的介紹吧。
一. 準備工作
1. 點擊官網 或 本地 下載支持.Net4.0 的Json插件 Newtonsoft.Json
2. 找到 %壓縮包%\Bin\net40\Newtonsoft.Json.dll ，在工程中引用
二. 相關代碼介紹
1. HttpClientUtil.cs 封裝REST方法
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using Newtonsoft.Json;using System;using System.Collections.Generic;using System.IO;using System.Linq;using System.Net;using System.Text;namespace psi.Common{ public class HttpClientUtil { // REST @GET 方法，根據泛型自動轉換成實體，支持List<T> public static T doGetMethodToObj<T>(string url) { HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url); request.Method = "get"; request.ContentType = "application/json;charset=UTF-8"; HttpWebResponse response = null; try { response = (HttpWebResponse)request.GetResponse(); } catch (WebException e) { response = (HttpWebResponse)e.Response; return default(T); } string json = getResponseString(response); return JsonConvert.DeserializeObject<T>(json); } // 將 HttpWebResponse 返回結果轉換成 string private static string getResponseString(HttpWebResponse response) { string json = null; using (StreamReader reader = new StreamReader(response.GetResponseStream(), System.Text.Encoding.GetEncoding("UTF-8"))) { json = reader.ReadToEnd(); } return json; } // 獲取異常信息 private static string getRestErrorMessage(HttpWebResponse errorResponse) { string errorhtml = getResponseString(errorResponse); string errorkey = "UnhandledException:"; errorhtml = errorhtml.Substring(errorhtml.IndexOf(errorkey) + errorkey.Length); errorhtml = errorhtml.Substring(0, errorhtml.IndexOf("\n")); return errorhtml; } // REST @POST 方法 public static T doPostMethodToObj<T>(string url, string jsonBody) { HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url); request.Method = "post"; request.ContentType = "application/json;charset=UTF-8"; var stream = request.GetRequestStream(); using (var writer = new StreamWriter(stream)) { writer.Write(jsonBody); writer.Flush(); } HttpWebResponse response = (HttpWebResponse)request.GetResponse(); string json = getResponseString(response); return JsonConvert.DeserializeObject<T>(json); } // REST @PUT 方法 public static string doPutMethod(string url) { HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url); request.Method = "put"; request.ContentType = "application/json;charset=UTF-8"; HttpWebResponse response = (HttpWebResponse)request.GetResponse(); using (StreamReader reader = new StreamReader(response.GetResponseStream(), System.Text.Encoding.GetEncoding("UTF-8"))) { return reader.ReadToEnd(); } } // REST @PUT 方法，帶發送內容主體 public static T doPutMethodToObj<T>(string url, string jsonBody) { HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url); request.Method = "put"; request.ContentType = "application/json;charset=UTF-8"; request.Timeout = 30 * 1000; var stream = request.GetRequestStream(); using (var writer = new StreamWriter(stream)) { writer.Write(jsonBody); writer.Flush(); } HttpWebResponse response = (HttpWebResponse)request.GetResponse(); string json = getResponseString(response); return JsonConvert.DeserializeObject<T>(json); } // REST @DELETE 方法 public static bool doDeleteMethod(string url) { HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url); request.Method = "delete"; request.ContentType = "application/json;charset=UTF-8"; HttpWebResponse response = (HttpWebResponse)request.GetResponse(); using (StreamReader reader = new StreamReader(response.GetResponseStream(), System.Text.Encoding.GetEncoding("UTF-8"))) { string responseString = reader.ReadToEnd(); if (responseString.Equals("1")) { return true; } return false; } } }} |
2. 調用REST服務端方法，以Json作為數據格式
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/// <summary>/// 取得升級服務端的url地址/// </summary>/// <returns></returns>private String getServerUrl(){ String result = ""; UpgraderClient upgraderClient = getUpgraderClient(); if (upgraderClient != null) { result += "http://" + upgraderClient.serverIP + ":" + upgraderClient.serverPort + "/upgraderServer/service/upgrade.do"; } return result;}/// <summary>/// 測試與升級服務端的連接/// </summary>/// <returns></returns>public bool testConnect(){ FileRequest fileReq = new FileRequest(); fileReq.type = (int)RequestType.TEST_CONNECT; string jsonData = JsonConvert.SerializeObject(fileReq); FileResponse rep = null; try { rep = HttpClientUtil.doPostMethodToObj<FileResponse>(getServerUrl(), jsonData); } catch { throw new Exception("連接遠程服務端失敗！"); } return rep.status == 200;} |
總結
以上就是這篇文章的全部內容了，希望本文的內容對大家的學習或者工作具有一定的參考學習價值，如果有疑問大家可以留言交流，謝謝大家對服務器之家的支持。
原文鏈接：https://www.cnblogs.com/Mr-kevin/archive/2018/01/11/8269563.html
