前言
本文主要给大家介绍了关于.Net整合Json实现REST服务客户端的相关内容，分享出来供大家参考学习，下面话不多说了，来一起看看详细的介绍吧。
一. 准备工作
1. 点击官网 或 本地 下载支持.Net4.0 的Json插件 Newtonsoft.Json
2. 找到 %压缩包%Binnet40Newtonsoft.Json.dll ，在工程中引用
二. 相关代码介绍
1. HttpClientUtil.cs 封装REST方法
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，根据泛型自动转换成实体，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);
}
// 将 HttpWebResponse 返回结果转换成 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;
}
// 获取异常信息 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，带发送内容主体 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. 调用REST服务端方法，以Json作为数据格式
/// <summary>/// 取得升级服务端的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>/// 测试与升级服务端的连接/// </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("连接远程服务端失败！");
}
return rep.status == 200;
}
总结
以上就是这篇文章的全部内容了，希望本文的内容对大家的学习或者工作具有一定的参考学习价值，如果有疑问大家可以留言交流，谢谢大家对脚本之家的支持。
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