WebAPI ：Get、Post、Delete、Put
2024-10-21 18:49:05
public class RestClientMethod
{
/// <summary>
/// 请求服务器地址
/// </summary>
public string BaseUri; //例如： http://10.0.0.193
public RestClientMethod(string baseUri)
{
this.BaseUri = baseUri;
} /// <summary>
/// Get请求
/// </summary>
/// <param name="uri"></param>
/// <param name="strAuth_token"></param>
/// <returns></returns>
public string Get(string uri, string strAuth_token)
{
string serviceUrl = string.Format("{0}{1}", this.BaseUri, uri); //先根据用户请求的uri构造请求地址
HttpWebRequest myRequest = (HttpWebRequest)HttpWebRequest.Create(serviceUrl); //创建访问对象
myRequest.Headers.Add("Authorization", strAuth_token); //需要auth_token验证时添加，没有可去掉，下同
HttpWebResponse myResponse; //通过访问对象获取响应内容
try
{
myResponse = (HttpWebResponse)myRequest.GetResponse();
}
catch (WebException ex)
{
myResponse = (HttpWebResponse)ex.Response;
Console.WriteLine(ex.Response);
}
StreamReader reader = new StreamReader(myResponse.GetResponseStream(), Encoding.UTF8); //通过响应内容流创建StreamReader对象，因为StreamReader更高级更快
//string returnXml = HttpUtility.UrlDecode(reader.ReadToEnd());//解决编码问题
string returnXml = reader.ReadToEnd();//利用StreamReader就可以从响应内容从头读到尾
//reader提供多种数据转换类型，如reader.ReadAsync可转换为所设定的实体类型
reader.Close();
myResponse.Close();
return returnXml;
} #region Post请求
/// <summary>
/// 登录获取权限POST底层方法
/// </summary>
/// <param name="data">数据参数</param>
/// <param name="uri">API接口path</param>
/// <returns></returns>
public string PostJsonData(string data, string uri, string strAgent)
{
//先根据用户请求的uri构造请求地址
string serviceUrl = string.Format("{0}{1}", this.BaseUri, uri);
//创建Web访问对象
HttpWebRequest myRequest = (HttpWebRequest)HttpWebRequest.Create(serviceUrl);
byte[] buf = System.Text.Encoding.GetEncoding("UTF-8").GetBytes(data); //数据转成“UTF-8”的字节流 //设置参数的编码格式，解决中文乱码
myRequest.Method = "POST";
myRequest.ContentLength = buf.Length; //设置myRequest的MIME类型及内容长度
if (strAgent != "")
{
myRequest.UserAgent = strAgent;
}
myRequest.ContentType = "application/json";
using (Stream stream = myRequest.GetRequestStream()) //发送请求
{
stream.Write(buf, 0, buf.Length);
stream.Close();
}
using (WebResponse myResponse = (WebResponse)myRequest.GetResponse()) //获取接口返回值 通过Web访问对象获取响应内容
{
using (StreamReader reader = new StreamReader(myResponse.GetResponseStream(), Encoding.UTF8)) //通过响应内容流创建StreamReader对象，因为StreamReader更高级更快
{
//string returnXml = HttpUtility.UrlDecode(reader.ReadToEnd());//解决编码问题
string returnXml = reader.ReadToEnd();//利用StreamReader就可以从响应内容从头读到尾
reader.Close();
myResponse.Close();
return returnXml;
}
}
} /// <summary>
/// json格式执行Post方法
/// </summary>
/// <param name="data"></param>
/// <param name="uri"></param>
/// <param name="strtoken"></param>
/// <returns></returns>
public string PostJsonWithAuth(string data, string uri, string strtoken)
{
string serviceUrl = string.Format("{0}{1}", this.BaseUri, uri);
HttpWebRequest myRequest = (HttpWebRequest)HttpWebRequest.Create(serviceUrl);
myRequest.Method = "POST";
myRequest.Headers.Add("Authorization", strtoken);
byte[] buf = System.Text.Encoding.GetEncoding("UTF-8").GetBytes(data);
myRequest.ContentLength = buf.Length;
myRequest.ContentType = "application/json";
myRequest.MaximumAutomaticRedirections = 1;
myRequest.AllowAutoRedirect = true;
//发送请求
using (Stream stream = myRequest.GetRequestStream())
{
stream.Write(buf, 0, buf.Length);
stream.Close();
}
using (WebResponse myResponse = (WebResponse)myRequest.GetResponse()) //获取接口返回值 通过Web访问对象获取响应内容
{
using (StreamReader reader = new StreamReader(myResponse.GetResponseStream(), Encoding.UTF8)) //通过响应内容流创建StreamReader对象，因为StreamReader更高级更快
{
//string returnXml = HttpUtility.UrlDecode(reader.ReadToEnd());//解决编码问题
string returnXml = reader.ReadToEnd();//利用StreamReader就可以从响应内容从头读到尾
reader.Close();
myResponse.Close();
return returnXml;
}
}
} /// <summary>
/// form-data格式执行Post方法 传图片
/// </summary>
/// <param name="url"></param>
/// <param name="imageInfo"></param>
/// <param name="stringDict"></param>
/// <param name="strAuth_token"></param>
/// <returns></returns>
public string PostFormData(string url, Dictionary<string, string> imageInfo, System.Collections.Specialized.NameValueCollection stringDict, string strAuth_token)
{
string responseContent = "";
try
{
string serviceUrl = string.Format("{0}/{1}", this.BaseUri, url);
var webRequest = (HttpWebRequest)WebRequest.Create(serviceUrl);
webRequest.Headers.Add("Authorization", strAuth_token);
var boundary = "---------------" + DateTime.Now.Ticks.ToString("x"); // 边界符
// 设置属性
webRequest.Method = "POST";
webRequest.Timeout = 10000; //默认超时时间为10秒
webRequest.ContentType = "multipart/form-data; boundary=" + boundary;
var beginBoundary = Encoding.ASCII.GetBytes("--" + boundary + "\r\n"); // 开始边界符
var endBoundary = Encoding.ASCII.GetBytes("--" + boundary + "--\r\n"); // 最后的结束符
var memStream = new MemoryStream(); //为系统内存提供流式的读写操作
memStream.Write(beginBoundary, 0, beginBoundary.Length); FileStream fileStream = null;
#region 写入文件
if (imageInfo != null)
{
foreach (var item in imageInfo)
{
fileStream = null;
fileStream = new FileStream(item.Value, FileMode.Open, FileAccess.Read);
const string filePartHeader = "Content-Disposition: form-data; name=\"{0}\"; filename=\"{1}\"\r\n" + "Content-Type: application/octet-stream\r\n\r\n";
var header = string.Format(filePartHeader, item.Key, item.Value);
var headerbytes = Encoding.UTF8.GetBytes(header);
memStream.Write(headerbytes, 0, headerbytes.Length);
var buffer = new byte[1024];
int bytesRead; // =0
while ((bytesRead = fileStream.Read(buffer, 0, buffer.Length)) != 0)
{
memStream.Write(buffer, 0, bytesRead);
}
}
}
#endregion var contentLine = Encoding.ASCII.GetBytes("\r\n");
memStream.Write(contentLine, 0, contentLine.Length);
// 写入字符串的Key
var stringKeyHeader = "\r\n--" + boundary +
"\r\nContent-Disposition: form-data; name=\"{0}\"" +
"\r\n\r\n{1}\r\n";
if (stringDict != null)
{
foreach (byte[] formitembytes in from string key in stringDict.Keys
select string.Format(stringKeyHeader, key, stringDict[key])
into formitem
select Encoding.UTF8.GetBytes(formitem))
{
memStream.Write(formitembytes, 0, formitembytes.Length);
}
} // 写入最后的结束边界符
memStream.Write(endBoundary, 0, endBoundary.Length);
webRequest.ContentLength = memStream.Length;
var requestStream = webRequest.GetRequestStream();
memStream.Position = 0;
var tempBuffer = new byte[memStream.Length];
memStream.Read(tempBuffer, 0, tempBuffer.Length);
memStream.Close();
requestStream.Write(tempBuffer, 0, tempBuffer.Length);
requestStream.Close(); using (var httpWebResponse = (HttpWebResponse)webRequest.GetResponse())
{
using (var httpStreamReader = new StreamReader(httpWebResponse.GetResponseStream(),
Encoding.GetEncoding("utf-8")))
{
responseContent = httpStreamReader.ReadToEnd();
}
if (fileStream != null)
{
fileStream.Close();
}
httpWebResponse.Close();
webRequest.Abort();
}
}
catch (Exception ex)
{
responseContent = ex.ToString();
}
return responseContent;
} #endregion #region Put请求
public string PutWithToken(string uri, string info, string strToken)
{
string serviceUrl = string.Format("{0}{1}", this.BaseUri, uri);
HttpWebRequest myRequest = (HttpWebRequest)HttpWebRequest.Create(serviceUrl); //后台或可使用WebRequest request = WebRequest.Create(url);
myRequest.Headers.Add("Authorization", strToken); //数据转成“UTF-8”的字节流 //设置参数的编码格式，解决中文乱码
byte[] buf = System.Text.Encoding.GetEncoding("UTF-8").GetBytes(info);
myRequest.Method = "Put";
myRequest.ContentLength = buf.Length;
myRequest.ContentType = "application/json";
//myRequest.MaximumAutomaticRedirections = 1;
//myRequest.AllowAutoRedirect = true;
//发送请求
using (Stream stream = myRequest.GetRequestStream())
{
stream.Write(buf, 0, buf.Length);
stream.Close();
}
using (WebResponse myResponse = (WebResponse)myRequest.GetResponse()) //获取接口返回值 通过Web访问对象获取响应内容
{
using (StreamReader reader = new StreamReader(myResponse.GetResponseStream(), Encoding.UTF8)) //通过响应内容流创建StreamReader对象，因为StreamReader更高级更快
{
//string returnXml = HttpUtility.UrlDecode(reader.ReadToEnd());//解决编码问题
string returnXml = reader.ReadToEnd();//利用StreamReader就可以从响应内容从头读到尾
reader.Close();
myResponse.Close();
return returnXml;
}
}
} #endregion #region Delete请求
public string Delete(string data, string uri, string strServerToken)
{
string serviceUrl = string.Format("{0}{1}", this.BaseUri, uri);
HttpWebRequest myRequest = (HttpWebRequest)HttpWebRequest.Create(serviceUrl);
myRequest.Headers.Add("Authorization", strServerToken);
myRequest.Method = "DELETE";
myRequest.ContentType = "application/x-www-form-urlencoded";
//myRequest.MaximumAutomaticRedirections = 1;
//myRequest.AllowAutoRedirect = true;
if (data != "")
{
byte[] buf = System.Text.Encoding.GetEncoding("UTF-8").GetBytes(data);
myRequest.ContentLength = buf.Length;
using (Stream stream = myRequest.GetRequestStream()) //发送请求
{
stream.Write(buf, 0, buf.Length);
stream.Close();
}
}
using (HttpWebResponse myResponse = (HttpWebResponse)myRequest.GetResponse()) //获取接口返回值 通过Web访问对象获取响应内容
{
using (StreamReader reader = new StreamReader(myResponse.GetResponseStream(), Encoding.UTF8)) //通过响应内容流创建StreamReader对象，因为StreamReader更高级更快
{
//string returnXml = HttpUtility.UrlDecode(reader.ReadToEnd());//解决编码问题
string returnXml = reader.ReadToEnd();//利用StreamReader就可以从响应内容从头读到尾
reader.Close();
myResponse.Close();
return returnXml;
}
}
} #endregion }
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