//第一步 建立HTTP请求对象
var httpWebRequest = (HttpWebRequest)WebRequest.Create(apiURL);
httpWebRequest.ContentType = "application/json";
httpWebRequest.Method = "POST";
//第二步 生产请求报文
var requestObject = new {
method="Query"
,senderId=senderId
,serviceId=serviceId
,userCardId=userCardId
,userCertId=userCertId
,userDept=userDept
,userName=userName
,
param= new {
DataObjectCode = "NNNN"
,Condition="SFZH='11223344'"
,RequiredItems="[\"XM\",\"SFZH\"]"
,InfoCodeMode="1"
}
};
JavaScriptSerializer js = new JavaScriptSerializer();
string jsonData = js.Serialize(requestObject);
//params是C#关键字,所以最后代替一下解决。
//'\'单引号在json序列化时会被译为unicode编码,最后解码即可。
textBox1.Text =jsonData= Regex.Unescape(jsonData.Replace("param", "params"));
//DataContractJsonSerializer 序列化JSON需要显式定义类,且需要标记类成员属性,比较麻烦暂不用了
//DataContractJsonSerializer dj = new DataContractJsonSerializer(requestObject.GetType());
//MemoryStream msObj = new MemoryStream();
//dj.WriteObject(msObj, requestObject);
//textBox1.AppendText("\n" + msObj.ToString());
try
{
//第三步 发送请求
using (var streamWriter = new StreamWriter(httpWebRequest.GetRequestStream()))
{
streamWriter.Write(jsonData);
streamWriter.Flush();
streamWriter.Close();
}
//第四步 得到返回报文
var httpResponse = (HttpWebResponse)httpWebRequest.GetResponse();
using (var streamReader = new StreamReader(httpResponse.GetResponseStream()))
{
var resualt = streamReader.ReadToEnd();
textBox2.Text = resualt;
}
}
catch (Exception ex) {
textBox2.Text = ex.Message;
}