我有一个用C#编写的WCF服务:
namespace MyServices
{
[ServiceContract]
public interface IMyService
{
[OperationContract]
[WebGet(UriTemplate = "/foo/{param}")]
string foo(string param);
}
}
public class MyService : IMyService
{
public string foo(string param)
{
//Do stuff with param
return "Some processed data";
}
}
每当我使用这个服务时,它工作正常,除了响应中的每一行总是前面有一个数字(有时是一个带字符的数字)。最后一行总是0。
下面是一个使用Java编写的服务的客户端:
public class Main
{
public static void main(String[] args)
{
try
{
Socket soc = new Socket(InetAddress.getByName("<SOME IP ADDRESS>"), 80);
PrintWriter out = new PrintWriter(soc.getOutputStream());
String headers = "GET /MyService.svc/foo/some_data HTTP/1.1\r\n"
+ "Host: <SOME HOST>\r\n"
+ "Content-Type: text/plain;charset=utf-8\r\n"
+ "Content-Length: 0\r\n\r\n";
out.print(headers);
out.flush();
BufferedReader in = new BufferedReader(new InputStreamReader(soc.getInputStream()));
String response;
while((response = in.readLine())!=null)
{
//Do something with the response
System.out.println(response);
}
out.close();
soc.close();
catch (UnknownHostException e)
{
System.err.println(e.getMessage());
}
catch (IOException e)
{
e.printStackTrace();
}
}
}
这将输出以下内容:
HTTP/1.1 200 OK
Cache-Control: private
Transfer-Encoding: chunked
Content-Type: text/plain;charset=utf-8
Server: Microsoft-IIS/8.0
X-AspNet-Version: 4.0.30319
X-Powered-By: ASP.NET
Set-Cookie: ARRAffinity=2e5dd814a4cb78f8a5825d56c5879cd18fa384d20597b10f3c685ffe2cff1f53;Path=/;Domain=<SOME DOMAIN NAME>
Date: Tue, 02 Aug 2016 22:53:25 GMT
15
"Some processed data"
0
起初我认为数字表示下一行中的字符数,0表示邮件正文的结尾,但似乎并非如此。
感谢任何帮助,谢谢:)
答案 0 :(得分:1)
这是因为Transfer-Encoding被分块(https://en.wikipedia.org/wiki/Chunked_transfer_encoding)。 15是HEX,意思是这个块中有21个字符,0表示结束标记。