Question

我有一个用Jolie编写的服务，我想根据请求提取http标头。以同样的方式可以打印出request.id，我想打印标题。在代码中尝试使用粗体字母。代码如下：

    execution { concurrent }



  inputPort UserDB_Service {
    Location: "socket://localhost:8002/"
    Protocol: http { .format = "json"}
    Interfaces: Users, ShutdownInterface, ConnectionPool
  }


  outputPort DB_Connector {
  Location: "socket://localhost:1000/"
  Protocol: sodep
  Interfaces: ConnectionPool
  }



init
{
connectionConfigInfo@DB_Connector()(connectionInfo);
connect@Database(connectionInfo)()

}

main
{
//Example: http://localhost:8002/retrieve?id=1
[ retrieve(request)(response) {
    query@Database(
        "select * from users where user_id=:id" {
            .id = request.id
        }
    )(sqlResponse);

    println@Console( "You have requested the user_id: " + request.id)();
    **println@Console( "Request Headers: " + response.format)();**

    if (#sqlResponse.row == 1) {
        response -> sqlResponse.row[0]          
    }

} ] 



}

感谢您的帮助。

Answer 1

我不明白您是否知道要在入站请求中拥有哪些标头，或者您是否只想打印整个http消息以进行调试。在两种情况下都很快，我报告了两种解决方案：）

在第一种情况下，您可以为inputPort设置http协议的headers参数，以在请求消息中包含特定标头的内容，例如，

http {
    .headers.format = "format";
}

然后你可以用通常的方式检查值

println@Console( request.format )()

在第二种情况下，您可以使用

http {
    .debug = true;
    .debug.showContent = true
}

查看所有http请求和响应及其正文的日志。

有关协议的更多信息，特别是http协议，请参阅Jolie网站的文档。

Answer 2

我再次把输出放在这里。我想知道是否有可能提取“iv-user：g47257”标题，我已经使用Fiddler注入了它。再次感谢您的帮助。标题是这样的（更好的格式）。

INFO: [UserDB_crud.ol] [HTTP debug] Receiving:
HTTP Code: 0
Resource: /retrieve?id=1
--> Header properties
    iv-user: g47257
    accept-language: en-US,en;q=0.8,da;q=0.6,es;q=0.4
    host: localhost:8002
    upgrade-insecure-requests: 1
    connection: keep-alive
    cache-control: max-age=0
    accept-encoding: gzip, deflate, sdch
    accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp
 ,*/*;q=0.8
        user-agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36    (KHTM
L, like Gecko) Chrome/48.0.2564.116 Safari/537.36

You have requested the user_id: 1
mar. 10, 2016 2:30:44 PM jolie.Interpreter logInfo
INFO: [UserDB_crud.ol] [HTTP debug] Sending:
HTTP/1.1 200 OK
Server: Jolie
X-Jolie-MessageID: 0
Content-Type: application/json; charset=utf-8
Content-Encoding: gzip
Content-Length: 72

 ?V*H,..?/JQ?R*I-.Q?Q*-N-??♦
 ↑?(?%?"dRs‼3s?\►?????T♂ %??WE
 mar. 10, 2016 2:30:44 PM jolie.Interpreter logInfo
 INFO: [UserDB_crud.ol] [HTTP debug] Receiving:
 HTTP Code: 0
 Resource: /favicon.ico
 --> Header properties
    iv-user: g47257
    referer: http://localhost:8002/retrieve?id=1
    accept-language: en-US,en;q=0.8,da;q=0.6,es;q=0.4
    host: localhost:8002
    connection: keep-alive
    cache-control: no-cache
    pragma: no-cache
    accept-encoding: gzip, deflate, sdch
    user-agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTM
L, like Gecko) Chrome/48.0.2564.116 Safari/537.36
    accept: */*

mar. 10, 2016 2:30:44 PM jolie.Interpreter logWarning
WARNING: [UserDB_crud.ol] Received a message for operation favicon.ico, not   specified in the input port at the receiving service. Sending IOException to the  caller.
mar. 10, 2016 2:30:44 PM jolie.Interpreter logInfo
INFO: [UserDB_crud.ol] [HTTP debug] Sending:
HTTP/1.1 200 OK
Server: Jolie
X-Jolie-MessageID: 0
Content-Type: application/json; charset=utf-8
Content-Encoding: gzip
Content-Length: 102

?VJ-*?/R??V?M-.NLOU?R??w?HN-(???S?QJ?O☺?→←↓↑↑?(?$?$???%?d?(?↨?▬%?¶Z)?%?e&???☺  ??Z ?yd?Y

Answer 3

我在这里重新发表了我的最后评论，因为其他人也遇到了Efrin遇到的同样困难，但可能会错过我作为评论发表的解决方案。

您可以检查HTTP请求的标头，如下面的代码所示

include "console.iol" 
inputPort Me { 
  Location: "socket://localhost:8000" 
  Protocol: http { .headers.iv_user = "ivUser" } 
  RequestResponse: myRequest 
}

main { 
  myRequest( request )(){ println@Console( request.ivUser )() } 
}

请记住，如documentation中所述，Jolie http.headers参数将-映射到带有_的标头名称中，例如，在您的情况下，标头{{1} }成为Jolie HTTP协议参数中的iv-user。

除了Jolie文档中的描述和代码外，您还可以在Montelie https://doi.org/10.1016/j.scico.2016.05.002撰写的演示文稿中找到更多示例以及有关HTTP协议如何在Jolie中进行更详尽的解释。

如何在Jolie编程语言中获取服务上的http标头

3 个答案: