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I'm working under a AS400 system using Java 1.4.2, to get an XML but when I do the request using getOutputStream() I got an IOException and the message only returns the domain of the provider.

Here a part of my code:

try {
  url = new URL("https://test.example.it/27/xml/"); //Example URL...
} catch(MalformedURLException exMAL) {
  return exMAL.getMessage();
}

//Set parameters
LinkedHashMap params = new LinkedHashMap();
params.put("id", id);
params.put("password", password);
...
params.put("description", description);

String data = "";
Set set = params.entrySet();
Iterator i = set.iterator();

//Create URL of parameters
while(i.hasNext()){
if(data != ""){
  data += "&";
}
Map.Entry me = (Map.Entry)i.next();
  data += me.getKey() + "=" + me.getValue();
}

try {
  //Create connection
  conn = (HttpURLConnection) url.openConnection();
  conn.setRequestMethod("POST");
  conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
  conn.setDoInput(true);
  conn.setDoOutput(true);
  conn.setUseCaches(false);

  //Do request
  OutputStreamWriter wr = new OutputStreamWriter(conn.getOutputStream()); //Error here
  wr.write(data);
  wr.flush();

  //Get resource
  InputStream is = conn.getInputStream();
  outputData = readAll(is);
  } catch (IOException ioEx) {
    return "ERROR IOException: " + ioEx.getMessage();
  }

And the message error is "ERROR IOException: test.example.it".

I tested my code in a computer with Windows XP, Netbeans 4.1, Java 1.4.2 Build 19 (the same in the AS400) and I get the XML without problems.

I can compile my code into the AS400 but when I run the class in QSHELL or using a RPG Program i get the error.

Somebody knows what else I have to do or why I get this error?

Thanks!

EDIT:

Its a POST method, and actually I included setDoInput and setDoOutput in the code.

Now printing the exception I get this:

java.net.UnknownHostException: test.example.it

ERROR IOException: test.example.it

EDIT:

Looks like nslookup doesn't resolve the domain but after that I retry using the IP and now I have this error...

java.net.SocketException: The value specified for the argument is not correct.
ERROR IOException: The value specified for the argument is not correct.

I think it would be a problem with AS400 security, probably should I add this domain in a list or edit a system value?

EDIT:

Using TCPCFG and then option 10, in this table of hosts I don't have the domain test.example.it, I suppose that I need to add this domain and IP, isn't it?

EDIT:

The version is V6R1M0. I added the IPs (Option 10. Work with TCP/IP host table entries) and now the AS400 resolve the domain but now I have a new problem.

java.net.ConnectException: A remote host refused an attempted connect operation.

In the option 12 I have *SAME in all the options. For option 1 the following:

 Internet         Subnet              Line      Line  Opt  Address          Mask             Description  Type 

 127.0.0.1        255.0.0.0        *LOOPBACK    *NONE
 151.208.xxx.xx   255.255.255.0    ETHLINE      *ELAN

I found in a group this: "Is the 8080 port on the 400. Is the 400 setup to accept 8080 traffic via SSL".

How can I able the 400 to accept traffic?

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1 回答 1

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最后我解决了我的问题，在主机表中添加了 IP 和域（正如我在编辑中提到的），但这是另一个问题。

提供商给了我一个 IP 用于请求，另外两个 IP 用于响应，我在主机表中添加了三个具有相同域的 IP。我删除了三个 IP 中的两个，然后我尝试仅使用 IP 进行请求，它成功了！

现在的问题是通过Java的请求太慢了！但这是另一个话题。非常感谢大家。

于 2016-03-29T23:12:11.757 回答