将以下C#代码转换为java代码?

时间:2009-10-07 08:26:01

标签: java c# login

我有以下C#代码,我希望有一个与此相当的Java代码。以下C#代码来自this answer to another StackOverflow question

代码如下:

string orkutSite = "http://www.orkut.com/Login.aspx"; // enter correct address
string formPage = "";
string afterLoginPage = "";

// Get postback data and cookies
CookieContainer cookies = new CookieContainer();
HttpWebRequest getRequest = (HttpWebRequest)WebRequest.Create(orkutSite);
getRequest.CookieContainer = cookies;
getRequest.Method = "GET";

HttpWebResponse form = (HttpWebResponse)getRequest.GetResponse();
using (StreamReader response =
    new StreamReader(form.GetResponseStream(), Encoding.UTF8))
{    
    formPage = response.ReadToEnd();
}

Dictionary<string, string> inputs = new Dictionary<string,string>();
inputs.Add("__EVENTTARGET", "");
inputs.Add("__EVENTARGUMENT", "");
foreach (Match input in
    Regex.Matches(formPage,
        @"<input.*?name=""(?<name>.*?)"".*?(?:value=""(?<value>.*?)"".*?)? />",
        RegexOptions.IgnoreCase | RegexOptions.ECMAScript))
{    
    inputs.Add(input.Groups["name"].Value, input.Groups["value"].Value);
}

inputs["username"] = "xxxxx"; // *please*, check for \\
inputs["password"] = "yyyyy"; // correct field names \\

byte[] buffer = 
    Encoding.UTF8.GetBytes(
        String.Join("&",
           Array.ConvertAll<KeyValuePair<string, string>, string(                       
              inputs.ToArray(),
                  delegate(KeyValuePair item)
                  {
                      return item.Key + "=" + HttpUtility.UrlEncode(item.Value);
                  })));

HttpWebRequest postRequest = (HttpWebRequest)WebRequest.Create(orkutSite);
postRequest.CookieContainer = cookies;postRequest.Method = "POST";
postRequest.ContentType = "application/x-www-form-urlencoded";

// send username/password
using (Stream stream = postRequest.GetRequestStream())
{
    stream.Write(buffer, 0, buffer.Length);
}

// get response from login page
using (StreamReader reader = new StreamReader(
    postRequest.GetResponse().GetResponseStream(), Encoding.UTF8))
{
    afterLoginPage = reader.ReadToEnd();
}

1 个答案:

答案 0 :(得分:4)

我不打算为你转换这段代码的工作,但我可以为你提供一些帮助来开始。您列出的代码执行HTTP GET和POST,其中包含大量转换。乍看之下不确定它正在做什么或为什么会这样做。

我怀疑你可以用Java中的Apache Commons HttpClient等更高级别的库来替换它。它是一个非常强大的库,用于执行相同类型的操作,并且比Java中的简单URLConnection更直观。

他们有一个很好的tutorial和使用客户端的样本。如果您使用此客户端,则可能会减少样本中的转换代码。