各位前辈 壮士 大侠 请留步 先谢谢大家了

Question

表单把用户名 密码 等信息提交到main.py  mian.py处理 
mian.py经过处理后 把信息交给login.jsp 判断是否是合法用户 form表单信息如下<form name=form1 action="main/main.py" method=post>
      <input type=hidden value=chinese name=LANUAGE>
      <input type=hidden value=login.jsp name=jsp>                                              <table width="200" border="0" align="center" cellpadding="0" cellspacing="0"  background="images/entry.gif">
                                          <tr>
                                            <td valign="top">
                                              <table width="100%" height="91" border="0" cellpadding="0" cellspacing="0">
                                                <tr>
                                                  <td width="30%" height="18">&nbsp;用户名：</td>
                                                  <td width="70%" height="25">
                                                    <input name="username" type="text" style="border:1px solid  #6788AF;width:115;height:18;font-size:12px" size="32">
                                                                   </td>
                                                </tr>
                                                <tr>
                                                  <td height="9">&nbsp;密&nbsp;&nbsp;码：</td>
                                                  <td height="16">
                                                    <input type="password" name="password" style="border:1px solid  #6788AF;width:115;height:18;font-size:12px">
                                                  </td>我写的程序 如下
HttpClient client = new HttpClient();        client.getHostConfiguration().setHost(LOGON_SITE, LOGON_PORT,"http");
        //client.getHostConfiguration().setHost("10.0.10.105", 25);
              //模拟登录页面login.jsp->main.jsp        PostMethod post = new PostMethod("main/main.py");//提交密码用户名的地址        NameValuePair username = new NameValuePair("username", "xxf");     
        NameValuePair password = new NameValuePair("password", "222");     
        NameValuePair jsp = new NameValuePair("jsp", "login.jsp"); 
        NameValuePair lanuage = new NameValuePair("LANUAGE", "chinese");     
        
        post.setRequestBody(new NameValuePair[]{username,password,jsp,lanuage});
        int status = client.executeMethod(post);
        System.out.println(post.getResponseBodyAsString());        post.releaseConnection();         //访问所需的页面main2.jsp        GetMethod get = new GetMethod("/main/main.py");        client.executeMethod(get);        System.out.println(get.getResponseBodyAsString());        get.releaseConnection();    }
一直报错 请各位帮我看看 

Answer 1

错误信息
Exception in thread "main" java.net.UnknownHostException: http://mail.trasin.net
        at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:177)
        at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
        at java.net.Socket.connect(Socket.java:519)
        at java.net.Socket.connect(Socket.java:469)
        at java.net.Socket.<init>(Socket.java:366)
        at java.net.Socket.<init>(Socket.java:240)
        at org.apache.commons.httpclient.protocol.DefaultProtocolSocketFactory.createSocket(DefaultProtocolSocketFactory.java:80)
        at org.apache.commons.httpclient.protocol.DefaultProtocolSocketFactory.createSocket(DefaultProtocolSocketFactory.java:122)
        at org.apache.commons.httpclient.HttpConnection.open(HttpConnection.java:707)
        at org.apache.commons.httpclient.HttpMethodDirector.executeWithRetry(HttpMethodDirector.java:387)
        at org.apache.commons.httpclient.HttpMethodDirector.executeMethod(HttpMethodDirector.java:171)
        at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:397)
        at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:323)
        at testhttp.Main.main(Main.java:46)
Java Result: 1

Answer 2

那恐怕不是代码问题了,异常里提示http://mail.trasin.net的UnknownHostException
也许是DNS解析,防火墙,代理,访问权限之类的问题喵