java.net.ConnectException：连接超时：发生连接异常
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java.net.ConnectException: Connection timed out: connect exception occur
提问by Dominik Rockenschaub
I have this code, can you help me to solve this problem?
I have written this code:
我有这个代码，你能帮我解决这个问题吗？
我写了这段代码：
out = new DataOutputStream(urlConnection.getOutputStream());//exception occur
String content = (String) remoteUrlList.get(urlID + ".params");
content = (content == null ? "" : content + "&") + "content=" + URLEncoder.encode(textArea.getText());
if (debug > 0) System.err.println("Capture: " + content);
out.writeBytes(content);
out.flush();
out.close();
// retrieve response from the remote host and display it.
if (debug > 0) System.err.println("Capture: reading response");
in = new BufferedReader(new InputStreamReader(urlConnection.getInputStream()));
String str;
while (null != ((str = in.readLine()))) {
System.out.println("Capture: " + str);
}
in.close();
doneDialog.pack();
doneDialog.setVisible(true);
The error listing is:
错误列表是：
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
at java.net.Socket.connect(Socket.java:519)
at java.net.Socket.connect(Socket.java:469)
at sun.net.NetworkClient.doConnect(NetworkClient.java:157)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:394)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:529)
at sun.net.www.http.HttpClient.(HttpClient.java:233)
at sun.net.www.http.HttpClient.New(HttpClient.java:306)
at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:795)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:743)
at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:654)
at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:832)
at de.mud.jta.plugin.Capture.saveFile(Capture.java:339)
at de.mud.jta.plugin.Capture.access0(Capture.java:83)
at de.mud.jta.plugin.Capture.actionPerformed(Capture.java:173)
at de.mud.jta.plugin.Capture.actionPerformed(Capture.java:266)
I am trying this on my local network, so no issue of firewall..
Can anyone help?
我正在我的本地网络上尝试这个，所以没有防火墙问题..
有人可以帮忙吗？
krunal patel
克鲁纳尔帕特尔
回答by Rangappa Tungal
i got some thing some net, how to add proxy , when i tried this i am not getting Setting in project, configure so.. so please let me know how to do this.. see below for how to do this..
我得到了一些网络，如何添加代理，当我尝试这个时，我没有在项目中设置，这样配置..所以请让我知道如何做到这一点......请参阅下文了解如何做到这一点..
Configure it in the project Settings, tab Configurations, edit current Default profile, tab Server, add proxy settings to the 'Extra JVM parameters', for example add:
在项目设置中配置它，选项卡配置，编辑当前默认配置文件，选项卡服务器，将代理设置添加到“额外的 JVM 参数”，例如添加：
-Dhttp.proxyHost=myproxyserver.com -Dhttp.proxyPort=80
-Dhttp.proxyHost=myproxyserver.com -Dhttp.proxyPort=80
回答by Rohit
The address that you are connecting should exist. e.g. if you are opening a connection to localhost on port 8080, then there should be a server listening on that port.
您要连接的地址应该存在。例如，如果您在端口 8080 上打开到 localhost 的连接，那么应该有一个服务器在该端口上侦听。
回答by Dominik Rockenschaub
maybe a firewall problem? check if you can reach the url through telnet by using: telnet url 80
也许是防火墙问题？使用以下命令检查是否可以通过 telnet 访问 url：telnet url 80
