模拟java.net.ConnectException:连接超时
模拟java.net.ConnectException:连接超时
提问于 2015-07-09 17:44:53
我想在我的java应用程序中人为地创建一个连接超时来测试我的连接超时处理。我已经看过这个线程Artificially create a connection timeout error了。
但是，当我尝试执行建议的操作时，比如http://10.255.255.1或http://www.google.com:81，我用来进行http调用的库(Apache http client3.1)会给我一个连接被拒绝的异常，而不是超时。
[9/07/15 19:28:45:000 EST] 00000088 SystemErr R IOException Connection refused: connect
[9/07/15 19:28:46:188 EST] 00000088 SystemErr R java.net.ConnectException: Connection refused: connect
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:336)
at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:201)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:188)
at java.net.Socket.connect(Socket.java:478)
at sun.reflect.GeneratedMethodAccessor187.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java(Compiled Code))
at java.lang.reflect.Method.invoke(Method.java(Compiled Code))
at org.apache.commons.httpclient.protocol.ReflectionSocketFactory.createSocket(ReflectionSocketFactory.java:140)
at org.apache.commons.httpclient.protocol.DefaultProtocolSocketFactory.createSocket(DefaultProtocolSocketFactory.java:125)
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)有人可以建议我可以调整什么或不同的建议，以允许我测试连接超时吗？
编辑
这是我正在尝试测试的代码...
HttpClient client = new HttpClient();
HttpConnectionManagerParams httpConnectionManagerParams = client.getHttpConnectionManager().getParams();
httpConnectionManagerParams.setConnectionTimeout(45000);
httpConnectionManagerParams.setSoTimeout(45000);
httpConnectionManagerParams.setTcpNoDelay(false);
// Create a method instance.
GetMethod method = new GetMethod(url);
HttpMethodParams httpMethodParams = method.getParams();
// no retries
httpMethodParams.setParameter(
HttpMethodParams.RETRY_HANDLER,
new DefaultHttpMethodRetryHandler(0, false));
httpMethodParams.setSoTimeout(45000);
try {
// Execute the method.
int statusCode = client.executeMethod(method);
// Read the response body.
byte[] responseBody = method.getResponseBody();
jsonResponse = new String(
new String(responseBody).getBytes(JsonConstants.DEFAULT_CHARSET), JsonConstants.DEFAULT_CHARSET);
} catch (HttpException e) {
System.err.println("HttpException " + e.getMessage());
e.printStackTrace();
} catch (IOException e) {
System.err.println("IOException " + e.getMessage());
e.printStackTrace();
} finally {
// Release the connection.
method.releaseConnection();
}谢谢
回答 1
Stack Overflow用户
回答已采纳
发布于 2015-07-09 19:27:18
为什么不使用模拟测试呢？我想它是目前最好的模拟工具之一：JMockit。例如，您可以模拟HttpClient类并抛出connectionTimeOutException (或者测试代码所真正需要的任何东西)。
我仍然不清楚，当超时发生时会发生什么，从你发送的代码。它会抛出异常吗？当它发生时，您的代码如何识别它？
请看一下。如果你需要更多的帮助，给我一个呼喊=]
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原文链接：
https://stackoverflow.com/questions/31313881
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