Java Jetty服务器总是返回404和处理程序
我正在处理一个项目,我正在尝试创建一个服务器,在端口8082的本地主机地址中侦听(我已经为另一台服务器保留了8081) 这是ComponentHTTPServerUtility类:Java Jetty服务器总是返回404和处理程序,java,http,jetty,Java,Http,Jetty,我正在处理一个项目,我正在尝试创建一个服务器,在端口8082的本地主机地址中侦听(我已经为另一台服务器保留了8081) 这是ComponentHTTPServerUtility类: import java.net.InetAddress; import java.net.InetSocketAddress; import java.net.UnknownHostException; import org.eclipse.jetty.server.Server; import org.eclips
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.UnknownHostException;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.server.handler.AbstractHandler;
public class ComponentHTTPServerUtility {
/**
* Creates a server on the port and blocks the calling thread
* @param port
* @param handler
* @return
*/
public static boolean createServer(int port, AbstractHandler handler) {
Server server = new Server(port);
if (handler != null) {
server.setHandler(handler);
}
try {
server.start();
server.join();
} catch (Exception ex) {
ex.printStackTrace();
}
return true;
}
/**
* Creates a server on the InetAddress and blocks the calling thread
* @param ipAddress
* @param port
* @param handler
* @return
*/
public static boolean createServer(String ipAddress, int port,
AbstractHandler handler) {
InetAddress inetIpAddress;
InetSocketAddress address;
Server server;
if (ipAddress == null)
return false;
try {
inetIpAddress = InetAddress.getByName(ipAddress);
address = new InetSocketAddress(inetIpAddress, port);
} catch (UnknownHostException ex) {
ex.printStackTrace();
return false;
}
server = new Server(address);
if (handler != null) {
server.setHandler(handler);
}
try {
server.start();
server.join();
} catch (Exception ex) {
ex.printStackTrace();
}
return true;
}
}
运行服务器时,控制台中会显示以下消息:
2015-01-19 13:13:49.451:INFO:oejs.Server:jetty-8.1.13.v20130916
2015-01-19 13:13:49.501:INFO:oejs.AbstractConnector:Started SelectChannelConnector@0.0.0.0:8082
但如果我使用浏览器:
我得到错误404。但是,如果对另一台服务器(端口8081)执行相同的操作,则会得到一个空白页,指示服务器正在运行
对不起,我不能谈得更具体些。如有任何想法或建议,将不胜感激。这件事我已经做了好几个小时了
谢谢
编辑:
以下是我在插入该行后得到的两台服务器的结果:
System.err.println(server.dump())
工作一:
2015-01-19 15:37:05.600:INFO:oejs.Server:jetty-8.1.13.v20130916
2015-01-19 15:37:05.651:INFO:oejs.AbstractConnector:Started SelectChannelConnector@0.0.0.0:8081
org.eclipse.jetty.server.Server@2090b38d - STARTED
+- com.project.server.Class1HTTPMessageHandler@35f3198f - STARTED
|
+- qtp831407528{8<=6<=8/254,0} - STARTED
| +- 10 qtp831407528-10 TIMED_WAITING @ sun.misc.Unsafe.park(Native Method) IDLE
| +- 11 qtp831407528-11 TIMED_WAITING @ sun.misc.Unsafe.park(Native Method) IDLE
| +- 12 qtp831407528-12 TIMED_WAITING @ sun.misc.Unsafe.park(Native Method) IDLE
| +- 13 qtp831407528-13 TIMED_WAITING @ sun.misc.Unsafe.park(Native Method) IDLE
| +- 14 qtp831407528-14 Acceptor0 SelectChannelConnector@0.0.0.0:8081 RUNNABLE @ sun.nio.ch.ServerSocketChannelImpl.accept0(Native Method)
| +- 15 qtp831407528-15 Selector0 RUNNABLE @ sun.nio.ch.WindowsSelectorImpl$SubSelector.poll0(Native Method)
| +- 16 qtp831407528-16 TIMED_WAITING @ sun.misc.Unsafe.park(Native Method) IDLE
| +- 17 qtp831407528-17 TIMED_WAITING @ sun.misc.Unsafe.park(Native Method) IDLE
|
+- SelectChannelConnector@0.0.0.0:8081 - STARTED
+- PooledBuffers [0/1024@6144,0/1024@16384,0/1024@-]/PooledBuffers [0/1024@6144,0/1024@32768,0/1024@-] - STARTED
+- org.eclipse.jetty.server.nio.SelectChannelConnector$ConnectorSelectorManager@42557280 - STARTED
| +- org.eclipse.jetty.io.nio.SelectorManager$SelectSet@77d05385 keys=0 selected=0 id=0
| +- org.eclipse.jetty.io.nio.SelectorManager$SelectSet.doSelect(SelectorManager.java:569)
| +- sun.nio.ch.WindowsSelectorImpl@4611dca9 keys=0
+- sun.nio.ch.ServerSocketChannelImpl[/0:0:0:0:0:0:0:0:8081]
+- qtp831407528{8<=6<=8/254,0} - STARTED
2015-01-19 15:37:23.231:INFO:oejs.Server:jetty-8.1.13.v20130916
2015-01-19 15:37:23.280:INFO:oejs.AbstractConnector:Started SelectChannelConnector@0.0.0.0:8082
org.eclipse.jetty.server.Server@183c97db - STARTED
+- com.project.server.Class2HTTPMessageHandler@33767f84 - STARTED
|
+- qtp597321988{8<=6<=8/254,0} - STARTED
| +- 10 qtp597321988-10 Selector0 RUNNABLE @ sun.nio.ch.WindowsSelectorImpl$SubSelector.poll0(Native Method)
| +- 11 qtp597321988-11 TIMED_WAITING @ sun.misc.Unsafe.park(Native Method) IDLE
| +- 12 qtp597321988-12 TIMED_WAITING @ sun.misc.Unsafe.park(Native Method) IDLE
| +- 13 qtp597321988-13 TIMED_WAITING @ sun.misc.Unsafe.park(Native Method) IDLE
| +- 14 qtp597321988-14 Acceptor0 SelectChannelConnector@0.0.0.0:8082 RUNNABLE @ sun.nio.ch.ServerSocketChannelImpl.accept0(Native Method)
| +- 15 qtp597321988-15 TIMED_WAITING @ sun.misc.Unsafe.park(Native Method) IDLE
| +- 16 qtp597321988-16 TIMED_WAITING @ sun.misc.Unsafe.park(Native Method) IDLE
| +- 17 qtp597321988-17 TIMED_WAITING @ sun.misc.Unsafe.park(Native Method) IDLE
|
+- SelectChannelConnector@0.0.0.0:8082 - STARTED
+- PooledBuffers [0/1024@6144,0/1024@16384,0/1024@-]/PooledBuffers [0/1024@6144,0/1024@32768,0/1024@-] - STARTED
+- org.eclipse.jetty.server.nio.SelectChannelConnector$ConnectorSelectorManager@7f39425c - STARTED
| +- org.eclipse.jetty.io.nio.SelectorManager$SelectSet@833e745 keys=0 selected=0 id=0
| +- org.eclipse.jetty.io.nio.SelectorManager$SelectSet.doSelect(SelectorManager.java:569)
| +- sun.nio.ch.WindowsSelectorImpl@32787e9f keys=0
+- sun.nio.ch.ServerSocketChannelImpl[/0:0:0:0:0:0:0:0:8082]
+- qtp597321988{8<=6<=8/254,0} - STARTED
我正在尝试向服务器发送一个消息标记,这是我得到的异常:
2015-01-19 18:16:43.739:WARN:oejs.AbstractHttpConnection:/MESSAGETAG
java.lang.NullPointerException
at com.project.business.Class2.functionFoo(Class2.java:98)
at com.project.server.Class2HTTPMessageHandler.handle(Class2HTTPMessageHandler.java:69)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)
at org.eclipse.jetty.server.Server.handle(Server.java:370)
at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:489)
at org.eclipse.jetty.server.AbstractHttpConnection.content(AbstractHttpConnection.java:960)
at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.content(AbstractHttpConnection.java:1021)
at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:865)
at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:240)
at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:82)
at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:668)
at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:52)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608)
at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:543)
at java.lang.Thread.run(Thread.java:745)
当使用处理程序时,您必须告诉服务器您的处理程序何时实际处理了请求 别忘了打电话 如果没有此调用,处理程序将完成,然后移动到下一个处理程序,在您的情况下,该处理程序将是返回404的默认处理程序 此外,在使用处理程序时,请使用处理程序提供的参数。
target
参数将具有提供的路径,如原始请求中所示
request.getRequestURI()
行为依赖于各种ServletContext
信息,因此不使用ServletContext
时不太可能得到预期的结果
注意:如果您实际上想要一个ServletContext
,那么也可以在嵌入式模式下使用ServletContextHandler
和real servlet来实现正常的servlet行为
然而,处理这种情况更容易。创建一个ContextHandler集合
,并通过ContextHandler
将您的每个处理程序设置到该集合中。看
例如:
ContextHandlerCollection contexts = new ContextHandlerCollection();
server.setHandler(contexts);
ContextHandler stock = new ContextHandler("/stock");
stock.setHandler(new Class2HTTPMessageHandler());
contexts.add(stock);
这样,您就可以跳过对请求的URI的整个检查,并让Jetty来处理
需要注意的是,即使是Jetty也使用
处理程序的target
参数来执行此上下文逻辑。在server.start()之后添加代码>行System.err.println(server.dump())编码>并报告结果。(很可能没有在服务器上设置处理程序)。还包括Class2HTTPMessageHandler
的源代码(因为有一些方法可以对处理程序进行编码,以使404仍然发生)@JoakimErdfelt刚刚添加了问题中的结果,看起来处理程序出现并启动了。(奇怪的是,第一个和第二个处理程序中有不同的处理程序)。处理程序实现做什么?您可以包含处理程序的源代码吗?(对声明以及各种请求操作的所有操作感兴趣,包括任何句柄(d | r)状态声明)@JoakimErdfelt我添加了尽可能多的声明以及发送messagetag时获得的体验。对我来说,它似乎仍然找不到服务器。非常感谢!我被困了两天!:Dyour welcome,刚刚修复了标题,使其更准确地描述了问题。是的,正如Joakim提到的,baseRequest.setHandled(true)必须在请求处理完成后从处理程序代码中完成。
2015-01-19 18:16:43.739:WARN:oejs.AbstractHttpConnection:/MESSAGETAG
java.lang.NullPointerException
at com.project.business.Class2.functionFoo(Class2.java:98)
at com.project.server.Class2HTTPMessageHandler.handle(Class2HTTPMessageHandler.java:69)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)
at org.eclipse.jetty.server.Server.handle(Server.java:370)
at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:489)
at org.eclipse.jetty.server.AbstractHttpConnection.content(AbstractHttpConnection.java:960)
at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.content(AbstractHttpConnection.java:1021)
at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:865)
at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:240)
at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:82)
at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:668)
at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:52)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608)
at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:543)
at java.lang.Thread.run(Thread.java:745)
ContextHandlerCollection contexts = new ContextHandlerCollection();
server.setHandler(contexts);
ContextHandler stock = new ContextHandler("/stock");
stock.setHandler(new Class2HTTPMessageHandler());
contexts.add(stock);