Jetty：HTTP错误：503 /服务不可用

Question

我是Jetty的新手，我试图在这里运行示例程序“ http://www.codeproject.com/Articles/128145/Run-Jetty-Web-Server-Within-Your-Application ”但是我收到了错误消息我的页面“ http：// localhost：8585 / runJetty / ”

"HTTP ERROR: 503
Problem accessing /runJetty/. Reason: 
    Service Unavailable
--------------------------------------------------------------------------------
Powered by Jetty:// "

我从eclipse得到的错误日志：

2012-04-20 11:14:32.522:INFO:oejs.Server:jetty-8.1.3.v20120416
2012-04-20 11:14:32.617:WARN:oejx.XmlParser:FATAL@file:/C:/Users/***/workspace/Test/WEB-INF/web.xml line:1 col:7 : org.xml.sax.SAXParseException: The processing instruction target matching "[xX][mM][lL]" is not allowed.
2012-04-20 11:14:32.617:WARN:oejw.WebAppContext:Failed startup of context o.e.j.w.WebAppContext{/runJetty,file:/C:/Users/***/workspace/Test/}
org.xml.sax.SAXParseException: The processing instruction target matching "[xX][mM][lL]" is not allowed.
at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(Unknown Source)
at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.fatalError(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLScanner.reportFatalError(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLScanner.scanPIData(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanPIData(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLScanner.scanPI(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$PrologDriver.next(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source)
at javax.xml.parsers.SAXParser.parse(Unknown Source)
at org.eclipse.jetty.xml.XmlParser.parse(XmlParser.java:199)
at org.eclipse.jetty.xml.XmlParser.parse(XmlParser.java:215)
at org.eclipse.jetty.webapp.Descriptor.parse(Descriptor.java:60)
at org.eclipse.jetty.webapp.WebDescriptor.parse(WebDescriptor.java:143)
at org.eclipse.jetty.webapp.MetaData.setWebXml(MetaData.java:165)
at org.eclipse.jetty.webapp.WebXmlConfiguration.preConfigure(WebXmlConfiguration.java:55)
at org.eclipse.jetty.webapp.WebAppContext.preConfigure(WebAppContext.java:417)
at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:453)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:59)
at org.eclipse.jetty.server.handler.HandlerCollection.doStart(HandlerCollection.java:224)
at org.eclipse.jetty.server.handler.ContextHandlerCollection.doStart(ContextHandlerCollection.java:167)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:59)
at org.eclipse.jetty.server.handler.HandlerWrapper.doStart(HandlerWrapper.java:90)
at org.eclipse.jetty.server.Server.doStart(Server.java:262)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:59)
at blog.runjetty.server.JettyServer.start(JettyServer.java:22)
at blog.runjetty.ui.listener.ServerStartStopActionListner.actionPerformed(ServerStartStopActionListner.java:38)
at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
at java.awt.Component.processMouseEvent(Unknown Source)
at javax.swing.JComponent.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$000(Unknown Source)
at java.awt.EventQueue$1.run(Unknown Source)
at java.awt.EventQueue$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown Source)
at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue$2.run(Unknown Source)
at java.awt.EventQueue$2.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)
2012-04-20 11:14:32.648:INFO:oejs.AbstractConnector:Started SelectChannelConnector@0.0.0.0:8585

我的xml文件

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee 
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd" 
version="2.4">
    <welcome-file-list>
        <welcome-file>page/index.jsp</welcome-file> 
    </welcome-file-list>
</web-app> 

我的JSP文件

<%@ page language="java" contentType="text/html; charset=ISO-8859-1 pageEncoding="ISO-8859-1"%> 
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01     Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html> 
    <head> 
        <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
        <title>Embedding Jetty</title>
    </head>
    <body>
        <h2>Running Jetty web server from our application!!</h2>
    </body>
</html>  

Answer 1

2012-04-20 11：14：32.617：警告：oejx.XmlParser：FATAL @ file：/ C：/ Users / *** / workspace / Test / WEB-INF / web.xml line：1 col：7：org .xml.sax.SAXParseException：不允许匹配“[xX] [mM] [lL]”的处理指令目标。

You Log说，你的web.xml格式不正确。 第1行，第7列。它可以是UTF-8 字节顺序标记

尝试验证您的xml是否格式良好且没有BOM。 Java不使用BOM。

Answer 2

实际上，我解决了这个问题。 我通过eclipse jetty插件运行它。

1. 我的eclipse中没有JDK lib，这就是为什么消息一直显示我需要安装完整的JDK，这才是主要原因。

2. 我安装了两个版本的jetty插件，它是jetty7和jetty8。 我认为他们互相冲突，所以我删除了jetty7，它的工作原理！

Answer 3

这些答案都不适合我。

我不得不删除所有已部署的Java Web应用程序：

• Windows /显示视图/其他...
• 转到Server文件夹并选择“Servers”
• 在localhost上右键单击J2EE Preview
• 单击以添加和删除...单击全部删除

然后在服务器上运行该项目

错误消失了！

您必须在部署另一个项目之前停止服务器，因为服务器将找不到它。 否则您将收到404错误

Answer 4

我有同样的问题。 我通过从xml文件中删除换行符来解决它。 我做到了

<operationBindings>
    <OperationBinding>
        <operationType>update</operationType>
        <operationId>makePdf</operationId>
        <serverObject>
            <className>com.myclass</className>
            <lookupStyle>new</lookupStyle>
        </serverObject>
        <serverMethod>makePdf</serverMethod>
    </OperationBinding>
</operationBindings>

代替 ...

<serverObject>
            <className>com.myclass
</className>
            <lookupStyle>new</lookupStyle>
</serverObject>

Answer 5

从工作区中删除/删除项目。 并将项目重新导入工作区。 这种方法对我有用。

Answer 6

学习servlet vs swing会有所帮助。 从swing api获取数据：

@POST
@Path(“/e”)
@Produces(MediaType.APPLICATION_JSON)
@Consumes(MediaType.APPLICATION_JSON)

public Response api1(String requestJson, public Response api1(String requestJson,                                  @Context HttpHeaders httpHeaders)

{

String h1 = httpHeaders.getHeaderString(“h1”);

switch (h1) {

case “1”: {

if (h1 != null) {

if (validateJsonSyntax(requestJson)) {

ObjectMapper objectMapper = new ObjectMapper();                                try {

Object1 obj = objectMapper.readValue(requestJson, json1.class);        return Response.status(Response.Status.ACCEPTED).build();                                }

catch (Exception e) {

return Response.status(Response.Status.BAD_REQUEST).build();                                }

}

}
}
break;

default:            {            }            break;
}        return Response.status(Response.Status.BAD_REQUEST).build();

}

从HttpServet处理程序获取数据：

public class c1 extends HttpServlet {

@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {

//super.doPost(request, response);

String h1 = request.getHeader(“h1”);
String h2 = request.getHeader(“h2”);

switch (h1) {

case “one”: {

if (h2 != null) {
InputStream inStrReqBody = request.getInputStream();
if (inStrReqBody != null) {
String strReqBody = IOUtils.toString(inStrReqBody,
request.getCharacterEncoding());
if (validateJsonSyntax(strReqBody)) {
ObjectMapper objectMapper = new ObjectMapper();
try {
Object1 obj1 = objectMapper.readValue(strReqBody, VNFCatalogResponse.class);
response.setStatus(HttpServletResponse.SC_ACCEPTED);
} catch (Exception e) {
\
response.setStatus(HttpServletResponse.SC_BAD_REQUEST);

}
}
}
}
}

}
}

有关详细信息， 请访问http://writeulearn.com/jetty-handler-swing-handler-differences/