java.lang.UnsatisfiedLinkError: C:\apache-tomcat-8.0.21\bin\tcnative-1.dll: Can't load IA 32-bit .dll on a AMD 64-bit platform
Tomcat启动报错：
25-Mar-2016 10:40:43.478 SEVERE [main] org.apache.catalina.startup.Catalina.stopServer Could not contact localhost:8015. Tomcat may not be running.
25-Mar-2016 10:40:43.478 SEVERE [main] org.apache.catalina.startup.Catalina.stopServer Catalina.stop:
java.net.ConnectException: Connection refused: connect
at java.net.DualStackPlainSocketImpl.connect0(Native Method)
at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:79)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:345)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:589)
at java.net.Socket.connect(Socket.java:538)
at java.net.Socket.<init>(Socket.java:434)
at java.net.Socket.<init>(Socket.java:211)
at org.apache.catalina.startup.Catalina.stopServer(Catalina.java:450)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.apache.catalina.startup.Bootstrap.stopServer(Bootstrap.java:400)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:487)
25-Mar-2016 10:40:45.775 WARNING [main] org.apache.catalina.core.AprLifecycleListener.init The APR based Apache Tomcat Native library failed to load. The error reported was [C:\apache-tomcat-8.0.21\bin\tcnative-1.dll: Can't load IA 32-bit .dll on a AMD 64-bit platform]
java.lang.UnsatisfiedLinkError: C:\apache-tomcat-8.0.21\bin\tcnative-1.dll: Can't load IA 32-bit .dll on a AMD 64-bit platform
at java.lang.ClassLoader$NativeLibrary.load(Native Method)
at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1937)
at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1855)
at java.lang.Runtime.loadLibrary0(Runtime.java:870)
at java.lang.System.loadLibrary(System.java:1122)
at org.apache.tomcat.jni.Library.<init>(Library.java:42)
at org.apache.tomcat.jni.Library.initialize(Library.java:171)
at org.apache.catalina.core.AprLifecycleListener.init(AprLifecycleListener.java:197)
at org.apache.catalina.core.AprLifecycleListener.isAprAvailable(AprLifecycleListener.java:106)
at org.apache.catalina.connector.Connector.setProtocol(Connector.java:564)
at org.apache.catalina.connector.Connector.<init>(Connector.java:66)
at org.apache.catalina.startup.ConnectorCreateRule.begin(ConnectorCreateRule.java:62)
at org.apache.tomcat.util.digester.Digester.startElement(Digester.java:1184)
at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(AbstractSAXParser.java:509)
at com.sun.org.apache.xerces.internal.parsers.AbstractXMLDocumentParser.emptyElement(AbstractXMLDocumentParser.java:182)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanStartElement(XMLDocumentFragmentScannerImpl.java:1343)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:2786)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:606)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:510)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:848)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:777)
at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:141)
at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1213)
at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:649)
at org.apache.tomcat.util.digester.Digester.parse(Digester.java:1457)
at org.apache.catalina.startup.Catalina.load(Catalina.java:551)
at org.apache.catalina.startup.Catalina.load(Catalina.java:599)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.apache.catalina.startup.Bootstrap.load(Bootstrap.java:310)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:484)
原因，显然是 64位 的 Jdk 和 32 位的 tomcat 不兼容。