Question

我在客户机上安装了Apache服务器（Tomcat 7.63）（Window 7系统32位），客户机中使用的Java版本是（JDK 1.8 update 60）

问题

通过运行文件（... \ bin \ Tomcat7.exe）启动Tomcat服务器。但是当我尝试打开主页（http://localhost:8080/）时，它不会出现在浏览器上，我可以在Apache日志中看到以下异常：

org.apache.coyote.AbstractProtocol$AbstractConnectionHandler process
SEVERE: Error reading request, ignored
java.lang.ExceptionInInitializerError
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at sun.nio.cs.AbstractCharsetProvider.lookup(Unknown Source)
at sun.nio.cs.AbstractCharsetProvider.access$000(Unknown Source)
at sun.nio.cs.AbstractCharsetProvider$1.next(Unknown Source)
at sun.nio.cs.AbstractCharsetProvider$1.next(Unknown Source)
at java.nio.charset.Charset.put(Unknown Source)
at java.nio.charset.Charset.access$200(Unknown Source)
at java.nio.charset.Charset$3.run(Unknown Source)
at java.nio.charset.Charset$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.nio.charset.Charset.availableCharsets(Unknown Source)
at org.apache.tomcat.util.buf.B2CConverter.<clinit>(B2CConverter.java:51
)
at org.apache.tomcat.util.buf.ByteChunk.<clinit>(ByteChunk.java:102)
at org.apache.tomcat.util.buf.MessageBytes.<init>(MessageBytes.java:58)
at org.apache.tomcat.util.buf.MessageBytes.<init>(MessageBytes.java:36)
at org.apache.tomcat.util.buf.MessageBytes$MessageBytesFactory.newInstan
ce(MessageBytes.java:685)
at org.apache.tomcat.util.buf.MessageBytes.newInstance(MessageBytes.java
:78)
at org.apache.coyote.Request.<init>(Request.java:83)
at org.apache.coyote.AbstractProcessor.<init>(AbstractProcessor.java:61)

at org.apache.coyote.http11.AbstractHttp11Processor.<init>(AbstractHttp1
1Processor.java:273)
at org.apache.coyote.http11.Http11Processor.<init>(Http11Processor.java:
56)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.creat
eProcessor(Http11Protocol.java:165)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.creat
eProcessor(Http11Protocol.java:103)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(
AbstractProtocol.java:586)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoin
t.java:316)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskTh
read.java:61)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.NullPointerException
at sun.nio.cs.CharsetMapping.load(Unknown Source)
at sun.nio.cs.CharsetMapping$1.run(Unknown Source)
at sun.nio.cs.CharsetMapping$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at sun.nio.cs.CharsetMapping.get(Unknown Source)
at sun.nio.cs.ext.SJIS_0213$1.run(Unknown Source)
at sun.nio.cs.ext.SJIS_0213$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at sun.nio.cs.ext.SJIS_0213.<clinit>(Unknown Source)
... 30 more

Exception in thread "http-bio-8085-exec-1" java.lang.NullPointerException
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(
AbstractProtocol.java:731)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoin
t.java:316)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskTh
read.java:61)
at java.lang.Thread.run(Unknown Source)

如果我从管理员帐户从服务管理控制台启动Apache服务器，那么我真的很奇怪：管理工具 - ＆gt;服务，它工作正常，我可以看到主页（http://localhost:8080/）即将在浏览器上。

问题

如果我们使用.exe文件（... \ bin \ Tomcat7.exe）运行Apache服务器，为什么不会出现Apache主页？如果服务器开始使用Windows服务，为什么主页会出现？在这两种情况下，执行相同的.exe文件来运行服务器，这两种情况有什么区别？

Answer 1

直接使用exe无法启动Tomcat（除非提供了正确的参数），如果您想这样做，则应使用其中一个包含的.bat文件：startup.bat

请务必定义您的环境变量，例如JAVA_HOME和/或JRE_HOME

Apache Tomcat主页未来

1 个答案: