Tomcat启动报错：java.net.BindException: Permission denied <null>:80

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Tomcat 启动报错：Java.net.BindException: Permission denied:80

1，启动报错显示

[org.springframework.web.servlet.DispatcherServlet]FrameworkServlet 'springMvc': initialization completed in 382 ms
Jun 01, 2015 6:39:06 PM org.apache.coyote.http11.Http11Protocol start
SEVERE: Error starting endpoint
java.net.BindException: Permission denied <null>:80
    at org.apache.tomcat.util.net.JIoEndpoint.init(JIoEndpoint.java:549)
    at org.apache.tomcat.util.net.JIoEndpoint.start(JIoEndpoint.java:565)
    at org.apache.coyote.http11.Http11Protocol.start(Http11Protocol.java:207)
    at org.apache.catalina.connector.Connector.start(Connector.java:1196)
    at org.apache.catalina.core.StandardService.start(StandardService.java:540)
    at org.apache.catalina.core.StandardServer.start(StandardServer.java:754)
    at org.apache.catalina.startup.Catalina.start(Catalina.java:595)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:601)
    at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)
Caused by: java.net.BindException: Permission denied
    at java.net.PlainSocketImpl.socketBind(Native Method)
    at java.net.AbstractPlainSocketImpl.bind(AbstractPlainSocketImpl.java:376)
    at java.net.ServerSocket.bind(ServerSocket.java:376)
    at java.net.ServerSocket.<init>(ServerSocket.java:237)
    at java.net.ServerSocket.<init>(ServerSocket.java:181)
    at org.apache.tomcat.util.net.DefaultServerSocketFactory.createSocket(DefaultServerSocketFactory.java:50)
    at org.apache.tomcat.util.net.JIoEndpoint.init(JIoEndpoint.java:538)
    ... 12 more

Jun 01, 2015 6:39:06 PM org.apache.catalina.core.StandardService start
SEVERE: Failed to start connector [Connector[HTTP/1.1-80]]
LifecycleException:  service.getName(): "Catalina";  Protocol handler start failed: java.net.BindException: Permission denied <null>:80
    at org.apache.catalina.connector.Connector.start(Connector.java:1203)
    at org.apache.catalina.core.StandardService.start(StandardService.java:540)
    at org.apache.catalina.core.StandardServer.start(StandardServer.java:754)
    at org.apache.catalina.startup.Catalina.start(Catalina.java:595)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:601)
    at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)

Jun 01, 2015 6:39:06 PM org.apache.jk.common.ChannelSocket init
INFO: JK: ajp13 listening on /0.0.0.0:9109
Jun 01, 2015 6:39:06 PM org.apache.jk.server.JkMain start
INFO: Jk running ID=0 time=0/17  config=null
Jun 01, 2015 6:39:06 PM org.apache.catalina.startup.Catalina start
INFO: Server startup in 6868 ms

问题分析：在 SUSE 上只有 root 用户才可以访问 1024 以下的端口号，其余用户不能访问。

2，解决方案

2.1，修改 Tomcat 的 server.xml 配置文件，将端口修改为 8081（或者其他 1024 以上的端口号，不能与本机上的其它 Tomcat 端口冲突）

[root@tomcat57conf]# vim /usr/local/app/apache-tomcat-6.0.37_hechuang_lib/conf/server.xml
    <Connector port="8081" protocol="HTTP/1.1" 
               connectionTimeout="30000" 
               maxThreads="2000"
               acceptCount="2000"
               URIEncoding="UTF-8"
               redirectPort="9143" />
    <!-- A "Connector" using the shared thread pool-->

2.2，然后使用 root 用户登录服务器，执行端口重定向命令：iptables -t nat -A PREROUTING -p tcp –dport 80 -j REDIRECT –to-port 8081。

意思就是当访问 80 端口时重定向到 8081 端口，这样，我们可以改成任何我们需要的端口啦。

[root@tomcat57conf]# iptables -t nat -A PREROUTING -p tcp --dport 80 -j REDIRECT --to-port 8081
[root@tomcat57conf]#

2.3，切换到 tomcat 账号，启动 tomcat 服务

就可以正常访问了：

INFO: Deploying web application directory databox
[org.springframework.web.context.ContextLoader]Root WebApplicationContext: initialization started
[org.springframework.web.context.support.XmlWebApplicationContext]Refreshing Root WebApplicationContext: startup date [Mon Jun 01 18:42:44 CST 2015]; root of context hierarchy
[org.springframework.beans.factory.xml.XmlBeanDefinitionReader]Loading XML bean definitions from class path resource [spring.xml]
[org.springframework.beans.factory.xml.XmlBeanDefinitionReader]Loading XML bean definitions from class path resource [spring-mybatis.xml]
[org.springframework.beans.factory.config.PropertyPlaceholderConfigurer]Loading properties file from class path resource [config.properties]
[org.springframework.beans.factory.support.DefaultListableBeanFactory]Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@71d7c3ff: defining beans [org.springframework.beans.factory.config.PropertyPlaceholderConfigurer#0,receiptService,posmonitorService,org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalRequiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,dataSource,sqlSessionFactory,org.mybatis.spring.mapper.MapperScannerConfigurer#0,transactionManager,transactionAdvice,org.springframework.aop.config.internalAutoProxyCreator,transactionPointcut,org.springframework.aop.support.DefaultBeanFactoryPointcutAdvisor#0,org.springframework.context.annotation.ConfigurationClassPostProcessor.importAwareProcessor,receiptMapper,posMonitorLogsMapper]; root of factory hierarchy
[com.alibaba.druid.pool.DruidAbstractDataSource]maxIdle is deprecated
[com.alibaba.druid.pool.DruidDataSource]{dataSource-1} inited
[org.springframework.web.context.ContextLoader]Root WebApplicationContext: initialization completed in 1433 ms
[org.springframework.web.servlet.DispatcherServlet]FrameworkServlet 'springMvc': initialization started
[org.springframework.web.context.support.XmlWebApplicationContext]Refreshing WebApplicationContext for namespace 'springMvc-servlet': startup date [Mon Jun 01 18:42:45 CST 2015]; parent: Root WebApplicationContext
[org.springframework.beans.factory.xml.XmlBeanDefinitionReader]Loading XML bean definitions from class path resource [spring-mvc.xml]
[org.springframework.beans.factory.support.DefaultListableBeanFactory]Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@5d4ee178: defining beans [receiptController,org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalRequiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,mappingJacksonHttpMessageConverter,org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter#0,org.springframework.web.servlet.view.InternalResourceViewResolver#0,multipartResolver,org.springframework.context.annotation.ConfigurationClassPostProcessor.importAwareProcessor]; parent: org.springframework.beans.factory.support.DefaultListableBeanFactory@71d7c3ff
[org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping]Mapped URL path [/receiptController/receiveReceiptData] onto handler 'receiptController'
[org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping]Mapped URL path [/receiptController/receiveReceiptData.*] onto handler 'receiptController'
[org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping]Mapped URL path [/receiptController/receiveReceiptData/] onto handler 'receiptController'
[org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping]Mapped URL path [/receiptController/receivePosInfoData] onto handler 'receiptController'
[org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping]Mapped URL path [/receiptController/receivePosInfoData.*] onto handler 'receiptController'
[org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping]Mapped URL path [/receiptController/receivePosInfoData/] onto handler 'receiptController'
[org.springframework.web.servlet.DispatcherServlet]FrameworkServlet 'springMvc': initialization completed in 377 ms
Jun 01, 2015 6:42:45 PM org.apache.coyote.http11.Http11Protocol start
INFO: Starting Coyote HTTP/1.1 on http-8081
Jun 01, 2015 6:42:45 PM org.apache.jk.common.ChannelSocket init
INFO: JK: ajp13 listening on /0.0.0.0:9109
Jun 01, 2015 6:42:45 PM org.apache.jk.server.JkMain start
INFO: Jk running ID=0 time=0/16  config=null
Jun 01, 2015 6:42:45 PM org.apache.catalina.startup.Catalina start
INFO: Server startup in 6827 ms
^C