我无法在端口80上启动应用程序。
我已经在本地计算机(使用IDE和本地服务器)上尝试过,没有运气。
我检查了其他类似的帖子,并确保我在具有root用户的服务器上运行jar。
这是错误:
till here all ok
...
java.net.SocketException: Permission denied
at sun.nio.ch.Net.bind0(Native Method)
at sun.nio.ch.Net.bind(Net.java:433)
at sun.nio.ch.Net.bind(Net.java:425)
at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:223)
at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74)
at org.apache.tomcat.util.net.NioEndpoint.bind(NioEndpoint.java:338)
at org.apache.tomcat.util.net.AbstractEndpoint.start(AbstractEndpoint.java:760)
at org.apache.coyote.AbstractProtocol.start(AbstractProtocol.java:472)
at org.apache.catalina.connector.Connector.startInternal(Connector.java:986)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.StandardService.addConnector(StandardService.java:237)
at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.addPreviouslyRemovedConnectors(TomcatEmbeddedServletContainer.java:186)
at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.start(TomcatEmbeddedServletContainer.java:149)
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.startEmbeddedServletContainer(EmbeddedWebApplicationContext.java:288)
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.finishRefresh(EmbeddedWebApplicationContext.java:141)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:483)
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:118)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:686)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:320)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:957)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:946)
at com.andirod.StartApplication.main(StartApplication.java:20)
...
...
...
Exception in thread "main" java.lang.IllegalStateException: Tomcat connector in failed state
at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.start(TomcatEmbeddedServletContainer.java:157)
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.startEmbeddedServletContainer(EmbeddedWebApplicationContext.java:288)
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.finishRefresh(EmbeddedWebApplicationContext.java:141)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:483)
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:118)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:686)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:320)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:957)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:946)
at com.andirod.StartApplication.main(StartApplication.java:20)
在Linux上,只能由root用户打开低于1024的端口,因此默认情况下限制端口80
如果要在80端口上发布应用,则需要将请求从80端口重定向到要运行springapp(例如8080)端口的端口
您可以使用默认情况下允许在端口80上运行的Apache2服务器,并且可以将对您的请求转发到Tomcat
Debian的示例配置
sudo apt-get install apache2
a2enmod proxy
a2enmod proxy_http
cd /etc/apache2/sites-enabled
sudo nano 000-default.conf
编辑文件:
<VIRTUALHOST *:80>
ProxyPreserveHost On
# ...
ProxyPass / http://localhost:8080/
</VIRTUALHOST>
保存文件:Ctrl+ O,ENTER,Ctrl+X
注意:要了解有关虚拟主机配置的更多信息,您可以通过单击此处查看关于该主题的详细Apache手册。
重新启动Apache2以应用更改:
sudo service apache2 restart
或者
sudo systemctl restart apache2
使用iptables进行重定向
iptables -t nat -A PREROUTING -p tcp --dport 80 -j REDIRECT --to-ports 8080
如果您需要使用本地主机,也添加此
iptables -t nat -I OUTPUT -p tcp -d 127.0.0.1 --dport 80 -j REDIRECT --to-ports 8080
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