1：Tomcat（或其他Web容器）启动时控制台报错如下示：
2007-8-2 15:20:43 org.apache.coyote.http11.Http11Protocol init
严重: Error initializing endpoint
java.net.BindException: Address already in use: JVM_Bind:8080
2007-8-2 15:20:43 org.apache.catalina.startup.Catalina load
严重: Catalina.start
LifecycleException: Protocol handler initialization failed: java.net.BindException: Address already in use: JVM_Bind:80
2007-8-2 15:20:46 org.apache.coyote.http11.Http11Protocol start
严重: Error starting endpointjava.net.BindException: Address already in use: JVM_Bind:80
2007-8-2 15:20:46 org.apache.catalina.startup.Catalina start
严重: Catalina.start:
LifecycleException: Protocol handler start failed: java.net.BindException: Address already in use: JVM_Bind:8080
2007-8-2 15:20:46 org.apache.catalina.startup.Catalina start
信息: Server startup in 2922 ms
这说明80端口(该端口是Tomcat的监听端口)已经被其他程序占用,先用命令提示符 " netstat -ano " 命令显示端口状态，再在结果中找到端口，然后根据其 PID 在输入 “ tasklist ” 命令显示中查找其对应程序，就可知道其程序名，进而查明程序的来源，采取适当的措施。