IDEA与eclipse在启动tomcat时的差异

蔚落 2022-06-06 02:18 212阅读 0赞

我写了一个测试程序，使用了spring web MVC框架：

import org.springframework.stereotype.Controller;
    import org.springframework.web.bind.annotation.ModelAttribute;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.ResponseBody;
     
    @Controller
    @RequestMapping("test")
    public class TestController {
    
        public TestController(){
            System.out.println(Thread.currentThread());
            new Exception().printStackTrace();
        }
    
    
        @RequestMapping(path = "hello.do")
        @ResponseBody
        public Result doHello() {
            String ret = "hi, baby";
    
            return new Result(1, "msg", ret);
        }
    
        @RequestMapping("ok.do")
        @ResponseBody
        public String doOK() {
            return "OK";
        }
    
        @RequestMapping(path = "reqt.do")
        @ResponseBody
        public Result doRequest(@ModelAttribute Entry entry) {
            String ret = "key=" + entry.getKey() + " : value=" + entry.getValue();
    
            return new Result(1, "msg", ret);
        }
    }

发现在IDEA与eclipse中打印的日志不同：

IDEA中：

Thread[RMI TCP Connection(3)-127.0.0.1,5,RMI Runtime]
    java.lang.Exception
    	at com.youku.ctrl.TestController.<init>(TestController.java:17)
    	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
    	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
    	at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:163)
    	at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:88)
    	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1223)
    	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1130)
    	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:545)
    	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:502)
    	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:312)
    	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
    	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:310)
    	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:200)
    	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:756)
    	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:868)
    	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:549)
    	at org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:676)
    	at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:642)
    	at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:690)
    	at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:558)
    	at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:499)
    	at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:172)
    	at javax.servlet.GenericServlet.init(GenericServlet.java:158)
    	at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1183)
    	at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1099)
    	at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:989)
    	at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4931)
    	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5241)
    	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    	at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:752)
    	at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:728)
    	at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:734)
    	at org.apache.catalina.startup.HostConfig.manageApp(HostConfig.java:1739)
    	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:498)
    	at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:300)
    	at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)
    	at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
    	at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:482)
    	at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:431)
    	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:498)
    	at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:300)
    	at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)
    	at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
    	at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1468)
    	at javax.management.remote.rmi.RMIConnectionImpl.access$300(RMIConnectionImpl.java:76)
    	at javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1309)
    	at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1401)
    	at javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:829)
    	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:498)
    	at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:357)
    	at sun.rmi.transport.Transport$1.run(Transport.java:200)
    	at sun.rmi.transport.Transport$1.run(Transport.java:197)
    	at java.security.AccessController.doPrivileged(Native Method)
    	at sun.rmi.transport.Transport.serviceCall(Transport.java:196)
    	at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:568)
    	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:826)
    	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:683)
    	at java.security.AccessController.doPrivileged(Native Method)
    	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:682)
    	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    	at java.lang.Thread.run(Thread.java:748)

eclipse中：

Thread[localhost-startStop-1,5,main]
    java.lang.Exception
    	at com.youku.ctrl.TestController.<init>(TestController.java:17)
    	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    	at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
    	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
    	at java.lang.reflect.Constructor.newInstance(Unknown Source)
    	at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:163)
    	at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:88)
    	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1223)
    	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1130)
    	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:545)
    	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:502)
    	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:312)
    	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
    	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:310)
    	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:200)
    	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:756)
    	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:868)
    	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:549)
    	at org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:676)
    	at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:642)
    	at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:690)
    	at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:558)
    	at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:499)
    	at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:172)
    	at javax.servlet.GenericServlet.init(GenericServlet.java:158)
    	at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1183)
    	at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1099)
    	at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:989)
    	at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4931)
    	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5241)
    	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1419)
    	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1409)
    	at java.util.concurrent.FutureTask.run(Unknown Source)
    	at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    	at java.lang.Thread.run(Unknown Source)

发现它们的启动线程不同，IDEA中是用JMX线程启动的，eclipse中是用tomcat线程启动的。说明IDEA是在启动完tomcat后再调用JMX初始化应用的，而eclipse应该是在启动tomcat时直接初始化了应用。