標(biāo)題和上一篇很像，所以特別強(qiáng)調(diào)一下，這個(gè)是Tomcat對(duì)象的。
從TomcatEmbeddedServletContainer的this.tomcat.start()開(kāi)始，主要是利用LifecycleBase對(duì)這一套容器（engine，host，context及wrapper）進(jìn)行啟動(dòng)并發(fā)布諸如configure_start、before_init、after_start的lifecycleEvent事件給相應(yīng)的監(jiān)聽(tīng)器（如果有的話）。進(jìn)入start，因?yàn)榇藭r(shí)狀態(tài)是LifecycleState.NEW，所以會(huì)執(zhí)行init方法：
public final synchronized void init() throws LifecycleException {
if(!this.state.equals(LifecycleState.NEW)) {
this.invalidTransition("before_init");
}
try {
this.setStateInternal(LifecycleState.INITIALIZING, (Object)null, false);
this.initInternal();
this.setStateInternal(LifecycleState.INITIALIZED, (Object)null, false);
} catch (Throwable var2) {
ExceptionUtils.handleThrowable(var2);
this.setStateInternal(LifecycleState.FAILED, (Object)null, false);
throw new LifecycleException(sm.getString("lifecycleBase.initFail", new Object[]{this.toString()}), var2);
}
}