tomcat一点
1.TOMCAT的启动过程主要分为初始化init 和启动二步start.2.容器主要为二大块，连接器connector与容器Container'
connector负责接受来的请求，并且创建请求与响应对象，然后交给Container去处理
3.tomcat定义了好多的组件，如下：
server service connectorContainer等组件，
组件对应关系：
一个server可以对应多个service组件,如源码中：
public void addService(Service service) {
service.setServer(this);
synchronized (services) {
Service results[] = new Service;
System.arraycopy(services, 0, results, 0, services.length);
results = service;
services = results;
if (initialized) {
try {
service.initialize();
} catch (LifecycleException e) {
log.error(e);
}
}
if (started && (service instanceof Lifecycle)) {
try {
((Lifecycle) service).start();
} catch (LifecycleException e) {
;
}
}
// Report this property change to interested listeners
support.firePropertyChange("service", null, service);
}
}
一个Service组件对应多个连接器：
public void addConnector(Connector connector) {
synchronized (connectors) {
connector.setContainer(this.container);
connector.setService(this);
Connector results[] = new Connector;
System.arraycopy(connectors, 0, results, 0, connectors.length);
results = connector;
connectors = results;
if (initialized) {
try {
connector.initialize();
} catch (LifecycleException e) {
log.error("Connector.initialize", e);
}
}
if (started && (connector instanceof Lifecycle)) {
try {
((Lifecycle) connector).start();
} catch (LifecycleException e) {
log.error("Connector.start", e);
}
}
// Report this property change to interested listeners
support.firePropertyChange("connector", null, connector);
}
}
Container里饮食几个组件 Engine，Host，Context，Wrapper
Host对应的是一个Server，可以供多个应用服务，而Context
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