嵌入式tomcat经典示例

xxl520

嵌入式tomcat经典示例
（由网友--开源狂人提供）

package org.demo.common;
import org.hzy.demo.core.TomcatServer;
public class WebStart {
public static void main(String[] args) throws Exception {
/*
*  Server server = new Server();
* SelectChannelConnector connector = new SelectChannelConnector();
* connector.setAcceptQueueSize(8); connector.setPort(80);
* server.setConnectors(new Connector[] { connector }); Context context =
* new WebAppContext("./WebRoot", "/"); server.addHandler(context);
* server.start(); server.join();
*/
new TomcatServer().start();
}

package org.hzy.demo.core;
import org.apache.catalina.Context;
import org.apache.catalina.Engine;
import org.apache.catalina.Host;
import org.apache.catalina.connector.Connector;
import org.apache.catalina.startup.Embedded;

public abstract class  BaseWebServerEmbed{
private static final int DEFAULT_PORT = 80;
private Embedded tomcat;
protected BaseWebServerEmbed() {
initEmbedded();
initShutdownHook();
}
protected abstract String[] getContextsAbsolutePath();
protected abstract String[] getContextsMappingPath();
protected abstract String getTomcatPath();
protected int getPort() {
return DEFAULT_PORT;
}
public void start() {
try {
long startTime = System.currentTimeMillis();
tomcat.start();
System.err.println("Embedded Tomcat started in "
+ (System.currentTimeMillis() - startTime) + " ms.");
} catch (Exception e) {
e.printStackTrace();
}
}
private void initEmbedded() {
tomcat = new Embedded();
tomcat.setCatalinaBase(getTomcatPath());
Host host = tomcat.createHost("127.0.0.1", tomcat.getCatalinaHome()
+ "/webapps");
String[] contexts = getContextsMappingPath();
String[] contextsPath = getContextsAbsolutePath();
Context context = null;
for (int i = 0; i < contexts.length; ++i) {
context = tomcat.createContext(contexts, contextsPath);
host.addChild(context);
}
Engine engine = tomcat.createEngine();
engine.setName("WEB_SERVER");
engine.addChild(host);
engine.setDefaultHost(host.getName());
tomcat.addEngine(engine);
// 只能本机访问
//Connector connector = tomcat.createConnector("127.0.0.1", getPort(),false);
// 可从其它机器访问
Connector connector = tomcat.createConnector((java.net.InetAddress) null, getPort(), false);
connector.setURIEncoding("UTF-8");
tomcat.addConnector(connector);
}
private void initShutdownHook() {
Runtime.getRuntime().addShutdownHook(new Thread() {
public void run() {
stopTomcat();
}
});
}
private void stopTomcat() {
try {
tomcat.stop();
} catch (Exception e) {
e.printStackTrace();
}
}
}

package org.hzy.demo.core;

public class TomcatServer extends BaseWebServerEmbed {
protected String[] getContextsAbsolutePath() {
return new String[] { getSingleContextAbsolutePath() };
}
private String getSingleContextAbsolutePath() {
String path = System.getProperty("user.dir") + "/WebRoot";
return path;
}
protected String[] getContextsMappingPath() {
return new String[] { "/" };
}
protected String getTomcatPath() {
try {
return System.getProperty("user.dir") + "/webserver";
} catch (Exception e) {
return "/D:\\tomcat-embed";
}
}
}