問題背景：最近在開發一個人行的專案，由於不同的商行所使用的WEB容器不一樣，導致同樣的程式碼在不同的容器中執行的效果不一樣。因此想在程式碼中新增容器判斷，從而讓應用自動選擇不同的實現。

問題描述：開發階段使用的是jetty6，商行使用的應用伺服器有tomcat7、websphere application server8.5.5，JDK版本是1.6

解決方法：

1)在專案中引入portal-kernel.jar，pom.xml中新增如下程式碼：

<!-- https://mvnrepository.com/artifact/com.liferay.portal/portal-kernel -->
		<dependency>
		    <groupId>com.liferay.portal</groupId>
		    <artifactId>portal-kernel</artifactId>
		    <version>5.2.3</version>
		    <scope>provided</scope>
		</dependency>
 

import com.liferay.portal.kernel.util.ServerDetector;

/**
 * 該類用於獲取web容器的型別,如：tomcat、jetty、was、jboss等 * 
 * @author wm 
 */
public class WebContainerInfo {

	public static String getServerName() {
		String serverName = null;
		if (ServerDetector.isWebLogic()) {
			serverName = "WebLogic";
		} else if (ServerDetector.isTomcat()) {
			serverName = "Tomcat";
		} else if (ServerDetector.isWebSphere()) {
			serverName = "WebSphere";
		} else if (ServerDetector.isSupportsComet()) {
			serverName = "SupportsComet";
		} else if (ServerDetector.isResin()) {
			serverName = "Resin";
		} else if (ServerDetector.isOC4J()) {
			serverName = "OC4J";
		} else if (ServerDetector.isJOnAS()) {
			serverName = "JOnAS";
		} else if (ServerDetector.isJetty()) {
			serverName = "Jetty";
		} else if (ServerDetector.isJBoss()) {
			serverName = "JBoss";
		} else if (ServerDetector.isGeronimo()) {
			serverName = "Geronimo";
		} else if (ServerDetector.isGlassfish()) {
			serverName = "Glassfish";
		} else if (ServerDetector.isGlassfish2()) {
			serverName = "Glassfish2";
		} else if (ServerDetector.isGlassfish3()) {
			serverName = "Glassfish3";
		}
		return serverName;
	}
}