jetty eclipse 整合二

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JETTY嵌入式Web容器的开发(二)---部署外部WAR包

作为WEB容器,部署WAR包是基础功能.

通过JETTY直接在程序里部署,并启动服务,可以实现复杂的部署操作对使用者透明化.

但这种程序中的部署方式,会使JETTY启动速度变得非常慢(后台的解压和拷贝操作),因此部署WAR包方式不建议与程序调试工作在一起.

JETTY嵌入式开发步骤

下载

同<JETTY嵌入式Web容器的开发(一)>,仍旧采用

jetty-hightide-8.1.4.v20120524.zip

ECLIPSE建立一个普通JAVA项目testjetty

建项目步骤同<JETTY嵌入式Web容器的开发(一)>,不做赘述

建成的项目的结构如下:

JETTY嵌入式Web容器的开发(二)---部署外部WAR包

修改/jetty/etc/jetty.xml

同<JETTY嵌入式Web容器的开发(一)>,不做赘述

确定需要部署的WAR包的所在路径

我找了一个比较大的,集成了SPRING,STRUTS2,IBARTS的项目

d:/ckxWeb.war

JETTY嵌入式Web容器的开发(二)---部署外部WAR包

JETTY Service类

Service类同<JETTY嵌入式Web容器的开发(一)>,这里只把对应部署功能的语句标红

package org.jetty.demo;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.IOException;

import org.apache.commons.lang.StringUtils;

import org.eclipse.jetty.server.Server;

import org.eclipse.jetty.server.handler.ContextHandlerCollection;

import org.eclipse.jetty.webapp.WebAppContext;

import org.eclipse.jetty.xml.XmlConfiguration;

import org.xml.sax.SAXException;

public class JettyCustomServer extends Server {

private String xmlConfigPath;

private String contextPath;

private String warPath;

private String resourceBase = "./webRoot";

private String webXmlPath = "./webRoot/WEB-INF/web.xml";

public JettyCustomServer(String xmlConfigPath,String contextPath,String resourceBase,String webXmlPath) {

this(xmlConfigPath,contextPath,resourceBase,webXmlPath,null);

}

public JettyCustomServer(String xmlConfigPath,String contextPath) {

this(xmlConfigPath,contextPath,null,null,null);

}

public JettyCustomServer(String xmlConfigPath,String contextPath,String warPath) {

this(xmlConfigPath,contextPath,null,null,warPath);

}

public JettyCustomServer(String xmlConfigPath,String contextPath,String resourceBase,String webXmlPath,String warPath) {

super();

if(StringUtils.isNotBlank(xmlConfigPath)){

this.xmlConfigPath = xmlConfigPath;

readXmlConfig();

}

if(StringUtils.isNotBlank(warPath)){

this.warPath = warPath;

if(StringUtils.isNotBlank(contextPath)){

this.contextPath = contextPath;

applyHandle(true);

}

}else{

if(StringUtils.isNotBlank(resourceBase))

this.resourceBase = resourceBase;

if(StringUtils.isNotBlank(webXmlPath))

this.webXmlPath = webXmlPath;

if(StringUtils.isNotBlank(contextPath)){

this.contextPath = contextPath;

applyHandle(false);

}

private void readXmlConfig(){

try {

XmlConfiguration configuration = new XmlConfiguration(new FileInputStream(this.xmlConfigPath));

configuration.configure(this);

} catch (FileNotFoundException e1) {

e1.printStackTrace();

} catch (SAXException e1) {

e1.printStackTrace();

} catch (IOException e1) {

e1.printStackTrace();

} catch (Exception e) {

e.printStackTrace();

}

public void applyHandle(Boolean warDeployFlag){

ContextHandlerCollection handler = new ContextHandlerCollection();

WebAppContext webapp = new WebAppContext();

webapp.setContextPath(contextPath);

webapp.setDefaultsDescriptor("./jetty/etc/webdefault.xml");

if(!warDeployFlag){

webapp.setResourceBase(resourceBase);

webapp.setDescriptor(webXmlPath);

}else{

webapp.setWar(warPath);

}

handler.addHandler(webapp);

super.setHandler(handler);

}

public void startServer(){

try {

super.start();

System.out.println("current thread:"+super.getThreadPool().getThreads()+"| idle thread:"+super.getThreadPool().getIdleThreads());

super.join();

} catch (Exception e) {

e.printStackTrace();

}

public String getXmlConfigPath() {

return xmlConfigPath;

}

public void setXmlConfigPath(String xmlConfigPath) {

this.xmlConfigPath = xmlConfigPath;

}

public String getContextPath() {

return contextPath;

}

public void setContextPath(String contextPath) {

this.contextPath = contextPath;

}

public String getResourceBase() {

return resourceBase;

}

public void setResourceBase(String resourceBase) {

this.resourceBase = resourceBase;

}

public String getWebXmlPath() {

return webXmlPath;

}

public void setWebXmlPath(String webXmlPath) {

this.webXmlPath = webXmlPath;

}

public String getWarPath() {

return warPath;

}

public void setWarPath(String warPath) {

this.warPath = warPath;

}

做一个简单的可执行的服务启动类

package org.jetty.demo;

public class JettyServerStart {

public static void main(String[] args) {

JettyCustomServer server = new JettyCustomServer("./jetty/etc/jetty.xml","/testContext","d:/ckxWeb.war");

server.startServer();

}

启动服务

执行JettyServerStart

2012-06-27 16:35:11.796:INFO:oejs.Server:jetty-8.1.4.v20120524

2012-06-27 16:35:36.281:INFO:oejw.WebInfConfiguration:Extract jar:file:/D:/ckxWeb.war!/ to C:\Documents and Settings\macg\Local Settings\Temp\jetty-0.0.0.0-8088-ckxWeb.war-_testContext-any-\webapp

系统停在这里足足有4分钟!全是后台解析WAR文件浪费的时间(从日志看,WAR包被展开到临时目录下),因此如果可能,还是建议采用目录部署的方式,WAR包部署启动太耗时间

2012-06-27 16:37:25.046:INFO:oejsh.ContextHandler:started o.e.j.w.WebAppContext{/testContext,file:/C:/Documents and Settings/macg/Local Settings/Temp/jetty-0.0.0.0-8088-ckxWeb.war-_testContext-any-/webapp/},d:/ckxWeb.war

2012-06-27 16:37:25.046:INFO:oejsh.ContextHandler:started o.e.j.w.WebAppContext{/testContext,file:/C:/Documents and Settings/macg/Local Settings/Temp/jetty-0.0.0.0-8088-ckxWeb.war-_testContext-any-/webapp/},d:/ckxWeb.war

2012-06-27 16:37:25.140:INFO:/testContext:Initializing Spring root WebApplicationContext

log4j:WARN No appenders could be found for logger (org.springframework.web.context.ContextLoader).

log4j:WARN Please initialize the log4j system properly.

日志比想象中少,因为这个testjetty项目是个简单的例子,什么都不带,没有自己的log系统(不管部署多少项目,一个web容器只能有一个统一的日志系统),所以spring,struts的日志都没出来,但不影响系统运行和访问

2012-06-27 16:37:29,140 INFO MLog.<clinit>(80)-MLog clients using log4j logging.

2012-06-27 16:37:29,203 INFO C3P0Registry.banner(77)-Initializing c3p0-0.9.0 [built 11-July-2005 00:43:29 -0400; debug? true; trace: 10]

2012-06-27 16:37:30.281:INFO:oejsh.ContextHandler:started o.e.j.w.WebAppContext{/testContext,file:/C:/Documents and Settings/macg/Local Settings/Temp/jetty-0.0.0.0-8088-ckxWeb.war-_testContext-any-/webapp/},d:/ckxWeb.war

2012-06-27 16:37:32.484:INFO:oejs.AbstractConnector:Started SelectChannelConnector@0.0.0.0:8088current thread:30| idle thread:26

测试

测试访问项目页面

注意:

假设项目原来的访问的URL为: http://localhost:8080/XXX/admin/main.do,其中XXX是项目的CONTEXT NAME

被JETTY部署后,发生了CONTEXT转化,必须在URL里采用启动服务里设的CONTEXT名

http://localhost:8088/testContext/admin/main.do?

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