在eclipse下面建一个java project
建立目录结构如下：
二级目录：
（备注jetty_test是工程的根目录，etc、lib、webRoot为其二级目录）
到jetty的官方网站（http://www.eclipse.org/jetty/）下载jetty的开发包；
我下载的jetty-hightide-8.0.0.v20110901.tar.gz；
把里面的lib目录的jar包和lib/jsp目录下面的jar包导入到工程里面
说明白，其实jetty.xml和webdefault.xml其实是在我下载的
jetty-hightide-8.0.0.v20110901.tar.gz里面的etc目录下面的jetty.xml和webdefault.xml
jetty.xml:
<?xml version="1.0"?>
<!DOCTYPE Configure PUBLIC "-//Jetty//Configure//EN" "http://www.eclipse.org/jetty/configure.dtd">
<!-- =============================================================== -->
<!-- Configure the Jetty Server -->
<!-- -->
<!-- Documentation of this file format can be found at: -->
<!-- http://wiki.eclipse.org/Jetty/Reference/jetty.xml_syntax -->
<!-- -->
<!-- Additional configuration files are available in $JETTY_HOME/etc -->
<!-- and can be mixed in. For example: -->
<!-- java -jar start.jar etc/jetty-ssl.xml -->
<!-- -->
<!-- See start.ini file for the default configuraton files -->
<!-- =============================================================== -->
<Configure id="Server" class="org.eclipse.jetty.server.Server">
<!-- =========================================================== -->
<!-- Server Thread Pool -->
<!-- =========================================================== -->
<Set name="ThreadPool">
<!-- Default queued blocking threadpool -->
<New class="org.eclipse.jetty.util.thread.QueuedThreadPool">
<Set name="minThreads">10</Set>
<Set name="maxThreads">200</Set>
<Set name="detailedDump">false</Set>
</New>
</Set>
<!-- =========================================================== -->
<!-- Set connectors -->
<!-- =========================================================== -->
<Call name="addConnector">
<Arg>
<New class="org.eclipse.jetty.server.nio.SelectChannelConnector">
<Set name="host"><Property name="jetty.host" /></Set>
<Set name="port"><Property name="jetty.port" default="8080"/></Set>
<Set name="maxIdleTime">300000</Set>
<Set name="Acceptors">2</Set>
<Set name="statsOn">false</Set>
<Set name="confidentialPort">8443</Set>
<Set name="lowResourcesConnections">20000</Set>
<Set name="lowResourcesMaxIdleTime">5000</Set>
</New>
</Arg>
</Call>
<!-- =========================================================== -->
<!-- Set handler Collection Structure -->
<!-- =========================================================== -->
<Set name="handler">
<New id="Handlers" class="org.eclipse.jetty.server.handler.HandlerCollection">
<Set name="handlers">
<Array type="org.eclipse.jetty.server.Handler">
<Item>
<New id="Contexts" class="org.eclipse.jetty.server.handler.ContextHandlerCollection"/>
</Item>
<Item>
<New id="DefaultHandler" class="org.eclipse.jetty.server.handler.DefaultHandler"/>
</Item>
</Array>
</Set>
</New>
</Set>
<!-- =========================================================== -->
<!-- extra options -->
<!-- =========================================================== -->
<Set name="stopAtShutdown">true</Set>
<Set name="sendServerVersion">true</Set>
<Set name="sendDateHeader">true</Set>
<Set name="gracefulShutdown">1000</Set>
<Set name="dumpAfterStart">false</Set>
<Set name="dumpBeforeStop">false</Set>
</Configure>
webdefault.xml:
<?xml version="1.0" encoding="ISO-8859-1"?>
<!-- ===================================================================== -->
<!-- This file contains the default descriptor for web applications. -->
<!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
<!-- The intent of this descriptor is to include jetty specific or common -->
<!-- configuration for all webapps. If a context has a webdefault.xml -->
<!-- descriptor, it is applied before the contexts own web.xml file -->
<!-- -->
<!-- A context may be assigned a default descriptor by: -->
<!-- + Calling WebApplicationContext.setDefaultsDescriptor -->
<!-- + Passed an arg to addWebApplications -->
<!-- -->
<!-- This file is used both as the resource within the jetty.jar (which is -->
<!-- used as the default if no explicit defaults descriptor is set) and it -->
<!-- is copied to the etc directory of the Jetty distro and explicitly -->
<!-- by the jetty.xml file. -->
<!-- -->
<!-- ===================================================================== -->
<web-app
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
metadata-complete="true"
version="2.5"
>
<description>
Default web.xml file.
This file is applied to a Web application before it‘s own WEB_INF/web.xml file
</description>
<!-- ==================================================================== -->
<!-- Removes static references to beans from javax.el.BeanELResolver to -->
<!-- ensure webapp classloader can be released on undeploy -->
<!-- ==================================================================== -->
<listener>
<listener-class>org.eclipse.jetty.servlet.listener.ELContextCleaner</listener-class>
</listener>
<!-- ==================================================================== -->
<!-- Removes static cache of Methods from java.beans.Introspector to -->
<!-- ensure webapp classloader can be released on undeploy -->
<!-- ==================================================================== -->
<listener>
<listener-class>org.eclipse.jetty.servlet.listener.IntrospectorCleaner</listener-class>
</listener>
<!-- ==================================================================== -->
<!-- Context params to control Session Cookies -->
<!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
<!--
UNCOMMENT TO ACTIVATE <context-param> <param-name>org.eclipse.jetty.servlet.SessionDomain</param-name> <param-value>127.0.0.1</param-value> </context-param> <context-param>
<param-name>org.eclipse.jetty.servlet.SessionPath</param-name> <param-value>/</param-value> </context-param> <context-param> <param-name>org.eclipse.jetty.servlet.MaxAge</param-name>
<param-value>-1</param-value> </context-param>
-->
<!-- ==================================================================== -->
<!-- The default servlet. -->
<!-- This servlet, normally mapped to /, provides the handling for static -->
<!-- content, OPTIONS and TRACE methods for the context. -->
<!-- The following initParameters are supported: -->
<!--
* acceptRanges If true, range requests and responses are
* supported
*
* dirAllowed If true, directory listings are returned if no
* welcome file is found. Else 403 Forbidden.
*
* welcomeServlets If true, attempt to dispatch to welcome files
* that are servlets, but only after no matching static
* resources could be found. If false, then a welcome
* file must exist on disk. If "exact", then exact
* servlet matches are supported without an existing file.
* Default is true.
*
* This must be false if you want directory listings,
* but have index.jsp in your welcome file list.
*
* redirectWelcome If true, welcome files are redirected rather than
* forwarded to.
*
* gzip If set to true, then static content will be served as
* gzip content encoded if a matching resource is
* found ending with ".gz"
*
* resourceBase Set to replace the context resource base
*
* resourceCache If set, this is a context attribute name, which the servlet
* will use to look for a shared ResourceCache instance.
*
* relativeResourceBase
* Set with a pathname relative to the base of the
* servlet context root. Useful for only serving static content out
* of only specific subdirectories.
*
* aliases If True, aliases of resources are allowed (eg. symbolic
* links and caps variations). May bypass security constraints.
*
* maxCacheSize The maximum total size of the cache or 0 for no cache.
* maxCachedFileSize The maximum size of a file to cache
* maxCachedFiles The maximum number of files to cache
*
* useFileMappedBuffer
* If set to true, it will use mapped file buffer to serve static content
* when using NIO connector. Setting this value to false means that
* a direct buffer will be used instead of a mapped file buffer.
* By default, this is set to true.
*
* cacheControl If set, all static content will have this value set as the cache-control
* header.
-->
<!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
<servlet>
<servlet-name>default</servlet-name>
<servlet-class>org.eclipse.jetty.servlet.DefaultServlet</servlet-class>
<init-param>
<param-name>aliases</param-name>
<param-value>false</param-value>
</init-param>
<init-param>
<param-name>acceptRanges</param-name>
<param-value>true</param-value>
</init-param>
<init-param>
<param-name>dirAllowed</param-name>
<param-value>true</param-value>
</init-param>
<init-param>
<param-name>welcomeServlets</param-name>
<param-value>false</param-value>
</init-param>
<init-param>
<param-name>redirectWelcome</param-name>
<param-value>false</param-value>
</init-param>
<init-param>
<param-name>maxCacheSize</param-name>
<param-value>256000000</param-value>
</init-param>
<init-param>
<param-name>maxCachedFileSize</param-name>
<param-value>200000000</param-value>
</init-param>
<init-param>
<param-name>maxCachedFiles</param-name>
<param-value>2048</param-value>
</init-param>
<init-param>
<param-name>gzip</param-name>
<param-value>true</param-value>
</init-param>
<init-param>
<param-name>useFileMappedBuffer</param-name>
<param-value>true</param-value>
</init-param>
<init-param>
<param-name>resourceCache</param-name>
<param-value>resourceCache</param-value>
</init-param>
<!--
<init-param>
<param-name>cacheControl</param-name>
<param-value>max-age=3600,public</param-value>
</init-param>
-->
<load-on-startup>0</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>default</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<!-- ==================================================================== -->
<!-- JSP Servlet -->
<!-- This is the jasper JSP servlet from the jakarta project -->
<!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
<!-- The JSP page compiler and execution servlet, which is the mechanism -->
<!-- used by Glassfish to support JSP pages. Traditionally, this servlet -->
<!-- is mapped to URL patterh "*.jsp". This servlet supports the -->
<!-- following initialization parameters (default values are in square -->
<!-- brackets): -->
<!-- -->
<!-- checkInterval If development is false and reloading is true, -->
<!-- background compiles are enabled. checkInterval -->
<!-- is the time in seconds between checks to see -->
<!-- if a JSP page needs to be recompiled. [300] -->
<!-- -->
<!-- compiler Which compiler Ant should use to compile JSP -->
<!-- pages. See the Ant documenation for more -->
<!-- information. [javac] -->
<!-- -->
<!-- classdebuginfo Should the class file be compiled with -->
<!-- debugging information? [true] -->
<!-- -->
<!-- classpath What class path should I use while compiling -->
<!-- generated servlets? [Created dynamically -->
<!-- based on the current web application] -->
<!-- Set to ? to make the container explicitly set -->
<!-- this parameter. -->
<!-- -->
<!-- development Is Jasper used in development mode (will check -->
<!-- for JSP modification on every access)? [true] -->
<!-- -->
<!-- enablePooling Determines whether tag handler pooling is -->
<!-- enabled [true] -->
<!-- -->
<!-- fork Tell Ant to fork compiles of JSP pages so that -->
<!-- a separate JVM is used for JSP page compiles -->
<!-- from the one Tomcat is running in. [true] -->
<!-- -->
<!-- ieClassId The class-id value to be sent to Internet -->
<!-- Explorer when using <jsp:plugin> tags. -->
<!-- [clsid:8AD9C840-044E-11D1-B3E9-00805F499D93] -->
<!-- -->
<!-- javaEncoding Java file encoding to use for generating java -->
<!-- source files. [UTF-8] -->
<!-- -->
<!-- keepgenerated Should we keep the generated Java source code -->
<!-- for each page instead of deleting it? [true] -->
<!-- -->
<!-- logVerbosityLevel The level of detailed messages to be produced -->
<!-- by this servlet. Increasing levels cause the -->
<!-- generation of more messages. Valid values are -->
<!-- FATAL, ERROR, WARNING, INFORMATION, and DEBUG. -->
<!-- [WARNING] -->
<!-- -->
<!-- mappedfile Should we generate static content with one -->
<!-- print statement per input line, to ease -->
<!-- debugging? [false] -->
<!-- -->
<!-- -->
<!-- reloading Should Jasper check for modified JSPs? [true] -->
<!-- -->
<!-- suppressSmap Should the generation of SMAP info for JSR45 -->
<!-- debugging be suppressed? [false] -->
<!-- -->
<!-- dumpSmap Should the SMAP info for JSR45 debugging be -->
<!-- dumped to a file? [false] -->
<!-- False if suppressSmap is true -->
<!-- -->
<!-- scratchdir What scratch directory should we use when -->
<!-- compiling JSP pages? [default work directory -->
<!-- for the current web application] -->
<!-- -->
<!-- tagpoolMaxSize The maximum tag handler pool size [5] -->
<!-- -->
<!-- xpoweredBy Determines whether X-Powered-By response -->
<!-- header is added by generated servlet [false] -->
<!-- -->
<!-- If you wish to use Jikes to compile JSP pages: -->
<!-- Set the init parameter "compiler" to "jikes". Define -->
<!-- the property "-Dbuild.compiler.emacs=true" when starting Jetty -->
<!-- to cause Jikes to emit error messages in a format compatible with -->
<!-- Jasper. -->
<!-- If you get an error reporting that jikes can‘t use UTF-8 encoding, -->
<!-- try setting the init parameter "javaEncoding" to "ISO-8859-1". -->
<!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
<servlet
id="jsp"
>
<servlet-name>jsp</servlet-name>
<servlet-class>org.apache.jasper.servlet.JspServlet</servlet-class>
<init-param>
<param-name>logVerbosityLevel</param-name>
<param-value>DEBUG</param-value>
</init-param>
<init-param>
<param-name>fork</param-name>
<param-value>false</param-value>
</init-param>
<init-param>
<param-name>xpoweredBy</param-name>
<param-value>false</param-value>
</init-param>
<!--
<init-param>
<param-name>classpath</param-name>
<param-value>?</param-value>
</init-param>
-->
<load-on-startup>0</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>jsp</servlet-name>
<url-pattern>*.jsp</url-pattern>
<url-pattern>*.jspf</url-pattern>
<url-pattern>*.jspx</url-pattern>
<url-pattern>*.xsp</url-pattern>
<url-pattern>*.JSP</url-pattern>
<url-pattern>*.JSPF</url-pattern>
<url-pattern>*.JSPX</url-pattern>
<url-pattern>*.XSP</url-pattern>
</servlet-mapping>
<!-- ==================================================================== -->
<!-- Dynamic Servlet Invoker. -->
<!-- This servlet invokes anonymous servlets that have not been defined -->
<!-- in the web.xml or by other means. The first element of the pathInfo -->
<!-- of a request passed to the envoker is treated as a servlet name for -->
<!-- an existing servlet, or as a class name of a new servlet. -->
<!-- This servlet is normally mapped to /servlet/* -->
<!-- This servlet support the following initParams: -->
<!-- -->
<!-- nonContextServlets If false, the invoker can only load -->
<!-- servlets from the contexts classloader. -->
<!-- This is false by default and setting this -->
<!-- to true may have security implications. -->
<!-- -->
<!-- verbose If true, log dynamic loads -->
<!-- -->
<!-- * All other parameters are copied to the -->
<!-- each dynamic servlet as init parameters -->
<!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
<!--
Uncomment for dynamic invocation <servlet> <servlet-name>invoker</servlet-name> <servlet-class>org.eclipse.jetty.servlet.Invoker</servlet-class> <init-param> <param-name>verbose</param-name>
<param-value>false</param-value> </init-param> <init-param> <param-name>nonContextServlets</param-name> <param-value>false</param-value> </init-param> <init-param>
<param-name>dynamicParam</param-name> <param-value>anyValue</param-value> </init-param> <load-on-startup>0</load-on-startup> </servlet> <servlet-mapping> <servlet-name>invoker</servlet-name>
<url-pattern>/servlet/*</url-pattern> </servlet-mapping>
-->
<!-- ==================================================================== -->
<session-config>
<session-timeout>30</session-timeout>
</session-config>
<!-- ==================================================================== -->
<!-- Default MIME mappings -->
<!-- The default MIME mappings are provided by the mime.properties -->
<!-- resource in the org.eclipse.jetty.server.jar file. Additional or modified -->
<!-- mappings may be specified here -->
<!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
<!-- UNCOMMENT TO ACTIVATE
<mime-mapping>
<extension>mysuffix</extension>
<mime-type>mymime/type</mime-type>
</mime-mapping>
-->
<!-- ==================================================================== -->
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
<!-- ==================================================================== -->
<locale-encoding-mapping-list>
<locale-encoding-mapping>
<locale>ar</locale>
<encoding>ISO-8859-6</encoding>
</locale-encoding-mapping>
<locale-encoding-mapping>
<locale>be</locale>
<encoding>ISO-8859-5</encoding>
</locale-encoding-mapping>
<locale-encoding-mapping>
<locale>bg</locale>
<encoding>ISO-8859-5</encoding>
</locale-encoding-mapping>
<locale-encoding-mapping>
<locale>ca</locale>
<encoding>ISO-8859-1</encoding>
</locale-encoding-mapping>
<locale-encoding-mapping>
<locale>cs</locale>
<encoding>ISO-8859-2</encoding>
</locale-encoding-mapping>
<locale-encoding-mapping>
<locale>da</locale>
<encoding>ISO-8859-1</encoding>
</locale-encoding-mapping>
<locale-encoding-mapping>
<locale>de</locale>
<encoding>ISO-8859-1</encoding>
</locale-encoding-mapping>
<locale-encoding-mapping>
<locale>el</locale>
<encoding>ISO-8859-7</encoding>
</locale-encoding-mapping>
<locale-encoding-mapping>
<locale>en</locale>
<encoding>ISO-8859-1</encoding>
</locale-encoding-mapping>
<locale-encoding-mapping>
<locale>es</locale>
<encoding>ISO-8859-1</encoding>
</locale-encoding-mapping>
<locale-encoding-mapping>
<locale>et</locale>
<encoding>ISO-8859-1</encoding>
</locale-encoding-mapping>
<locale-encoding-mapping>
<locale>fi</locale>
<encoding>ISO-8859-1</encoding>
</locale-encoding-mapping>
<locale-encoding-mapping>
<locale>fr</locale>
<encoding>ISO-8859-1</encoding>
</locale-encoding-mapping>
<locale-encoding-mapping>
<locale>hr</locale>
<encoding>ISO-8859-2</encoding>
</locale-encoding-mapping>
<locale-encoding-mapping>
<locale>hu</locale>
<encoding>ISO-8859-2</encoding>
</locale-encoding-mapping>
<locale-encoding-mapping>
<locale>is</locale>
<encoding>ISO-8859-1</encoding>
</locale-encoding-mapping>
<locale-encoding-mapping>
<locale>it</locale>
<encoding>ISO-8859-1</encoding>
</locale-encoding-mapping>
<locale-encoding-mapping>
<locale>iw</locale>
<encoding>ISO-8859-8</encoding>
</locale-encoding-mapping>
<locale-encoding-mapping>
<locale>ja</locale>
<encoding>Shift_JIS</encoding>
</locale-encoding-mapping>
<locale-encoding-mapping>
<locale>ko</locale>
<encoding>EUC-KR</encoding>
</locale-encoding-mapping>
<locale-encoding-mapping>
<locale>lt</locale>
<encoding>ISO-8859-2</encoding>
</locale-encoding-mapping>
<locale-encoding-mapping>
<locale>lv</locale>
<encoding>ISO-8859-2</encoding>
</locale-encoding-mapping>
<locale-encoding-mapping>
<locale>mk</locale>
<encoding>ISO-8859-5</encoding>
</locale-encoding-mapping>
<locale-encoding-mapping>
<locale>nl</locale>
<encoding>ISO-8859-1</encoding>
</locale-encoding-mapping>
<locale-encoding-mapping>
<locale>no</locale>
<encoding>ISO-8859-1</encoding>
</locale-encoding-mapping>
<locale-encoding-mapping>
<locale>pl</locale>
<encoding>ISO-8859-2</encoding>
</locale-encoding-mapping>
<locale-encoding-mapping>
<locale>pt</locale>
<encoding>ISO-8859-1</encoding>
</locale-encoding-mapping>
<locale-encoding-mapping>
<locale>ro</locale>
<encoding>ISO-8859-2</encoding>
</locale-encoding-mapping>
<locale-encoding-mapping>
<locale>ru</locale>
<encoding>ISO-8859-5</encoding>
</locale-encoding-mapping>
<locale-encoding-mapping>
<locale>sh</locale>
<encoding>ISO-8859-5</encoding>
</locale-encoding-mapping>
<locale-encoding-mapping>
<locale>sk</locale>
<encoding>ISO-8859-2</encoding>
</locale-encoding-mapping>
<locale-encoding-mapping>
<locale>sl</locale>
<encoding>ISO-8859-2</encoding>
</locale-encoding-mapping>
<locale-encoding-mapping>
<locale>sq</locale>
<encoding>ISO-8859-2</encoding>
</locale-encoding-mapping>
<locale-encoding-mapping>
<locale>sr</locale>
<encoding>ISO-8859-5</encoding>
</locale-encoding-mapping>
<locale-encoding-mapping>
<locale>sv</locale>
<encoding>ISO-8859-1</encoding>
</locale-encoding-mapping>
<locale-encoding-mapping>
<locale>tr</locale>
<encoding>ISO-8859-9</encoding>
</locale-encoding-mapping>
<locale-encoding-mapping>
<locale>uk</locale>
<encoding>ISO-8859-5</encoding>
</locale-encoding-mapping>
<locale-encoding-mapping>
<locale>zh</locale>
<encoding>GB2312</encoding>
</locale-encoding-mapping>
<locale-encoding-mapping>
<locale>zh_TW</locale>
<encoding>Big5</encoding>
</locale-encoding-mapping>
</locale-encoding-mapping-list>
<security-constraint>
<web-resource-collection>
<web-resource-name>Disable TRACE</web-resource-name>
<url-pattern>/</url-pattern>
<http-method>TRACE</http-method>
</web-resource-collection>
<auth-constraint/>
</security-constraint>
</web-app>
而webdefault.xml基本可以不改，因为它是用来标识文件的语言格式，基本的一些配置；
jetty.xml我们可以做一定的修改；
例如说我们可以改下服务监听的端口号，如图：
web.xml：
（备注就是web请求的配置信息，例如说设置servlet的路由）
如下面配置：
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" version="3.0">
<display-name></display-name>
<servlet>
<description>This is the description of my J2EE component</description>
<display-name>This is the display name of my J2EE component</display-name>
<servlet-name>HelloWorldServlet</servlet-name>
<servlet-class>org.jetty.demo.HelloWorldServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>HelloWorldServlet</servlet-name>
<url-pattern>/servlet/HelloWorldServlet</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>
好！我们现在就来建设一个如上面web.xml配置的servlet和index.jsp；
index.jsp页面
Index.jsp:
<%@ page language="java" contentType="text/html; charset=gb2312"
pageEncoding="utf-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
hello jetty! 中国!
</body>
</html>
HelloWorldServlet.java文件：
package org.jetty.demo;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
//Servlet
public class HelloWorldServlet extends HttpServlet {
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
System.out.println("doGet");
resp.getWriter().write("hello world!");
resp.getWriter().close();
}
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
System.out.println("doPost");
super.doPost(req, resp);
}
}
JettyCustomServer：总的服务类，本质上是一个分发器
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;
//总的服务类，本质上是一个分发器
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;
}
}
JettyServerStart.java：启动类，入口
package org.jetty.demo;
//启动类，入口
public class JettyServerStart {
public static void main(String[] args) {
JettyCustomServer server = new JettyCustomServer(
"./jetty/etc/jetty.xml", "/testContext");
server.startServer();
}
}
运行这个类相当于启动了整个工程：
访问index.jsp
http://localhost:8080/testContext/index.jsp
访问HelloWorldServlet：
http://localhost:8080/testContext/servlet/HelloWorldServlet
jetty使用教程(嵌入eclipse开发)
时间： 2024-10-13 20:19:50