Jetty简介

Jetty是一个开源的servlet容器。

jetty & tomcat

  • jetty构架更简单
  • jetty基于Handler实现，tomcat基于容器设计
  • jetty适合处理长连接，tomcat适合处理短连接
  • jetty采用NIO，tomcat采用BIO（不适合处理静态资源）

example

IDE:IntelliJ Idea 15

配置SDK

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Configure -> Settings -> Project Structure
Edit Project SDK

创建maven项目intelliJ新建一个maven项目

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Create New Project -> maven
选择 maven-archetype-webapp
填写 GroupId和ArtifactId
next ...

添加jetty依赖

添加jetty插件：org.mortbay.jetty

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<build>
  <finalName>demo</finalName>
  <plugins>
    <plugin>
      <groupId>org.mortbay.jetty</groupId>
      <artifactId>maven-jetty-plugin</artifactId>
      <version>6.1.26</version>
      <configuration>
        <connectors>
          <connector implementation="org.mortbay.jetty.nio.SelectChannelConnector">
            <port>8080</port>
          </connector>
        </connectors>
        <scanIntervalSeconds>10</scanIntervalSeconds>
      </configuration>
    </plugin>
  </plugins>
</build>

编辑启动命令

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Edit Configurations
Command line: jetty:run
启动后，访问:127.0.0.1:8080/demo

spring mvc with jetty

增加spring依赖

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<dependency>
  <groupId>org.springframework</groupId>
  <artifactId>spring-core</artifactId>
  <version>${spring.version}</version>
</dependency>

<dependency>
  <groupId>org.springframework</groupId>
  <artifactId>spring-context</artifactId>
  <version>${spring.version}</version>
</dependency>

<dependency>
  <groupId>org.springframework</groupId>
  <artifactId>spring-webmvc</artifactId>
  <version>${spring.version}</version>
</dependency>

<dependency>
  <groupId>org.springframework</groupId>
  <artifactId>spring-context-support</artifactId>
  <version>${spring.version}</version>
</dependency>

<dependency>
  <groupId>javax.servlet</groupId>
  <artifactId>servlet-api</artifactId>
  <version>${servlet.version}</version>
</dependency>

<dependency>
  <groupId>jstl</groupId>
  <artifactId>jstl</artifactId>
  <version>${jstl.version}</version>
</dependency>

对应的版本信息

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<properties>
  <spring.version>4.2.5.RELEASE</spring.version>
  <spring-data.version>1.2.0.RELEASE</spring-data.version>
  <servlet.version>2.5</servlet.version>
  <jstl.version>1.2</jstl.version>
</properties>

配置web.xml

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<servlet>
  <servlet-name>mvc-dispatcher</servlet-name>
  <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
  <load-on-startup>1</load-on-startup>
</servlet>

<servlet-mapping>
  <servlet-name>mvc-dispatcher</servlet-name>
  <url-pattern>/</url-pattern>
</servlet-mapping>

配置对应的servlet
在web.xml所在目录，新建mvc-dispatcher-servlet.xml

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<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd">

    <!--指定controller位置-->
    <context:component-scan base-package="controller"/>

    <bean id="jspViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>
        <property name="prefix" value="/WEB-INF/pages/"/>
        <property name="suffix" value=".jsp"/>
    </bean>
</beans>

创建webapp/WEB-INF/pages/index.jsp

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<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <!-- 上述3个meta标签*必须*放在最前面，任何其他内容都*必须*跟随其后！ -->
    <title>SpringMVC Demo 首页</title>

    <!-- 新 Bootstrap 核心 CSS 文件 -->
    <link rel="stylesheet" href="//cdn.bootcss.com/bootstrap/3.3.5/css/bootstrap.min.css">

    <!-- HTML5 shim and Respond.js for IE8 support of HTML5 elements and media queries -->
    <!-- WARNING: Respond.js doesn't work if you view the page via file:// -->
    <!--[if lt IE 9]>
    <script src="//cdn.bootcss.com/html5shiv/3.7.2/html5shiv.min.js"></script>
    <script src="//cdn.bootcss.com/respond.js/1.4.2/respond.min.js"></script>
    <![endif]-->
</head>
<body>
<h1>SpringMVC Demo</h1>

<h3>出现此页面，说明配置成功。</h3>

<!-- jQuery文件。务必在bootstrap.min.js 之前引入 -->
<script src="//cdn.bootcss.com/jquery/1.11.3/jquery.min.js"></script>

<!-- 最新的 Bootstrap 核心 JavaScript 文件 -->
<script src="//cdn.bootcss.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
</body>
</html>

创建src/main/java/controller/IndexController.java

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package controller;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;

@Controller
public class IndexController {
    @RequestMapping(value = "/", method = RequestMethod.GET)
    public String index() {
        return "index";
    }
}