jetty相对于tomcat来说，启动速度非常快，方便调试。
在idea的maven项目中，只需要在pom.xml配置文件中配置jetty的插件即可。
全部：
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.gaussic</groupId>
<artifactId>springdemo-list</artifactId>
<packaging>war</packaging>
<version>1.0-SNAPSHOT</version>
<name>springdemo-list Maven Webapp</name>
<url>http://maven.apache.org</url>
<properties>
<spring.version>4.2.6.RELEASE</spring.version>
<hibernate.version>5.1.0.Final</hibernate.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<!-- Jetty 属性, 保证Java web运行环境-->
<jetty.version>8.1.9.v20130131</jetty.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency> <dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-jpa</artifactId>
<version>1.10.1.RELEASE</version>
</dependency> <dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>${hibernate.version}</version>
</dependency> <dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-c3p0</artifactId>
<version>${hibernate.version}</version>
</dependency> <dependency>
<groupId>com.mchange</groupId>
<artifactId>c3p0</artifactId>
<version>0.9.5.2</version>
</dependency> <dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency> <dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.39</version>
</dependency>
</dependencies>
<build>
<finalName>springmvcdemo</finalName>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
<plugin>
<groupId>org.mortbay.jetty</groupId>
<artifactId>jetty-maven-plugin</artifactId>
<version>${jetty.version}</version>
<configuration>
<connectors>
<connector implementation="org.eclipse.jetty.server.nio.SelectChannelConnector">
<port>8012</port>
</connector>
</connectors>
<stopKey>exit</stopKey>
<stopPort>9090</stopPort>
<scanIntervalSeconds>10</scanIntervalSeconds>
<webAppConfig>
<contextPath>/${project.artifactId}</contextPath>
</webAppConfig>
</configuration>
</plugin>
</plugins>
</build>
</project>
properties节点：
<properties>
<spring.version>4.2.6.RELEASE</spring.version>
<hibernate.version>5.1.0.Final</hibernate.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<!-- Jetty 属性, 保证Java web运行环境-->
<jetty.version>8.1.9.v20130131</jetty.version>
</properties>
plugin节点：
<plugin>
<groupId>org.mortbay.jetty</groupId>
<artifactId>jetty-maven-plugin</artifactId>
<version>${jetty.version}</version>
<configuration>
<connectors>
<connector implementation="org.eclipse.jetty.server.nio.SelectChannelConnector">
<port>8012</port>
</connector>
</connectors>
<stopKey>exit</stopKey>
<stopPort>9090</stopPort>
<scanIntervalSeconds>10</scanIntervalSeconds>
<webAppConfig>
<contextPath>/${project.artifactId}</contextPath>
</webAppConfig>
</configuration>
</plugin>
直接的：
<plugin>
<groupId>org.mortbay.jetty</groupId>
<artifactId>jetty-maven-plugin</artifactId>
<version>8.1.9.v20130131</version>
<configuration>
<stopPort>9988</stopPort>
<stopKey>foo</stopKey>
<scanIntervalSeconds>5</scanIntervalSeconds>
<connectors>
<connector implementation="org.eclipse.jetty.server.nio.SelectChannelConnector">
<port>8014</port>
<maxIdleTime>60000</maxIdleTime>
</connector>
</connectors>
<webAppConfig>
<contextPath>/</contextPath>
</webAppConfig>
</configuration>
</plugin>
其中connector下的port就是启动端口，默认的是8080，这个端口很多应用都会用到，我们这里改成8012
contextPath配置的/springdemo-list
写好以后会发现右侧的插件部分多出jetty部分，直接点击上面的run就可以运行。
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如果是SpringBoot要设置成jetty方式的话，因为spring-boot-starter-web默认的是tomcat方式，如果要改，就必须去除spring-boot-starter-tomcat的依赖，再添加spring-boot-starter-jetty的依赖
添加依赖：
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
</exclusion>
</exclusions>
</dependency> <dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jetty</artifactId>
<exclusions>
<exclusion>
<groupId>org.eclipse.jetty.websocket</groupId>
<artifactId>*</artifactId>
</exclusion>
</exclusions>
</dependency>
这样就可以了。