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。