Maven工程配置SSM(Spring SpringMVC Mybatis)

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本文详细介绍Spring、SpringMVC及MyBatis（SSM）框架的整合步骤与配置过程，包括DAO层、Service层整合及SpringMVC配置，提供完整的项目配置文件样例。

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第一步：整合dao层（spring和mybatis整合，spring管理mapper接口，使用mapper的扫描器自动扫描mapper接口在spring中进行注册）

第二步：整合Service层（spring管理service接口，使用配置的方式将service配置到spring配置文件中，也可以使用注解的方式。实现事务控制）

第三步：整合springMVC（由于springMVC是spring的模块，不需要整合，只需要添加spring-mvc的包）

准备环境：

1.jdk1.8

2.所需jar包：

javax.servlet-api-4.0.1.jar

javax.servlet.jsp-api-2.0.jar

mysql-connector-java-5.1.39.jar

com.mchange-c3p0-0.9.5.2.jar

commons-pool-1.6.jar

commons-dbcp-1.4.jar

aopalliance-1.0.jar

asm-3.3.1.jar

org.springframework.spring-aspects-5.1.4.RELEASE.jar

aspectj.aspectjtools-1.5.0.jar

aspectj.aspectjweaver-1.5.3.jar

cglib.cglib-3.2.5.jar

commons-logging-1.1.1.jar

org.javassist.javassist-3.20.0-GA.jar

javax.servlet.jstl-1.2.jar

log4j-1.2.17.jar

org.apache.logging.log4j.log4j-api-2.11.1.jar

org.apache.logging.log4j.log4j-core-2.11.1.jar

org.mybatis.mybatis-3.4.6.jar

org.mybatis.mybatis-spring-1.3.2.jar

org.springframework.spring-aop-5.1.5.RELEASE.jar

org.springframework.spring-aspects-5.1.4.RELEASE.jar

org.springframework.spring-beans-5.1.3.RELEASE.jar

org.springframework.spring-context-5.1.3.RELEASE.jar

org.springframework.spring-context-support-5.1.5.RELEASE.jar

org.springframework.spring-core-5.1.5.RELEASE.jar

org.springframework.spring-expression-5.1.5.RELEASE.jar

org.springframework.spring-jdbc-5.1.5.RELEASE.jar

org.springframework.spring-orm-5.1.5.RELEASE.jar

org.springframework.spring-tx-5.1.5.RELEASE.jar

org.springframework.spring-test-5.1.1.RELEASE.jar

org.springframework.spring-web-5.1.5.RELEASE.jar

org.springframework.spring-webmvc-5.1.5.RELEASE.jar

org.codehaus.jackson.jackson-core-asl-1.9.13.jar

org.codehaus.jackson.jackson-mapper-asl-1.9.13.jar

3.其他jar包：

I/O : commons-io-2.4.jar

分页： com.github.pagehelper-4.1.6.jar

文件上传： commons-fileupload-1.3.3.jar

请求参数验证器：org.hibernate.hibernate-validator-6.0.13.Final.jar

org.jboss.logging.jboss-logging-3.3.0.Final.jar

javax.validation.validation-api-2.0.1.Final.jar

发送邮件：javax.mail-1.4.7.jar

javax.activation-1.1.1.jar

发送短信：commons-httpclient-3.1.jar

处理编码（MD5...）：commons-codec-1.4.jar

解析xml：dom4j-1.6.1.jar

json：com.alibaba.fastjson-1.2.47.jar

maven工程引入jar包：

<dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>
    
    <!-- https://mvnrepository.com/artifact/javax.servlet/javax.servlet-api -->
	<dependency>
	    <groupId>javax.servlet</groupId>
	    <artifactId>javax.servlet-api</artifactId>
	    <version>4.0.1</version>
	    <scope>provided</scope>
	</dependency>
	
	<!-- https://mvnrepository.com/artifact/javax.servlet/jsp-api -->
	<dependency>
	    <groupId>javax.servlet</groupId>
	    <artifactId>jsp-api</artifactId>
	    <version>2.0</version>
	    <scope>provided</scope>
	</dependency>
	
	<!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->
	<dependency>
	    <groupId>mysql</groupId>
	    <artifactId>mysql-connector-java</artifactId>
	    <version>5.1.39</version>
	</dependency>

	<!-- https://mvnrepository.com/artifact/com.mchange/c3p0 -->
	<dependency>
	    <groupId>com.mchange</groupId>
	    <artifactId>c3p0</artifactId>
	    <version>0.9.5.2</version>
	</dependency>
	
	<!-- https://mvnrepository.com/artifact/commons-pool/commons-pool -->
	<dependency>
	    <groupId>commons-pool</groupId>
	    <artifactId>commons-pool</artifactId>
	    <version>1.6</version>
	</dependency>

	<!-- https://mvnrepository.com/artifact/commons-dbcp/commons-dbcp -->
	<dependency>
	    <groupId>commons-dbcp</groupId>
	    <artifactId>commons-dbcp</artifactId>
	    <version>1.4</version>
	</dependency>
	
	<!-- https://mvnrepository.com/artifact/aopalliance/aopalliance -->
	<dependency>
	    <groupId>aopalliance</groupId>
	    <artifactId>aopalliance</artifactId>
	    <version>1.0</version>
	</dependency>
	
	<!-- https://mvnrepository.com/artifact/asm/asm -->
	<dependency>
	    <groupId>asm</groupId>
	    <artifactId>asm</artifactId>
	    <version>3.3.1</version>
	</dependency>
	
	<!-- https://mvnrepository.com/artifact/org.springframework/spring-aspects -->
	<dependency>
	    <groupId>org.springframework</groupId>
	    <artifactId>spring-aspects</artifactId>
	    <version>5.1.4.RELEASE</version>
	</dependency>

	<!-- https://mvnrepository.com/artifact/aspectj/aspectjtools -->
	<dependency>
	    <groupId>aspectj</groupId>
	    <artifactId>aspectjtools</artifactId>
	    <version>1.5.0</version>
	</dependency>
	
	<!-- https://mvnrepository.com/artifact/aspectj/aspectjweaver -->
	<dependency>
	    <groupId>aspectj</groupId>
	    <artifactId>aspectjweaver</artifactId>
	    <version>1.5.3</version>
	</dependency>
	
	<!-- https://mvnrepository.com/artifact/cglib/cglib -->
	<dependency>
	    <groupId>cglib</groupId>
	    <artifactId>cglib</artifactId>
	    <version>3.2.5</version>
	</dependency>
	
	<!-- https://mvnrepository.com/artifact/commons-logging/commons-logging -->
	<dependency>
	    <groupId>commons-logging</groupId>
	    <artifactId>commons-logging</artifactId>
	    <version>1.1.1</version>
	</dependency>
	
	<!-- https://mvnrepository.com/artifact/org.javassist/javassist -->
	<dependency>
	    <groupId>org.javassist</groupId>
	    <artifactId>javassist</artifactId>
	    <version>3.20.0-GA</version>
	</dependency>
	
	<!-- https://mvnrepository.com/artifact/javax.servlet/jstl -->
	<dependency>
	    <groupId>javax.servlet</groupId>
	    <artifactId>jstl</artifactId>
	    <version>1.2</version>
	</dependency>
	
	<!-- https://mvnrepository.com/artifact/log4j/log4j -->
	<dependency>
	    <groupId>log4j</groupId>
	    <artifactId>log4j</artifactId>
	    <version>1.2.17</version>
	</dependency>
	
	<!-- https://mvnrepository.com/artifact/org.apache.logging.log4j/log4j-api -->
	<dependency>
	    <groupId>org.apache.logging.log4j</groupId>
	    <artifactId>log4j-api</artifactId>
	    <version>2.11.1</version>
	</dependency>
	
	<!-- https://mvnrepository.com/artifact/org.apache.logging.log4j/log4j-core -->
	<dependency>
	    <groupId>org.apache.logging.log4j</groupId>
	    <artifactId>log4j-core</artifactId>
	    <version>2.11.1</version>
	</dependency>
	
	<!-- https://mvnrepository.com/artifact/org.mybatis/mybatis -->
	<dependency>
	    <groupId>org.mybatis</groupId>
	    <artifactId>mybatis</artifactId>
	    <version>3.4.6</version>
	</dependency>
	
	<!-- https://mvnrepository.com/artifact/org.mybatis/mybatis-spring -->
	<dependency>
	    <groupId>org.mybatis</groupId>
	    <artifactId>mybatis-spring</artifactId>
	    <version>1.3.2</version>
	</dependency>
	
	<!-- https://mvnrepository.com/artifact/org.springframework/spring-aop -->
	<dependency>
	    <groupId>org.springframework</groupId>
	    <artifactId>spring-aop</artifactId>
	    <version>5.1.5.RELEASE</version>
	</dependency>
	
	<!-- https://mvnrepository.com/artifact/org.springframework/spring-aspects -->
	<dependency>
	    <groupId>org.springframework</groupId>
	    <artifactId>spring-aspects</artifactId>
	    <version>5.1.4.RELEASE</version>
	</dependency>

    <!-- https://mvnrepository.com/artifact/org.springframework/spring-beans -->
	<dependency>
	    <groupId>org.springframework</groupId>
	    <artifactId>spring-beans</artifactId>
	    <version>5.1.3.RELEASE</version>
	</dependency>
	
	    <!-- https://mvnrepository.com/artifact/org.springframework/spring-context -->
	<dependency>
	    <groupId>org.springframework</groupId>
	    <artifactId>spring-context</artifactId>
	    <version>5.1.3.RELEASE</version>
	</dependency>
	
	<!-- https://mvnrepository.com/artifact/org.springframework/spring-context-support -->
	<dependency>
	    <groupId>org.springframework</groupId>
	    <artifactId>spring-context-support</artifactId>
	    <version>5.1.5.RELEASE</version>
	</dependency>
	
	<!-- https://mvnrepository.com/artifact/org.springframework/spring-core -->
	<dependency>
	    <groupId>org.springframework</groupId>
	    <artifactId>spring-core</artifactId>
	    <version>5.1.5.RELEASE</version>
	</dependency>
	
	<!-- https://mvnrepository.com/artifact/org.springframework/spring-expression -->
	<dependency>
	    <groupId>org.springframework</groupId>
	    <artifactId>spring-expression</artifactId>
	    <version>5.1.5.RELEASE</version>
	</dependency>
	
	<!-- https://mvnrepository.com/artifact/org.springframework/spring-jdbc -->
	<dependency>
	    <groupId>org.springframework</groupId>
	    <artifactId>spring-jdbc</artifactId>
	    <version>5.1.5.RELEASE</version>
	</dependency>
	
	<!-- https://mvnrepository.com/artifact/org.springframework/spring-orm -->
	<dependency>
	    <groupId>org.springframework</groupId>
	    <artifactId>spring-orm</artifactId>
	    <version>5.1.5.RELEASE</version>
	</dependency>
	
	<!-- https://mvnrepository.com/artifact/org.springframework/spring-tx -->
	<dependency>
	    <groupId>org.springframework</groupId>
	    <artifactId>spring-tx</artifactId>
	    <version>5.1.5.RELEASE</version>
	</dependency>
	
	<!-- https://mvnrepository.com/artifact/org.springframework/spring-test -->
	<dependency>
	    <groupId>org.springframework</groupId>
	    <artifactId>spring-test</artifactId>
	    <version>5.1.1.RELEASE</version>
	    <scope>test</scope>
	</dependency>
	
	<!-- https://mvnrepository.com/artifact/org.springframework/spring-web -->
	<dependency>
	    <groupId>org.springframework</groupId>
	    <artifactId>spring-web</artifactId>
	    <version>5.1.5.RELEASE</version>
	</dependency>
	
	<!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc -->
	<dependency>
	    <groupId>org.springframework</groupId>
	    <artifactId>spring-webmvc</artifactId>
	    <version>5.1.5.RELEASE</version>
	</dependency>
	
	
	<!-- https://mvnrepository.com/artifact/com.github.pagehelper/pagehelper -->
	<dependency>
	    <groupId>com.github.pagehelper</groupId>
	    <artifactId>pagehelper</artifactId>
	    <version>4.1.6</version>
	</dependency>
	
	<!-- https://mvnrepository.com/artifact/commons-fileupload/commons-fileupload -->
	<dependency>
	    <groupId>commons-fileupload</groupId>
	    <artifactId>commons-fileupload</artifactId>
	    <version>1.3.3</version>
	</dependency>
	
	<!-- https://mvnrepository.com/artifact/org.hibernate/hibernate-validator -->
	<dependency>
	    <groupId>org.hibernate</groupId>
	    <artifactId>hibernate-validator</artifactId>
	    <version>6.0.13.Final</version>
	</dependency>
	
	<!-- https://mvnrepository.com/artifact/org.jboss.logging/jboss-logging -->
	<dependency>
	    <groupId>org.jboss.logging</groupId>
	    <artifactId>jboss-logging</artifactId>
	    <version>3.3.0.Final</version>
	</dependency>
	
	<!-- https://mvnrepository.com/artifact/javax.validation/validation-api -->
	<dependency>
	    <groupId>javax.validation</groupId>
	    <artifactId>validation-api</artifactId>
	    <version>2.0.1.Final</version>
	</dependency>
	
	<!-- https://mvnrepository.com/artifact/javax.mail/mail -->
	<dependency>
	    <groupId>javax.mail</groupId>
	    <artifactId>mail</artifactId>
	    <version>1.4.7</version>
	</dependency>

	<!-- https://mvnrepository.com/artifact/javax.activation/activation -->
	<dependency>
	    <groupId>javax.activation</groupId>
	    <artifactId>activation</artifactId>
	    <version>1.1.1</version>
	</dependency>
	
	<!-- https://mvnrepository.com/artifact/commons-httpclient/commons-httpclient -->
	<dependency>
	    <groupId>commons-httpclient</groupId>
	    <artifactId>commons-httpclient</artifactId>
	    <version>3.1</version>
	</dependency>
	
	<!-- https://mvnrepository.com/artifact/commons-codec/commons-codec -->
	<dependency>
	    <groupId>commons-codec</groupId>
	    <artifactId>commons-codec</artifactId>
	    <version>1.4</version>
	</dependency>
	
	<!-- https://mvnrepository.com/artifact/dom4j/dom4j -->
	<dependency>
	    <groupId>dom4j</groupId>
	    <artifactId>dom4j</artifactId>
	    <version>1.6.1</version>
	</dependency>
	
	<!-- https://mvnrepository.com/artifact/com.alibaba/fastjson -->
	<dependency>
	    <groupId>com.alibaba</groupId>
	    <artifactId>fastjson</artifactId>
	    <version>1.2.47</version>
	</dependency>
	
	<!-- https://mvnrepository.com/artifact/org.codehaus.jackson/jackson-core-asl -->
	<dependency>
	    <groupId>org.codehaus.jackson</groupId>
	    <artifactId>jackson-core-asl</artifactId>
	    <version>1.9.13</version>
	</dependency>

	<!-- https://mvnrepository.com/artifact/org.codehaus.jackson/jackson-mapper-asl -->
	<dependency>
	    <groupId>org.codehaus.jackson</groupId>
	    <artifactId>jackson-mapper-asl</artifactId>
	    <version>1.9.13</version>
	</dependency>
	
  </dependencies>

配置完成的项目工程：

sqlMapConfig.xml:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE configuration
  PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
  "http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>  

	<!-- 分页插件 -->
	<plugins>
		<plugin interceptor="com.github.pagehelper.PageHelper">
			<!-- 方言属性 -->
			<property name="dialect" value="mysql"/>
		</plugin>
	</plugins>
</configuration>

applicationContext-dao.xml:

<?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"
       xmlns:util="http://www.springframework.org/schema/util" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
       xsi:schemaLocation="
			http://www.springframework.org/schema/beans 
			http://www.springframework.org/schema/beans/spring-beans.xsd
			http://www.springframework.org/schema/util 
			http://www.springframework.org/schema/util/spring-util.xsd
			http://www.springframework.org/schema/context 
			http://www.springframework.org/schema/context/spring-context.xsd
			http://www.springframework.org/schema/tx 
			http://www.springframework.org/schema/tx/spring-tx.xsd
			http://www.springframework.org/schema/aop 
			http://www.springframework.org/schema/aop/spring-aop.xsd"> 
		 
		<!-- 扫描注解类 -->
	<context:component-scan base-package="com.yc"></context:component-scan>
	
	<!-- 引入配置文件 -->
	<context:property-placeholder location="classpath:db.properties"/>
	
	<!-- 配置数据源 -->
	<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
		<property name="driverClass" value="${jdbc.driver}"></property>
		<property name="jdbcUrl" value="${jdbc.url}"></property>
		<property name="user" value="${jdbc.username}"></property>
		<property name="password" value="${jdbc.password}"></property>
	</bean>
	
	<!-- SqlSessionFactory -->
	<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
		<!-- 加载mybatis的配置文件 -->
		<property name="configLocation" value="classpath:mybatis/sqlMapConfig.xml"></property>
		<!-- 数据源 -->
		<property name="dataSource" ref="dataSource"></property>
	</bean>
	
	<!-- mapper批量扫描，从dao包中扫描出mapper接口，自动创建代理对象并且在spring容器中注入 (后处理Bean技术)
		需要遵守规范  mapper.java  和  mapper.xml的名称要保持一致，并且在一个目录里
	-->
	<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
		<!-- 指定扫描的包名 -->
		<property name="basePackage" value="com.yc.ssmProperties.dao"></property>
		<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>
	</bean>
</beans>

applicationContext-transaction.xml:

<?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"
       xmlns:util="http://www.springframework.org/schema/util" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
       xsi:schemaLocation="
			http://www.springframework.org/schema/beans 
			http://www.springframework.org/schema/beans/spring-beans.xsd
			http://www.springframework.org/schema/util 
			http://www.springframework.org/schema/util/spring-util.xsd
			http://www.springframework.org/schema/context 
			http://www.springframework.org/schema/context/spring-context.xsd
			http://www.springframework.org/schema/tx 
			http://www.springframework.org/schema/tx/spring-tx.xsd
			http://www.springframework.org/schema/aop 
			http://www.springframework.org/schema/aop/spring-aop.xsd"> 
	
	<!-- 事务管理器 
		对mybatis操作数据库事务控制，spring使用jdbc的事务控制类
	-->
	<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
		<!-- 配置数据源	这里的dataSource引用的是applicationContext-dao.xml中的-->
		<property name="dataSource" ref="dataSource"></property>
	</bean>
	<!-- tx注解 -->
	<tx:annotation-driven transaction-manager="transactionManager"/>

	
</beans>

springmvc.xml:

<?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" xmlns:p="http://www.springframework.org/schema/p"
       xmlns:util="http://www.springframework.org/schema/util" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:mvc="http://www.springframework.org/schema/mvc"
       xsi:schemaLocation="
			http://www.springframework.org/schema/beans 
			http://www.springframework.org/schema/beans/spring-beans.xsd
			http://www.springframework.org/schema/util 
			http://www.springframework.org/schema/util/spring-util.xsd
			http://www.springframework.org/schema/context 
			http://www.springframework.org/schema/context/spring-context.xsd
			http://www.springframework.org/schema/tx 
			http://www.springframework.org/schema/tx/spring-tx.xsd
			http://www.springframework.org/schema/aop 
			http://www.springframework.org/schema/aop/spring-aop.xsd
			http://www.springframework.org/schema/mvc 
			http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd ">   
	<!-- 扫描包 -->
	<context:component-scan base-package="com.yc.ssmProperties.web.controller"></context:component-scan> 
	
	<!-- 注解驱动 -->
	<mvc:annotation-driven></mvc:annotation-driven>

	<!-- 视图解析器：对转向页面的路径解析。prefix：前缀， suffix：后缀 -->
	<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<property name="prefix" value="/WEB-INF/jsp/"/>
		<property name="suffix" value=".jsp"/>
	</bean>
    
</beans>

db.properties:

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/ssmproperties
jdbc.username=root
jdbc.password=a

log4j.properties:

log4j.rootLogger=DEBUG, stdout

log4j.logger.com.yc=TRACE
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.patternLayout
log4j.appender.stdout.layout.ConversionPattern=%5p [%t] - %m%n

web.xml:

<?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" 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>ssmProperties</display-name>
  
  <!-- 加载spring容器   将mapper  service  springmvc与spring关联起来-->
  <context-param>
  	<param-name>contextConfigLocation</param-name>
  	<param-value>/WEB-INF/classes/spring/applicationContext-*.xml</param-value>
  </context-param>
  <listener>
  	<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>
  
  
  <!-- spring前端控制器   (分发器) -->
  <servlet>
  	<servlet-name>springmvc</servlet-name>
  	<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
  	<!-- contextConfigLocation配置springmvc加载的配置文件（配置文件中需要配置处理器映射器、适配器等等）
  		如果不配置contextConfigLocation，默认加载的是/WEB-INF/servlet名称-servlet.xml(springmvc-servlet.xml) -->
  	<init-param>
  		<param-name>contextConfigLocation</param-name>
  		<param-value>classpath:spring/springmvc.xml</param-value>
  	</init-param>
  	<!-- 
  		1.表示tomcat服务器启动时加载当前的Servlet(Servlet默认是在被访问的时候才会创建)
  		2.数字表示加载的顺序  1为优先加载
  	 -->
  	 <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
  	<servlet-name>springmvc</servlet-name>
  	<!-- 
  		第一种：*.action		访问.action结尾的DispatcherServlet进行解析
  		第二种：/	所有访问的地址都由DispatcherServlet进行解析，对于静态文件的解析需要配置不让DispatcherServlet进行解析
  				使用此种方式可以实现RESTful风格的url
  		第三种：/*	这样配置不对，使用这种配置，最终转发到一个jsp页面时，仍然会由DispatcherServlet解析jsp，不能根据jsp页面找到handler,会报错。
  	 -->
  	<url-pattern>*.action</url-pattern>
  </servlet-mapping>
  
  <!-- rest前端控制器 -->
  <servlet>
  	<servlet-name>springmvc_rest</servlet-name>
  	<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
  	<init-param>
  		<param-name>contextConfigLocation</param-name>
  		<param-value>classpath:spring/springmvc.xml</param-value>
  	</init-param>
  </servlet>
  <servlet-mapping>
  	<servlet-name>springmvc_rest</servlet-name>
  	<url-pattern>/</url-pattern>
  </servlet-mapping>
  
  
  <welcome-file-list>
    <welcome-file>index.html</welcome-file>
    <welcome-file>index.htm</welcome-file>
    <welcome-file>index.jsp</welcome-file>
    <welcome-file>default.html</welcome-file>
    <welcome-file>default.htm</welcome-file>
    <welcome-file>default.jsp</welcome-file>
  </welcome-file-list>
</web-app>

pom.xml:

设置字符集：

<!-- 设置工程属性 -->
  <properties>
  	<!-- 改字符集 -->
  	<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
	<maven.compiler.encoding>UTF-8</maven.compiler.encoding>
  </properties>

设置JDK版本：

<plugin>  
             <groupId>org.apache.maven.plugins</groupId>  
             <artifactId>maven-compiler-plugin</artifactId>  
             <configuration>  
                 <source>1.8</source>  
                 <target>1.8</target>  
             </configuration>  
         </plugin>

配置jetty服务器：

<!-- run as ==> builder... ==>  jetty:run -->
			<plugin>
				<groupId>org.eclipse.jetty</groupId>
				<artifactId>jetty-maven-plugin</artifactId>
				<version>9.4.15.v20190215</version>
				<configuration>
					<httpConnector>
						<port>80</port>
					</httpConnector>
					<!-- 组件扫描时间间隔 -->
					<scanIntervalSeconds>2</scanIntervalSeconds>
					<!-- 手动启动服务器 -->
					<reload>manual</reload>
					<!-- 自定义上下文路径  -->
					<contextPath>/</contextPath>
				</configuration>
			</plugin>