使用intelliJ IDE开发java web项目

 <!-- spring版本号 -->

<spring.version>4.3.0.RELEASE</spring.version>

<!-- mybatis版本号 -->
<mybatis.version>3.4.4</mybatis.version>

<!-- mysql驱动版本号 -->
<mysql-driver.version>5.1.40</mysql-driver.version>

<!-- log4j日志包版本号 -->
<log4j.version>2.7</log4j.version>
<commons-logging.version>1.2</commons-logging.version>

<!-- 对象转 jackson 版本号 -->
<jackson.version>1.9.13</jackson.version>

使用maven 开发springmvc apring mybatis web项目。

1.File -> New Project ，进入创建项目窗口

 2 出现以下界面 

3 按照如上选项进行点击，点next

4 上面两项随便填，点击next

上面选项中可以直接使用默认配置。我修改的local repository是本地仓库位置，可以改也可以不改。下面在Properties中添加一个参数 archetypeCatalog=internal，不加这个参数，在maven生成骨架的时候将会非常慢，有时候直接卡住。来自网上的解释：archetypeCatalog表示插件使用的archetype元数据，不加这个参数时默认为remote，local，即中央仓库archetype元数据，由于中央仓库的archetype太多了所以导致很慢，指定internal来表示仅使用内部元数据。

5 点击next

这个我没有修改，点击finish

6 生成maven的项目骨架之后，我们还需要手动在 src/main 下创建 java目录。现在可以直接编写了

 到此为止，项目的框架基本搭建完成。

7 下面进行pom.xml进行配置

<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.huitong</groupId>
  <artifactId>webapp1</artifactId>
  <packaging>war</packaging>
  <version>1.0-SNAPSHOT</version>
  <name>webapp1 Maven Webapp</name>
  <url>http://maven.apache.org</url>
  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
    <!-- spring版本号 -->
    <spring.version>4.3.0.RELEASE</spring.version>

    <!-- mybatis版本号 -->
    <mybatis.version>3.4.4</mybatis.version>

    <!-- mysql驱动版本号 -->
    <mysql-driver.version>5.1.40</mysql-driver.version>

    <!-- log4j日志包版本号 -->
    <log4j.version>2.7</log4j.version>
    <commons-logging.version>1.2</commons-logging.version>

    <!-- 对象转 jackson 版本号 -->
    <jackson.version>1.9.13</jackson.version>


  </properties>
  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.11</version>
      <scope>test</scope>
    </dependency>

    <!-- 添加jstl依赖 -->
    <dependency>
      <groupId>jstl</groupId>
      <artifactId>jstl</artifactId>
      <version>1.2</version>
    </dependency>

    <!-- javaee 7.0 -->
    <!-- https://mvnrepository.com/artifact/javax/javaee-api -->
    <dependency>
      <groupId>javax</groupId>
      <artifactId>javaee-api</artifactId>
      <version>7.0</version>
    </dependency>


    <!-- ######## spring mvc 依赖包 start ################################-->
    <!-- https://mvnrepository.com/artifact/org.springframework/spring-web -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-web</artifactId>
      <version>${spring.version}</version>
    </dependency>

    <!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <!-- ######## spring mvc 依赖包 end ################################-->

    <!-- ######## spring core 依赖包 start ################################-->
    <!-- https://mvnrepository.com/artifact/org.springframework/spring-beans -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-beans</artifactId>
      <version>${spring.version}</version>
    </dependency>

    <!-- https://mvnrepository.com/artifact/org.springframework/spring-context -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context</artifactId>
      <version>${spring.version}</version>
    </dependency>

    <!-- https://mvnrepository.com/artifact/org.springframework/spring-core -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-core</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <!-- ######## spring core 依赖包 end ################################-->

    <!-- ######## mybatis core 依赖包 start ################################-->
    <!-- https://mvnrepository.com/artifact/org.ow2.asm/asm -->
    <dependency>
      <groupId>org.ow2.asm</groupId>
      <artifactId>asm</artifactId>
      <version>5.2</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/org.mybatis/mybatis -->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis</artifactId>
      <version>${mybatis.version}</version>
    </dependency>
    <!-- ######## mybatis core 依赖包 end ################################-->

    <!-- ######## mybatis spring 依赖包 start ################################-->
    <!-- https://mvnrepository.com/artifact/org.mybatis/mybatis-spring -->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis-spring</artifactId>
      <version>1.3.1</version>
    </dependency>
    <!-- ######## mybatis spring 依赖包 end ################################-->


    <!-- ######## DBconnector 依赖包 start ################################-->
    <!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>${mysql-driver.version}</version>
    </dependency>

    <!-- https://mvnrepository.com/artifact/com.mchange/c3p0 -->
    <dependency>
      <groupId>com.mchange</groupId>
      <artifactId>c3p0</artifactId>
      <version>0.9.5.2</version>
    </dependency>
    <!-- ######## DBconnector 依赖包 end ################################-->

    <!-- ######## translation 依赖包 start ################################-->
    <!-- https://mvnrepository.com/artifact/org.springframework/spring-jdbc -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-jdbc</artifactId>
      <version>${spring.version}</version>
    </dependency>

    <!-- https://mvnrepository.com/artifact/org.springframework/spring-tx -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-tx</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <!-- ######## translation 依赖包 end ################################-->

    <!-- ######## AOP 依赖包 start ################################-->
    <!-- https://mvnrepository.com/artifact/aopalliance/aopalliance -->
    <dependency>
      <groupId>aopalliance</groupId>
      <artifactId>aopalliance</artifactId>
      <version>1.0</version>
    </dependency>

    <!-- https://mvnrepository.com/artifact/org.aspectj/aspectjrt -->
    <dependency>
      <groupId>org.aspectj</groupId>
      <artifactId>aspectjrt</artifactId>
      <version>1.8.10</version>
    </dependency>

    <!-- https://mvnrepository.com/artifact/org.aspectj/aspectjweaver -->
    <dependency>
      <groupId>org.aspectj</groupId>
      <artifactId>aspectjweaver</artifactId>
      <version>1.8.10</version>
    </dependency>

    <!-- https://mvnrepository.com/artifact/org.springframework/spring-aop -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-aop</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <!-- ######## AOP 依赖包 end ################################-->


    <!-- ######## json 依赖包 start ################################-->
    <!-- https://mvnrepository.com/artifact/org.codehaus.jackson/jackson-core-asl -->
    <dependency>
      <groupId>org.codehaus.jackson</groupId>
      <artifactId>jackson-core-asl</artifactId>
      <version>${jackson.version}</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.codehaus.jackson/jackson-mapper-asl -->
    <dependency>
      <groupId>org.codehaus.jackson</groupId>
      <artifactId>jackson-mapper-asl</artifactId>
      <version>${jackson.version}</version>
    </dependency>
    <!-- ######## json 依赖包 end ################################-->




    <!-- https://mvnrepository.com/artifact/commons-logging/commons-logging -->
    <dependency>
      <groupId>commons-logging</groupId>
      <artifactId>commons-logging</artifactId>
      <version>${commons-logging.version}</version>
    </dependency>

    <!-- https://mvnrepository.com/artifact/org.apache.logging.log4j/log4j-core -->
    <dependency>
      <groupId>org.apache.logging.log4j</groupId>
      <artifactId>log4j-core</artifactId>
      <version>${log4j.version}</version>
    </dependency>



  </dependencies>
  <build>
    <finalName>webapp1</finalName>
  </build>
</project>

写完pom.xml文件后需要更新依赖，

点击更新。

 8 按照常规步骤开发SSM项目即可。

可以参考SSM整合开发流程

9 spring.xml项目配置，mybatis配置文件指定，spring配置，springMVC配置

<?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:p="http://www.springframework.org/schema/p"
       xmlns:context="http://www.springframework.org/schema/context"
       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-4.3.xsd
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context-4.3.xsd
        http://www.springframework.org/schema/tx
        http://www.springframework.org/schema/tx/spring-tx-4.3.xsd
        http://www.springframework.org/schema/aop
        http://www.springframework.org/schema/aop/spring-aop-4.3.xsd
        http://www.springframework.org/schema/mvc
        http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd">

    <!-- 1 dataSource-->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="com.mysql.jdbc.Driver"/>
        <property name="jdbcUrl" value="jdbc:mysql:///day17?useSSL=true"/>
        <property name="user" value="root"/>
        <property name="password" value="123456"/>
        <property name="initialPoolSize" value="3"/>
        <property name="maxPoolSize" value="10"/>
        <property name="maxStatements" value="20"/>
        <property name="acquireIncrement" value="2"/>
    </bean>

    <!-- 2 sqlSessionFactoryBean-->
    <bean id="sqlSessionFactoryBean" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="configLocation" value="classpath:mybatis/mybatis.xml"/>
        <property name="dataSource" ref="dataSource"/>
    </bean>

    <!-- 3 dao/service -->
    <bean id="studentDao" class="com.huitong.dao.StudentDao">
        <property name="sqlSessionFactory" ref="sqlSessionFactoryBean"/>
    </bean>

    <bean id="studentService" class="com.huitong.service.StudentService">
        <property name="studentDao" ref="studentDao"/>
    </bean>
    

    <!-- 4 scan -->
    <context:component-scan base-package="com.huitong.action"/>

    <!-- 5 transaction -->
    <!-- 5.1 txManager -->
    <bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"/>
    </bean>

    <!-- 5.2 txAdvice -->
    <tx:advice id="txAdvice" transaction-manager="txManager">
        <tx:attributes>
            <tx:method name="get*" read-only="true"/>
            <tx:method name="query*" read-only="true"/>
            <tx:method name="*"/>
        </tx:attributes>
    </tx:advice>

    <!-- 5.3 AOP -->
    <aop:config>
        <aop:pointcut id="pt" expression="execution(* com.huitong.service.*.*(..))"/>
        <aop:advisor advice-ref="txAdvice" pointcut-ref="pt"/>

    </aop:config>

    <!-- 6 internalResourceViewResolver -->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/jsp/"/>
        <property name="suffix" value=".jsp"/>

    </bean>
    
    <mvc:interceptors>
        <mvc:interceptor>
            <!-- 先匹配所有路径，然后排除不需要检查的路径 -->
            <mvc:mapping path="/**"/>

            <!-- 与登录相关的请求 -->
            <mvc:exclude-mapping path="/*.jsp"/>
            <mvc:exclude-mapping path="/student/login.action"/>
            <mvc:exclude-mapping path="/student/register.action"/>

            <!-- 以下是静态资源 -->
            <mvc:exclude-mapping path="/images/**" />
            <mvc:exclude-mapping path="/css/**" />
            <mvc:exclude-mapping path="/font/**" />
            <mvc:exclude-mapping path="/js/**" />
            <mvc:exclude-mapping path="/datepicker/**" />

            <!-- 用户是否已经登录的检查bean -->
            <bean class="com.huitong.util.StudentAuth"/>
                
        </mvc:interceptor>
    </mvc:interceptors>

</beans>

10 项目部署，这几步很关键。可以参考 图文详解 IntelliJ IDEA 15 创建普通 Java Web 项目

常见问题

1 maven项目中java文件夹不能新建package和class，需要做如下设置

2 在idea中安装mybatis插件

选择file -> setting -> plugins，搜索mybatis，这时因为没有安装过插件，所以会出现如图所示：

点击Browse，这是会弹出如下窗口，intellij idea会自动从网络搜索插件，方便下载，如图所示：

点击Install plugin即可自动下载安装，之后重启intellij idea即可。

3 在进行mapper文件映射时出现 URI is not registered.解决办法如下

鼠标点击红色字，然后Intellij出现小红灯，选择Fetch external resource即可解决 

4 MAVEN项目jar包依赖导入问题解决，

在新建项目后，项目的路径中会生成pom.xml文件和项目名.iml文件。新建项目后，IDEA不会自动刷新Maven的依赖。刷新Maven配置的方法为：

（1）右键单击项目；

（2）在弹出菜单中选择Maven|Reimport菜单项。

此时，IDEA将通过网络自动下载相关依赖，并存放在Maven的本地仓库中。