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IDEA 创建Spring + SpringMVC + MyBatis整合maven项目

2017-09-10 14:59 896 查看


1. 创建maven项目

1.1 File -> New Module,进入创建项目窗口。



1.2 点击Next,填写GroupId、ArtifactId和Version



1.3 接着下一步,这里需要注在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。



1.4
填写Module name



1.5 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,我把项目所需要的文件都编写完成之后,项目的工程结构如图。



到此为止,项目的框架基本搭建完成,下面重点说一下项目的配置文件




2. 项目配置文件

2.1
这里使用maven来引入项目所需要的jar包,所以也就不需要手动来管理jar包了。

pom.xml

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<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.heitian.web</groupId>

<artifactId>web-ssm</artifactId>

<packaging>war</packaging>

<version>1.0-SNAPSHOT</version>

<name>web-ssm 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>4.2.5.RELEASE</spring.version>

<!-- mybatis版本号 -->

<mybatis.version>3.2.8</mybatis.version>

<!-- mysql驱动版本号 -->

<mysql-driver.version>5.1.29</mysql-driver.version>

<!-- log4j日志包版本号 -->

<slf4j.version>1.7.18</slf4j.version>

<log4j.version>1.2.17</log4j.version>

</properties>

<dependencies>

<!-- 添加jstl依赖 -->

<dependency>

<groupId>jstl</groupId>

<artifactId>jstl</artifactId>

<version>1.2</version>

</dependency>

<dependency>

<groupId>javax</groupId>

<artifactId>javaee-api</artifactId>

<version>7.0</version>

</dependency>

<!-- 添加junit4依赖 -->

<dependency>

<groupId>junit</groupId>

<artifactId>junit</artifactId>

<version>4.11</version>

<!-- 指定范围,在测试时才会加载 -->

<scope>test</scope>

</dependency>

<!-- 添加spring核心依赖 -->

<dependency>

<groupId>org.springframework</groupId>

<artifactId>spring-core</artifactId>

<version>${spring.version}</version>

</dependency>

<dependency>

<groupId>org.springframework</groupId>

<artifactId>spring-web</artifactId>

<version>${spring.version}</version>

</dependency>

<dependency>

<groupId>org.springframework</groupId>

<artifactId>spring-oxm</artifactId>

<version>${spring.version}</version>

</dependency>

<dependency>

<groupId>org.springframework</groupId>

<artifactId>spring-tx</artifactId>

<version>${spring.version}</version>

</dependency>

<dependency>

<groupId>org.springframework</groupId>

<artifactId>spring-jdbc</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</artifactId>

<version>${spring.version}</version>

</dependency>

<dependency>

<groupId>org.springframework</groupId>

<artifactId>spring-context-support</artifactId>

<version>${spring.version}</version>

</dependency>

<dependency>

<groupId>org.springframework</groupId>

<artifactId>spring-aop</artifactId>

<version>${spring.version}</version>

</dependency>

<dependency>

<groupId>org.springframework</groupId>

<artifactId>spring-test</artifactId>

<version>${spring.version}</version>

</dependency>

<!-- 添加mybatis依赖 -->

<dependency>

<groupId>org.mybatis</groupId>

<artifactId>mybatis</artifactId>

<version>${mybatis.version}</version>

</dependency>

<!-- 添加mybatis/spring整合包依赖 -->

<dependency>

<groupId>org.mybatis</groupId>

<artifactId>mybatis-spring</artifactId>

<version>1.2.2</version>

</dependency>

<!-- 添加mysql驱动依赖 -->

<dependency>

<groupId>mysql</groupId>

<artifactId>mysql-connector-java</artifactId>

<version>${mysql-driver.version}</version>

</dependency>

<!-- 添加数据库连接池依赖 -->

<dependency>

<groupId>commons-dbcp</groupId>

<artifactId>commons-dbcp</artifactId>

<version>1.2.2</version>

</dependency>

<!-- 添加fastjson -->

<dependency>

<groupId>com.alibaba</groupId>

<artifactId>fastjson</artifactId>

<version>1.1.41</version>

</dependency>

<!-- 添加日志相关jar包 -->

<dependency>

<groupId>log4j</groupId>

<artifactId>log4j</artifactId>

<version>${log4j.version}</version>

</dependency>

<dependency>

<groupId>org.slf4j</groupId>

<artifactId>slf4j-api</artifactId>

<version>${slf4j.version}</version>

</dependency>

<dependency>

<groupId>org.slf4j</groupId>

<artifactId>slf4j-log4j12</artifactId>

<version>${slf4j.version}</version>

</dependency>

<!-- log end -->

<!-- 映入JSON -->

<dependency>

<groupId>org.codehaus.jackson</groupId>

<artifactId>jackson-mapper-asl</artifactId>

<version>1.9.13</version>

</dependency>

<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-core -->

<dependency>

<groupId>com.fasterxml.jackson.core</groupId>

<artifactId>jackson-core</artifactId>

<version>2.8.0</version>

</dependency>

<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-databind -->

<dependency>

<groupId>com.fasterxml.jackson.core</groupId>

<artifactId>jackson-databind</artifactId>

<version>2.8.0</version>

</dependency>

<dependency>

<groupId>commons-fileupload</groupId>

<artifactId>commons-fileupload</artifactId>

<version>1.3.1</version>

</dependency>

<dependency>

<groupId>commons-io</groupId>

<artifactId>commons-io</artifactId>

<version>2.4</version>

</dependency>

<dependency>

<groupId>commons-codec</groupId>

<artifactId>commons-codec</artifactId>

<version>1.9</version>

</dependency>

</dependencies>

<build>

<finalName>web-ssm</finalName>

</build>

</project>

2.2 新建jdbc.properties文件

jdbc.properties

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driverClasss=com.mysql.jdbc.Driver

jdbcUrl=jdbc:mysql://localhost:3306/db_ssm?useUnicode=true&characterEncoding=utf-8&zeroDateTimeBehavior=convertToNull

username=root

password=root

#定义初始连接数

initialSize=0

#定义最大连接数

maxActive=20

#定义最大空闲

maxIdle=20

#定义最小空闲

minIdle=1

#定义最长等待时间

maxWait=60000

2.3 新建log4j 配置文件

log4j.properties

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log4j.rootLogger=INFO,Console,File

#控制台日志

log4j.appender.Console=org.apache.log4j.ConsoleAppender

log4j.appender.Console.Target=System.out

log4j.appender.Console.layout=org.apache.log4j.PatternLayout

log4j.appender.Console.layout.ConversionPattern=[%p][%t][%d{yyyy-MM-dd HH\:mm\:ss}][%C] - %m%n

#普通文件日志

log4j.appender.File=org.apache.log4j.RollingFileAppender

log4j.appender.File.File=logs/ssm.log

log4j.appender.File.MaxFileSize=10MB

#输出日志,如果换成DEBUG表示输出DEBUG以上级别日志

log4j.appender.File.Threshold=ALL

log4j.appender.File.layout=org.apache.log4j.PatternLayout

log4j.appender.File.layout.ConversionPattern=[%p][%t][%d{yyyy-MM-dd HH\:mm\:ss}][%C] - %m%n

2.4 新建springmvc配置文件

spring-mvc.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:p="http://www.springframework.org/schema/p"

xmlns:context="http://www.springframework.org/schema/context"

xmlns:mvc="http://www.springframework.org/schema/mvc"

xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-4.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">
<!-- 自动扫描 @Controller-->

<context:component-scan base-package="com.heitian.ssm.controller"/>

<!--避免IE执行AJAX时,返回JSON出现下载文件 -->

<bean id="mappingJacksonHttpMessageConverter"

class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">

<property name="supportedMediaTypes">

<list>

<value>text/html;charset=UTF-8</value>

</list>

</property>

</bean>

<!-- 启动SpringMVC的注解功能,完成请求和注解POJO的映射 -->

<bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">

<property name="messageConverters">

<list>

<ref bean="mappingJacksonHttpMessageConverter"/> <!-- JSON转换器 -->

</list>

</property>

</bean>

<!-- 定义跳转的文件的前后缀 ,视图模式配置 -->

<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">

<property name="prefix" value="/WEB-INF/jsp/" />

<property name="suffix" value=".jsp"/>

</bean>

<!-- 文件上传配置 -->

<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">

<!-- 默认编码 -->

<property name="defaultEncoding" value="UTF-8"/>

<!-- 上传文件大小限制为31M,31*1024*1024 -->

<property name="maxUploadSize" value="32505856"/>

<!-- 内存中的最大值 -->

<property name="maxInMemorySize" value="4096"/>

</bean>

</beans>

2.5 新建spring和mybatis整合所需的配置文件

spring-mybatis.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" xmlns:tx="http://www.springframework.org/schema/tx"

xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.1.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">
<!-- 自动扫描 -->

<context:component-scan base-package="com.heitian.ssm"/>

<!-- 第一种方式:加载一个properties文件 -->

<bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">

<property name="location" value="classpath:jdbc.properties"/>

</bean>

<!-- 第二种方式:加载多个properties文件

<bean id="configProperties" class="org.springframework.beans.factory.config.PropertiesFactoryBean">

<property name="locations">

<list>

<value>classpath:jdbc.properties</value>

<value>classpath:common.properties</value>

</list>

</property>

<property name="fileEncoding" value="UTF-8"/>

</bean>

<bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PreferencesPlaceholderConfigurer">

<property name="properties" ref="configProperties"/>

</bean>

-->

<!-- 配置数据源 -->

<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"

destroy-method="close">

<property name="driverClassName" value="${driverClasss}"/>

<property name="url" value="${jdbcUrl}"/>

<property name="username" value="${username}"/>

<property name="password" value="${password}"/>

<!-- 初始化连接大小 -->

<property name="initialSize" value="${initialSize}"></property>

<!-- 连接池最大数量 -->

<property name="maxActive" value="${maxActive}"></property>

<!-- 连接池最大空闲 -->

<property name="maxIdle" value="${maxIdle}"></property>

<!-- 连接池最小空闲 -->

<property name="minIdle" value="${minIdle}"></property>

<!-- 获取连接最大等待时间 -->

<property name="maxWait" value="${maxWait}"></property>

</bean>

<!-- mybatis和spring完美整合,不需要mybatis的配置映射文件 -->

<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">

<property name="dataSource" ref="dataSource"/>

<!-- 自动扫描mapping.xml文件 -->

<property name="mapperLocations" value="classpath:mapping/*.xml"></property>

</bean>

<!-- DAO接口所在包名,Spring会自动查找其下的类 -->

<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">

<property name="basePackage" value="com.heitian.ssm.dao"/>

<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>

</bean>

<!-- (事务管理)transaction manager, use JtaTransactionManager for global tx -->

<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">

<property name="dataSource" ref="dataSource"/>

</bean>

<!-- (事务管理)transaction manager, use JtaTransactionManager for global tx -->

<tx:annotation-driven transaction-manager="transactionManager"/>

</beans>

2.6 web.xml配置文件

web.xml

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<?xml version="1.0" encoding="UTF-8"?>

<web-app xmlns="http://java.sun.com/xml/ns/javaee"

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

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>web-ssm</display-name>

<context-param>

<param-name>contextConfigLocation</param-name>

<param-value>classpath:spring-mybatis.xml</param-value>

</context-param>

<context-param>

<param-name>log4jConfigLocation</param-name>

<param-value>classpath:log4j.properties</param-value>

</context-param>

<!-- 编码过滤器 -->

<filter>

<filter-name>encodingFilter</filter-name>

<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>

<init-param>

<param-name>encoding</param-name>

<param-value>UTF-8</param-value>

</init-param>

</filter>

<filter-mapping>

<filter-name>encodingFilter</filter-name>

<url-pattern>/*</url-pattern>

</filter-mapping>

<!-- spring监听器 -->

<listener>

<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>

</listener>

<!-- 防止spring内存溢出监听器,比如quartz -->

<listener>

<listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>

</listener>

<!-- spring mvc servlet-->

<servlet>

<servlet-name>SpringMVC</servlet-name>

<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>

<init-param>

<param-name>contextConfigLocation</param-name>

<param-value>classpath:spring-mvc.xml</param-value>

</init-param>

<load-on-startup>1</load-on-startup>

<async-supported>true</async-supported>

</servlet>

<servlet-mapping>

<servlet-name>SpringMVC</servlet-name>

<!-- 此处也可以配置成 *.do 形式 -->

<url-pattern>/</url-pattern>

</servlet-mapping>

<welcome-file-list>

<welcome-file>/index.jsp</welcome-file>

</welcome-file-list>

<!-- session配置 -->

<session-config>

<session-timeout>15</session-timeout>

</session-config>

</web-app>


3. 项目配置和部署

3.1 File -> Project Structure,进入创建项目配置窗口。



3.2 创建一个Tomcat容器实例,并把项目部署进去



3.3 项目所需配置好项目访问的根路径,然后启动Tomcat。



3.4 在浏览器地址栏中输入:http://localhost:8080/web-ssm/user/showUser



3.5 项目所需看到图中显示效果,则表示项目搭建成功。


4. 值得注意的地方

搭建好项目的框架之后,启动Tomcat,如果访问 http://localhost:8080/user/showUser 出现如下错误:



出现这个错误是因为少了依赖的jar包,只要在pom文件中添加如下依赖即可。

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<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-core -->

<dependency>

<groupId>com.fasterxml.jackson.core</groupId>

<artifactId>jackson-core</artifactId>

<version>2.8.0</version>

</dependency>

<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-databind -->

<dependency>

<groupId>com.fasterxml.jackson.core</groupId>

<artifactId>jackson-databind</artifactId>

<version>2.8.0</version>

</dependency>
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