接触后台框架------使用IDEA进行ssm框架搭建
文章目录
- 前言
- 一、创建父级项目
- 二、创建子模块
- 三、父级的pom.xml配置
- 四、各模块的pom.xml配置。==注意各级依赖的groupId和artifactId。==
- 1、dao层
- 2、service层
- 3、web层
- 五、dao层添加mybatis和spring相关配置
- 六、service层添加log4j和spring相关配置
- 七、web层添加相关文件及配置
- 八、测试运行
- 九、总结。
前言
初始使用ssm框架，记录一下搭建过程。
IDE环境：IDEA+JDK1.8+maven3.5.3+tomcat8.5.29
一、创建父级项目
首先创建父级项目，若是刚打开IDEA就点击create new project，打开有项目的就直接选择File->new->project。创建一个maven项目。GroupId一般以域开头，倒序进行填写(这里我是用自己的域名进行填写的)，ArtifactId就填写自己的项目名称。
创建成功后删除src文件夹，idea文件夹也可以不用删。右下角选择自动导入依赖包。
二、创建子模块
模块分为三层：持久层(dao层)，业务层(service层)以及展现层(web层)。分别进行创建。(这里只演示dao层的创建)。
特别提醒：创建web蹭的时候将web里面的src.main里面的resources文件夹删除(不需要),并在其pom.xml文件中添加其打包方式为war。
三、父级的pom.xml配置
將下列代码复制添加进文件中(里面标记了每个标签的用处，有些只属于个人理解)。记得修改最后的打包文件名称。(如果jdk、maven等版本不一样记得修改正确对应版本号)
<properties>
<project.build.sourceEncoding>UTF-8project.build.sourceEncoding>
<java.version>1.8java.version>
<spring.version>5.0.6.RELEASEspring.version>
properties>
<dependencies>
<dependency>
<groupId>org.apache.logging.log4jgroupId>
<artifactId>log4j-apiartifactId>
<version>2.11.0version>
dependency>
<dependency>
<groupId>org.apache.logging.log4jgroupId>
<artifactId>log4j-coreartifactId>
<version>2.11.0version>
dependency>
<dependency>
<groupId>org.slf4jgroupId>
<artifactId>slf4j-apiartifactId>
<version>1.7.5version>
dependency>
<dependency>
<groupId>org.slf4jgroupId>
<artifactId>slf4j-log4j12artifactId>
<version>1.7.5version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-beansartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-contextartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-coreartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-aopartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-aspectsartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-jdbcartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-txartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>junitgroupId>
<artifactId>junitartifactId>
<version>4.12version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-testartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>com.alibabagroupId>
<artifactId>fastjsonartifactId>
<version>1.2.41version>
dependency>
dependencies>
<build>
<finalName>ssm-helloworldfinalName>
<plugins>
<plugin>
<groupId>org.apache.maven.pluginsgroupId>
<artifactId>maven-compiler-pluginartifactId>
<version>3.7.0version>
<configuration>
<source>${java.version}source>
<target>${java.version}target>
<encoding>UTF-8encoding>
configuration>
plugin>
<plugin>
<groupId>org.apache.maven.pluginsgroupId>
<artifactId>maven-project-info-reports-pluginartifactId>
<version>2.9version>
plugin>
<plugin>
<groupId>org.apache.maven.pluginsgroupId>
<artifactId>maven-surefire-pluginartifactId>
<version>2.21.0version>
<configuration>
<skipTests>trueskipTests>
configuration>
plugin>
plugins>
build>
四、各模块的pom.xml配置。注意各级依赖的groupId和artifactId。
1、dao层
<dependencies>
<dependency>
<groupId>fun.modxue.eteamgroupId>
<artifactId>ssm-hellowordartifactId>
<version>1.0-SNAPSHOTversion>
dependency>
<dependency>
<groupId>org.mybatisgroupId>
<artifactId>mybatisartifactId>
<version>3.2.8version>
dependency>
<dependency>
<groupId>org.mybatisgroupId>
<artifactId>mybatis-springartifactId>
<version>1.3.0version>
dependency>
<dependency>
<groupId>org.mybatis.generatorgroupId>
<artifactId>mybatis-generator-coreartifactId>
<version>1.3.2version>
dependency>
<dependency>
<groupId>mysqlgroupId>
<artifactId>mysql-connector-javaartifactId>
<version>5.1.45version>
dependency>
<dependency>
<groupId>com.alibabagroupId>
<artifactId>druidartifactId>
<version>1.0.9version>
dependency>
dependencies>
<build>
<resources>
<resource>
<directory>src/main/javadirectory>
<includes>
<include>**/*.propertiesinclude>
<include>**/*.xmlinclude>
includes>
<filtering>falsefiltering>
resource>
<resource>
<directory>src/main/resourcesdirectory>
<includes>
<include>**/*.propertiesinclude>
<include>**/*.xmlinclude>
includes>
<filtering>falsefiltering>
resource>
resources>
build>
2、service层
<dependencies>
<dependency>
<groupId>fun.modxue.eteamgroupId>
<artifactId>ssm-daoartifactId>
<version>1.0-SNAPSHOTversion>
dependency>
dependencies>
<build>
<resources>
<resource>
<directory>src/main/javadirectory>
<includes>
<include>**/*.xmlinclude>
includes>
resource>
<resource>
<directory>src/main/resourcesdirectory>
<includes>
<include>**/*.xmlinclude>
includes>
resource>
resources>
build>
3、web层
<dependencies>
<dependency>
<groupId>fun.modxue.eteamgroupId>
<artifactId>ssm-serviceartifactId>
<version>1.0-SNAPSHOTversion>
dependency>
<dependency>
<groupId>javax.servletgroupId>
<artifactId>javax.servlet-apiartifactId>
<version>3.1.0version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-webartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-webmvcartifactId>
<version>${spring.version}version>
dependency>
dependencies>
<build>
<resources>
<resource>
<directory>src/main/webapp/WEB-INF/configdirectory>
<includes>
<include>**/*.xmlinclude>
<include>**/*.propertiesinclude>
includes>
<filtering>falsefiltering>
resource>
resources>
build>
五、dao层添加mybatis和spring相关配置
在src.main.resources下添加mybatis和spring文件夹，在mybatis下创建mybatis-config.xml，在spring下创建applicationContext-dao.xml和dataSource.properties。
mybatis-config.xml（驼峰命名例子：数据库中有个字段为user_name,在实体中定义一个userName可以与之相对应。将下滑杠匹配为下滑杠后首字母大写并去除下滑杠）
<configuration>
<settings>
<setting name="mapUnderscoreToCamelCase" value="true"/>
settings>
configuration>
dataSource.properties（此处数据库为本地自己创建的）
driverClassName = com.mysql.jdbc.Driver
mysql.url = jdbc:mysql://localhost:3306/数据库名称?useSSL=false
mysql.userName = 账户名称
mysql.password = 密码
applicationContext-dao.xml
<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:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.2.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.2.xsd">
<context:component-scan base-package="fun.modxue.eteam.dao.*" />
<context:property-placeholder location="classpath:/spring/dataSource.properties" />
<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close"
p:driverClassName="${driverClassName}"
p:url="${mysql.url}"
p:username="${mysql.userName}"
p:password="${mysql.password}" />
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="mapperLocations" value="classpath:mappers/**/*.xml" />
<property name="configLocation" value="classpath:mybatis/mybatis-config.xml"/>
bean>
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="fun.modxue.eteam.dao.**" />
bean>
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource" />
bean>
<tx:annotation-driven/>
beans>
==ps：==配置中有几处报错是因为不存在某些文件夹，所以为了之后保证完好运行测试需要补充下文件。文件中不需要多写东西也可。在dao层src.main.java中创建在applicationContext-dao.xml中声明扫描的类包文件夹(建立盛放接口和实体文件的文件夹)。在src.main.resources中添加mappers文件夹。
mapper文件的模板
<mapper namespace="mapper接口路径">
mapper>
六、service层添加log4j和spring相关配置
在src.main.resources下添加spring文件夹和log4j.properties、log4j2.xml文件，spring文件夹下添加applicationContext-service.xml文件
log4j.properties
### set log levels ###
log4j.rootLogger = debug,stdout,D,E
log4j.appender.stdout = org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target = System.out
log4j.appender.stdout.layout = org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern = [%-5p] %d{yyyy-MM-dd HH:mm:ss,SSS} method:%l%n%m%n
log4j.appender.D = org.apache.log4j.DailyRollingFileAppender
log4j.appender.D.File = build/log/DEBUG/log.log
log4j.appender.D.Append = true
log4j.appender.D.Threshold = DEBUG
log4j.appender.D.layout = org.apache.log4j.PatternLayout
log4j.appender.D.layout.ConversionPattern = %-d{yyyy-MM-dd HH:mm:ss} [ %t:%r ] - [ %p ] %m%n
log4j.appender.E = org.apache.log4j.DailyRollingFileAppender
log4j.appender.E.File =build/log/error.log
log4j.appender.E.Append = true
log4j.appender.E.Threshold = ERROR
log4j.appender.E.layout = org.apache.log4j.PatternLayout
log4j.appender.E.layout.ConversionPattern = %-d{yyyy-MM-dd HH:mm:ss} [ %t:%r ] - [ %p ] %m%n
log4j2.xml
<configuration status="WARN" monitorInterval="30">
<appenders>
<console name="Console" target="SYSTEM_OUT">
<PatternLayout pattern="[%d{HH:mm:ss:SSS}] [%p] - %l - %m%n"/>
console>
<File name="log" fileName="build/log4j2/test.log" append="false">
<PatternLayout pattern="%d{HH:mm:ss.SSS} %-5level %class{36} %L %M - %msg%xEx%n"/>
File>
<RollingFile name="RollingFileInfo" fileName="${sys:user.home}/logs/info.log"
filePattern="${sys:user.home}/logs/$${date:yyyy-MM}/info-%d{yyyy-MM-dd}-%i.log">
<ThresholdFilter level="info" onMatch="ACCEPT" onMismatch="DENY"/>
<PatternLayout pattern="[%d{HH:mm:ss:SSS}] [%p] - %l - %m%n"/>
<Policies>
<TimeBasedTriggeringPolicy/>
<SizeBasedTriggeringPolicy size="100 MB"/>
Policies>
RollingFile>
<RollingFile name="RollingFileWarn" fileName="${sys:user.home}/logs/warn.log"
filePattern="${sys:user.home}/logs/$${date:yyyy-MM}/warn-%d{yyyy-MM-dd}-%i.log">
<ThresholdFilter level="warn" onMatch="ACCEPT" onMismatch="DENY"/>
<PatternLayout pattern="[%d{HH:mm:ss:SSS}] [%p] - %l - %m%n"/>
<Policies>
<TimeBasedTriggeringPolicy/>
<SizeBasedTriggeringPolicy size="100 MB"/>
Policies>
<DefaultRolloverStrategy max="20"/>
RollingFile>
<RollingFile name="RollingFileError" fileName="${sys:user.home}/logs/error.log"
filePattern="${sys:user.home}/logs/$${date:yyyy-MM}/error-%d{yyyy-MM-dd}-%i.log">
<ThresholdFilter level="error" onMatch="ACCEPT" onMismatch="DENY"/>
<PatternLayout pattern="[%d{HH:mm:ss:SSS}] [%p] - %l - %m%n"/>
<Policies>
<TimeBasedTriggeringPolicy/>
<SizeBasedTriggeringPolicy size="100 MB"/>
Policies>
RollingFile>
appenders>
<loggers>
<logger name="org.springframework" level="INFO">logger>
<logger name="org.mybatis" level="INFO">logger>
<root level="all">
<appender-ref ref="Console"/>
<appender-ref ref="RollingFileInfo"/>
<appender-ref ref="RollingFileWarn"/>
<appender-ref ref="RollingFileError"/>
root>
loggers>
configuration>
applicationContext-service.xml
<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:aop="http://www.springframework.org/schema/aop"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.2.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.2.xsd
">
<import resource="classpath*:/spring/applicationContext-dao.xml"/>
<context:component-scan base-package="fun.modxue.eteam.service.*"/>
<aop:config proxy-target-class="true">
<aop:pointcut id="serviceMethod" expression="(execution(* fun.modxue.eteam.service.*..*(..)))
and (@annotation(org.springframework.transaction.annotation.Transactional))"/>
aop:config>
beans>
==ps：==同时在src.main.java下创建一个service文件夹。
七、web层添加相关文件及配置
创建下图中的文件夹及文件(图1),并将config文件标志为资源文件夹(图2，因为标记过了用其他文件夹做实验)
web.xml
<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"
id="WebApp_ID" version="3.0">
<display-name>ssm-helloworddisplay-name>
<context-param>
<param-name>contextConfigLocationparam-name>
<param-value>classpath*:/spring/applicationContext-service.xmlparam-value>
context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListenerlistener-class>
listener>
<filter>
<filter-name>encodingfilter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilterfilter-class>
<init-param>
<param-name>encodingparam-name>
<param-value>UTF-8param-value>
init-param>
<init-param>
<param-name>forceEncodingparam-name>
<param-value>trueparam-value>
init-param>
filter>
<filter-mapping>
<filter-name>encodingfilter-name>
<url-pattern>/*url-pattern>
filter-mapping>
<servlet>
<servlet-name>DispatcherServletservlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServletservlet-class>
<init-param>
<param-name>contextConfigLocationparam-name>
<param-value>classpath:/spring/spring-mvc.xmlparam-value>
init-param>
<load-on-startup>1load-on-startup>
servlet>
<servlet-mapping>
<servlet-name>DispatcherServletservlet-name>
<url-pattern>*.actionurl-pattern>
servlet-mapping>
<servlet-mapping>
<servlet-name>DispatcherServletservlet-name>
<url-pattern>*.htmlurl-pattern>
servlet-mapping>
<servlet-mapping>
<servlet-name>DispatcherServletservlet-name>
<url-pattern>*.cssurl-pattern>
servlet-mapping>
<servlet-mapping>
<servlet-name>DispatcherServletservlet-name>
<url-pattern>*.jsonurl-pattern>
servlet-mapping>
<servlet-mapping>
<servlet-name>DispatcherServletservlet-name>
<url-pattern>*.jsonpurl-pattern>
servlet-mapping>
<servlet-mapping>
<servlet-name>DispatcherServletservlet-name>
<url-pattern>*.jsurl-pattern>
servlet-mapping>
<servlet-mapping>
<servlet-name>DispatcherServletservlet-name>
<url-pattern>*.pngurl-pattern>
servlet-mapping>
<servlet-mapping>
<servlet-name>DispatcherServletservlet-name>
<url-pattern>*.jpgurl-pattern>
servlet-mapping>
<servlet-mapping>
<servlet-name>DispatcherServletservlet-name>
<url-pattern>/resources/*url-pattern>
servlet-mapping>
<welcome-file-list>
<welcome-file>/html/index.htmlwelcome-file>
welcome-file-list>
<filter>
<filter-name>HiddenHttpMethodFilterfilter-name>
<filter-class>org.springframework.web.filter.HiddenHttpMethodFilterfilter-class>
filter>
<filter-mapping>
<filter-name>HiddenHttpMethodFilterfilter-name>
<servlet-name>DispatcherServletservlet-name>
filter-mapping>
web-app>
spring-mvc.xml
<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:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.2.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd"
>
<import resource="classpath*:/spring/applicationContext-service.xml"/>
<context:component-scan base-package="fun.modxue.eteam.controller.*" />
<mvc:annotation-driven/>
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"
p:viewClass="org.springframework.web.servlet.view.JstlView"
p:prefix="/html"
p:contentType="text/html"
p:suffix=".html" />
<mvc:resources mapping="/html/**"
location="/WEB-INF/pages/html/" />
<mvc:resources mapping="/js/**"
location="/WEB-INF/resources/js/" />
<mvc:resources mapping="/css/**"
location="/WEB-INF/resources/css/" />
<mvc:resources mapping="/images/**"
location="/WEB-INF/resources/img/" />
<mvc:resources mapping="/lib/**"
location="/WEB-INF/resources/lib/" />
beans>
最后在index.html文件的body一句helloWord。
八、测试运行
然后执行图1的②
最后点击启动按钮等待就可以看见所配置的index.html页面内容了。
九、总结。
一个ssm框架就此搭成功了，一些配置文件中的注解具体的作用以及原理可以自行去学习(我也在学习中)。