idea建立Maven版的ssm項目

要使用idea建立一個maven項目,首先電腦安裝maven,maven下載地址:http://maven.apache.org/download.cgihtml

一、打開idea,選擇建立一個新項目,選擇maven建立java

選擇jdk版本,不須要選擇create from archetype,不然你會極可能沒有src包或者scr下的main/java等包。點擊下一步mysql


 二、輸入Nama(項目名稱),groupid(項目的包名),artifactid(項目名,與Name一致),Version不用管,而後點擊下一步完成建立。web


 三、建立完成後,初始的目錄結構是這樣的,spring

 

此時的項目裏面沒有web文件夾,咱們須要本身去添加。sql

點擊工具欄的該圖標,進入如下頁面數據庫

 

而後選擇左側欄裏的Modules,點擊添加,選擇web,如圖:express

 

 

完成後在java文件夾裏面添加pojo、service等包,結構以下圖apache

 

 


 

4.在pom.xml中引入ssm須要的相關依賴api

<?xml version="1.0" encoding="UTF-8"?>
<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/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>om.mysjz</groupId>
    <artifactId>maven-test</artifactId>
    <version>1.0-SNAPSHOT</version>
    <properties>
         <!--設置項目編碼編碼-->
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
                <maven.compiler.source>1.7</maven.compiler.source>
                <maven.compiler.target>1.7</maven.compiler.target>
        <!-- spring版本號 方便在下面的依賴中進行引用-->
        <spring.version>4.3.5.RELEASE</spring.version>
        <!-- mybatis版本號 方便在下面的依賴中進行引用-->
        <mybatis.version>3.4.1</mybatis.version>
    </properties>
    <!-- 配置阿里雲倉庫,要否則從中央maven庫下載很慢-->
        <repositories>
            <repository>
                <id>nexus-aliyun</id>
                <name>nexus-aliyun</name>
                <url>http://maven.aliyun.com/nexus/content/groups/public/</url>
                <releases>
                    <enabled>true</enabled>
                </releases>
                <snapshots>
                    <enabled>false</enabled>
                </snapshots>
            </repository>
        </repositories>
    <!-- 添加項目裏面的依賴 -->
    <dependencies>
        <!-- java ee -->
        <dependency>
            <groupId>javax</groupId>
            <artifactId>javaee-api</artifactId>
            <version>7.0</version>
        </dependency>
        <!-- log4j日誌 -->
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.17</version>
        </dependency>
        <!-- 單元測試 -->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
        </dependency>
        <!-- 實現slf4j接口並整合 -->
        <dependency>
            <groupId>ch.qos.logback</groupId>
            <artifactId>logback-classic</artifactId>
            <version>1.2.2</version>
        </dependency>
        <!-- JSON -->
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
            <version>2.8.7</version>
        </dependency>
        <!-- 數據庫 -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.15</version>
            <scope>runtime</scope>
        </dependency>
        <!-- 數據庫鏈接池 -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.0.8</version>
        </dependency>
        <!-- MyBatis -->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>${mybatis.version}</version>
        </dependency>
        <!-- mybatis/spring整合包 -->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>1.3.1</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aop</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <!-- aop的配置 -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aspects</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjrt</artifactId>
            <version>1.6.11</version>
        </dependency>
        <dependency>
            <groupId>cglib</groupId>
            <artifactId>cglib</artifactId>
            <version>2.1_3</version>
        </dependency>
        <!-- Spring -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-beans</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.springframework/spring-context-support -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context-support</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-tx</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-webmvc</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>commons-fileupload</groupId>
            <artifactId>commons-fileupload</artifactId>
            <version>1.2.1</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/commons-io/commons-io -->
        <dependency>
            <groupId>commons-io</groupId>
            <artifactId>commons-io</artifactId>
            <version>2.4</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/commons-logging/commons-logging -->
        <dependency>
            <groupId>commons-logging</groupId>
            <artifactId>commons-logging</artifactId>
            <version>1.2</version>
        </dependency>
    </dependencies>
       <build>
           <finalName>springspringmvcmybatis</finalName>
           <pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
               <plugins>
                   <plugin>
                       <groupId>org.apache.maven.plugins</groupId>
                       <artifactId>maven-compiler-plugin</artifactId>
                       <configuration>
                           <!-- 設置JDK版本 -->
                           <source>13</source>
                           <target>13</target>
                       </configuration>
                   </plugin>
               </plugins>
           </pluginManagement>
       </build>
</project>

5.在resource目錄下建立一個mybatisconfig文件,用於配置Mybatis.xml文件,命名爲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>
    <!-- 這裏面你能夠配置一下關於JavaBean中類的一些別名,這樣就方便在以後的Mapper文件中進行處理,包括開啓下劃線轉駝峯命名 -->
    <typeAliases>
        <package name="com.mysjz.pojo"/>
    </typeAliases>
</configuration>

6.在resource目錄下建立一個mapperxmlconfig文件,用於存放mybatis的mapper映射文件

7.在resource目錄下建立一個springconfig的文件,這裏存放以後的關於spring的一些配置文件;

(1)在springconfig文件中,建立applicationContext-dao.xml文件,主要是配置:加載properties文件,數據源,SqlSessionFactory,Mapper掃描。

<?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"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans.xsd
       http://www.springframework.org/schema/context
       http://www.springframework.org/schema/context/spring-context.xsd ">

    <!-- 配置 讀取properties文件 jdbc.properties -->
    <context:property-placeholder location="classpath:jdbc.properties" />
    <!-- 自動掃描全部的註解 -->
    <context:component-scan base-package="com.mysjz"/>

    <!-- 配置阿里的druid數據源 -->
    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
        <property name="driverClassName" value="${jdbc.driver}" />
        <property name="url" value="${jdbc.url}" />
        <property name="username" value="${jdbc.username}" />
        <property name="password" value="${jdbc.password}" />
    </bean>

    <!-- 配置SqlSessionFactory -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <!-- 設置數據源 -->
        <property name="dataSource" ref="dataSource"/>
        <!-- 設置MyBatis核心配置文件 -->
        <property name="configLocation" value="classpath:mybatisconfig/SqlMapConfig.xml" />
        <!-- 設置掃描mapper.xml文件 -->
        <property name="mapperLocations" value="classpath:mapperxmlconfig/*Mapper.xml"/>
    </bean>

    <!-- 配置Mapper層java類掃描 -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <!-- 設置Mapper掃描包 -->
        <property name="basePackage" value="com.mysjz.mapper" />
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
    </bean>

</beans>

剛開始建立時掃描mapper.xml文件的value可能會報錯,是由於mapperxmlconfig.xml中沒有以Mapper結尾的xml文件,能夠先不用管或者註釋掉,當開始寫項目的時候再往裏面添加。

(2)在springconfig文件中,建立管理service層的文件,主要是對service包開啓掃描。命名爲applicationContext-service.xml。(也能夠將該掃描步驟添加至dao層的配置文件中)

<?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:aop="http://www.springframework.org/schema/aop"
       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/context
        http://www.springframework.org/schema/context/spring-context.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.xsd">
  <!-- 配置Service掃描,不配置也能夠,直接在dao層用一個總的掃描類便可 -->
  <context:component-scan base-package="com.mysjz.service"/>
</beans>

(3)在springconfig文件中,建立管理transaction層的applicationContext-transaction.xml配置文件,主要用於事務以及切面AOP的管理

<?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:aop="http://www.springframework.org/schema/aop"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       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/context
        http://www.springframework.org/schema/context/spring-context.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.xsd
        http://www.springframework.org/schema/tx
        http://www.springframework.org/schema/tx/spring-tx.xsd">
  <!--添加spring-dao層配置文件-->
  <import resource="applicationContext-dao.xml"/>

  <!-- 事務管理器 -->
  <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
    <!-- 數據源 -->
    <property name="dataSource" ref="dataSource" />
  </bean>

  <!-- 事務模板對象 -->
  <bean name="transactionTemplate" class="org.springframework.transaction.support.TransactionTemplate" >
    <property name="transactionManager" ref="transactionManager" />
  </bean>

  <!-- 通知 -->
  <tx:advice id="txAdvice" transaction-manager="transactionManager">
    <tx:attributes>
      <tx:method name="save*"/>
      <tx:method name="add*"/>
      <tx:method name="insert*"/>
      <tx:method name="update*"/>
      <tx:method name="delete*"/>
    </tx:attributes>
  </tx:advice>
  <!-- 切面 -->
  <aop:config>
    <aop:pointcut id="txpc" expression="execution(* com.mysjz.service.impl.*.*(..))"/>
    <aop:advisor advice-ref="txAdvice" pointcut-ref="txpc"/>
  </aop:config>
  <!--
    若是嫌棄上面的配置太麻煩,想在service不一樣的類進行不一樣的事務控制,那麼就用下面的配置
    可是要注意:須要在service的類中進行手動的添加@Transactional註解,而用上面的話就不須要進行額外的配置了

     配置基於註解的聲明式事務
    <tx:annotation-driven transaction-manager="transactionManager"/>
    -->
</beans>

8.在resource文件目錄下,建立數據庫的properties文件,這個就是鏈接數據庫對應的內容,由於我使用的mysql是8以上的,若是版本是5左右的,驅動配置應該是

jdbc.driver=com.mysql.jdbc.Dirver

jdbc.driver=com.mysql.cj.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/數據庫名?characterEncoding=utf-8&zeroDateTimeBehavior=convertToNull
jdbc.username=用戶
jdbc.password=密碼

9.在resource文件目錄下,建立數據庫的log4j.properties文件,這個就是爲了顯示更好的打印日誌信息

# Global logging configuration
log4j.rootLogger=DEBUG, stdout
# Console output...
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%5p [%t] - %m%n

10.在resource目錄下,建立springmvcconfig文件目錄,用於配置springMVC的配置文件,並建立命名爲springmvc.xml(主要:Controller掃描、註解驅動、視圖解析器)

<?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:aop="http://www.springframework.org/schema/aop"
       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/context
        http://www.springframework.org/schema/context/spring-context.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.xsd">
  <!-- 配置Controller掃描 -->
  <context:component-scan base-package="com.mysjz.controller"/>

  <!-- 配置註解驅動 -->
  <mvc:annotation-driven />

  <!-- 視圖解析器 -->
  <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" id="internalResourceViewResolver">
    <!-- 設置屬性 -->
    <property name="prefix" value="/WEB-INF/jsp/"/>
    <property name="suffix" value=".jsp"/>
  </bean>

  <mvc:default-servlet-handler/>
  <context:annotation-config/>
<!-- 文件上傳配置 -->
  <bean id="multipartResolver"
        class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
    <property name="maxUploadSize" value="104857600" />
    <property name="maxInMemorySize" value="4096" />
    <property name="defaultEncoding" value="utf-8"/>

  </bean>
</beans>

11.配置web.xml文件(主要:配置Spring、SpringMVC、解決post亂碼問題)

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
         version="3.1">
    <display-name>Archetype Created Web Application</display-name>

    <!--配置項目啓動的時候加載spring的相關配置文件-->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:springconfig/applicationContext-*.xml</param-value>
    </context-param>
    <!--配置監聽器加載spring-->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
    <!--配置過濾器,解決post亂碼問題-->
    <filter>
        <filter-name>encoding</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>encoding</filter-name>
        <url-pattern>*</url-pattern>
    </filter-mapping>
    <!--配置springmvc-->
    <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:springmvcconfig/springmvc-servlet.xml</param-value>
        </init-param>
        <!-- 配置springmvc何時啓動,參數必須爲整數 -->
        <!-- 若是爲0或者大於0,則springMVC隨着容器啓動而啓動 -->
        <!-- 若是小於0,則在第一次請求進來的時候啓動 -->
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>springmvc</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>
    <!-- 默認訪問的頁面 -->
    <welcome-file-list>
        <welcome-file>index.jsp</welcome-file>
    </welcome-file-list>
</web-app>

以上就是使用idea建立一個maven項目的基本配置,能夠啓動tomcat服務器試試。

可能會出現如下的某種錯誤信息

Error configuring application listener of class org.springframework.web.context.ContextLoaderListener java.lang.ClassNotFoundException: org.springframework.web.context.ContextLoaderListener

解決辦法,打開一下頁面,進行如圖操做

若有其餘依賴加載錯誤有多是依賴衝突,能夠在idea的plugins添加maven helper插件,而後在pom.xml中點擊下方Dependency Analyzer查看依賴狀況。

下一篇:maven項目使用逆向工程生成實體類和mapper相關簡單配置

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