Maven父子工程配置文件詳解

項目骨架搭建成功之後。

因爲父工程管理子工程。子工程相當於繼承於子工程，所以子工程可以調用父工程裏面的東西。那麼就可以將jar包對應的配置文件書寫到父工程的pom.xml文件中，注意：父工程的打包方式爲pom。代碼如下：(如果另有需要可以自己添加所需jar包)。

<?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>com.hd</groupId>
    <artifactId>online_retailers</artifactId>
    <packaging>pom</packaging>
    <version>1.0-SNAPSHOT</version>

    <modules>
        <module>online_pojo</module>
        <module>online_web</module>
        <module>online_dao</module>
        <module>online_service</module>
    </modules>

    <properties>
        <spring.version>5.0.2.RELEASE</spring.version>
        <maven.compiler.source>1.8</maven.compiler.source>
        <maven.compiler.target>1.8</maven.compiler.target>
    </properties>

    <dependencies>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
            <scope>test</scope>
        </dependency>

        <!-- 加入ServletAPI -->
        <!-- https://mvnrepository.com/artifact/javax.servlet/javax.servlet-api -->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>3.1.0</version>
            <scope>provided</scope>
        </dependency>


        <!-- MySQL依賴 start -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.38</version>
        </dependency>

        <!-- MySQL依賴 end -->



        <!-- 加入MyBatis 依賴 start -->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.2.5</version>
        </dependency>
        <!-- 加入MyBatis 依賴 end -->

        <!-- Log4j start -->
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.17</version>
        </dependency>
        <!-- Log4j end -->

        <!-- 引入Spring(包含SpringMVC) 依賴 start -->
        <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>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aop</artifactId>
            <version>${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-test</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjweaver</artifactId>
            <version>1.6.12</version>
        </dependency>

        <!-- 引入Spring 依賴 end -->
        <!-- 使用Json所依賴的jar包 -->

        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-core</artifactId>
            <version>2.9.4</version>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
            <version>2.9.4</version>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-annotations</artifactId>
            <version>2.9.4</version>
        </dependency>
        <!-- 引用c3p0 依賴 start-->
        <dependency>
            <groupId>com.mchange</groupId>
            <artifactId>c3p0</artifactId>
            <version>0.9.2.1</version>
        </dependency>
        <!-- 引用c3p0 依賴 end-->

        <!-- 引用插件依賴：MyBatis整合Spring -->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>1.3.0</version>
        </dependency>

        <!-- JSTL -->
        <dependency>
            <groupId>jstl</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>

    </dependencies>

</project>

SSM框架的項目結構一般分爲pojo、web、service、dao,所以建立父子工程項目結構以及配置文件放置位置如下圖：

Web層：

pom.xml

<?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">

    <parent>

        <artifactId>online_retailers</artifactId>

        <groupId>com.hd</groupId>

        <version>1.0-SNAPSHOT</version>

    </parent>

    <modelVersion>4.0.0</modelVersion>

    <packaging>war</packaging>

    <artifactId>online_web</artifactId>

    <!--依賴-->

    <dependencies>

        <dependency>

            <groupId>com.hd</groupId>

            <artifactId>online_service</artifactId>

            <version>1.0-SNAPSHOT</version>

        </dependency>



        <dependency>

            <groupId>com.hd</groupId>

            <artifactId>online_pojo</artifactId>

            <version>1.0-SNAPSHOT</version>

        </dependency>

    </dependencies>

</project>

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

    <import resource="classpath:applicationContext_dao.xml"></import>
    <import resource="classpath:applicationContext_service.xml"></import>
</beans>

log4j.properties

# Global logging configuration
#在開發環境下日誌級別設置爲debug，生產環境下設置成info或error
#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

log4j.rootLogger=INFO, stdout
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.Threshold=INFO
log4j.appender.stdout.Target=System.out
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d %p [%c,%L] - %m%n

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: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/mvc
        http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context-4.0.xsd">
    <!--開啓註解模式-->
    <context:component-scan base-package="cn.hd.controller"></context:component-scan>

    <!--配置數據轉換器-->
    <mvc:annotation-driven>
        <mvc:message-converters>
            <bean class="org.springframework.http.converter.StringHttpMessageConverter"/>
            <bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter"/>
        </mvc:message-converters>
    </mvc:annotation-driven>
</beans>

Service層：

Pom.xml

<?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">
    <parent>
        <artifactId>online_retailers</artifactId>
        <groupId>com.hd</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>
    <packaging>jar</packaging>
    <artifactId>online_service</artifactId>
    <!--依賴-->
    <dependencies>
        <dependency>
            <groupId>com.hd</groupId>
            <artifactId>online_dao</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>

        <dependency>
            <groupId>com.hd</groupId>
            <artifactId>online_pojo</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>

    </dependencies>

</project>

applicationContext_service.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:tx="http://www.springframework.org/schema/tx"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans.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">

    <import resource="classpath:applicationContext_dao.xml"></import>

    <!--配置事務-->
    <bean name="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"></property>
    </bean>
    <!--配置事務通知-->
    <tx:advice id="txAdvice" transaction-manager="transactionManager">
        <tx:attributes>
            <tx:method name="add*" read-only="false" propagation="REQUIRED" isolation="DEFAULT"/>
            <tx:method name="persist*" read-only="false" propagation="REQUIRED" isolation="DEFAULT"/>
            <tx:method name="delete*" read-only="false" propagation="REQUIRED" isolation="DEFAULT"/>
            <tx:method name="remove*" read-only="false" propagation="REQUIRED" isolation="DEFAULT"/>
            <tx:method name="update*" read-only="false" propagation="REQUIRED" isolation="DEFAULT"/>
            <tx:method name="modify*" read-only="false" propagation="REQUIRED" isolation="DEFAULT"/>
            <tx:method name="get*" read-only="true" propagation="REQUIRED" isolation="DEFAULT"/>
            <tx:method name="find*" read-only="true" propagation="REQUIRED" isolation="DEFAULT"/>
        </tx:attributes>
    </tx:advice>
    <!--將事務織入到目標對象-->
    <aop:config>
        <aop:pointcut id="txPc" expression="execution(* cn.hd.service.impl.*ServiceImpl.*(..))"></aop:pointcut>
        <aop:advisor pointcut-ref="txPc" advice-ref="txAdvice"></aop:advisor>
    </aop:config>
</beans>

Pojo層

Pom.xml

<?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">
    <parent>
        <artifactId>online_retailers</artifactId>
        <groupId>com.hd</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>
    <packaging>jar</packaging>
    <artifactId>online_pojo</artifactId>


</project>

Dao層

Pom.xml

<?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">

    <parent>

        <artifactId>online_retailers</artifactId>

        <groupId>com.hd</groupId>

        <version>1.0-SNAPSHOT</version>

    </parent>

    <modelVersion>4.0.0</modelVersion>

    <packaging>jar</packaging>

    <artifactId>online_dao</artifactId>

    <!--依賴-->

    <dependencies>

        <dependency>

            <groupId>com.hd</groupId>

            <artifactId>online_pojo</artifactId>

            <version>1.0-SNAPSHOT</version>

        </dependency>

    </dependencies>

</project>

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"

       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

       ">

    <!--讀取db.properties-->

    <context:property-placeholder location="classpath:db.properties"></context:property-placeholder>



    <bean name="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>



    <bean name="sqlsessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">

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

        <!--讀取sqlMapperConfig.xml-->

        <property name="configLocation" value="classpath:sqlMapConfig.xml"></property>

    </bean>



    <bean name="map" class="java.util.HashMap"></bean>



    <!--自動掃描包下面的所有Mapper，當出現多個Mapper時，不用多次書寫bean-->

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

        <property name="basePackage" value="cn.hd.mapper"></property>

    </bean>



    <!--開啓註解-->

    <context:component-scan base-package="cn.hd"></context:component-scan>


</beans>

db.properties

jdbc.driver=com.mysql.jdbc.Driver

jdbc.url = jdbc:mysql://localhost:3306/easybuy?useUnicode=true&characterEncoding=utf-8

jdbc.username=root

jdbc.password=123

SqlMapperConfig.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>

    <!--起別名,掃描包-->

    <typeAliases>

        <package name="cn.hd.entity"></package>

        <package name="cn.hd.query_vo"></package>

    </typeAliases>



    <mappers>

        <mapper resource="mapper/NewsMapper.xml"></mapper>

    </mappers>

</configuration>

NewMapper.xml

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

<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">

<mapper namespace="cn.hd.mapper.NewsMapper">

  <resultMap id="BaseResultMap" type="cn.hd.entity.News">

    <id column="id" jdbcType="INTEGER" property="id" />

    <result column="title" jdbcType="VARCHAR" property="title" />

    <result column="content" jdbcType="VARCHAR" property="content" />

    <result column="createTime" jdbcType="VARCHAR" property="createtime" />

  </resultMap>

  <sql id="Base_Column_List">

    id, title, content, createTime

  </sql>

  <select id="selectByPrimaryKey" parameterType="java.lang.Integer" resultMap="BaseResultMap">

    select

    <include refid="Base_Column_List" />

    from easybuy_news

    where id = #{id,jdbcType=INTEGER}

  </select>

  <delete id="deleteByPrimaryKey" parameterType="java.lang.Integer">

    delete from easybuy_news

    where id = #{id,jdbcType=INTEGER}

  </delete>

  <insert id="insert" parameterType="cn.hd.entity.News">

    insert into easybuy_news (id, title, content,

      createTime)

    values (#{id,jdbcType=INTEGER}, #{title,jdbcType=VARCHAR}, #{content,jdbcType=VARCHAR},

      #{createtime,jdbcType=VARCHAR})

  </insert>

  <insert id="insertSelective" parameterType="cn.hd.entity.News">

    insert into easybuy_news

    <trim prefix="(" suffix=")" suffixOverrides=",">

      <if test="id != null">

        id,

      </if>

      <if test="title != null">

        title,

      </if>

      <if test="content != null">

        content,

      </if>

      <if test="createtime != null">

        createTime,

      </if>

    </trim>

    <trim prefix="values (" suffix=")" suffixOverrides=",">

      <if test="id != null">

        #{id,jdbcType=INTEGER},

      </if>

      <if test="title != null">

        #{title,jdbcType=VARCHAR},

      </if>

      <if test="content != null">

        #{content,jdbcType=VARCHAR},

      </if>

      <if test="createtime != null">

        #{createtime,jdbcType=VARCHAR},

      </if>

    </trim>

  </insert>

  <update id="updateByPrimaryKeySelective" parameterType="cn.hd.entity.News">

    update easybuy_news

    <set>

      <if test="title != null">

        title = #{title,jdbcType=VARCHAR},

      </if>

      <if test="content != null">

        content = #{content,jdbcType=VARCHAR},

      </if>

      <if test="createtime != null">

        createTime = #{createtime,jdbcType=VARCHAR},

      </if>

    </set>

    where id = #{id,jdbcType=INTEGER}

  </update>

  <update id="updateByPrimaryKey" parameterType="cn.hd.entity.News">

    update easybuy_news

    set title = #{title,jdbcType=VARCHAR},

      content = #{content,jdbcType=VARCHAR},

      createTime = #{createtime,jdbcType=VARCHAR}

    where id = #{id,jdbcType=INTEGER}

  </update>

</mapper>

Maven父子工程配置文件詳解

dom4j解析.xml文件

windows家庭版修改密碼有效時長

Java環境以及Tomcat環境配置

採用 FIFO、LRU和 OPT頁面置換算法時，計算在訪問過程中所發生的缺頁次數和缺頁率

Java類、方法、對象的應用以及GC

https://yachay.unat.edu.pe/blog/index.php?comment_area=format_blog&comment_component=blog&comment_co

linux以太網驅動總結