ssh_maven的搭建之dao层的开发

　　之前都是使用我们传统的方式进行引入jar包，现在我们使用maven进行管理依赖，这样，我们的jar就不需要我们进行管理，而且，我们的maven还可以进行项目构建，一个项目从编写源代码到编译，测试，运行，打包，部署的过程，只需要对应的一个命令即可以了，方便了很多

　　这里，我们直接进入主题，像eclipse中怎么配置maven等这里我们暂时不说，直接从创建项目开始，而且我们采用的是纯配置文件的方式

　　我们可以看一下我们的目录结构

　　这咯我们的ssh_parent是父工程，而剩下的都是它的子模块

　　

　　这里我们的ssh_parent是父工程，是pom类型，主要作用，就是聚合我们的子模块

　　这里我们的子模块ssh_dao,ssh_service,是jar类型，

　　这里我们的子模块ssh_controller,是war类型

　　1.我们先把我们的父工程搭建好

　　这是我们父工程的pom.xml文件

<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.itheima</groupId>

  <artifactId>ssh_parent</artifactId>

  <version>0.0.1-SNAPSHOT</version>

  <packaging>pom</packaging>

  <modules>

      <module>ssh_dao</module>

      <module>ssh_service</module>

      <module>ssh_controller</module>

  </modules>

  <!-- 为了确定每个框架的版本号 -->

  <!-- 锁定版本 -->

   <properties>

        <spring.version>4.2.4.RELEASE</spring.version>

        <struts2.version>2.3.24</struts2.version>

        <hibernate.version>5.0.7.Final</hibernate.version>

        <slf4j.version>1.6.6</slf4j.version>

        <log4j.version>1.2.12</log4j.version>

        <shiro.version>1.2.3</shiro.version>

        <cxf.version>3.0.1</cxf.version>

        <c3p0.version>0.9.1.2</c3p0.version>

        <mysql.version>5.1.6</mysql.version>

    </properties>

      <!-- 锁定版本，struts2-2.3.24、spring4.2.4、hibernate5.0.7 -->

    <dependencyManagement>

        <dependencies>

            <dependency>

                <groupId>org.springframework</groupId>

                <artifactId>spring-context</artifactId>

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

            </dependency>

            <dependency>

                <groupId>org.springframework</groupId>

                <artifactId>spring-aspects</artifactId>

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

            </dependency>

            <dependency>

                <groupId>org.springframework</groupId>

                <artifactId>spring-orm</artifactId>

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

            </dependency>

            <dependency>

                <groupId>org.springframework</groupId>

                <artifactId>spring-test</artifactId>

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

            </dependency>

            <dependency>

                <groupId>org.springframework</groupId>

                <artifactId>spring-web</artifactId>

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

            </dependency>

            <dependency>

                <groupId>org.hibernate</groupId>

                <artifactId>hibernate-core</artifactId>

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

            </dependency>

            <dependency>

                <groupId>org.apache.struts</groupId>

                <artifactId>struts2-core</artifactId>

                <version>${struts2.version}</version>

            </dependency>

            <dependency>

                <groupId>org.apache.struts</groupId>

                <artifactId>struts2-spring-plugin</artifactId>

                <version>${struts2.version}</version>

            </dependency>

        </dependencies>

    </dependencyManagement>

  <dependencies>

      <dependency>

            <groupId>org.apache.httpcomponents</groupId>

            <artifactId>httpclient</artifactId>

            <version>4.4</version>

        </dependency>

        <dependency>

            <groupId>com.alibaba</groupId>

            <artifactId>fastjson</artifactId>

            <version>1.1.37</version>

        </dependency>

        <dependency>

            <groupId>commons-beanutils</groupId>

            <artifactId>commons-beanutils</artifactId>

            <version>1.9.1</version>

        </dependency>

        <!-- <dependency>

            <groupId>org.quartz-scheduler</groupId>

            <artifactId>quartz</artifactId>

            <version>2.2.1</version>

        </dependency> -->

        <dependency>

          <groupId>commons-fileupload</groupId>

          <artifactId>commons-fileupload</artifactId>

          <version>1.3.1</version>

        </dependency>

        <!-- jstl -->

         <dependency>

          <groupId>jstl</groupId>

          <artifactId>jstl</artifactId>

          <version>1.2</version>

        </dependency>

        <!-- shiro -->

         <!-- apache shiro dependencies -->

         <!-- <dependency>

            <groupId>org.apache.shiro</groupId>

            <artifactId>shiro-all</artifactId>

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

         </dependency> -->

       <!-- spring -->

        <dependency>

            <groupId>org.aspectj</groupId>

            <artifactId>aspectjweaver</artifactId>

            <version>1.6.8</version>

        </dependency>

         <dependency>

            <groupId>org.springframework</groupId>

            <artifactId>spring-aop</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-web</artifactId>

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

        </dependency>

        <dependency>

          <groupId>org.springframework</groupId>

          <artifactId>spring-orm</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-core</artifactId>

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

        </dependency>

        <!-- struts2  begin -->

        <dependency>

            <groupId>org.apache.struts</groupId>

            <artifactId>struts2-core</artifactId>

            <version>${struts2.version}</version>

            <exclusions>

                <exclusion>

                    <artifactId>javassist</artifactId>

                    <groupId>javassist</groupId>

                </exclusion>

            </exclusions>

        </dependency>

        <dependency>

            <groupId>org.apache.struts</groupId>

            <artifactId>struts2-spring-plugin</artifactId>

            <version>${struts2.version}</version>

        </dependency>

        <dependency>

            <groupId>org.apache.struts</groupId>

            <artifactId>struts2-json-plugin</artifactId>

            <version>${struts2.version}</version>

        </dependency>

        <dependency>

              <groupId>org.apache.struts</groupId>

              <artifactId>struts2-convention-plugin</artifactId>

              <version>${struts2.version}</version>

          </dependency>

        <!-- struts2  end -->

        <!-- hibernate begin -->

        <dependency>

            <groupId>org.hibernate</groupId>

            <artifactId>hibernate-core</artifactId>

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

        </dependency>

        <dependency>

            <groupId>org.hibernate</groupId>

            <artifactId>hibernate-entitymanager</artifactId>

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

        </dependency>

        <dependency>

            <groupId>org.hibernate</groupId>

            <artifactId>hibernate-validator</artifactId>

            <version>5.2.1.Final</version>

        </dependency>

        <!-- hibernate end -->

        <dependency>

              <groupId>c3p0</groupId>

              <artifactId>c3p0</artifactId>

              <version>${c3p0.version}</version>

          </dependency>

        <!-- <dependency>

            <groupId>org.apache.cxf</groupId>

            <artifactId>cxf-rt-frontend-jaxws</artifactId>

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

        </dependency>

        <dependency>

            <groupId>org.apache.cxf</groupId>

            <artifactId>cxf-rt-transports-http</artifactId>

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

        </dependency> -->

        <!-- log start -->

        <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 -->

        <!-- Javamail -->

    <!--     <dependency>

          <groupId>javax.mail</groupId>

          <artifactId>mail</artifactId>

          <version>1.4.4</version>

        </dependency> -->

        <dependency>

            <groupId>commons-lang</groupId>

            <artifactId>commons-lang</artifactId>

            <version>2.6</version>

        </dependency>

        <!-- <dependency>

            <groupId>org.codehaus.xfire</groupId>

            <artifactId>xfire-core</artifactId>

            <version>1.2.6</version>

        </dependency>  -->

        <dependency>

           <groupId>dom4j</groupId>

           <artifactId>dom4j</artifactId>

           <version>1.6</version>

        </dependency>

        <!-- <dependency>

            <groupId>org.apache.poi</groupId>

            <artifactId>poi</artifactId>

            <version>3.11</version>

        </dependency>

        <dependency>

            <groupId>org.apache.poi</groupId>

            <artifactId>poi-ooxml</artifactId>

            <version>3.11</version>

        </dependency>

        <dependency>

            <groupId>org.apache.poi</groupId>

            <artifactId>poi-ooxml-schemas</artifactId>

            <version>3.11</version>

        </dependency> -->

        <dependency>

            <groupId>mysql</groupId>

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

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

        </dependency>

       <!--  <dependency>

            <groupId>com.oracle</groupId>

            <artifactId>ojdbc14</artifactId>

            <version>10.2.0.4.0</version>

        </dependency> -->

       <!--  <dependency>

            <groupId>javax.servlet</groupId>

            <artifactId>servlet-api</artifactId>

            <version>2.5</version>

            <scope>provided</scope>

        </dependency>

        <dependency>

            <groupId>javax.servlet.jsp</groupId>

            <artifactId>jsp-api</artifactId>

            <version>2.0</version>

            <scope>provided</scope>

        </dependency> -->

        <dependency>

            <groupId>net.sf.ehcache</groupId>

            <artifactId>ehcache-core</artifactId>

            <version>2.6.6</version>

        </dependency>

        <!-- <dependency>

               <groupId>javax.el</groupId>

              <artifactId>javax.el-api</artifactId>

            <version>2.2.4</version>

        </dependency> -->

        <!-- <dependency>

               <groupId>org.glassfish.web</groupId>

               <artifactId>javax.el</artifactId>

               <version>2.2.4</version>

        </dependency> -->

  </dependencies>

   <build>

    <pluginManagement>

        <plugins>

            <plugin>

                <groupId>org.apache.maven.plugins</groupId>

                <artifactId>maven-compiler-plugin</artifactId>

                <version>3.2</version>

                <configuration>

                    <source>1.7</source>

                    <target>1.7</target>

                    <encoding>UTF-8</encoding>

                    <showWarnings>true</showWarnings>

                </configuration>

            </plugin>

        </plugins>

    </pluginManagement>

  </build>

</project>

　　2.我们开发我们的dao层的开发，这是我们的目录结构

　　

　　dao层我们需要创建我们的实体类，dao层接口，dao层实现类，需要我们的applicationContext-dao.xml文件

　　Customer实体类

package com.itheima.entity;

public class Customer {

    private Long custId;

    private String custName;

    private String custSource;

    private String custIndustry;

    private String custLevel;

    private String custAddress;

    private String custPhone;

    public Long getCustId() {

        return custId;

    }

    public void setCustId(Long custId) {

        this.custId = custId;

    }

    public String getCustName() {

        return custName;

    }

    public void setCustName(String custName) {

        this.custName = custName;

    }

    public String getCustSource() {

        return custSource;

    }

    public void setCustSource(String custSource) {

        this.custSource = custSource;

    }

    public String getCustIndustry() {

        return custIndustry;

    }

    public void setCustIndustry(String custIndustry) {

        this.custIndustry = custIndustry;

    }

    public String getCustLevel() {

        return custLevel;

    }

    public void setCustLevel(String custLevel) {

        this.custLevel = custLevel;

    }

    public String getCustAddress() {

        return custAddress;

    }

    public void setCustAddress(String custAddress) {

        this.custAddress = custAddress;

    }

    public String getCustPhone() {

        return custPhone;

    }

    public void setCustPhone(String custPhone) {

        this.custPhone = custPhone;

    }

    @Override

    public String toString() {

        return "Customer [custId=" + custId + ", custName=" + custName + ", custSource=" + custSource

                + ", custIndustry=" + custIndustry + ", custLevel=" + custLevel + ", custAddress=" + custAddress

                + ", custPhone=" + custPhone + "]";

    }

}

　　CustomerDao代码

package com.itheima.dao;

import java.util.List;

import org.springframework.orm.hibernate5.support.HibernateDaoSupport;

import com.itheima.entity.Customer;

public interface CustomerDao {

    /**

     * 添加一个客户

     */

    public void saveCustomer(Customer customer);

    /**

     * 插叙所有的客户信息

     */

    public List<Customer> findAllCustomer();

}

　　CustomerDaoImpl实现类

　　注：这里我们直接继承我们的HibernateDaoSupport的话，要注入sessionFactory,完了会返回给你一个hibernateTemplate

package com.itheima.dao.impl;

import java.util.List;

import org.springframework.orm.hibernate5.support.HibernateDaoSupport;

import com.itheima.dao.CustomerDao;

import com.itheima.entity.Customer;

public class CustomerDaoImpl extends HibernateDaoSupport implements CustomerDao{

    public void saveCustomer(Customer customer) {

        this.getHibernateTemplate().save(customer);

    }

    public List<Customer> findAllCustomer() {

        return (List<Customer>) this.getHibernateTemplate().find("from Customer");

    }

}

　　我们的applicationContext-dao.xml文件

<?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:aop="http://www.springframework.org/schema/aop"

    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.xsd

        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.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">

    <!-- 数据源的配置 -->

    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">

        <property name="driverClass" value="com.mysql.jdbc.Driver"></property>

        <property name="jdbcUrl" value="jdbc:mysql:///ssh_280"></property>

        <property name="user" value="root"></property>

        <property name="password" value="root"></property>

    </bean>

    <!-- sessionFactory的配置 -->

    <bean id="sessionFactory" class="org.springframework.orm.hibernate5.LocalSessionFactoryBean">

        <!-- 配置数据源 -->

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

        <!-- 配置hibernate配置文件 -->

        <property name="configLocations" value="classpath:hibernate.cfg.xml"></property>

    </bean>

    <!-- 配置事务管理器 -->

    <bean id="transactionManager" class="org.springframework.orm.hibernate5.HibernateTransactionManager">

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

    </bean>

    <!-- 配置事务的通知 -->

    <tx:advice id="txAdvice">

        <tx:attributes>

            <tx:method name="save*" propagation="REQUIRED" read-only="false" />

            <tx:method name="update*" propagation="REQUIRED" read-only="false" />

            <tx:method name="delete*" propagation="REQUIRED" read-only="false" />

            <tx:method name="find*" propagation="SUPPORTS" read-only="true" />

        </tx:attributes>

    </tx:advice>

    <!-- 配置切面 -->

    <aop:config>

        <aop:pointcut expression="execution(* com.itheima.service.*.*(..))" id="pt"/>

        <aop:advisor advice-ref="txAdvice" pointcut-ref="pt"/>

    </aop:config>

    <bean id="customerDao" class="com.itheima.dao.impl.CustomerDaoImpl">

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

    </bean>

</beans>

　　hibernate.cfg.xml文件

<?xml version='1.0' encoding='utf-8'?>

<!DOCTYPE hibernate-configuration PUBLIC

    "-//Hibernate/Hibernate Configuration DTD 3.0//EN"

    "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">

<hibernate-configuration>

    <!-- 会话工厂 -->

    <session-factory>

        <!-- 数据库方言，根据数据库选择 -->

        <property name="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</property>

        <!--为了方便调试是否在运行hibernate时在日志中输出sql语句 -->

        <property name="hibernate.show_sql">true</property>

        <!-- 是否对日志中输出的sql语句进行格式化 -->

        <property name="hibernate.format_sql">true</property>

        <property name="hibernate.hbm2ddl.auto">none</property>

        <!-- 加载映射文件 -->

        <mapping resource="com/itheima/entity/Customer.hbm.xml"/>

    </session-factory>

</hibernate-configuration>

　　Customer.hbm.xml对象关系映射文件（我们这个文件要放到跟我们的Customer同级目录，我们可以在我们的resource中创建一个同样的实体类的路径）

<?xml version="1.0"?>

<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"

"http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">

<hibernate-mapping>

    <class name="com.itheima.entity.Customer" table="cst_customer">

        <id name="custId" column="cust_id">

            <generator class="native"></generator>

        </id>

        <property name="custName" column="cust_name"></property>

        <property name="custSource" column="cust_source"></property>

        <property name="custIndustry" column="cust_industry"></property>

        <property name="custLevel" column="cust_level"></property>

        <property name="custAddress" column="cust_address"></property>

        <property name="custPhone" column="cust_phone"></property>

    </class>

</hibernate-mapping>

　　在测试之前，我们加入我们测试的jar(这里的jar包只需要在仓库中搜索就行)

　　pom.xml　

<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>

  <parent>

    <groupId>com.itheima</groupId>

    <artifactId>ssh_parent</artifactId>

    <version>0.0.1-SNAPSHOT</version>

  </parent>

  <artifactId>ssh_dao</artifactId>

  <dependencies>

      <dependency>

          <groupId>junit</groupId>

          <artifactId>junit</artifactId>

          <version>4.10</version>

      </dependency>

  </dependencies>

</project>

　这样，我们可以先来测试一下我们的dao层

package com.itheima.test;

import java.util.List;

import org.junit.Test;

import org.springframework.context.ApplicationContext;

import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.itheima.dao.CustomerDao;

import com.itheima.entity.Customer;

public class CustomerDaoTest {

    @Test

    public void findAllCustomerTest(){

        ApplicationContext ac = new ClassPathXmlApplicationContext("classpath:applicationContext-dao.xml");

        CustomerDao customerDao = (CustomerDao) ac.getBean("customerDao");

        List<Customer> list = customerDao.findAllCustomer();

        for (Customer customer : list) {

            System.out.println(customer.getCustName());

        }

    }

}

　　　测试一下我们的dao层

　　　

　　这样的话，我们的dao层的开发就完成了！