MAVEN_day03 整合SSH框架

一、整合SSH工程环境准备

　　1.创建MAVEN工程>>添加>>"web.xml"文件解决工程红色叹号。

　　　　new Maven Project>>在src>main>webapp>创建WEB-INF文件夹，并导入web.xml文件

　　2.解决编译版本问题，在pom.xml中，添加版本编译代码，以下是需要整合SSH代码。（代码已经解决jar冲突问题）

<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>cn.itcast</groupId>
  <artifactId>ssh</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <packaging>war</packaging>
   <!-- 属性 -->
    <properties>
        <spring.version>4.2.4.RELEASE</spring.version>
        <hibernate.version>5.0.7.Final</hibernate.version>
        <struts.version>2.3.24</struts.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>${struts.version}</version>
            </dependency>
            <dependency>
                <groupId>org.apache.struts</groupId>
                <artifactId>struts2-spring-plugin</artifactId>
                <version>${struts.version}</version>
            </dependency>
        </dependencies>
    </dependencyManagement>
    <!-- 依赖管理 -->
    <dependencies>
        <!-- spring -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aspects</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-orm</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
        </dependency>
        <!-- hibernate -->
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-core</artifactId>
        </dependency>

        <!-- 数据库驱动 -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.6</version>
        </dependency>
        <!-- c3p0 -->

        <dependency>
            <groupId>c3p0</groupId>
            <artifactId>c3p0</artifactId>
            <version>0.9.1.2</version>
        </dependency>

        <!-- 导入 struts2 -->
        <dependency>
            <groupId>org.apache.struts</groupId>
            <artifactId>struts2-core</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.struts</groupId>
            <artifactId>struts2-spring-plugin</artifactId>
        </dependency>

        <!-- servlet jsp -->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>servlet-api</artifactId>
            <version>2.5</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jsp-api</artifactId>
            <version>2.0</version>
            <scope>provided</scope>
        </dependency>
        <!-- 日志 -->
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-log4j12</artifactId>
            <version>1.7.2</version>
        </dependency>
        <!-- junit -->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.9</version>
            <scope>test</scope>
        </dependency>
        <!-- jstl -->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <!-- 设置编译版本为1.8 -->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                    <encoding>UTF-8</encoding>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

　　二、开始编码（整合SSH所需的配置文件，切记在web.xml文件中配置struts核心过滤器、spring拦截器）

　　1.strus.xml、applicationContext.xml、hibernate.cfg.xml   需要放在src/main/resources文件夹下，相当于普通工程的src文件夹下。以下是个文件模板

　　strut.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
    "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
    "http://struts.apache.org/dtds/struts-2.3.dtd">
<struts>
    <!-- 配置常量 -->
    <!-- 字符集 -->
    <constant name="struts.i18n.encoding" value="UTF-8"></constant>
    <!-- 开发模式 -->
    <constant name="struts.devMode" value="true"></constant>
    <!-- 主题 -->
    <constant name="struts.ui.theme" value="simple"></constant>
    <!-- 扩展名 -->
    <constant name="struts.action.extension" value="action"></constant>
    <!-- 通用package -->
    <package name="customer" namespace="/" extends="struts-default">

        <action name="" class="全路径" method="方法名">
            <result name="success"></result>
        </action>

    </package>
</struts>

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

    <!-- 数据库连接池 -->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="com.mysql.jdbc.Driver" />
        <property name="jdbcUrl" value="jdbc:mysql://localhost:3306/maven" />
        <property name="user" value="root" />
        <property name="password" value="root" />
    </bean>

    <!-- 配置sessionFactory -->
    <bean id="sessionFactory" class="org.springframework.orm.hibernate5.LocalSessionFactoryBean">
        <!-- 依赖dataSource -->
        <property name="dataSource" ref="dataSource"/>
        <!-- 创建工厂需要加载hibernate映射文件 -->
        <property name="configLocations" value="classpath:hibernate.cfg.xml"></property>
    </bean>

    <bean id="customerDao" class="全路径">
     <property name="sessionFactory" ref="sessionFactory"></property>
    </bean>

</beans>

　　hibernate.cfg.xml 　　

<?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="cn/itcast/crm/bean/Customer.hbm.xml"/>
    </session-factory>
</hibernate-configuration>

　　

　　2.实体的配置问价放在与对应的java代码同一个文件夹上。如下图所示

　　

　　3.测试dao代码（我习惯从底层编码）  测试代码是要存放在src/test/java文件夹下的位置

　　

　　4.测试结果

　　

　　5.创建service层

　　　　5.1注入dao

<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: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/tx
    http://www.springframework.org/schema/tx/spring-tx.xsd">
    <!-- 数据库连接池 -->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="com.mysql.jdbc.Driver" />
        <property name="jdbcUrl" value="jdbc:mysql://localhost:3306/maven" />
        <property name="user" value="root" />
        <property name="password" value="root" />
    </bean>

    <!-- 配置sessionFactory -->
    <bean id="sessionFactory" class="org.springframework.orm.hibernate5.LocalSessionFactoryBean">
        <!-- 依赖dataSource -->
        <property name="dataSource" ref="dataSource"/>
        <!-- 创建工厂需要加载hibernate映射文件 -->
        <property name="configLocations" value="classpath:hibernate.cfg.xml"></property>
    </bean>

    <bean id="customerDao" class="cn.itcast.crm.dao.impl.CustomerDaoImpl">
     <property name="sessionFactory" ref="sessionFactory"></property>
    </bean>

    <bean id="customerService" class="cn.itcast.crm.service.impl.CustomerServiceImpl">
     <property name="customerDao" ref="customerDao"></property>
    </bean>

    <bean id="customerAction" class="cn.itcast.crm.action.CustomerAction" scope="prototype">
     <property name="customerService" ref="customerService"></property>
    </bean>
</beans>

　　6.创建Action

　　　　6.1通过Action 在jsp从值栈中获取