CRM第一篇

2.1搭建前提
    我们在搭建CRM开发环境之前，需要明确2件事情：
        a、我们搭建环境采用基于注解的配置。
        b、搭建环境需要测试，我们以客户的保存和列表查询作为测试功能。
    2.2搭建步骤
    2.2.1导入Spring和Hibernate的jar包
    Hibernate基本jar包（包括了数据库驱动）

    C3P0的jar包

    Spring的IoC，AOP和事务控制必备jar包

    2.2.2创建实体类并使用注解映射
    /**
     * 客户的实体类
     *
     * 明确使用的注解都是JPA规范的
     * 所以导包都要导入javax.persistence包下的
     *
     */
    @Entity//表示当前类是一个实体类
    @Table(name="cst_customer")//建立当前实体类和表之间的对应关系
    public class Customer implements Serializable {

        @Id//表明当前私有属性是主键
        @GeneratedValue(strategy=GenerationType.IDENTITY)//指定主键的生成策略
        @Column(name="cust_id")//指定和数据库表中的cust_id列对应
        private Long custId;
        @Column(name="cust_name")//指定和数据库表中的cust_name列对应
        private String custName;

        @Column(name="cust_industry")//指定和数据库表中的cust_industry列对应
        private String custIndustry;
        @Column(name="cust_source")
        private String custSource;
        @Column(name="cust_level")
        private String custLevel;
        @Column(name="cust_address")//指定和数据库表中的cust_address列对应
        private String custAddress;
        @Column(name="cust_phone")//指定和数据库表中的cust_phone列对应
        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 getCustIndustry() {
            return custIndustry;
        }
        public void setCustIndustry(String custIndustry) {
            this.custIndustry = custIndustry;
        }
        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;
        }
        public String getCustSource() {
            return custSource;
        }
        public void setCustSource(String custSource) {
            this.custSource = custSource;
        }
        public String getCustLevel() {
            return custLevel;
        }
        public void setCustLevel(String custLevel) {
            this.custLevel = custLevel;
        }
        @Override
        public String toString() {
            return "Customer [custId=" + custId + ", custName=" + custName
                    + ", custIndustry=" + custIndustry + ", custAddress="
                    + custAddress + ", custPhone=" + custPhone + "]";
        }
    }

    2.2.3编写业务层接口及实现类
    /**
     * 客户的业务层接口
     * 一个功能模块一个service
     */
    public interface ICustomerService {

        /**
         * 保存客户
         * @param customer
         */
        void saveCustomer(Customer customer);

        /**
         * 查询所有客户信息
         * @return
         */
        List<Customer> findAllCustomer();
    }

    /**
     * 客户的业务层实现类
     */
    @Service("customerService")
    @Transactional(propagation=Propagation.REQUIRED,readOnly=false)
    public class CustomerServiceImpl implements ICustomerService {

        @Autowired
        private ICustomerDao customerDao;

        @Override
        public void saveCustomer(Customer customer) {
            customerDao.save(customer);
        }

        @Override
        @Transactional(propagation=Propagation.SUPPORTS,readOnly=true)
        public List<Customer> findAllCustomer() {
            return customerDao.findAllCustomer();
        }
    }

    2.2.4编写持久层接口及实现类
    /**
     * 客户的持久层接口
     */
    public interface ICustomerDao extends IBaseDao<Customer>{

        /**
         * 查询所有客户
         * @return
         */
        List<Customer> findAllCustomer();

        /**
         * 保存客户
         * @param customer
         * @return
         */
        void saveCustomer(Customer customer);
    }

    /**
     * 客户的持久层实现类
     */
    @Repository("customerDao")
    public class CustomerDaoImpl implements ICustomerDao {

        @Autowired
        private HibernateTemplate hibernateTemplate;

        @Override
        public void saveCustomer(Customer customer) {
            hibernateTemplate.save(cusotmer);
        }

        @Override
        public List<Customer> findAllCustomer() {
            return (List<Customer>) hibernateTemplate.find("from Customer ");
        }
    }
    2.2.5编写spring的配置

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

        <!-- 配置spring运行要扫描的包 -->
        <context:component-scan base-package="com.baidu"></context:component-scan>

        <!-- 开启spring对注解事务的支持 -->
        <tx:annotation-driven transaction-manager="transactionManager"/>

        <!-- 配置HibernateTemplate -->
        <bean id="hibernateTemplate"
                    class="org.springframework.orm.hibernate5.HibernateTemplate">
            <!-- 注入SessionFactory -->
            <property name="sessionFactory" ref="sessionFactory"></property>
        </bean>

        <!-- 配置事务管理器 -->
        <bean id="transactionManager"
            class="org.springframework.orm.hibernate5.HibernateTransactionManager">
            <!-- 注入SessionFactory -->
            <property name="sessionFactory" ref="sessionFactory"></property>
        </bean>

        <!-- 配置SessionFactory -->
        <bean id="sessionFactory"
                class="org.springframework.orm.hibernate5.LocalSessionFactoryBean">
            <!-- 1、连接数据库的 -->
            <property name="dataSource" ref="dataSource"></property>
            <!-- 2、hibernate基本配置的 -->
            <property name="hibernateProperties">
                <props>
                    <!-- 数据库的方言-->
                    <prop key="hibernate.dialect">
                        org.hibernate.dialect.MySQLDialect
                    </prop>
                    <!-- 是否显示sql语句-->
                    <prop key="hibernate.show_sql">true</prop>
                    <!-- 是否格式化sql语句-->
                    <prop key="hibernate.format_sql">false</prop>
                    <!-- 采用何种方式生成数据库表结构 -->
                    <prop key="hibernate.hbm2ddl.auto">update</prop>
                    <!-- 是spring把sesion绑定到当前线程上的配置 -->
                    <prop key="hibernate.current_session_context_class">
                        org.springframework.orm.hibernate5.SpringSessionContext
                    </prop>
                </props>
            </property>
            <!-- 3、指定扫描映射注解的包-->
            <property name="packagesToScan">
                <array>
                    <value>com.baidu.domain</value>
                </array>
            </property>
        </bean>

        <!-- 配置数据源 -->
        <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
            <property name="driverClass" value="com.mysql.jdbc.Driver"></property>
            <property name="jdbcUrl" value="jdbc:mysql:///crm"></property>
            <property name="user" value="root"></property>
            <property name="password" value="1234"></property>
        </bean>
    </beans>
    2.2.6导入junit的jar包

    2.2.7配置spring整合junit的测试类并测试
    @RunWith(SpringJUnit4ClassRunner.class)
    @ContextConfiguration(locations={"classpath:config/spring/applicationContext.xml"})
    public class CustomerServiceTest {

        @Autowired
        private ICustomerService customerService;

        @Test
        public void testFindAll(){
            customerService.findAllCustomer();
        }

        @Test
        public void testSave(){
            Customer c = new Customer();
            c.setCustName("传智学院 ");
            customerService.saveCustomer(c);
        }
    }

    2.2.8导入jsp页面

    2.2.9导入struts2的jar包

    2.2.10编写Action并配置
    /**
     * 客户的动作类
     *
     */
    @Controller("customerAction")
    @Scope("prototype")
    @ParentPackage("struts-default")
    @Namespace("/customer")
    public class CustomerAction extends ActionSupport implements ModelDriven<Customer> {
        private Customer customer = new Customer();

        @Autowired
        private ICustomerService customerService ;

        @Override
        public Customer getModel() {
            return customer;
        }

        /**
         * 添加客户
         * @return
         */
        @Action(value="addCustomer",results={
            @Result(name="addCustomer",type="redirect",location="/jsp/success.jsp")
        })
        public String addCustomer(){
            customerService.saveCustomer(customer);
            return "addCustomer";
        }

        /**
         * 获取添加客户页面
         * @return
         */
        @Action(value="addUICustomer",results={            @Result(name="addUICustomer",type="dispatcher",location="/jsp/customer/add.jsp")
        })
        public String addUICustomer(){
            return "addUICustomer";
        }

        private List<Customer> customers;
        @Action(value="findAllCustomer",results={        @Result(name="findAllCustomer",type="dispatcher",location="/jsp/customer/list.jsp")
        })
        public String findAllCustomer(){
            page = customerService.findAllCustomer(dCriteria,num);
            return "findAllCustomer";
        }

        public List<Customer> getCustomers() {
            return customers;
        }

        public void setCustomers(List<Customer> customers) {
            this.customers = customers;
        }
    }
    2.2.11改造jsp页面
    略。设计的jsp有：menu.jsp  add.jsp   list.jsp
    2.2.12编写web.xml
    <?xml version="1.0" encoding="UTF-8"?>
    <web-app version="3.0"
        xmlns="http://java.sun.com/xml/ns/javaee"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
        http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">
      <display-name></display-name>
      <!-- 配置监听器 -->
        <listener>
            <listener-class>
                org.springframework.web.context.ContextLoaderListener
            </listener-class>
        </listener>

        <!-- 手动指定spring配置文件的位置 -->
        <context-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>
                classpath:config/spring/applicationContext.xml
            </param-value>
        </context-param>

        <!-- 配置解决Nosession问题的过滤器 -->
        <filter>
            <filter-name>OpenSessionInViewFilter</filter-name>
            <filter-class>
                org.springframework.orm.hibernate5.support.OpenSessionInViewFilter
            </filter-class>
        </filter>
        <filter-mapping>
            <filter-name>OpenSessionInViewFilter</filter-name>
            <url-pattern>/*</url-pattern>
        </filter-mapping>

        <!-- 配置struts2的核心控制，同时需要手动指定struts2的配置文件位置 -->
        <filter>
            <filter-name>struts2</filter-name>
            <filter-class>
               org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter
            </filter-class>
            <!-- 手动指定struts2配置文件的位置 -->
            <init-param>
                <param-name>config</param-name>
                <param-value>
                    struts-default.xml,struts-plugin.xml,config/struts/struts.xml
                </param-value>
            </init-param>
        </filter>

        <filter-mapping>
            <filter-name>struts2</filter-name>
            <url-pattern>/*</url-pattern>
        </filter-mapping>

        <welcome-file-list>
            <welcome-file>index.html</welcome-file>
            <welcome-file>index.htm</welcome-file>
            <welcome-file>index.jsp</welcome-file>
            <welcome-file>default.html</welcome-file>
            <welcome-file>default.htm</welcome-file>
            <welcome-file>default.jsp</welcome-file>
        </welcome-file-list>
    </web-app>

    2.2.13测试环境搭建是否成功
    我们可以通过浏览器地址栏输入网址来查看是否搭建成功：
        http://localhost:8080/写自己的项目名称