CRM项目实战：Spring+Hibernate集成教程

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"该资源是一个关于CRM项目的介绍，包含了开发模块的详解，源码示例，特别适合初学者。主要涉及的技术栈有Spring、Hibernate以及MySQL数据库，还涵盖了配置文件的设置，DAO接口与业务逻辑接口的设计差异，以及如何利用Hibernate进行对象查询。" 在CRM项目中，开发人员通常会使用一系列技术来构建高效、可扩展的客户关系管理系统。这个项目的核心技术包括Spring框架和Hibernate持久层框架，它们是Java Web开发中的关键组件。首先，Spring是一个全面的后端应用框架，它提供依赖注入（DI）和面向切面编程（AOP）等功能，有助于简化应用程序的开发和维护。在CRM项目中，Spring用于管理对象的生命周期和控制流程。将Spring的jar文件（如spring.jar）放入/WEB-INF/lib目录下是配置Spring的基础步骤。同时，还需要配置Spring的核心配置文件（如applicationContext-*.xml），这些文件定义了对象的bean及其相互关系。其次，Hibernate是一个对象关系映射（ORM）框架，它允许开发者用Java对象模型来操作数据库。在CRM项目中，Hibernate被用来处理数据持久化。为了使用Hibernate，需要将相关的jar文件（如hibernate3.jar以及lib目录下的所有依赖jar）放入/WEB-INF/lib目录，并配置hibernate.cfg.xml文件以定义数据库连接和其他设置。此外，项目中还涉及到日志配置文件log4j.properties，用于记录系统运行时的日志信息。在项目中，DAO（Data Access Object）接口与业务逻辑接口的设计是关键部分。DAO接口定义了对数据库操作的抽象，而业务逻辑接口则封装了更高级别的业务流程。通过CustomerDAO的hibernate实现类，我们可以看到如何使用Hibernate进行标准对象查询，例如，根据业务需求查询或操作Customer对象。Customer.java展示了如何定义一个带有Hibernate注解的实体类，这些注解用于指定数据库表名、字段和继承关系等。 Customer类的属性包括id、name、shortName、sn等，这些属性对应数据库中的列。Hibernate的@hibernate.class注解指定了映射的数据库表，@hibernate.discriminator用于处理单表继承。其他属性如evaluation、creditRating等则表示客户的特定信息。这个CRM项目资源为初学者提供了一个学习Spring、Hibernate和数据库交互的实际案例，通过理解和实践这些内容，可以帮助开发者更好地掌握企业级应用的开发技能。

ContactPerson.java

package com.axjy.crm.model;

public class ContactPerson extends BaseEntity{ //id属性被抽象到BaseEntity.java中

private Customer customer; //客户

private String name; //姓名

private String sex; //性别

private String grade; //重要等级

private String responsibility; //负责业务

private String term; //称谓

private String type; //类型

private String department; //部门

private String duty; //职务

private String officePhone; //办公电话

private String fax; //传真

private String cellPhone; //移动电话

private String email; //电子邮件

private String homePhone; //家庭电话

private String msn; //msn/qq

private String homeAddress; //家庭住址

private Date birthday; //生日

private String preference; //兴趣爱好

private String description; //备注

public Date getBirthday() {return birthday;}

public void setBirthday(Date birthday) {this.birthday = birthday;}

public String getCellPhone() {return cellPhone;}

public void setCellPhone(String cellPhone) {this.cellPhone = cellPhone;}

public Customer getCustomer() {return customer;}

public void setCustomer(Customer customer) {this.customer = customer;}

public String getDepartment() {return department;}

public void setDepartment(String department) {this.department = department;}

public String getDescription() {return description;}

public void setDescription(String description) {this.description = description;}

public String getDuty() {return duty;}

public void setDuty(String duty) {this.duty = duty;}

public String getEmail() {return email;}

public void setEmail(String email) {this.email = email;}

public String getFax() {return fax;}

public void setFax(String fax) {this.fax = fax;}

public String getGrade() {return grade;}

public void setGrade(String grade) {this.grade = grade;}

public String getHomeAddress() {return homeAddress;}

public void setHomeAddress(String homeAddress) {this.homeAddress = homeAddress;}

public String getHomePhone() {return homePhone;}

public void setHomePhone(String homePhone) {this.homePhone = homePhone;}

public String getMsn() {return msn;}

public void setMsn(String msn) {this.msn = msn;}

public String getName() {return name;}

public void setName(String name) {this.name = name;}

public String getOfficePhone() {return officePhone;}

public void setOfficePhone(String officePhone) {this.officePhone = officePhone;}

public String getPreference() {return preference;}

public void setPreference(String preference) {this.preference = preference;}

public String getResponsibility() {return responsibility;}

public void setResponsibility(String responsibility) {this.responsibility = responsibility;}

public String getSex() {return sex;}

public void setSex(String sex) {this.sex = sex;}

public String getTerm() {return term;}

public void setTerm(String term) {this.term = term;}

public String getType() {return type;}

public void setType(String type) {this.type = type;}

}

ContactPerson.hbm.xml

<hibernate-mapping>

... ...

</class>

</hibernate-mapping>

DataDictionary.java

Package com.axjy.crm.model;

public class DataDictionary extends BaseEntity { //id属性被抽象到BaseEntity.java中

private String category; //字典类别：比如性别、省份、国家等等

private String code; //代码

private String text; //文本

public String getCategory() {return category;}

public void setCategory(String category) {this.category = category;}

public String getCode() {return code;}

public void setCode(String code) {this.code = code;}

public String getText() {return text;}

public void setText(String text) {this.text = text;}

}

DataDictionary.hbm.xml

<hibernate-mapping>

... ...

</class>

</hibernate-mapping>

User.java

package com.axjy.crm.model;

public class User extends BaseEntity{ //id属性被抽象到BaseEntity.java中

private String username;

private String password;

public String getUsername() {return username;}

public void setUsername(String username) {this.username = username;}

public String getPassword() {return password;}

public void setPassword(String password) {this.password = password;}

}

User.hbm.xml

<hibernate-mapping>

... ...

</class>

</hibernate-mapping>

BaseDao.java 抽象出一个基本的 DAO,其它的 DAO 都由此继承

package com.axjy.crm.dao.impl.hibernate;

public class BaseDao extends HibernateDaoSupport {

public void saveEntity(BaseEntity entity){

entity.setDeleted(BaseEntity.STATUS_NORMAL); //添加记录时将删除标志设置为正常

entity.setDeletedTime(null);

getHibernateTemplate().save(entity);

}

public void updateEntity(BaseEntity entity){

getHibernateTemplate().update(entity);

}

public void deleteEntity(BaseEntity entity){

entity.setDeleted(BaseEntity.STATUS_DELETED); //删除记录时将删除标志设置为删除

entity.setDeletedTime(new Date());

getHibernateTemplate().update(entity); //使用修改命令,记录仍存在,只是标上删除标记

}

public List findAllEntities(Class entityClass){ //参数统一从某个具体类型改为类类型

enableDeletedFilter();

return getHibernateTemplate().find("from "+entityClass.getName());

}

public BaseEntity findEntityById(Class entityClass,Serializable id){ //参数关键字id是可以序列化的

return (BaseEntity)getHibernateTemplate().load(entityClass, id);

}

protected void enableDeletedFilter(){ //启用删除标志过滤设置

getHibernateTemplate().enableFilter("deletedFilter").setParameter("deleted",BaseEntity.STATUS_NORMAL);

}

CustomerDAOImpl.java

package com.axjy.crm.dao.impl.hibernate;

public class CustomerDAOImpl extends BaseDao implements CustomerDAO {

public List findCustomers(Customer customer) {

enableDeletedFilter();

List list = null;

list = getSession().createCriteria(customer.getClass())

.add(Example.create(customer).enableLike(MatchMode.ANYWHERE).excludeProperty("address")).list();

//使用投影(projection)进行查询,返回结果是Integer类型，而不是Long类型

Integer rowCount = (Integer)getSession().createCriteria(customer.getClass())

.setProjection(Projections.rowCount())

.add(Example.create(customer).enableLike(MatchMode.ANYWHERE).excludeProperty("address") )

.uniqueResult();

System.out.println(rowCount);

return list;

}

public void save(Customer customer) {saveEntity(customer);}

public void update(Customer customer) {updateEntity(customer);}

public void del(Customer customer) {deleteEntity(customer);}

public List findAll() {return findAllEntities(Customer.class);} //参数统一从某个具体类型改为类类型

public Customer findById(int id) {return (Customer)findEntityById(Customer.class, id);}

}

CustomerManagerTest.java

package com.axjy.crm.manager;

//本测试单元是在没有添加Filter时的测试

public class CustomerManagerTest extends TestCase {

private static BeanFactory factory = new ClassPathXmlApplicationContext("applicationContext-*.xml");

public void testAddCustomer() {

CustomerManager cm = (CustomerManager)factory.getBean("customerManager");

for(int i=0; i<100; i++){

Customer customer = Math.random() > 0.5 ? new CompanyCustomer() : new PersonalCustomer();

customer.setAddress("address地址"+i);

customer.setCity("北京");

customer.setName("客户"+i);

customer.setSn("customer "+Math.random());

cm.addCustomer(customer, 0, 0);

}

//查询对象数据，所有数据能够被查询出来

public void testSearchCustomers() {

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Jerry_zzy

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