前几天看到Hibernate与Lucene的整合框架Hiberate Search3.0.0.GA版出来了,昨天试这写了一个Demo,感觉用起来的确很方便的,贴出来与大家分享一下。
1、创建POJO
Hibernate Search相关的Annotation主要有两个:
@Indexed 标识需要进行索引的对象,
属性 index 指定索引文件的路径
@Field 标注在类的get属性上,标识一个索引的Field
属性 index 指定是否索引,与Lucene相同
store 指定是否索引,与Lucene相同
name 指定Field的name,默认为类属性的名称
analyzer 指定分析器
另外@IndexedEmbedded 与 @ContainedIn 用于关联类之间的索引
@IndexedEmbedded有两个属性,一个prefix指定关联的前缀,一个depth指定关联的深度
如上面两个类中Department类可以通过部门名称name来索引部门,在Employee与部门关联的前缀为dept_,因此可以通过部门名称dept_name来索引一个部门里的所有员工。
2、配置文件
3、测试代码
1、创建POJO
package com.yehui;
import javax.persistence.CascadeType;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToOne;
import javax.persistence.Table;
import org.hibernate.search.annotations.DocumentId;
import org.hibernate.search.annotations.Field;
import org.hibernate.search.annotations.Index;
import org.hibernate.search.annotations.Indexed;
import org.hibernate.search.annotations.IndexedEmbedded;
import org.hibernate.search.annotations.Store;
/**
* Employee generated by MyEclipse Persistence Tools
*/
@Entity
@Table(name = "employee", catalog = "hise", uniqueConstraints = {})
@Indexed(index = "indexes/employee")
public class Employee implements java.io.Serializable {
private static final long serialVersionUID = 7794235365739814541L;
private Integer empId;
private String empName;
private Department dept;
private String empNo;
private Double empSalary;
// Constructors
/** default constructor */
public Employee() {
}
/** minimal constructor */
public Employee(Integer empId) {
this.empId = empId;
}
/** full constructor */
public Employee(Integer empId, String empName,
String empNo, Double empSalary) {
this.empId = empId;
this.empName = empName;
this.empNo = empNo;
this.empSalary = empSalary;
}
// Property accessors
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
@Column(name = "emp_id", unique = true, nullable = false, insertable = true, updatable = true)
@DocumentId
public Integer getEmpId() {
return this.empId;
}
public void setEmpId(Integer empId) {
this.empId = empId;
}
@Column(name = "emp_name", unique = false, nullable = true, insertable = true, updatable = true, length = 30)
@Field(name="name", index=Index.TOKENIZED, store=Store.YES)
public String getEmpName() {
return this.empName;
}
public void setEmpName(String empName) {
this.empName = empName;
}
@Column(name = "emp_no", unique = false, nullable = true, insertable = true, updatable = true, length = 30)
@Field(index=Index.UN_TOKENIZED)
public String getEmpNo() {
return this.empNo;
}
public void setEmpNo(String empNo) {
this.empNo = empNo;
}
@Column(name = "emp_salary", unique = false, nullable = true, insertable = true, updatable = true, precision = 7)
public Double getEmpSalary() {
return this.empSalary;
}
public void setEmpSalary(Double empSalary) {
this.empSalary = empSalary;
}
@ManyToOne(cascade = CascadeType.ALL)
@JoinColumn(name="dept_id")
@IndexedEmbedded(prefix="dept_", depth=1)
public Department getDept() {
return dept;
}
public void setDept(Department dept) {
this.dept = dept;
}
}
import javax.persistence.CascadeType;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToOne;
import javax.persistence.Table;
import org.hibernate.search.annotations.DocumentId;
import org.hibernate.search.annotations.Field;
import org.hibernate.search.annotations.Index;
import org.hibernate.search.annotations.Indexed;
import org.hibernate.search.annotations.IndexedEmbedded;
import org.hibernate.search.annotations.Store;
/**
* Employee generated by MyEclipse Persistence Tools
*/
@Entity
@Table(name = "employee", catalog = "hise", uniqueConstraints = {})
@Indexed(index = "indexes/employee")
public class Employee implements java.io.Serializable {
private static final long serialVersionUID = 7794235365739814541L;
private Integer empId;
private String empName;
private Department dept;
private String empNo;
private Double empSalary;
// Constructors
/** default constructor */
public Employee() {
}
/** minimal constructor */
public Employee(Integer empId) {
this.empId = empId;
}
/** full constructor */
public Employee(Integer empId, String empName,
String empNo, Double empSalary) {
this.empId = empId;
this.empName = empName;
this.empNo = empNo;
this.empSalary = empSalary;
}
// Property accessors
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
@Column(name = "emp_id", unique = true, nullable = false, insertable = true, updatable = true)
@DocumentId
public Integer getEmpId() {
return this.empId;
}
public void setEmpId(Integer empId) {
this.empId = empId;
}
@Column(name = "emp_name", unique = false, nullable = true, insertable = true, updatable = true, length = 30)
@Field(name="name", index=Index.TOKENIZED, store=Store.YES)
public String getEmpName() {
return this.empName;
}
public void setEmpName(String empName) {
this.empName = empName;
}
@Column(name = "emp_no", unique = false, nullable = true, insertable = true, updatable = true, length = 30)
@Field(index=Index.UN_TOKENIZED)
public String getEmpNo() {
return this.empNo;
}
public void setEmpNo(String empNo) {
this.empNo = empNo;
}
@Column(name = "emp_salary", unique = false, nullable = true, insertable = true, updatable = true, precision = 7)
public Double getEmpSalary() {
return this.empSalary;
}
public void setEmpSalary(Double empSalary) {
this.empSalary = empSalary;
}
@ManyToOne(cascade = CascadeType.ALL)
@JoinColumn(name="dept_id")
@IndexedEmbedded(prefix="dept_", depth=1)
public Department getDept() {
return dept;
}
public void setDept(Department dept) {
this.dept = dept;
}
}
package com.yehui;
import java.util.List;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.OneToMany;
import javax.persistence.Table;
import org.hibernate.search.annotations.ContainedIn;
import org.hibernate.search.annotations.DocumentId;
import org.hibernate.search.annotations.Field;
import org.hibernate.search.annotations.Index;
import org.hibernate.search.annotations.Indexed;
import org.hibernate.search.annotations.Store;
/**
* Department generated by MyEclipse Persistence Tools
*/
@Entity
@Table(name = "department", catalog = "hise", uniqueConstraints = {})
@Indexed(index="indexes/department")
public class Department implements java.io.Serializable {
private static final long serialVersionUID = 7891065193118612907L;
private Integer deptId;
private String deptNo;
private String deptName;
private List<Employee> empList;
// Constructors
@OneToMany(mappedBy="dept")
@ContainedIn
public List<Employee> getEmpList() {
return empList;
}
public void setEmpList(List<Employee> empList) {
this.empList = empList;
}
/** default constructor */
public Department() {
}
/** minimal constructor */
public Department(Integer deptId) {
this.deptId = deptId;
}
/** full constructor */
public Department(Integer deptId, String deptNo, String deptName) {
this.deptId = deptId;
this.deptNo = deptNo;
this.deptName = deptName;
}
// Property accessors
@Id
@GeneratedValue(strategy=GenerationType.AUTO)
@Column(name = "dept_id", unique = true, nullable = false, insertable = true, updatable = true)
@DocumentId
public Integer getDeptId() {
return this.deptId;
}
public void setDeptId(Integer deptId) {
this.deptId = deptId;
}
@Column(name = "dept_no", unique = false, nullable = true, insertable = true, updatable = true, length = 30)
public String getDeptNo() {
return this.deptNo;
}
public void setDeptNo(String deptNo) {
this.deptNo = deptNo;
}
@Column(name = "dept_name", unique = false, nullable = true, insertable = true, updatable = true, length = 30)
@Field(name="name", index=Index.TOKENIZED,store=Store.YES)
public String getDeptName() {
return this.deptName;
}
public void setDeptName(String deptName) {
this.deptName = deptName;
}
}
不了解Hibernate映射相关的Annotation的朋友可以到Hibernate的官方网站下载Hibernate Annotation Reference,有http://wiki.redsaga.com/翻译的中文文档。当然,也可以直接使用hbm.xml文件。import java.util.List;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.OneToMany;
import javax.persistence.Table;
import org.hibernate.search.annotations.ContainedIn;
import org.hibernate.search.annotations.DocumentId;
import org.hibernate.search.annotations.Field;
import org.hibernate.search.annotations.Index;
import org.hibernate.search.annotations.Indexed;
import org.hibernate.search.annotations.Store;
/**
* Department generated by MyEclipse Persistence Tools
*/
@Entity
@Table(name = "department", catalog = "hise", uniqueConstraints = {})
@Indexed(index="indexes/department")
public class Department implements java.io.Serializable {
private static final long serialVersionUID = 7891065193118612907L;
private Integer deptId;
private String deptNo;
private String deptName;
private List<Employee> empList;
// Constructors
@OneToMany(mappedBy="dept")
@ContainedIn
public List<Employee> getEmpList() {
return empList;
}
public void setEmpList(List<Employee> empList) {
this.empList = empList;
}
/** default constructor */
public Department() {
}
/** minimal constructor */
public Department(Integer deptId) {
this.deptId = deptId;
}
/** full constructor */
public Department(Integer deptId, String deptNo, String deptName) {
this.deptId = deptId;
this.deptNo = deptNo;
this.deptName = deptName;
}
// Property accessors
@Id
@GeneratedValue(strategy=GenerationType.AUTO)
@Column(name = "dept_id", unique = true, nullable = false, insertable = true, updatable = true)
@DocumentId
public Integer getDeptId() {
return this.deptId;
}
public void setDeptId(Integer deptId) {
this.deptId = deptId;
}
@Column(name = "dept_no", unique = false, nullable = true, insertable = true, updatable = true, length = 30)
public String getDeptNo() {
return this.deptNo;
}
public void setDeptNo(String deptNo) {
this.deptNo = deptNo;
}
@Column(name = "dept_name", unique = false, nullable = true, insertable = true, updatable = true, length = 30)
@Field(name="name", index=Index.TOKENIZED,store=Store.YES)
public String getDeptName() {
return this.deptName;
}
public void setDeptName(String deptName) {
this.deptName = deptName;
}
}
Hibernate Search相关的Annotation主要有两个:
@Indexed 标识需要进行索引的对象,
属性 index 指定索引文件的路径
@Field 标注在类的get属性上,标识一个索引的Field
属性 index 指定是否索引,与Lucene相同
store 指定是否索引,与Lucene相同
name 指定Field的name,默认为类属性的名称
analyzer 指定分析器
另外@IndexedEmbedded 与 @ContainedIn 用于关联类之间的索引
@IndexedEmbedded有两个属性,一个prefix指定关联的前缀,一个depth指定关联的深度
如上面两个类中Department类可以通过部门名称name来索引部门,在Employee与部门关联的前缀为dept_,因此可以通过部门名称dept_name来索引一个部门里的所有员工。
2、配置文件
<?xml version='1.0' encoding='UTF-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<property name="hibernate.dialect">
org.hibernate.dialect.MySQLDialect
</property>
<property name="hibernate.connection.url">
jdbc:mysql://localhost:3306/hise
</property>
<property name="hibernate.connection.username">root</property>
<property name="hibernate.connection.password">123456</property>
<property name="hibernate.connection.driver_class">
com.mysql.jdbc.Driver
</property>
<property name="hibernate.search.default.directory_provider">
org.hibernate.search.store.FSDirectoryProvider
</property>
<property name="hibernate.search.default.indexBase">e:/index</property>
<mapping class="com.yehui.Employee" />
<mapping class="com.yehui.Department" />
</session-factory>
</hibernate-configuration>
如果使用JPA,配置文件为<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<property name="hibernate.dialect">
org.hibernate.dialect.MySQLDialect
</property>
<property name="hibernate.connection.url">
jdbc:mysql://localhost:3306/hise
</property>
<property name="hibernate.connection.username">root</property>
<property name="hibernate.connection.password">123456</property>
<property name="hibernate.connection.driver_class">
com.mysql.jdbc.Driver
</property>
<property name="hibernate.search.default.directory_provider">
org.hibernate.search.store.FSDirectoryProvider
</property>
<property name="hibernate.search.default.indexBase">e:/index</property>
<mapping class="com.yehui.Employee" />
<mapping class="com.yehui.Department" />
</session-factory>
</hibernate-configuration>
<?xml version="1.0" encoding="UTF-8"?>
<persistence xmlns="http://java.sun.com/xml/ns/persistence"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence
http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd" version="1.0">
<persistence-unit name="jpaPU" transaction-type="RESOURCE_LOCAL">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<class>com.yehui.Department</class>
<class>com.yehui.Employee</class>
<properties>
<property name="hibernate.connection.driver_class"
value="com.mysql.jdbc.Driver" />
<property name="hibernate.connection.url"
value="jdbc:mysql://localhost:3306/hise" />
<property name="hibernate.connection.username" value="root" />
<property name="hibernate.connection.password"
value="123456" />
<property name="hibernate.search.default.directory_provider"
value="org.hibernate.search.store.FSDirectoryProvider"/>
<property name="hibernate.search.default.indexBase"
value="e:/index"/>
</properties>
</persistence-unit>
</persistence>
主要就是添加两个属性,hibernate.search.default.directory_provider指定Directory的代理,即把索引的文件保存在硬盘中(org.hibernate.search.store.FSDirectoryProvider)还是内存里(org.hibernate.search.store.RAMDirectoryProvider),保存在硬盘的话hibernate.search.default.indexBase属性指定索引保存的路径。<persistence xmlns="http://java.sun.com/xml/ns/persistence"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence
http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd" version="1.0">
<persistence-unit name="jpaPU" transaction-type="RESOURCE_LOCAL">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<class>com.yehui.Department</class>
<class>com.yehui.Employee</class>
<properties>
<property name="hibernate.connection.driver_class"
value="com.mysql.jdbc.Driver" />
<property name="hibernate.connection.url"
value="jdbc:mysql://localhost:3306/hise" />
<property name="hibernate.connection.username" value="root" />
<property name="hibernate.connection.password"
value="123456" />
<property name="hibernate.search.default.directory_provider"
value="org.hibernate.search.store.FSDirectoryProvider"/>
<property name="hibernate.search.default.indexBase"
value="e:/index"/>
</properties>
</persistence-unit>
</persistence>
3、测试代码
package com.yehui;
import static junit.framework.Assert.assertNotNull;
import static junit.framework.Assert.assertTrue;
import java.util.List;
import org.apache.lucene.analysis.StopAnalyzer;
import org.apache.lucene.queryParser.QueryParser;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.AnnotationConfiguration;
import org.hibernate.search.FullTextSession;
import org.hibernate.search.Search;
import org.junit.After;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;
public class SearchResultsHibernate {
private static SessionFactory sf = null;
private static Session session = null;
private static Transaction tx = null;
@BeforeClass
public static void setupBeforeClass() throws Exception {
sf = new AnnotationConfiguration().configure("hibernate.cfg.xml").buildSessionFactory();
assertNotNull(sf);
}
@Before
public void setUp() throws Exception {
session = sf.openSession();
tx = session.beginTransaction();
tx.begin();
}
@After
public void tearDown() throws Exception {
tx.commit();
session.close();
}
public static void tearDownAfterClass() throws Exception {
if (sf != null)
sf.close();
}
@Test
public void testAddDept() throws Exception {
Department dept = new Department();
dept.setDeptName("Market");
dept.setDeptNo("6000");
Employee emp = new Employee();
emp.setDept(dept);
emp.setEmpName("Kevin");
emp.setEmpNo("KGP1213");
emp.setEmpSalary(8000d);
session.save(emp);
}
@Test
public void testFindAll() throws Exception {
Query query = session.createQuery("from Department");
List<Department> deptList = query.list();
assertTrue(deptList.size() > 0);
}
@Test
public void testIndex() throws Exception {
FullTextSession fullTextSession = Search.createFullTextSession(session);
assertNotNull(session);
QueryParser parser = new QueryParser("name", new StopAnalyzer());
org.apache.lucene.search.Query luceneQuery = parser
.parse("name:Kevin");
Query hibQuery = fullTextSession.createFullTextQuery(luceneQuery,
Employee.class);
List list = hibQuery.list();
assertTrue(list.size() > 0);
}
@Test
public void testIndex2() throws Exception {
FullTextSession fullTextSession = Search.createFullTextSession(session);
assertNotNull(session);
QueryParser parser = new QueryParser("dept_name", new StopAnalyzer());
org.apache.lucene.search.Query luceneQuery = parser
.parse("dept_name:Market");
Query hibQuery = fullTextSession.createFullTextQuery(luceneQuery,
Employee.class);
List list = hibQuery.list();
assertTrue(list.size() > 0);
}
}
测试通过。OKimport static junit.framework.Assert.assertNotNull;
import static junit.framework.Assert.assertTrue;
import java.util.List;
import org.apache.lucene.analysis.StopAnalyzer;
import org.apache.lucene.queryParser.QueryParser;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.AnnotationConfiguration;
import org.hibernate.search.FullTextSession;
import org.hibernate.search.Search;
import org.junit.After;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;
public class SearchResultsHibernate {
private static SessionFactory sf = null;
private static Session session = null;
private static Transaction tx = null;
@BeforeClass
public static void setupBeforeClass() throws Exception {
sf = new AnnotationConfiguration().configure("hibernate.cfg.xml").buildSessionFactory();
assertNotNull(sf);
}
@Before
public void setUp() throws Exception {
session = sf.openSession();
tx = session.beginTransaction();
tx.begin();
}
@After
public void tearDown() throws Exception {
tx.commit();
session.close();
}
public static void tearDownAfterClass() throws Exception {
if (sf != null)
sf.close();
}
@Test
public void testAddDept() throws Exception {
Department dept = new Department();
dept.setDeptName("Market");
dept.setDeptNo("6000");
Employee emp = new Employee();
emp.setDept(dept);
emp.setEmpName("Kevin");
emp.setEmpNo("KGP1213");
emp.setEmpSalary(8000d);
session.save(emp);
}
@Test
public void testFindAll() throws Exception {
Query query = session.createQuery("from Department");
List<Department> deptList = query.list();
assertTrue(deptList.size() > 0);
}
@Test
public void testIndex() throws Exception {
FullTextSession fullTextSession = Search.createFullTextSession(session);
assertNotNull(session);
QueryParser parser = new QueryParser("name", new StopAnalyzer());
org.apache.lucene.search.Query luceneQuery = parser
.parse("name:Kevin");
Query hibQuery = fullTextSession.createFullTextQuery(luceneQuery,
Employee.class);
List list = hibQuery.list();
assertTrue(list.size() > 0);
}
@Test
public void testIndex2() throws Exception {
FullTextSession fullTextSession = Search.createFullTextSession(session);
assertNotNull(session);
QueryParser parser = new QueryParser("dept_name", new StopAnalyzer());
org.apache.lucene.search.Query luceneQuery = parser
.parse("dept_name:Market");
Query hibQuery = fullTextSession.createFullTextQuery(luceneQuery,
Employee.class);
List list = hibQuery.list();
assertTrue(list.size() > 0);
}
}
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Hibernate Search的作用是对数据库中的数据进行检索的。它是hibernate对著名的全文检索系统Lucene的一个集成方案,作用在于对数据表中某些内容庞大的字段(如声明为text的字段)建立全文索引,这样通过hibernate ...
hibernate-search, Hibernate Search Hibernate 搜索版本:5.8.0. Final - 13-09-2017描述针对Java对象的全文搜索这个项目提供 Hibernate ORM和全文索引服务( 如 Apache Lucene和 Elasticsearch
3. **Hibernate Search**:作为Hibernate的一个扩展,Hibernate Search提供了基于Lucene的全文检索功能,使得在数据库中的数据可以被快速、精确地搜索。 **二、集成Hibernate Search** 1. **配置依赖**:首先,你...
《Hibernate Search in Action》是一本深入探讨Hibernate Search技术的专业书籍,配合源代码一同学习,能够帮助读者更好地理解和应用这项强大的全文检索和分析框架。Hibernate Search是Hibernate ORM的一个扩展,它...
Hibernate Search 是一个强大的全文搜索引擎框架,它将Apache Lucene库集成到Hibernate ORM中,使得在Java应用程序中实现复杂的全文检索和分析功能变得简单。这个"hibernate-search-5.5.4 api docset for Dash"是...
《Hibernate Search 3.4.0.Final:深入探索企业级数据检索的利器》 Hibernate Search,作为Hibernate ORM框架的一个强大扩展,为Java开发者提供了一种在持久化数据上进行全文搜索的能力。这个3.4.0.Final版本是...
Hibernate Search 4.4.0.Final API 帮助文档
标题:hibernate_search.pdf 描述与标签:此文档详细介绍了Hibernate Search的使用与配置,一个为Hibernate ORM提供全文搜索功能的扩展。该文档版本为3.1.0.GA,深入探讨了如何将Apache Lucene集成到Hibernate ORM...
《Hibernate Search in Action》这本书是关于Java开发中利用Hibernate Search框架进行全文检索的权威指南。Hibernate Search是一个在Hibernate ORM之上构建的搜索引擎,它允许开发者在Java应用中实现强大的、数据库...
本资源提供了基于Hibernate Search实现的全文搜索引擎的完整代码和配置文件,适用于处理中英文数据,具备拼音搜索、错误纠正和搜索建议等高级功能。 Hibernate Search是Hibernate ORM的一个扩展,它允许开发者在...