Eclipse搭建Maven工程集成Spring4+Hibernate5
Eclipse搭建Maven工程集成Spring4+Hibernate5
这里将以Eclipse搭建Maven工程集成Spring4生成的项目为基础,集成Hibernate5.0.7final。
亲可以参考:
1、使用Eclipse搭建Maven的Web工程
2、Maven的Web工程集成Spring4MVC
昨晚太晚就没完成这一篇,今天来公司了就抽点吃饭的时间补上吧。
从Maven的Web工程集成Spring4将工程下载下来接到后导入到eclipse。
选择Import:
选择导入存在的Maven工程:
选择路径并完成导入:
导入完成后运行一下,一切正常。
(可能会碰到一个错误,请参考:Error:HttpServlet was not found on the Java)
3、Spring4MVC的Maven工程集成Hibernate5
3.1、添加依赖(.jar)
从官网我们可以看到有以下构件:
除了Hibernate需要的jar,还需要数据库驱动等的jar包。
之前在SpringMVC的Maven工程搭建的时候介绍过通过搜索获取jar在仓库地址信息,但是如果有些jar包在仓库找不到而自己有jar包的话,可以先将jar包通过maven命令添加到本地仓库,然后再使用就可以了,下面是将jar添加到本地仓库的Maven命令:
mvn install:install-file -Dfile=jar包的位置 -DgroupId=上面的groupId -DartifactId=上面的artifactId -Dversion=上面的version -Dpackaging=jar
例如,执行以下命令可以将该jar包添加到本地仓库,然后就可以在pom中直接使用了:
- mvn install:install-file -DgroupId=mycommons -DartifactId=pool -Dversion=106 -Dpackaging=jar -Dfile=F:\commons-pool-1.6.jar
配置好后的完整的pom.xml应该是这样:
- <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/maven-v4_0_0.xsd">
- <modelVersion>4.0.0</modelVersion>
- <groupId>anxpp.com</groupId>
- <artifactId>Spring4Hibernate5MVC</artifactId>
- <packaging>war</packaging>
- <version>0.0.1</version>
- <name>Spring4Hibernate5MVC Maven Webapp</name>
- <url>http://maven.apache.org</url>
- <dependencies>
- <dependency>
- <groupId>junit</groupId>
- <artifactId>junit</artifactId>
- <version>3.8.1</version>
- <scope>test</scope>
- </dependency>
- <!-- Spring -->
- <dependency>
- <groupId>org.springframework</groupId>
- <artifactId>spring-aop</artifactId>
- <version>4.2.4.RELEASE</version>
- </dependency>
- <dependency>
- <groupId>org.springframework</groupId>
- <artifactId>spring-context</artifactId>
- <version>4.2.4.RELEASE</version>
- </dependency>
- <dependency>
- <groupId>org.springframework</groupId>
- <artifactId>spring-core</artifactId>
- <version>4.2.4.RELEASE</version>
- </dependency>
- <dependency>
- <groupId>org.springframework</groupId>
- <artifactId>spring-web</artifactId>
- <version>4.2.4.RELEASE</version>
- </dependency>
- <dependency>
- <groupId>org.springframework</groupId>
- <artifactId>spring-webmvc</artifactId>
- <version>4.2.4.RELEASE</version>
- </dependency>
- <dependency>
- <groupId>org.springframework</groupId>
- <artifactId>spring-beans</artifactId>
- <version>4.2.4.RELEASE</version>
- </dependency>
- <dependency>
- <groupId>org.springframework</groupId>
- <artifactId>spring-tx</artifactId>
- <version>4.2.4.RELEASE</version>
- </dependency>
- <dependency>
- <groupId>org.springframework</groupId>
- <artifactId>spring-orm</artifactId>
- <version>4.2.4.RELEASE</version>
- </dependency>
- <dependency>
- <groupId>org.springframework</groupId>
- <artifactId>spring-aspects</artifactId>
- <version>4.2.4.RELEASE</version>
- </dependency>
- <dependency>
- <groupId>org.springframework</groupId>
- <artifactId>spring-expression</artifactId>
- <version>4.2.4.RELEASE</version>
- </dependency>
- <!-- Hibernate -->
- <dependency>
- <groupId>org.hibernate</groupId>
- <artifactId>hibernate-core</artifactId>
- <version>5.0.7.Final</version>
- </dependency>
- <!-- for JPA, use hibernate-entitymanager instead of hibernate-core -->
- <dependency>
- <groupId>org.hibernate</groupId>
- <artifactId>hibernate-entitymanager</artifactId>
- <version>5.0.7.Final</version>
- </dependency>
- <!-- optional -->
- <dependency>
- <groupId>org.hibernate</groupId>
- <artifactId>hibernate-osgi</artifactId>
- <version>5.0.7.Final</version>
- </dependency>
- <dependency>
- <groupId>org.hibernate</groupId>
- <artifactId>hibernate-envers</artifactId>
- <version>5.0.7.Final</version>
- </dependency>
- <dependency>
- <groupId>org.hibernate</groupId>
- <artifactId>hibernate-c3p0</artifactId>
- <version>5.0.7.Final</version>
- </dependency>
- <dependency>
- <groupId>org.hibernate</groupId>
- <artifactId>hibernate-proxool</artifactId>
- <version>5.0.7.Final</version>
- </dependency>
- <dependency>
- <groupId>org.hibernate</groupId>
- <artifactId>hibernate-infinispan</artifactId>
- <version>5.0.7.Final</version>
- </dependency>
- <dependency>
- <groupId>org.hibernate</groupId>
- <artifactId>hibernate-ehcache</artifactId>
- <version>5.0.7.Final</version>
- </dependency>
- <dependency>
- <groupId>antlr</groupId>
- <artifactId>antlr</artifactId>
- <version>2.7.7</version>
- </dependency>
- <dependency>
- <groupId>aopalliance</groupId>
- <artifactId>aopalliance</artifactId>
- <version>1.0</version>
- </dependency>
- <dependency>
- <groupId>org.aspectj</groupId>
- <artifactId>aspectjweaver</artifactId>
- <version>1.8.7</version>
- </dependency>
- <dependency>
- <groupId>commons-logging</groupId>
- <artifactId>commons-logging</artifactId>
- <version>1.2</version>
- </dependency>
- <dependency>
- <groupId>commons-collections</groupId>
- <artifactId>commons-collections</artifactId>
- <version>3.2.1</version>
- </dependency>
- <dependency>
- <groupId>commons-dbcp</groupId>
- <artifactId>commons-dbcp</artifactId>
- <version>1.4</version>
- </dependency>
- <dependency>
- <groupId>commons-lang</groupId>
- <artifactId>commons-lang</artifactId>
- <version>2.1</version>
- </dependency>
- <dependency>
- <groupId>commons-pool</groupId>
- <artifactId>commons-pool</artifactId>
- <version>1.6</version>
- </dependency>
- <dependency>
- <groupId>dom4j</groupId>
- <artifactId>dom4j</artifactId>
- <version>1.6.1</version>
- </dependency>
- <dependency>
- <groupId>mysql</groupId>
- <artifactId>mysql-connector-java</artifactId>
- <version>5.1.9</version>
- </dependency>
- </dependencies>
- <build>
- <finalName>Spring4Hibernate5MVC</finalName>
- <plugins>
- <plugin>
- <groupId>org.apache.maven.plugins</groupId>
- <artifactId>maven-compiler-plugin</artifactId>
- <version>2.3.2</version>
- <configuration>
- <source>1.8</source>
- <target>1.8</target>
- </configuration>
- </plugin>
- </plugins>
- </build>
- </project>
3.2、配置applicationContext.xml
这里主要是配置数据源、Session工厂和声明事务管理,数据的访问使用了Spring的hibernateTemplate,详情参考:hibernateTemplate详解。配置好后完整的applicationContext.xml应该是这样:
- <?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:context="http://www.springframework.org/schema/context"
- xmlns:aop="http://www.springframework.org/schema/aop"xmlns:p="http://www.springframework.org/schema/p"
- xmlns:tx="http://www.springframework.org/schema/tx"xmlns:mvc="http://www.springframework.org/schema/mvc"
- xsi:schemaLocation="http://www.springframework.org/schema/beans
- http://www.springframework.org/schema/beans/spring-beans-4.2.xsd
- http://www.springframework.org/schema/context
- http://www.springframework.org/schema/context/spring-context-4.2.xsd
- http://www.springframework.org/schema/tx
- http://www.springframework.org/schema/tx/spring-tx-4.2.xsd
- http://www.springframework.org/schema/aop
- http://www.springframework.org/schema/aop/spring-aop-4.2.xsd
- http://www.springframework.org/schema/mvc
- http://www.springframework.org/schema/mvc/spring-mvc-4.2.xsd">
- <!-- 开启IOC注解扫描 -->
- <context:component-scan base-package="com.anxpp.demo" />
- <!-- 开启MVC注解扫描 -->
- <mvc:annotation-driven />
- <!-- 以下为数据库和hibernate配置 -->
- <context:property-placeholder location="classpath:/db.properties" />
- <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
- destroy-method="close">
- <property name="driverClassName" value="${jdbc.mysql.driverClassName}" />
- <property name="url" value="${jdbc.mysql.url}" />
- <property name="username" value="${jdbc.mysql.username}" />
- <property name="password" value="${jdbc.mysql.password}" />
- <property name="maxActive" value="100"></property>
- <property name="minIdle" value="20"></property>
- <property name="maxWait" value="3000"></property>
- <property name="initialSize" value="30"></property>
- </bean>
- <bean id="sessionFactory"
- class="org.springframework.orm.hibernate5.LocalSessionFactoryBean">
- <property name="dataSource" ref="dataSource" />
- <property name="packagesToScan">
- <list>
- <value>com.anxpp.demo.core.entity</value>
- </list>
- </property>
- <property name="hibernateProperties">
- <props>
- <prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
- <prop key="hibernate.show_sql">false</prop>
- <prop key="hibernate.format_sql">true</prop>
- <prop key="hibernate.hbm2ddl.auto">update</prop>
- </props>
- </property>
- </bean>
- <bean id="hibernateTemplateMysql" class="org.springframework.orm.hibernate5.HibernateTemplate">
- <property name="sessionFactory" ref="sessionFactory"></property>
- </bean>
- <!-- 定义事务管理器(声明式的事务) -->
- <bean id="transactionManager"
- class="org.springframework.orm.hibernate5.HibernateTransactionManager">
- <property name="sessionFactory" ref="sessionFactory" />
- </bean>
- <tx:advice id="txAdvice" transaction-manager="transactionManager">
- <tx:attributes>
- <tx:method name="*" propagation="REQUIRED" />
- </tx:attributes>
- </tx:advice>
- <aop:config>
- <aop:pointcut id="interceptorPointCuts"
- expression="execution(* com.anxpp.demo.core.service..*.*(..))" />
- <aop:advisor advice-ref="txAdvice" pointcut-ref="interceptorPointCuts" />
- </aop:config>
- <!-- 以下为视图映射配置 -->
- <bean
- class="org.springframework.web.servlet.view.InternalResourceViewResolver">
- <property name="prefix" value="/WEB-INF/views/" />
- <property name="suffix" value=".jsp" />
- </bean>
- <!-- 其他配置 -->
- <!-- 静态文件访问 -->
- <mvc:default-servlet-handler />
- </beans>
这里还要在applicationContext.xml同目录下创建数据库连接配置文件db.properties,可以看到applicationContext.xml中配置的数据库连接时通过<context:property-placeholder location="classpath:/db.properties" />引入的外部文件配置的,这样方便管理,db.properties中的内容如下:
- #mysql
- jdbc.mysql.driverClassName=com.mysql.jdbc.Driver
- jdbc.mysql.url=jdbc:mysql://127.0.0.1:3306/demo?createDatabaseIfNotExist=true
- jdbc.mysql.username=root
- jdbc.mysql.password=****
这样,相关的所有配置都完成就,可以直接开始写代码了。
3.3、编写测试代码
要写的代码有entity、dao及实现,service及实现和Controller,entity通常是与数据库中表对应的实体,dao是数据库访问的底层实现,service是管理事物的,处理一下逻辑,Controller是对外的接口。
entity(User.java):
- package com.anxpp.demo.core.entity;
- import javax.persistence.Entity;
- import javax.persistence.GeneratedValue;
- import javax.persistence.GenerationType;
- import javax.persistence.Id;
- import javax.persistence.Table;
- @Entity
- @Table(name="DEMO_User")
- public class User {
- @Id
- @GeneratedValue(strategy = GenerationType.AUTO)
- private int id;
- private String name;
- public User(){}
- public User(String name){
- this.name = name; }
- @Override
- public String toString() {
- return "{id:" + id + ",name:" + name + "}";
- }
- public int getId() {
- return id; }
- public void setId(int id) {
- this.id = id; }
- public String getName() {
- return name; }
- public void setName(String name) {
- this.name = name; }
- }
Dao(DemoDao.java):
- package com.anxpp.demo.core.dao;
- import java.util.List;
- import com.anxpp.demo.core.entity.User;
- public interface DemoDao {
- String test();
- void save(Object entity);
- Object findById(int id);
- void delete(Object entity);
- List<User> findAll();
- }
DaoImpl(DemoDaoImpl.java):
(ps:这里用到了java8的新特性,若jdk版本低于1.8,请改为老版写法)
- package com.anxpp.demo.core.dao.impl;
- import java.util.List;
- import org.hibernate.Query;
- import org.hibernate.Session;
- import org.springframework.beans.factory.annotation.Autowired;
- import org.springframework.orm.hibernate5.HibernateTemplate;
- import org.springframework.stereotype.Repository;
- import com.anxpp.demo.core.dao.DemoDao;
- import com.anxpp.demo.core.entity.User;
- @Repository
- public class DemoDaoImpl implements DemoDao {
- @Autowired
- protected HibernateTemplate hibernateTemplateMysql;
- public String test() {
- return "hello word!";
- }
- public void save(Object entity) {
- hibernateTemplateMysql.save(entity);
- }
- public void delete(Object entity) {
- hibernateTemplateMysql.delete(entity);
- }
- @SuppressWarnings("unchecked")
- public List<User> findAll() {
- return (List<User>) hibernateTemplateMysql.find("from User");
- }
- @SuppressWarnings({ })
- public Object findById(final int id) {
// return hibernateTemplateMysql.execute(new HibernateCallback() {
- // @Override
- // public Object doInHibernate(Session session) throws HibernateException {
- // String hql = "from User where id=?";
- // Query query = session.createQuery(hql);
- // query.setParameter(0, id);
- // return query.uniqueResult();
- // }
- // });//这是老版本写法 下面是java8中的写法
- return hibernateTemplateMysql.execute((Session session)-> {
- String hql = "from User where id=?";
- Query query = session.createQuery(hql);
- query.setParameter(0, id);
- return query.uniqueResult();
- });
- }
- }
service(DemoService.java):
- package com.anxpp.demo.core.service;
- public interface DemoService {
- String test();
- Object save(String name);
- boolean delete(int id);
- String findAll();
- }
serviceImpl(DemoServiceImpl.java):
- package com.anxpp.demo.core.service.impl;
- import org.springframework.beans.factory.annotation.Autowired;
- import org.springframework.stereotype.Service;
- import com.anxpp.demo.core.dao.DemoDao;
- import com.anxpp.demo.core.entity.User;
- import com.anxpp.demo.core.service.DemoService;
- @Service
- public class DemoServiceImpl implements DemoService {
- @Autowired
- DemoDao demoDao;
- public String test() {
- return demoDao.test(); }
- public Object save(String name) {
- User user = new User(name);
- demoDao.save(user);
- return user; }
- public boolean delete(int id) {
- User user = (User) demoDao.findById(id);
- if(user==null) return false;
- demoDao.delete(user);
- return true; }
- public String findAll() {
- String r = "";
- for(User user:demoDao.findAll()) r += user;
- return r; }
- }
controller(DemoController.java):
- package com.anxpp.demo.controller;
- import org.springframework.beans.factory.annotation.Autowired;
- import org.springframework.stereotype.Controller;
- import org.springframework.web.bind.annotation.RequestMapping;
- import org.springframework.web.bind.annotation.ResponseBody;
- import com.anxpp.demo.core.service.DemoService;
- @Controller
- @RequestMapping("/")
- public class DemoConreoller {
- @Autowired
- DemoService demoService;
- @RequestMapping("/")
- public String index(){
- return "index"; }
- @RequestMapping("/test")
- @ResponseBody
- public String testRerutnString(){
- return "Hello Word!"; }
- @RequestMapping(value="/save",produces = {"application/json;charset=UTF-8"})
- @ResponseBody
- public String save(String name){
- return "save" + demoService.save(name).toString(); }
- @RequestMapping(value="/del",produces = {"application/json;charset=UTF-8"})
- @ResponseBody
- public String delete(int id){
- return "del:" + demoService.delete(id); }
- @RequestMapping(value="/find",produces = {"application/json;charset=UTF-8"})
- @ResponseBody
- public String findAll(){
- return "find:" + demoService.findAll(); }
- }
到这儿代码就编写完成了,可以开始测试了。
3.4、运行测试
终于又到了见证成果的时候了,右键项目在服务器上运行,首先访问首页证明服务可用,起初数据库是空的,我们就增加一条数据后查询全部,再增加一条后查询全部,删除一条后查询全部即可验证功能。
访问首页(http://localhost:8000/Spring4Hibernate5MVC/):
添加一条数据(http://localhost:8000/Spring4Hibernate5MVC/save?name=anxpp.com):
查询全部数据(http://localhost:8000/Spring4Hibernate5MVC/find):
再次添加一条数据(http://localhost:8000/Spring4Hibernate5MVC/save?name=gianthard):
查询全部数据(http://localhost:8000/Spring4Hibernate5MVC/find):
删除一条数据(http://localhost:8000/Spring4Hibernate5MVC/del?id=5):
查询全部数据(http://localhost:8000/Spring4Hibernate5MVC/find):
有次可见,所有操作都是有效的,但是如果del的时候传入一个错误的id,就不能有效操作成功,但是服务器会返回del:false的提示。
3.5、下载
对了,我好饿!
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