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[Java教程]Spring + Spring MVC + Hibernate项目开发集成(注解)


  在自己从事的项目中都是使用

  本项目使用maven构建,采用Spring + Spring MVC + Hibernate + MySQL进行搭建,下面简要说明本项目所使用软件版本:

     maven:3.2.3
     hibernate:4.3.9.Final
     spring:4.1.6.RELEASE
     mysql:5.1.35

  接下来我看一下项目的整体结构:

  

     

下面我们开始框架的搭建之旅吧。

一,配置文件

1,首先配置pom.

<project ="http://maven.apache.org/POM/4.0.0" ="http://www.w3.org/2001/  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>cn</groupId>  <artifactId>mylife</artifactId>  <packaging>war</packaging>  <version>0.0.1-SNAPSHOT</version>  <name>mylife Maven Webapp</name>  <url>http://maven.apache.org</url>    <!-- 设置使用框架的版本 -->  <properties>    <hibernate-version>4.3.9.Final</hibernate-version>    <spring-version>4.1.6.RELEASE</spring-version>    <mysql-driver-version>5.1.35</mysql-driver-version>  </properties>  <dependencies>    <dependency>      <groupId>junit</groupId>      <artifactId>junit</artifactId>      <version>4.12</version>    </dependency>    <!-- servlet api -->    <dependency>      <groupId>javax.servlet</groupId>      <artifactId>javax.servlet-api</artifactId>      <version>3.1.0</version>    </dependency>    <!-- jstl -->    <dependency>      <groupId>jstl</groupId>      <artifactId>jstl</artifactId>      <version>1.2</version>    </dependency>    <!-- hibernate -->    <dependency>      <groupId>org.hibernate</groupId>      <artifactId>hibernate-core</artifactId>      <version>${hibernate-version}</version>    </dependency>    <!-- spring -->    <dependency>      <groupId>org.springframework</groupId>      <artifactId>spring-context</artifactId>      <version>${spring-version}</version>    </dependency>    <dependency>      <groupId>org.springframework</groupId>      <artifactId>spring-webmvc</artifactId>      <version>${spring-version}</version>    </dependency>    <dependency>      <groupId>org.springframework</groupId>      <artifactId>spring-jdbc</artifactId>      <version>${spring-version}</version>    </dependency>    <dependency>      <groupId>org.springframework</groupId>      <artifactId>spring-orm</artifactId>      <version>${spring-version}</version>    </dependency>    <dependency>      <groupId>org.springframework</groupId>      <artifactId>spring-context-support</artifactId>      <version>${spring-version}</version>    </dependency>    <dependency>      <groupId>org.springframework</groupId>      <artifactId>spring-expression</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-test</artifactId>      <version>${spring-version}</version>    </dependency>    <dependency>      <groupId>org.springframework</groupId>      <artifactId>spring-oxm</artifactId>      <version>${spring-version}</version>    </dependency>    <dependency>      <groupId>org.springframework</groupId>      <artifactId>spring-webmvc-portlet</artifactId>      <version>${spring-version}</version>    </dependency>    <dependency>      <groupId>org.springframework</groupId>      <artifactId>spring-messaging</artifactId>      <version>${spring-version}</version>    </dependency>    <dependency>      <groupId>org.springframework</groupId>      <artifactId>spring-instrument</artifactId>      <version>${spring-version}</version>    </dependency>    <!-- MySQL驱动 -->    <dependency>      <groupId>mysql</groupId>      <artifactId>mysql-connector-java</artifactId>      <version>${mysql-driver-version}</version>    </dependency>    <!-- dbcp -->    <dependency>      <groupId>commons-dbcp</groupId>      <artifactId>commons-dbcp</artifactId>      <version>1.4</version>    </dependency>    <dependency>      <groupId>commons-io</groupId>      <artifactId>commons-io</artifactId>      <version>2.4</version>    </dependency>  </dependencies>  <build>    <finalName>mylife</finalName>    <plugins>      <plugin>        <groupId>org.apache.maven.plugins</groupId>        <artifactId>maven-compiler-plugin</artifactId>        <configuration>          <source>1.8</source>          <target>1.8</target>        </configuration>      </plugin>    </plugins>  </build></project>

2,配置Spring MVC,在calsspath路径下创建一个spring-mvc.

 1 <??> 2 <beans ="http://www.springframework.org/schema/beans" 3   ="http://www.w3.org/2001/ 4   ="http://www.springframework.org/schema/aop" 5   ="http://www.springframework.org/schema/cache" 6   ="http://www.springframework.org/schema/context" 7   ="http://www.springframework.org/schema/jdbc" 8   ="http://www.springframework.org/schema/jee" 9   ="http://www.springframework.org/schema/jms"10   ="http://www.springframework.org/schema/lang"11   ="http://www.springframework.org/schema/mvc"12   ="http://www.springframework.org/schema/oxm"13   ="http://www.springframework.org/schema/task"14   ="http://www.springframework.org/schema/tx"15   ="http://www.springframework.org/schema/util"16   xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd17     http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd18     http://www.springframework.org/schema/cache http://www.springframework.org/schema/cache/spring-cache-4.0.xsd19     http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd20     http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-4.0.xsd21     http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-4.0.xsd22     http://www.springframework.org/schema/jms http://www.springframework.org/schema/jms/spring-jms-4.0.xsd23     http://www.springframework.org/schema/lang http://www.springframework.org/schema/lang/spring-lang-4.0.xsd24     http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd25     http://www.springframework.org/schema/oxm http://www.springframework.org/schema/oxm/spring-oxm-4.0.xsd26     http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-4.0.xsd27     http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd28     http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd">29   <!-- 扫描controller组件 -->30   <context:component-scan base-package="cn.mylife.controller"/>31   <!-- 配置视图解析器 -->32   <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">33     <property name="viewClass" value="org.springframework.web.servlet.view.JstlView" />34     <property name="prefix" value="/WEB-INF/" />35     <property name="suffix" value=".jsp" />36   </bean>37   <!-- 启动springMVC注解 -->38   <mvc:annotation-driven/>39   40 </beans>

3,配置web.

<??><web-app ="http://www.w3.org/2001/ ="http:// xsi:schemaLocation="http:// id="WebApp_ID" version="3.1">  <display-name>mylife</display-name>    <!-- 启动服务时加载的文件 -->  <context-param>    <param-name>contextConfigLocation</param-name>    <param-value>classpath:applicationContext.</param-value>  </context-param>  <context-param>    <!-- 日志配置文件路径 -->    <param-name>log4jConfigLocation</param-name>    <param-value>classpath:log4j.properties</param-value>  </context-param>  <context-param>    <!-- 日志页面的刷新间隔 -->    <param-name>log4jRefreshInterval</param-name>    <param-value>6000</param-value>  </context-param>    <listener>    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>  </listener>    <servlet>    <servlet-name>spring-mvc</servlet-name>    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>    <init-param>      <param-name>contextConfigLocation</param-name>      <param-value>classpath:spring-mvc.</param-value>    </init-param>    <load-on-startup>1</load-on-startup>  </servlet>  <servlet-mapping>    <servlet-name>spring-mvc</servlet-name>    <url-pattern>*.do</url-pattern>  </servlet-mapping>  <filter>    <filter-name>encoding</filter-name>    <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>    <init-param>      <param-name>encoding</param-name>      <param-value>UTF-8</param-value>    </init-param>  </filter>  <filter-mapping>    <filter-name>encoding</filter-name>    <url-pattern>/*</url-pattern>  </filter-mapping>    <error-page>    <error-code>404</error-code>    <location>/404.html</location>  </error-page>   <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>

4,配置Spring,在classpath路径下新建applicationContext.

<??><beans ="http://www.springframework.org/schema/beans"  ="http://www.w3.org/2001/  ="http://www.springframework.org/schema/aop"  ="http://www.springframework.org/schema/cache"  ="http://www.springframework.org/schema/context"  ="http://www.springframework.org/schema/jdbc"  ="http://www.springframework.org/schema/jee"  ="http://www.springframework.org/schema/jms"  ="http://www.springframework.org/schema/lang"  ="http://www.springframework.org/schema/mvc"  ="http://www.springframework.org/schema/oxm"  ="http://www.springframework.org/schema/task"  ="http://www.springframework.org/schema/tx"  ="http://www.springframework.org/schema/util"  xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd    http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd    http://www.springframework.org/schema/cache http://www.springframework.org/schema/cache/spring-cache-4.0.xsd    http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd    http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-4.0.xsd    http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-4.0.xsd    http://www.springframework.org/schema/jms http://www.springframework.org/schema/jms/spring-jms-4.0.xsd    http://www.springframework.org/schema/lang http://www.springframework.org/schema/lang/spring-lang-4.0.xsd    http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd    http://www.springframework.org/schema/oxm http://www.springframework.org/schema/oxm/spring-oxm-4.0.xsd    http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-4.0.xsd    http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd    http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd"    default-autowire="byName" default-lazy-init="true">  <context:component-scan base-package="cn.mylife"/>      <context:property-placeholder location="classpath:hibernate.properties"/>  <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">    <property name="driverClassName" value="${jdbc.driverClassName}"/>    <property name="url" value="${jdbc.url}"/>    <property name="username" value="${jdbc.username}"/>    <property name="password" value="${jdbc.password}"/>  </bean>  <!-- org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean -->  <bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">    <property name="dataSource" ref="dataSource" />    <property name="hibernateProperties">       <props>         <prop key="hibernate.dialect">${hibernate.dialect}</prop>         <prop key="hibernate.show_sql">${hibernate.show_sql}</prop>         <prop key="hibernate.cache.provider_class">${hibernate.cache.provider_class}</prop>         <prop key="hibernate.cache.use_query_cache">${hibernate.cache.use_query_cache}</prop>         <prop key="hibernate.jdbc.batch_size">${hibernate.jdbc.batch_size}</prop>         <prop key="hibernate.cache.use_second_level_cache">${hibernate.cache.use_second_level_cache}</prop>         <prop key="hibernate.hbm2ddl.auto">${hibernate.hbm2ddl.auto}</prop>         <!-- 这一个必须配置,否则会出现no session 的错误 -->        <!-- <prop key="hibernate.current_session_context_class">${hibernate.current_session_context_class}</prop> -->      </props>     </property>    <!-- 自动扫描制定位置下的实体进行映射 -->     <property name="packagesToScan" value="cn.mylife.entity"/>  </bean>    <bean id="transactionManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager">    <property name="sessionFactory" ref="sessionFactory" />  </bean>  <tx:annotation-driven transaction-manager="transactionManager"/></beans>

二,代码实现

1,创建entity实体类:cn.mylife.entity.User

package cn.mylife.entity;import java.io.Serializable;import javax.persistence.Column;import javax.persistence.Entity;import javax.persistence.GeneratedValue;import javax.persistence.GenerationType;import javax.persistence.Id;import javax.persistence.Table;/** * 用户User实体类 * @author Xiongyan * @date 2015年5月6日 上午10:24:24 * @version 0.0.1 */@SuppressWarnings("serial")@Entity@Table(name="tb_user")public class User implements Serializable {  @Id  @GeneratedValue(strategy=GenerationType.AUTO)  private Integer id;    @Column(name="user_name", length=50, nullable=false)  private String name;  public Integer getId() {    return id;  }  public void setId(Integer id) {    this.id = id;  }  public String getName() {    return name;  }  public void setName(String name) {    this.name = name;  }}

2,实现dao层基类:cn.mylife.dao.BaseDao<T>

package cn.mylife.dao;import java.io.Serializable;import java.util.List;import javax.annotation.Resource;import org.hibernate.SessionFactory;import org.springframework.stereotype.Repository;/** * dao层基类,实现增,删,改,查等常用功能。 * * @author Xiongyan * @date 2015年5月6日 下午5:24:08 * @version 0.0.1 * @param <T> */@Repositorypublic class BaseDao<T> {  @Resource  private SessionFactory sessionFactory;  /**   * 保存数据   *   * @author Xiongyan   * @date 2015年5月6日 下午5:24:54   * @throws   * @return void 返回类型   */  public void save(T t) {    sessionFactory.getCurrentSession().save(t);  }  /**   * 删除数据   *   * @author Xiongyan   * @date 2015年5月6日 下午5:26:41   * @throws   * @return void 返回类型   */  public void delete(Serializable id, Class<T> clazz) {    T t = get(id, clazz);    if (t != null)      sessionFactory.getCurrentSession().delete(t);    else      new RuntimeException("你要删除的数据不存在").printStackTrace();    ;  }  /**   * 更新数据   *   * @author Xiongyan   * @date 2015年5月6日 下午5:29:13   * @throws   * @return void 返回类型   */  public void update(T t) {    sessionFactory.getCurrentSession().update(t);  }  /**   * 根据ID查找数据   *   * @author Xiongyan   * @date 2015年5月6日 下午5:29:46   * @throws   * @return T 返回类型   */  @SuppressWarnings("unchecked")  public T get(Serializable id, Class<T> clazz) {    return (T) sessionFactory.getCurrentSession().get(clazz, id);  }  /**   * 查找所有数据   *   * @author Xiongyan   * @date 2015年5月6日 下午5:30:16   * @throws   * @return List<T> 返回类型   */  @SuppressWarnings("unchecked")  public List<T> getAll(Class<T> clazz) {    return sessionFactory.getCurrentSession().createQuery(clazz.toString()).list();  }}

3,service层代码的实现

package cn.mylife.service.user;import java.io.Serializable;import java.util.List;import javax.transaction.Transactional;/** * Service层基类,定义通用的增,删,改,查功能接口。 * * @author Xiongyan * @date 2015年5月6日 下午5:41:57 * @version 0.0.1 * @param <T> */public interface BaseService<T> {  /**   * 保存数据   *   * @author Xiongyan   * @date 2015年5月6日 下午5:42:42   * @throws   * @return void 返回类型   */  @Transactional  public void save(T t);  /**   * 删除数据   *   * @author Xiongyan   * @date 2015年5月6日 下午5:43:08   * @throws   * @return void 返回类型   */  @Transactional  public void delete(Serializable id);  /**   * 更新数据   *   * @author Xiongyan   * @date 2015年5月6日 下午5:43:19   * @throws   * @return void 返回类型   */  @Transactional  public void update(T t);  /**   * 根据ID获取数据   *   * @author Xiongyan   * @date 2015年5月6日 下午5:43:30   * @throws   * @return T 返回类型   */  public T get(Serializable id);  /**   * 获取所有的数据   *   * @author Xiongyan   * @date 2015年5月6日 下午5:43:52   * @throws   * @return List<T> 返回类型   */  public List<T> getAll();}

package cn.mylife.service.user.impl;import java.io.Serializable;import java.util.List;import javax.annotation.Resource;import cn.mylife.dao.BaseDao;import cn.mylife.service.user.BaseService;import java.lang.reflect.ParameterizedType;import java.lang.reflect.Type;/** * Service层基类实现类。该类是一个抽象类。 * @author Xiongyan * @date 2015年5月6日 下午6:59:53 * @version 0.0.1 * @param <T> */public abstract class BaseServiceImpl<T> implements BaseService<T> {  @Resource  private BaseDao<T> baseDao;  private Class<T> clazz;  @SuppressWarnings({ "unchecked", "rawtypes" })  public BaseServiceImpl() {    // 子类    Class cla = getClass();    // 通过子类获取到父类     // 泛型参数    Type type = cla.getGenericSuperclass();    if (type instanceof ParameterizedType) {      ParameterizedType pType = (ParameterizedType) type;      clazz = (Class<T>) pType.getActualTypeArguments()[0];    }  }  /*   * 保存数据   * @author Xiongyan   * @date 2015年5月6日 下午6:55:23   * (non-Javadoc)   * @throws   * @see cn.mylife.service.user.BaseService#save(java.lang.Object)   */  @Override  public void save(T t) {    baseDao.save(t);  }  /*   * 根据ID删除数据   * @author Xiongyan   * @date 2015年5月6日 下午6:56:01   * (non-Javadoc)   * @throws   * @see cn.mylife.service.user.BaseService#delete(java.io.Serializable)   */  @Override  public void delete(Serializable id) {    baseDao.delete(id, clazz);  }  /*   * 更新数据   * @author Xiongyan   * @date 2015年5月6日 下午6:56:51   * (non-Javadoc)   * @throws   * @see cn.mylife.service.user.BaseService#update(java.lang.Object)   */  @Override  public void update(T t) {    baseDao.update(t);  }  /*   * 根据ID获得数据   * @author Xiongyan   * @date 2015年5月6日 下午6:57:54   * (non-Javadoc)   * @throws   * @see cn.mylife.service.user.BaseService#get(java.io.Serializable)   */  @Override  public T get(Serializable id) {    return baseDao.get(id, clazz);  }  /*   * 获取所有的数据   * @author Xiongyan   * @date 2015年5月6日 下午6:58:34   * (non-Javadoc)   * @throws   * @see cn.mylife.service.user.BaseService#getAll()   */  @Override  public List<T> getAll() {    return baseDao.getAll(clazz);  }}

package cn.mylife.service.user;import cn.mylife.entity.User;public interface UserService extends BaseService<User>{  }

package cn.mylife.service.user.impl;import org.springframework.stereotype.Service;import cn.mylife.entity.User;import cn.mylife.service.user.UserService;@Servicepublic class UserServiceImpl extends BaseServiceImpl<User> implements UserService{  }

4,controller层代码的实现

package cn.mylife.controller;import org.springframework.context.annotation.Scope;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.servlet.ModelAndView;@Controller@RequestMapping("/user")@Scope("prototype")public class UserController {  @RequestMapping(value = "/save")  public ModelAndView saveUser() {    ModelAndView view = new ModelAndView("/jsps/testPage");    System.out.println("-- 访问成功 --");    return view;  }}

5,编写JSP页面

<%@ page language="java" contentType="text/html; charset=UTF-8"  pageEncoding="UTF-8"%><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>测试页面</title></head><body>这只是一个测试页面。</body></html>

6,编写Spring测试代码:cn.mylife.junit.SpringJunit4.java

package cn.mylife.junit;import javax.annotation.Resource;import org.junit.Test;import org.junit.runner.RunWith;import org.springframework.test.context.ContextConfiguration;import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;import cn.mylife.entity.User;import cn.mylife.service.user.UserService;@RunWith(SpringJUnit4ClassRunner.class)// 加载spring配置文件@ContextConfiguration(locations = { "classpath:applicationContext. })public class SpringJunit4 {  @Resource  private UserService userService;  @Test  public void testUser() throws Exception {    User user = new User();    user.setName("中国人名共和国");    userService.save(user);  }}

7,运行测试

我们的测试代码运行成功,下面我们看一下数据库

8,接下来我们测试一下Spring MVC。在浏览器中输入:http://localhost/mylife/user/save.do

 

至此,咱们的开发框架搭建完成,本文还有很多不足和需要完善的地方,望指出,谢谢!