一,hibernate的环境配置
1,加jar包:
antlr-2.7.6.jar
commons-collections-3.1.jar
dom4j-1.6.1.jar
hibernate-jpa-2.0-api-1.0.0.Final.jar
hibernate3.jar
javassist-3.12.0.GA.jar
jta-1.1.jar
log4j-1.2.15.jar
mysql-connector-java-5.1.7-bin.jar
slf4j-api-1.6.1.jar
slf4j-log4j12-1.6.1.jar
2,配置文件:
(1)在src文件夹下拷入配置文件hibernate.cfg.xml:
<pre name="code" class="html"><?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory >
<!--1, 数据库连接信息 -->
<!--方言-->
<property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
<property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="hibernate.connection.url">jdbc:mysql://localhost:3306/student</property>
<property name="hibernate.connection.username">root</property>
<property name="hibernate.connection.password">123</property>
<!--2, 其他配置信息 -->
<!-- ======显示sql语句======= -->
<property name="show_sql">true</property>
<!-- ====== 自动建表 =======
create先删除在创建
update存在就更新不存在就插入
create-drop 初始化时创建表
validate 验证表结构是否一致,如果不一致,就抛异常-->
<property name="hbm2ddl.auto">update</property>
<!--3, 导入映射文件 -->
<mapping resource="pojo/student.hbm.xml"/>
</session-factory>
</hibernate-configuration>
(2)在src文件夹下拷入配置文件log4_1.properties:
<span style="font-size:18px;">### direct log messages to stdout ###
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target=System.out
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d{ABSOLUTE} %5p %c{1}:%L - %m%n
### direct messages to file hibernate.log ###
#log4j.appender.file=org.apache.log4j.FileAppender
#log4j.appender.file.File=hibernate.log
#log4j.appender.file.layout=org.apache.log4j.PatternLayout
#log4j.appender.file.layout.ConversionPattern=%d{ABSOLUTE} %5p %c{1}:%L - %m%n
### set log levels - for more verbose logging change 'info' to 'debug' ###
log4j.rootLogger=warn, stdout
#log4j.logger.org.hibernate=info
log4j.logger.org.hibernate=debug
### log HQL query parser activity
#log4j.logger.org.hibernate.hql.ast.AST=debug
### log just the SQL
#log4j.logger.org.hibernate.SQL=debug
### log JDBC bind parameters ###
log4j.logger.org.hibernate.type=info
#log4j.logger.org.hibernate.type=debug
### log schema export/update ###
log4j.logger.org.hibernate.tool.hbm2ddl=debug
### log HQL parse trees
#log4j.logger.org.hibernate.hql=debug
### log cache activity ###
#log4j.logger.org.hibernate.cache=debug
### log transaction activity
#log4j.logger.org.hibernate.transaction=debug
### log JDBC resource acquisition
#log4j.logger.org.hibernate.jdbc=debug
### enable the following line if you want to track down connection ###
### leakages when using DriverManagerConnectionProvider ###
#log4j.logger.org.hibernate.connection.DriverManagerConnectionProvider=trace
</span>
二,spring的环境配置
<span style="font-size:18px;"><span style="font-size:24px;">1,加jar包:
</span></span><pre name="code" class="html"><pre name="code" class="html"><span style="font-size:18px;">aspectjtools.jar
c3p0-0.9.1.jar
com.springsource.org.aopalliance-1.0.0.jar
com.springsource.org.apache.commons.logging-1.1.1.jar
log4j-1.2.14.jar
spring-aop-3.2.6.RELEASE.jar
spring-aspects-3.2.6.RELEASE.jar
spring-beans-3.2.6.RELEASE.jar
spring-build-src-3.2.6.RELEASE.jar
spring-context-3.2.6.RELEASE.jar
spring-context-support-3.2.6.RELEASE.jar
spring-core-3.2.6.RELEASE.jar
spring-expression-3.2.6.RELEASE.jar</span>
2,在src下新建applicationContext.xml配置文件:
(1)手动配置方式:
<span style="font-size:18px;"><?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"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd">
<bean id="HelloWord" class="pojo.HelloWord">
<property name="message" value="Helloword panpan2 "></property>
</bean>
<!-- 配置UserDAOImpl的实例 -->
<bean id="userDao" class="com.shw.dao.UserDAOImpl"></bean>
<!-- 配置UserBizImpl的实例 -->
<bean id="userBiz" class="com.shw.biz.UserBizImpl">
<!-- 依赖注入数据访问层组件
property是<bean>标记的子标记,用于调用Bean实例中相关set方法完成属性的赋值
ref属性表示对Bean工厂中某个Bean实例的引用
-->
<property name="userDao" ref="userDao"></property>
</bean>
</beans> </span>
<pre name="code" class="html">(2)注解配置方式:
<pre name="code" class="html"><?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"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd">
<!-- 自动扫描包 -->
<context:component-scan base-package="包名"></context:component-scan>
</beans>
三,hibernate+spring整合
<span style="font-size:18px;"><span style="font-size:24px;"></span></span><pre name="code" class="html">1,整合目的:
(1)管理SessionFactory实例(只需一个)
(2)声明式事物管理
2,lib下的jar包:
<span style="font-size:18px;">antlr-2.7.6.jar
aspectjrt.jar
aspectjweaver.jar
c3p0-0.9.1.jar
cglib-nodep-2.1_3.jar
commons-codec.jar
commons-collections-3.1.jar
commons-fileupload-1.2.1.jar
commons-io-1.3.2.jar
commons-logging.jar
dom4j-1.6.1.jar
freemarker-2.3.15.jar
hibernate-jpa-2.0-api-1.0.0.Final.jar
hibernate3.jar
javassist-3.12.0.GA.jar
jta-1.1.jar
log4j-1.2.15.jar
mysql-connector-java-5.1.5-bin.jar
ognl-2.7.3.jar
slf4j-api-1.6.1.jar
slf4j-log4j12-1.6.1.jar
spring.jar
xwork-core-2.1.6.jar</span>
<pre name="code" class="html">3,在applicationContext.xml中修改配置(注释hibernate中的数据连接,在<span style="font-size:18px;"></span><pre name="code" class="html"><span style="font-size:18px;"><span style="font-size:24px;"></span></span><pre name="code" class="html"><pre name="code" class="html">applicationContext.xml中添加数据库连接):
<pre name="code" class="html"><?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"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd">
<!-- 自动扫描包与装配bean-->
<context:component-scan base-package="cn.panguangyou"></context:component-scan>
<!-- 导入外部的properties文件 -->
<context:property-placeholder location="classpath:jdbc.properties"/>
<!-- 配置SessionFactory -->
<bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<!-- 指定hibernate的配置文件的路径 -->
<property name="configLocation" value="classpath:hibernate.cfg.xml"></property>
<!-- 配置c3p0数据库连接池 -->
<property name="dataSource">
<bean class="com.mchange.v2.c3p0.ComboPooledDataSource">
<!-- 数据连接信息 -->
<property name="jdbcUrl" value="${jdbcUrl}"></property>
<property name="driverClass" value="${driverClass}"></property>
<property name="user" value="${user}"></property>
<property name="password" value="${password}"></property>
<!-- 其他配置 -->
<!--初始化时获取三个连接,取值应在minPoolSize与maxPoolSize之间。Default: 3 -->
<property name="initialPoolSize" value="3"></property>
<!--连接池中保留的最小连接数。Default: 3 -->
<property name="minPoolSize" value="3"></property>
<!--连接池中保留的最大连接数。Default: 15 -->
<property name="maxPoolSize" value="5"></property>
<!--当连接池中的连接耗尽的时候c3p0一次同时获取的连接数。Default: 3 -->
<property name="acquireIncrement" value="3"></property>
<!-- 控制数据源内加载的PreparedStatements数量。如果maxStatements与maxStatementsPerConnection均为0,则缓存被关闭。Default: 0 -->
<property name="maxStatements" value="8"></property>
<!--maxStatementsPerConnection定义了连接池内单个连接所拥有的最大缓存statements数。Default: 0 -->
<property name="maxStatementsPerConnection" value="5"></property>
<!--最大空闲时间,1800秒内未使用则连接被丢弃。若为0则永不丢弃。Default: 0 -->
<property name="maxIdleTime" value="1800"></property>
</bean>
</property>
</bean>
</beans>
并添加一个jdbc.properties文件:
jdbcUrl = jdbc:mysql:///test
driverClass = com.mysql.jdbc.Driver
user = root
password = 123
4,建一个cn.panguangyou.domian包,并建一个实体类User:
<span style="font-size:18px;">package cn.panguangyou.domain;
public class User {
private Long id;
private String name;
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}</span>
5,配置User.hbm.xml文件:
<span style="font-size:18px;"><?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping package="cn.panguangyou.domain">
<class name="User" table="panguangyou_user">
<id name="id">
<generator class="native"/>
</id>
<property name="name" column="姓名" type="string" length="20"/>
</class>
</hibernate-mapping></span>
注意:要将User.hbm.xml的映射加到hibernate.cfg.xml中。
6,在包cn.panguangyou.Test下建一个测试类test:
</pre><span style="font-size:18px;">package cn.panguangyou.Test;</span><pre name="code" class="html"><span style="font-size:18px;">
import org.hibernate.SessionFactory;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
@SuppressWarnings("unused")
public class test {
private ApplicationContext ac = new ClassPathXmlApplicationContext("applicationContext.xml");
//测试SessionFactory
@Test
public void testSessionFactory() throws Exception {
SessionFactory sessionFactory=(SessionFactory) ac.getBean("sessionFactory");
System.out.println(sessionFactory);
}
}
</span>
至此,hibernate与spring就整合好了。
个人认为使用框架并不是很难,关键要理解其思想,这对于我们提高编程水平很有帮助。不过,如果用都不会,谈思想就变成纸上谈兵了!!!先技术,再思想。实践出真知。
1、基本概念
1.1、Spring
Spring是一个开源框架,Spring是于2003 年兴起的一个轻量级的Java 开发框架,由Rod Johnson 在其著作Expert One-On-One J2EE Development and Design中阐述的部分理念和原型衍生而来。它是为了解决企业应用开发的复杂性而创建的。Spring使用基本的JavaBean来完成以前只可能由EJB完成的事情。然而,Spring的用途不仅限于服务器端的开发。从简单性、可测试性和松耦合的角度而言,任何Java应用都可以从Spring中受益。 简单来说,Spring是一个轻量级的控制反转(IoC)和面向切面(AOP)的容器框架。
1.2、SpringMVC
Spring MVC属于SpringFrameWork的后续产品,已经融合在Spring Web Flow里面。Spring MVC 分离了控制器、模型对象、分派器以及处理程序对象的角色,这种分离让它们更容易进行定制。
2.环境搭建详解
2.1引入相应的包
springMVC和spring包的结构发生了很大的变化,各个包都分开了,灵活,要求使用者更加深入的学习使用,当我们引入包的时候,以少为原则,少的话可以根据报错来找到相应的包,如果过多的话,包会报错异常的混乱,不容易分辨;sprinMVC和spring本身就是一家的,所以引入的包来说基本上和spring需要的架构包是一致的.
2.2 新建注解xml文件 :springAnnotation-servlet.xml
- <span style="font-size:18px;"><span style="font-size:18px;"><span style="font-size:18px;"><?xml version="1.0" encoding="UTF-8"?>
- <beans xmlns="http://www.springframework.org/schema/beans"
- xmlns:context="http://www.springframework.org/schema/context"
- xmlns:p="http://www.springframework.org/schema/p"
- xmlns:mvc="http://www.springframework.org/schema/mvc"
- xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
- xsi:schemaLocation="http://www.springframework.org/schema/beans
- http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
- http://www.springframework.org/schema/context
- http://www.springframework.org/schema/context/spring-context.xsd
- http://www.springframework.org/schema/mvc
- http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">
- <!-- 注解扫描包 -->
- <context:component-scan base-package="com.tgb.web.controller.annotation" />
- <!-- 开启注解 -->
- <mvc:annotation-driven/>
- <!-- <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" />
- <bean class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping"></bean> -->
- <!-- 静态资源访问 -->
- <mvc:resources location="/img/" mapping="/img/**"/>
- <mvc:resources location="/js/" mapping="/js/**"/>
- <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
- <property name="prefix" value="/"></property>
- <property name="suffix" value=".jsp"></property>
- </bean>
- <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
- <property name="defaultEncoding" value="utf-8" />
- <property name="maxUploadSize" value="10485760000" />
- <property name="maxInMemorySize" value="40960" />
- </bean>
- </beans> </span></span></span>
2.3 建springxml文件 springAnnotation-core.xml
通过bean注入要调用的接口实现类
- <span style="font-size:18px;"><span style="font-size:18px;"><span style="font-size:18px;"><beans>
- <bean id="springManager" class="com.tgb.web.controller.annotation.SpringManager"></bean>
- </beans></span></span></span>
2.3.1 ISpring接口
- <span style="font-size:18px;"><span style="font-size:18px;"><span style="font-size:18px;">public interface ISpring {
- public String get();
- }</span></span></span>
2.3.2 ISpring实现类
- <span style="font-size:18px;"><span style="font-size:18px;"><span style="font-size:18px;">public class SpringManager implements ISpring {
- @Override
- public String get() {
- //判定是否调用了
- System.out.println("------I am springManager----");
- return "I am getMethod";
- }
- }</span></span></span>
2.3.3 SpringController类
- <span style="font-size:18px;"><span style="font-size:18px;"><span style="font-size:18px;">public class SpringController {
- //这样代替了再xml中配置属性的过程
- @Resource(name="springManager")
- private ISpring springManager;//注入springManager
- @RequestMapping("/spring/get")
- public String get(){
- System.out.println(springManager.get());
- return "/success";
- }
- }</span></span></span>
一个项目的全局配置点在web.xml,一个项目需要使用了多少框架,通过xml可以查看.
- <span style="font-size:18px;"><span style="font-size:18px;"><span style="font-size:18px;"><?xml version="1.0" encoding="UTF-8"?>
- <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
- <display-name>springMVC8</display-name>
- <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>
- <context-param>
- <param-name>contextConfigLocation</param-name>
- <param-value>classpath*:config/springAnnotation-core.xml</param-value>
- <!-- <param-value>classpath*:config/springAnnotation-servlet.xml</param-value> -->
- </context-param>
- <!-- 配置spring启动listener入口 ,实例化spring容器-->
- <listener>
- <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
- </listener>
- <!-- 配置springMVC启动DispatcherServlete入口 ,用来指定spring的主配置文件-->
- <servlet>
- <servlet-name>springMVC</servlet-name>
- <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
- <init-param>
- <param-name>contextConfigLocation</param-name>
- <!-- <param-value>classpath*:config/springAnnotation-core.xml</param-value> -->
- <param-value>classpath*:config/springAnnotation-servlet.xml</param-value>
- </init-param>
- <load-on-startup>1</load-on-startup>
- </servlet>
- <filter>
- <filter-name>encodingFilter</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>
- <init-param>
- <param-name>forceEncoding</param-name>
- <param-value>true</param-value>
- </init-param>
- </filter>
- <!-- encoding filter for jsp page -->
- <filter-mapping>
- <filter-name>encodingFilter</filter-name>
- <url-pattern>/*</url-pattern>
- </filter-mapping>
- <servlet-mapping>
- <servlet-name>springMVC</servlet-name>
- <url-pattern>/</url-pattern>
- </servlet-mapping>
- </web-app></span></span></span>
注解:springMVC是通过dispastservlet来监听的,spring使用linstener监听的,他们之间的启动顺序,web容器有又一个即,
第一:context-param
第二:Listerer
第三:Filter
第四:servlet
这样的启动顺序是有一定联系的