spring配置文件详解以及beans标签

╰+哭是因爲堅強的太久メ 2022-06-01 06:11 185阅读 0赞

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        <beans:beans xmlns="http://www.springframework.org/schema/security"  
          xmlns:beans="http://www.springframework.org/schema/beans"  
          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/security    
          http://www.springframework.org/schema/security/spring-security-3.0.xsd">

第一行的意思就是你这个文件的默认schema为security，所以你的beans定义就需要加上前缀beans

一般的定义文件默认都是beans；

下面是spring配置文件的详解：

转自：http://blog.csdn.net/zzjjiandan/article/details/22922847

Spring配置文件是用于指导Spring工厂进行Bean生产、依赖关系注入（装配）及Bean实例分发的"图纸"。Java EE程序员必须学会并灵活应用这份"图纸"准确地表达自己的"生产意图"。Spring配置文件是一个或多个标准的XML文档，applicationContext.xml是Spring的默认配置文件，当容器启动时找不到指定的配置文档时，将会尝试加载这个默认的配置文件。

下面列举的是一份比较完整的配置文件模板，文档中各XML标签节点的基本用途也给出了详细的解释，这些XML标签节点在后续的知识点中均会用到，熟练掌握了这些XML节点及属性的用途后，为我们动手编写配置文件打下坚实的基础。

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下面，就上面的配置列举一个示例：

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         <?xml version="1.0" encoding="UTF-8"?>    
        <beans xmlns="http://www.springframework.org/schema/beans"    
            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-2.5.xsd">    
                
            <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">    
                    
                <property name="driverClass">    
                    <value>com.mysql.jdbc.Driver</value>    
                </property>    
                    
                <property name="jdbcUrl">    
                    <value>jdbc:mysql://localhost:3306/eportal?useUnicode=    
                        true&characterEncoding=gbk</value>    
                </property>    
                    
                <property name="user">    
                    <value>root</value>    
                </property>    
                    
                <property name="password">    
                    <value>root</value>    
                </property>    
                    
                <property name="maxPoolSize">    
                    <value>20</value>    
                </property>    
                    
                <property name="minPoolSize">    
                    <value>2</value>    
                </property>    
                    
                <property name="initialPoolSize">    
                    <value>2</value>    
                </property>    
                    
                <property name="maxIdleTime">    
                    <value>20</value>    
                </property>    
            </bean>    
                
            <bean id="sessionFactory"    
                class="org.springframework.orm.    
        hibernate3.LocalSessionFactoryBean">    
                    
                <property name="dataSource" ref="dataSource" />    
                    
                <property name="mappingResources">    
                    <list>    
                        <value>com/eportal/ORM/News.hbm.xml</value>    
                        <value>com/eportal/ORM/Category.hbm.xml</value>    
                        <value>com/eportal/ORM/Memberlevel.hbm.xml</value>    
                        <value>com/eportal/ORM/Cart.hbm.xml</value>    
                        <value>com/eportal/ORM/Traffic.hbm.xml</value>    
                        <value>com/eportal/ORM/Newsrule.hbm.xml</value>    
                        <value>com/eportal/ORM/Merchandise.hbm.xml</value>    
                        <value>com/eportal/ORM/Admin.hbm.xml</value>    
                        <value>com/eportal/ORM/Orders.hbm.xml</value>    
                        <value>com/eportal/ORM/Cartselectedmer.hbm.xml</value>    
                        <value>com/eportal/ORM/Newscolumns.hbm.xml</value>    
                        <value>com/eportal/ORM/Member.hbm.xml</value>    
                    </list>    
                </property>    
                    
                <property name="hibernateProperties">    
                    <props>    
                            
                        <prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>    
                            
                        <prop key="show_sql">true</prop>    
                            
                        <prop key="hibernate.jdbc.batch_size">50</prop>    
                        <prop key="show_sql">50</prop>    
                    </props>    
                </property>    
            </bean>    
                
            <bean id="transactionManager"    
                class="org.springframework.orm.hibernate3.HibernateTransactionManager">    
                    
                <property name="sessionFactory" ref="sessionFactory" />    
            </bean>    
                
            <bean id="transactionInterceptor"    
                class="org.springframework.transaction.interceptor.TransactionInterceptor">    
                    
                <property name="transactionManager" ref="transactionManager" />    
                    
                <property name="transactionAttributes">    
                    <props>    
                            
                        <prop key="browse*">PROPAGATION_REQUIRED,readOnly</prop>    
                        <prop key="list*">PROPAGATION_REQUIRED,readOnly</prop>    
                        <prop key="load*">PROPAGATION_REQUIRED,readOnly</prop>    
                        <prop key="get*">PROPAGATION_REQUIRED,readOnly</prop>    
                        <prop key="is*">PROPAGATION_REQUIRED,readOnly</prop>    
                            
                        <prop key="*">PROPAGATION_REQUIRED</prop>    
                    </props>    
                </property>    
            </bean>    
                
            <bean    
                class="org.springframework.aop.framework.autoproxy.      
        BeanNameAutoProxyCreator">    
                    
                <property name="beanNames">    
                    <list>    
                        <value>adminService</value>    
                        <value>columnsService</value>    
                        <value>newsService</value>    
                        <value>crawlService</value>    
                        <value>memberLevelService</value>    
                        <value>memberService</value>    
                        <value>categoryService</value>    
                        <value>merService</value>    
                        <value>cartService</value>    
                        <value>ordersService</value>    
                        <value>trafficService</value>    
                    </list>    
                </property>    
                    
                <property name="proxyTargetClass">    
                    <value>true</value>    
                </property>    
                    
                <property name="interceptorNames">    
                    <list>    
                        <value>transactionInterceptor</value>    
                    </list>    
                </property>    
            </bean>    
                
            <bean id="dao" class="com.eportal.DAO.BaseDAOImpl">    
                <property name="sessionFactory" ref="sessionFactory" />    
            </bean>    
                
            <bean id="adminService" class="com.eportal.service.AdminServiceImpl">    
                <property name="dao" ref="dao" />    
            </bean>    
                
            <bean id="columnsService" class="com.eportal.service.ColumnsServiceImpl">    
                <property name="dao" ref="dao" />    
            </bean>    
                
                
            <bean id="ordersService" class="com.eportal.service.OrderServiceImpl">    
                <property name="dao" ref="dao" />    
            </bean>    
                
            <bean id="trafficService" class="com.eportal.service.TrafficServiceImpl">    
                <property name="dao" ref="dao" />    
            </bean>    
                
            <bean id="adminAction" class="com.eportal.struts.action.    
        AdminAction"    
                scope="prototype">    
                <property name="service" ref="adminService" />    
            </bean>    
                
            <bean id="columnsAction" class="com.eportal.struts.action.    
        ColumnsAction"    
                scope="prototype">    
                <property name="service" ref="columnsService" />    
            </bean>    
                
            <bean id="newsAction" class="com.eportal.struts.action.    
        NewsAction"    
                scope="prototype">    
                <property name="service" ref="newsService" />    
                <property name="columnsService" ref="columnsService" />    
            </bean>    
                
            <bean id="crawlAction" class="com.eportal.struts.action.    
        CrawlAction"    
                scope="prototype">    
                <property name="service" ref="crawlService" />    
                <property name="columnsService" ref="columnsService" />    
            </bean>    
                
        </beans>

[Center]: https://img-blog.csdn.net/20160128100240223?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center
[Center 1]: https://img-blog.csdn.net/20160128100245195?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center
[Center 2]: https://img-blog.csdn.net/20160128100249336?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center
[Center 3]: https://img-blog.csdn.net/20160128100253539?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center
[Center 4]: /images/20220601/cdf0ae9532b649f888b615e39677694d.png