注意.使用Spring自带的事,在抛RuntimeException时会自动回演,代码抛其他异常不会回滚。
import org.springframework.jdbc.datasource.DataSourceTransactionManager;
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.transaction.Transaction5tatus:
import org.springfranework.transaction.support.DefaultTransactionDefinition;
import arg-springfranework.transaction.support.TransactionCallback;
import org.springfranework.transaction.support.TransactionTemplate;
PlatformTransactionManager platformTransactionManager = new DataSourceTransactionManager (template.getDataSource());
DefaultTransactionDefinition transactionDefinition = new DefaultTransactionDefinition();
trangactionDefinition.setTimeout (100);
TransactionTemplate transactionTemplate = new TransactionTemplate (platformTransactionManager,trangactionDefinition);
Boolean isSuccess = transactionTemplate.execute(new TransactionCallback<Boolean>()(
public Boolean doInTransaction(TransactionStatus status) {
// TODO Auto-generated method stub try[
// TODO Auto-generated catch block e.printStackTrace():
logger.error(String.format(”境内非居民代发工资申报:insertBatchDfgzBatDataVOList,异常原因:(V#]”,e.getMessage()));
return Boolean.TRUE;
}
));
声明性事务
使用 TransactionProxyFactoryBean
<alias name="transactionManager" alias="txManager"/>
<bean id="baseTransactionProxy"
class="org.springframework.transaction.interceptor.TrangactionProxyFactoryBean” abstract="true">
<property name="transactionManager" ref="txManager"/>
<property name="transactionAttributeSource">
<bean
class="org.snringfrsmework.transaction.interceptor.NameMatchTransactionAttributeSource">
<property name="properties">
<props>
<!-- -->
<prop key="insert*">PROPAGATION_REQUIRED</prop>
<prop key="create*">PROPAGATION_REQUIRED</prop>
<prop key="update*">PROPAGATION_REQUIRED</prop>
<prop key="delete*">PROPAGATION REQUIRED</prop>
<prop key="save*">PROPAGATION_REQUIRED</prop>
<prop key="remove*">PROPAGATION_REQUIRED</prop>
<prop key-"invoke*">PROPAGATION_REQUIRED</prop>
<prop key="return*">PROPAGATION_REQUIRED</prop>
<prop key="adjust*">PROPAGATION_REQUIRED</prop>
<prop key="check*">PROPAGATION_REQUIRED</prop>
<prop key="accept*">PROPAGATION_REQUIRED</prop>
<prop key="commit*">PROPAGATION_REQUIRED</prop>
<prop key="route*">PROPAGATION_REQUIRED</prop>
<prop key="reject*">PROPAGATION_REQUIRED</prop>
<prop key="cancel*">PROPAGATION_REQUIRED</prop>
<prop key="end*">PROPAGATION_REQUIRED</prop>
<prop key="retract*">PROPAGATION_REQUIRED</prop>
<prop key="start*">PROPAGATION_REQUIRED</prop>
<prop key="stop*">PROPAGATICN_REQUIRED</prop>
<prop key="wake*">PROPAGAIICN_REQUIRED</prop>
<prop key="send*">PROPAGATICN_REQUIRED</prop>
<prop key="lock*">PROPAGATICN_BEQUIRED</prop>
<prop key="unlock*">PROPAGATICN_REQUIRED</prop>
<prop key="Handle*">PROPAGATICN_REQUIRED</prop>
<prop key="txnew*">PROPAGATION_REQUIRES_NEW</prop>
<prop key="*">PROPAGATION_REQUIRED,readOnly</prop>
<!--
<prop key="*">PROPAGATION_NEVER</prop>
-->
</props>
</property>
</bean>
</property>
</bean>
然后 使用 parent 属性继承 TransactionProxyFactoryBean 模板
<!--by zb增加事务代理-->
<bean id="mpsSwfGpiCommonBS" parent="baseTransactionProxy">
<property nane="target">
<bean class="com.hylandtec.mps.gpi.bs.imp1.GpiCommonBSImpl">
<property name="basBS" ref="mpsBasBS"/>
<property name="msgTransformer" ref="mpsTrfMessageTransformer" />
<property nane="basDAO" ret-"mpsBaseDAO/>
<property name="magBS" ref="mpsMsgBS"/>
<property name="eimBS" ref="mpsEimGpiBS" />
</bean>
</property>
</bean>
使用 BeanNameAutoProxyFactoryBean
根据 bean name自动生成事务代理的方式,直接利用spring的AOP框架配置事务代理的方式
<bean id="transactionInterceptor" class="org.springframewark.cransaction.interceptor.TransactionInterceptor">
<property name-"transactionManager" ref="txManager"/>
<property name="transactionAttributeSource">
<bean
class="org.springframework.transaction.interceptor.NameMatchTransactionAttributeSource">
<property name-"properties">
<props>
<---->
<prop key="insert*">PROPAGATION_REQUIRED</prop>
<prop key="create*">PROPAGATION_REQUIRED</prop>
<prop key="update*">PROPAGATION_REQUIRED</prop>
<prop key="delete*">PROPAGATION REQUIRED</prop>
<prop key="save*">PROPAGATION_REQUIRED</prop>
<prop key="remove*">PROPAGATION_REQUIRED</prop>
<prop key-"invoke*">PROPAGATION_REQUIRED</prop>
<prop key="return*">PROPAGATION_REQUIRED</prop>
<prop key="adjust*">PROPAGATION_REQUIRED</prop>
<prop key="check*">PROPAGATION_REQUIRED</prop>
<prop key="accept*">PROPAGATION_REQUIRED</prop>
<prop key="commit*">PROPAGATION_REQUIRED</prop>
<prop key="route*">PROPAGATION_REQUIRED</prop>
<prop key="reject*">PROPAGATION_REQUIRED</prop>
<prop key="cancel*">PROPAGATION_REQUIRED</prop>
<prop key="end*">PROPAGATION_REQUIRED</prop>
<prop key="retract*">PROPAGATION_REQUIRED</prop>
<prop key="start*">PROPAGATION_REQUIRED</prop>
<prop key="stop*">PROPAGATICN_REQUIRED</prop>
<prop key="wake*">PROPAGAIICN_REQUIRED</prop>
<prop key="send*">PROPAGATICN_REQUIRED</prop>
<prop key="lock*">PROPAGATICN_REQUIRED</prop>
<prop key="unlock*">PROPAGATICN_REQUIRED</prop>
<prop key="Handle*">PROPAGATICN_REQUIRED</prop>
<prop key="txnew*">PROPAGATION_REQUIRES_NEW</prop>
<prop key="*">PROPAGATION_REQUIRED,readOnly</prop>
<!--
<prop key="*">PROPAGATION_NEVER</prop>
-->
</props>
</property>
</bean>
</property>
</bean>
<bean class-"org.springframework.aop.framework.autoproxy.BeanNaneAutoProxyCreator">
<!--使用cghib代理-->
<property nane="proxyTargetClass" value="true"></property>
<!--指定对满足bean name 的bean自动生成代理>
<property name="beanNames">
<list>
<value>persondao</value>
</list>
</property>
<!-- BeanNaneAutoProxyCreator定义所需要的事务拦截器-->
<property nane="interceptorNames">
<list>
<value>
transactionInterceptor
</value>
</list>
</property>
</bean>
<bean id="persondao" class="lee.PersonDaoHibernate">
<property nane="sessionFactory">
<ref local="sessionfactory"/>
</property>
</bean>
使用 DefaultAdvinorAutoProxyFactoryBean
也是直接 利用 spring 的 AOP 框架.,不过配置方式的可读性不如 BeanNaneAutoProxyFactoryBean
Spring常用接口
ApplicationContextAware
实现 ApplicationContextAware 可获取 ApplicationContext上下文
package util;
import org.anringfranework.beans.BeanaException;
import aig.springlramcwork-context.ApplicationContext;
import grg anringtranework. context.ApplicationContextAware;
public clasc ContextUtil implements ApplicationContextAware {
public static ApplicationContext context;
}
application.xml 中注入 ContextUtil
<bean class="util.ContextUtil"></bean>
也可以在 ApplicationContextAware 中执行一些方法 com.hylandtec.bup.base.common.cache.service.impl.CacheServiceImpl
public class CacheServiceImpl implemente ICacheService,ApplicationContextAware {
public void setApplicationContext(ApplicationContext context) throws BeansException {
this.context = context;
this.validateCache();
this.preloadCaches();
}
}
加载 properties 文件
spring 框架中, spring.framework.beans.factory.config.PropertyPlaceholderConfigurer 类可以将 properties (key/ value)文件中, 动态设定的值绑定到 XML 配置的 bean 属性中。 config.properties
Spring 的 PropertyPlaceholderConfigurer 接口专门用于处理 properties 文件解析
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.beans.factory.config.PropertyPlaceholderConfigurer;
/**
** 对配置文件做加密处理
**/
public class EncryptePropertyPlaceholderConfigurer extends PropertyPlaceholderConfigurer (
private String identifier ="password”;
private static Log log = LogFactory.getlog(EncryptePropertyPlaceholderConfigurer.class);
protected String resolvePlaceholder(String placeholder, Properties props){
String value = super.resolvePlaceholder(placeholder, props);
if (placeholder.endsWith(identifier)) {
// 解密
}
return value;
}
public String getIdentifier() [
return identifier;
}
public void setIdentifier(String identifier)[
this.identifier = identifier;
}
}
配置完后,${jdbc.url] 会被 properties 中对应的值所替代
动态加载 XM 解析为 Bean
package com.longtop.intelliweb.sample.factory;
import org.apache.commons.logging.Log;import org.apache.commons.logging.LogFactory;
import org.springframework.beans,factory.access.BeanFactorylocator;
import org.springframework.beans.factory.access.BeanFactoryReference
import org.springframework.beans.factory.access.SingletonBeanFactorylocator;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ConfigurableApplicationContext;
public class SpringBeanFactory {
private static log log = logFactory.getlog(SpringBeanFactory.class);
private static ApplicationContext appContext = null;
private static String beanRefFactoryGroupId = "defaultGroupBeanId";
public static String beanRefFactoryFile = "/config/fims/beanRefFactory.xml";
static {
try {
BeanFactorylocator locator = SingletonBeanFactorylocator.getInatance(beanRefFactoryFile);
BeanFactoryReference bfr = locator.useBeanFactory(beanRefFactoryGroupId);
appContext = (ApplicationContext) bfr.getFactory();
} catch (Throwable e){
e.printStackTrace():
log.error("",e);
}
}
// 根据beanId取得实例
/** @param beanId
** @return object
**/
public static Object getBean(String beanId){return appContext.getBean(beanId)};
public static ApplicationContext getAContext() return appContext;
}
属性注入和 InitializingBean
往 SchedulerFactoryBean 电注入属性 configLocation
<bean id="scheduler" class="org.springframework.scheduling.quartz.SchedulerFactoryBean">
<property name="configLocation">
<value>classpath:/quartz.properties</value>
</property>
<property name="dataSource" ref="dataSource">
</property>
<property name="triggers">
<list>
<ref bean="myIrigger"/>
</list>
</property>
</bean>
SchedulerFactoryBean 类实现了 Spring 的 InitializingBean 接口,接口中有一个 afterPropertiesSet(方法,可以在属性注入后对属性进行解折或者处理 public interface InitializingBean {
}
Spring 属性编辑工具类
org.springframework.core.io.support.PropertiesLoaderUtils#fillProperties fillProperties(Properties props, Resource resource)a 将 resource 下的 K-V 键值对放入 props org.springframework.util.CollectionUtilsfmergePropertiesIntoMap mergePropertiesIntoMap(Properties props, Map map) :将 props 放入 map
FactoryBean
ApplicationListener
public class ConfigManagerImpl implements ConfigManager, ApplicationListener {
public void onApplicationEvent (ApplicationEvent event){
if (event instanceof ContextRefreshedEvent) {
try {
checkReload();
}catch (Throwable e) {
logger.error(e.getMessage(), e);
}
}
}
}
Spring 加载时默认会触发一达
Lifecycle 与 DefaultLifecycleProcessor
org.springframework.context.support.DefaultLifecycleProcessor实现了 Iifecycle 接口的 bean,启动时会调用 start() 方法,停止时会调用 stop()方法
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