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1. re: 精武馆——在线棋牌游戏平台[未登录]
好
--五味子
2. re: 精武馆——在线棋牌游戏平台[未登录]
很好玩
--五味子
3. re: [原]一个例子理解AccessController.doPrivileged()
谢谢分享,我第一遍没看懂,后来去其他地方看了有关权限检查的的文章以后才看懂,建议解释一下调用栈,和权限检查(取调用栈中权限的交集)。
--Flexin
4. re: [原]MIR3G二次加解密反汇编分析(四)——还原
@Mir3
好久没有研究这个...
--phrancol
5. re: [原]MIR3G二次加解密反汇编分析(四)——还原
ll4bb903 这其实是srand 函数
--Mir3
Developing Equinox/Spring-osgi/Spring Framework Web Application Part 2 - 使用Spring-OSGI
一、域模型
先从最底层开始,把域模型建立起来,创建一个Plug-in project -
org.phrancol.osgi.jpetstore.domain,不创建Activator,创建一个package - org.phrancol.osgi.jpetstore.domain,将src\org\springframework\samples\jpetstore\domain 里面的java文件copy进去(重构一下package的名字,java文件里的package自动就变了,不用改每个文件),在MANIFEST.MF里面把依赖包导入一下并export这个package
domain里面的logic,引用了dao,dao也引用了domain,会导致一个错误,于是将logic做为一个独立的bundle,就称为域逻辑吧
二、域逻辑
创建一个Plug-in project - org.phrancol.osgi.jpetstore.domain.logic,不创建Activator,创建一个同名package,将jpetstore\src\org\springframework\samples\jpetstore\domain\logic里面的java文件copy进去,在MANIFEST.MF里面把依赖包导入
三、DAO
该做dao部分了,创建一个 Plug-in project - org.phrancol.osgi.jpetstore.dao 并创建一个同名package,将jpetstore\src\org\springframework\samples\jpetstore\dao里面的东西全部copy进去,在MANIFEST.MF里面导入依赖包(有一些包需要导入成bundle,例如 spring-jdbc,spring-ibatis),启动看看,发现spring-ibatis和persistence没有启动,手动启动spring-ibatis,发现缺少ibatis,于是 New-> Other -> Plug-in from existing JAR archives ,导入ibatis,再启动,发现少 javax.transaction,于是用相同方法导入。
四、配置文件
关于spring的配置文件,只有3个
petstore-servlet.xml - 用于mvc的,定义dispatch bean
applicationContext.xml - 用于域逻辑的
dataAccessContext-local.xml - 用于DAO的,定义了DataSource
(一)dataAccessContext-local.xml
1,将 jdbc.properties和sql-map-config.xml拷贝到META-INF目录里,sql-map-config.xml里面的资源路径可能需要修改一下,maps里面的模型的class属性也需要改一下
2,在META-INF目录中创建一个目录spring,将dataAccessContext-local.xml拷贝进去,将applicationContext.xml里面的加载jdbc.properties的bean移植过来,放在DataSource的上面
<
bean
id
="propertyConfigurer"
class
="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"
>
<
property
name
="locations"
>
<
list
>
<
value
>
META-INF/jdbc.properties
</
value
>
</
list
>
</
property
>
</
bean
>
再把dataAccessContext-local.xml里面的dao-bean->class属性值修改一下,再把sqlMapClient的configLocation的值修改成META-INF/sql-map-config.xml,例如
<!--
SqlMap setup for iBATIS Database Layer
-->
<
bean
id
="sqlMapClient"
class
="org.springframework.orm.ibatis.SqlMapClientFactoryBean"
>
<
property
name
="configLocation"
value
="META-INF/sql-map-config.xml"
/>
<
property
name
="dataSource"
ref
="dataSource"
/>
</
bean
>
<!--
========================= DAO DEFINITIONS: IBATIS IMPLEMENTATIONS =========================
-->
<
bean
id
="accountDao"
class
="org.phrancol.sogi.jpetstore.dao.ibatis.SqlMapAccountDao"
>
<
property
name
="sqlMapClient"
ref
="sqlMapClient"
/>
</
bean
>
3,启动,报错,找不到ibatis的某个类,报错信息如下
org.springframework.beans.BeanInstantiationException: Could not instantiate bean
class
[org.springframework.orm.ibatis.SqlMapClientFactoryBean]: Constructor threw exception; nested exception is java.lang.NoClassDefFoundError: com.ibatis.sqlmap.engine.transaction.external.ExternalTransactionConfig
Caused by: java.lang.NoClassDefFoundError: com.ibatis.sqlmap.engine.transaction.external.ExternalTransactionConfig
at org.springframework.orm.ibatis.SqlMapClientFactoryBean.
class
$(SqlMapClientFactoryBean.java:
72
)
看来是spring-ibatis找不到com.ibatis.sqlmap.engine.transaction.external.ExternalTransactionConfig,来看看spring-ibatis的MANIFEST.MF,Dependencies的Import Packages, 加上com.ibatis.sqlmap.engine.transaction.external,再启动,找不到DBCP,导入common-DBCP和common-pool,再启动,正常,SS一下,还是正常
(二)applicationContext.xml
1,在org.phrancol.osgi.jpetstore.domain.logic的META-INF目录中创建一个目录spring,将applicationContext.xml拷贝进去,并改名为 logic-context.xml,删除propertyConfigurer这个bean,因为它已经被移到了dataAccessContext-local.xml里面,将里面的bean的class属性修改一下,启动,发现缺少org.aspectj,导入一个,再启动,报错
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named
'
accountDao
'
is defined
无法找到 accountDao,accountDao被定义在org.phrancol.osgi.jpetstore.dao里面了,于是现在需要使用spring-osgi 来进行跨bundle的引用了。
2,org.phrancol.osgi.jpetstore.dao/META-INF/spring目录中创建一个spring配置文件dataAccessContext-local-osgi.xml,使用<osgi:service>将accountDao和其他被引用的DAO注册成为OSGI Service
<?
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:osgi
="http://www.springframework.org/schema/osgi"
xsi:schemaLocation
="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/osgi http://www.springframework.org/schema/osgi/spring-osgi.xsd"
>
<
osgi:service
id
="accountDaoOsgi"
ref
="accountDao"
interface
="org.phrancol.osgi.jpetstore.dao.AccountDao"
>
</
osgi:service
>
<
osgi:service
id
="categoryDaoOsgi"
ref
="categoryDao"
interface
="org.phrancol.osgi.jpetstore.dao.CategoryDao"
>
</
osgi:service
>
<
osgi:service
id
="productDaoOsgi"
ref
="productDao"
interface
="org.phrancol.osgi.jpetstore.dao.ProductDao"
>
</
osgi:service
>
<
osgi:service
id
="itemDaoOsgi"
ref
="itemDao"
interface
="org.phrancol.osgi.jpetstore.dao.ItemDao"
>
</
osgi:service
>
<
osgi:service
id
="orderDaoOsgi"
ref
="orderDao"
interface
="org.phrancol.osgi.jpetstore.dao.OrderDao"
>
</
osgi:service
>
</
beans
>
3,在org.phrancol.osgi.jpetstore.domain.logic/META-INF/spring 也创建一个spring配置文件logic-context-osgi.xml,使用<osgi:reference>获取服务
<?
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:osgi
="http://www.springframework.org/schema/osgi"
xsi:schemaLocation
="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd
http://www.springframework.org/schema/osgi http://www.springframework.org/schema/osgi/spring-osgi.xsd"
>
<
osgi:reference
id
="accountDaoOsgi"
interface
="org.phrancol.osgi.jpetstore.dao.AccountDao"
/>
<
osgi:reference
id
="categoryDaoOsgi"
interface
="org.phrancol.osgi.jpetstore.dao.CategoryDao"
/>
<
osgi:reference
id
="productDaoOsgi"
interface
="org.phrancol.osgi.jpetstore.dao.ProductDao"
/>
<
osgi:reference
id
="itemDaoOsgi"
interface
="org.phrancol.osgi.jpetstore.dao.ItemDao"
/>
<
osgi:reference
id
="orderDaoOsgi"
interface
="org.phrancol.osgi.jpetstore.dao.OrderDao"
/>
</
beans
>
将logic-context.xml里面的bean petStore的属性引用修改一下
<
bean
id
="petStore"
class
="org.phrancol.osgi.jpetstore.domain.logic.PetStoreImpl"
>
<
property
name
="accountDao"
ref
="accountDaoOsgi"
/>
<
property
name
="categoryDao"
ref
="categoryDaoOsgi"
/>
<
property
name
="productDao"
ref
="productDaoOsgi"
/>
<
property
name
="itemDao"
ref
="itemDaoOsgi"
/>
<
property
name
="orderDao"
ref
="orderDaoOsgi"
/>
</
bean
>
再启动看看,还是报错
org.springframework.beans.factory.BeanCreationException: Error creating bean with name
'
txAdvice
'
: Cannot resolve reference to bean
'
transactionManager
'
while
setting bean property
'
transactionManager
'
; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named
'
transactionManager
'
is defined
原来是transactionManager的问题,在DAO里面将transactionManager注册成osgi service,在domain.logic里面引用,然后给txAdvice加上
transaction-manager
属性
<
tx:advice
id
="txAdvice"
transaction-manager
="transactionManagerOsgi"
>
<
tx:attributes
>
<
tx:method
name
="insert*"
/>
<
tx:method
name
="update*"
/>
<
tx:method
name
="*"
read-only
="true"
/>
</
tx:attributes
>
</
tx:advice
>
OK,启动,正常了
(三)petstore-servlet.xml
最后到spring-mvc的配置文件了,在前面已经将这个配置文件拷贝到org.phrancol.osgi.jpetstore.springmvc/META-INF/dispatcher目录下了,并且做了一些修改,让DispatcherServlet加载用以显示首页
1,新建一个package org.phrancol.osgi.jpetstore.springmvc.controller,将jpetstore\src\org\springframework\samples\jpetstore\web\spring里面的java文件拷贝进去,将依赖包导入,然后在petstore-servlet.xml里面加上一个dispatch-bean,
<
bean
name
="/shop/addItemToCart.do"
class
="org.phrancol.osgi.jpetstore.springmvc.controller.AddItemToCartController"
>
<
property
name
="petStore"
ref
="petStore"
/>
</
bean
>
启动看看效果,报错
Caused by: java.lang.ClassNotFoundException: org.phrancol.osgi.jpetstore.springmvc.controller.AddItemToCartController
居然找不到这个类,来看看ClassLoader
Thread.currentThread().getContextClassLoader()
->
org.eclipse.core.runtime.internal.adaptor.ContextFinder
Activator
'
s ClassLoader -> org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader
原来如此,那就这样
Thread.currentThread().setContextClassLoader(
this
.getClass().getClassLoader())
其实这样也是可以的,但是为了不绕弯路,而且既然是Spring的配置文件,Spring-osgi也提供得有Bundle的ClassLoader ->
org.springframework.osgi.context.support.BundleDelegatingClassLoader
交给Spring的ClassLoader吧
2,看一段代码 org.springframework.osgi.context.support.BundleContextAwareProcessor
public
boolean
postProcessAfterInstantiation(Object bean, String beanName)
throws
BeansException
{
if
(bean
instanceof
BundleContextAware)
{
if
(
this
.bundleContext
==
null
)
{
throw
new
IllegalStateException(
"
Cannot satisfy BundleContextAware for bean '
"
+
beanName
+
"
' without BundleContext
"
);
}
if
(logger.isDebugEnabled())
{
logger.debug(
"
Invoking setBundleContext on BundleContextAware bean '
"
+
beanName
+
"
'
"
);
}
((BundleContextAware) bean).setBundleContext(
this
.bundleContext);
}
return
true
;
}
3,再来看看这个接口
org.springframework.osgi.context
.BundleContextAware
Interface that enables beans to find the bundle context they are defined in. Note that in most circumstances there is no need
for
a bean to implement
this
interface
.
OK,那就写个BundleContextAware,然后配置成Bean就可以了
4,创建一个 Plug-in project org.phrancol.osgi.jpetstore.util,并创建同名package,新建一个Interface HttpServiceRegister 用于注册Servlet或Resource,这个过程在方法 public void serviceRegister(BundleContext context);里进行,新建一个Class BundleServiceRegister
public
class
BundleServiceRegister
implements
BundleContextAware
{
private
HttpServiceRegister httpServiceRegister;
public
BundleServiceRegister(HttpServiceRegister httpServiceRegister)
{
this
.httpServiceRegister
=
httpServiceRegister;
}
public
void
setBundleContext(BundleContext context)
{
this
.httpServiceRegister.serviceRegister(context);
}
}
5,生成一个类org.phrancol.osgi.jpetstore.springmvc.SpringmvcHttpServiceRegister implements HttpServiceRegister
将Activator.start方法里的内容拷贝到SpringmvcHttpServiceRegister.serviceRegister方法里,删除Activator(MANIFEST.MF)
6,在org.phrancol.osgi.jpetstore.springmvc/META-INF/下建立一个目录spring,从别的地方copy一个bean配置文件过来,改名为logic-context.xml,加入如下配置
<
beans
>
<
bean
id
="springHttpServiceRegister"
class
="org.phrancol.osgi.jpetstore.util.BundleServiceRegister"
>
<
constructor-arg
>
<
bean
class
="org.phrancol.osgi.jpetstore.springmvc.SpringmvcHttpServiceRegister"
/>
</
constructor-arg
>
</
bean
>
</
beans
>
启动,报错,petstore-servlet.xml里面的bean petStore 找不到,这个bean被定义在org.phrancol.osgi.jpetstore.domain.logic里面,于是使用<osgi:service>和<osgi:reference>来获取
在logic-context-osgi.xml里面加上
<
osgi:service
id
="petStoreOsgi"
ref
="petStore"
interface
="org.phrancol.osgi.jpetstore.domain.logic.PetStoreFacade"
>
</
osgi:service
>
在springmvc-context.xml加入如下内容(注意namespaces)
<
osgi:reference
id
="petStoreOsgi"
interface
="org.phrancol.osgi.jpetstore.domain.logic.PetStoreFacade"
/>
修改一下petstore-servlet.xml
<
property
name
="petStore"
ref
="petStore"
/>
改成
<
property
name
="petStore"
ref
="petStoreOsgi"
/>
OK,这次应该没问题了,启动看看效果,还是报错
org.springframework.beans.factory.BeanCreationException: Error creating bean with name
'
/shop/addItemToCart.do
'
defined in ServletContext resource [
/
META
-
INF
/
dispatcher
/
petstore
-
servlet.xml]: Cannot resolve reference to bean
'
petStoreOsgi
'
while
setting bean property
'
petStore
'
; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named
'
petStoreOsgi
'
is defined
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named
'
petStoreOsgi
'
is defined
at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanDefinition(DefaultListableBeanFactory.java:
353
)
at org.springframework.beans.factory.support.AbstractBeanFactory.getMergedBeanDefinition(AbstractBeanFactory.java:
916
)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:
243
)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:
160
)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:
261
)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:
109
)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:
1100
)
居然找不到petStoreOsgi这个bean......
posted on 2007-09-07 10:26
Phrancol Yang
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