I create a properties file contain system properties in classpath, the name is system.properties
the file like :
system.project_name=springsilkworm
I also use EHcache, the ehcache.xml like:
<diskStore path="${java.io.tmpdir}/${system.project_name}/cache" />
I want use the system.project_name define in system.properties。
I developed my project based on Spring, so I created applicationContext.xml like:
<context:property-placeholder location="classpath*:/system.properties" ignore-resource-not-found="true" ignore-unresolvable="true" />
<bean class="org.springframework.beans.factory.config.MethodInvokingFactoryBean">
<property name="targetClass" value="java.lang.System" />
<property name="targetMethod" value="setProperty" />
<property name="arguments">
<list>
<value>system.project_name</value>
<value>${system.project_name}</value>
</list>
</property>
</bean>
<bean id="ehCacheManager" class="org.springframework.cache.ehcache.EhCacheManagerFactoryBean">
<property name="configLocation" value="classpath:/ehcache.xml" />
<property name="shared" value="true" />
</bean>
but when I start my app， I find the folder which EHcahce use like :
that was say, the MethodInvokingFactoryBean didn't work, I also get the property in my code with System.getProperty("system.project_name") code，I got the result of “null”， why? I couldn't find out the wrong.
Related
I am using Spring Batch 2 version. I am reading data from database using JdbcCursorItemReader.I have successfully fetched the data and also written it to a file.
Below is itemReader bean defined in Job.xml File::
<bean id="itemReader"
class="org.springframework.batch.item.database.JdbcCursorItemReader"
scope="step">
<property name="dataSource" ref="dataSource" />
<property name="sql"
value="select u.ID, u.USER_LOGIN, u.PASSWORD, u.AGE from USERS u" />
</property>
<property name="rowMapper">
<bean class="com.example.UserRowMapper" />
</property>
</bean>
But the issue is,my query is quite big so I just want to keep that query out of xml file and get that query from other file or property file(.property,yaml or xml).
So that I can write xml code as below::
<bean id="itemReader" class="org.springframework.batch.item.database.JdbcCursorItemReader" scope="step">
<property name="dataSource" ref="dataSource" />
<property name="sql" value="$sql_query" />
</property><property name="rowMapper">
<bean class="com.example.UserRowMapper" />
</property>
</bean>
What is best way to achieve this?
<bean id="myProperties" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="locations">
<list>
<value>path1.properties</value>
<value>path2.properties</value>
.....
</list>
</property>
<property name="ignoreUnresolvablePlaceholders" value="false"/>
</bean>
...
<bean id="itemReader" class="org.springframework.batch.item.database.JdbcCursorItemReader" scope="step">
<property name="dataSource" ref="dataSource" />
<property name="sql" value="${sql_query}" />
</property><property name="rowMapper">
<bean class="com.example.UserRowMapper" />
</property>
</bean>
path1.properties:
sql_query=value
PropertySourcesPlaceholderConfigurer is preffered in 3.1 and higher, instead of PropertyPlaceholderConfigurer
You can add sql in jobexecutioncontext by using job listener before step.
I asked a similar question, but based on the responses, I did a bad job describing what I am after. I have a spring 4 webapp that loads properties from a properties file. We consume those properties both via the "${proper.name"} expressions in spring, as well as by injecting a properties object into some of our classes.
We want to move most of the properties to a database table and make them reloadable. However, a few need to stay in local properties, potentially overriding the database setting. These should also be loaded dynamically after the app is running.
I know that once a particular bean is injected, it won't get reloaded, that doesn't concern me, it's up to that module to handle that. But I am having trouble getting the behavior I want. In particular, I have implemented an AbstractConfiguration from apache commons configuration to get the dual source and overriding I am after. But while it works for injecting the properties object, expressions loaded with "${prop.name}" don't work at all.
How can I get them to work? Did I override the wrong thing? Is it just some config detail?
<bean id="sysProperties" class="org.springframework.beans.factory.config.MethodInvokingFactoryBean">
<property name="targetObject" ref="databaseConfigurator" />
<property name="targetMethod" value="getProperties"/>
</bean>
<bean id="databaseConfigurator" class="my.util.config.MyDatabaseConfigurator">
<property name="datasource" ref="dataSource" />
<property name="propertyFile" value="/WEB-INF/my.properties" />
<property name="applicationName" value="ThisApp" />
</bean>
<bean id="dbConfigFactory" class="org.apache.commons.configuration.ConfigurationConverter" factory-method="getProperties">
<constructor-arg ref="databaseConfigurator" />
</bean>
I haven't tested this, but I think it might work.
<bean id="sysProperties" class="org.springframework.beans.factory.config.MethodInvokingFactoryBean">
<property name="targetObject" ref="databaseConfigurator" />
<property name="targetMethod" value="getProperties"/>
</bean>
<bean id="databaseConfigurator" class="my.util.config.MyDatabaseConfigurator">
<property name="datasource" ref="dataSource" />
<property name="propertyFile" value="/WEB-INF/my.properties" />
<property name="applicationName" value="ThisApp" />
</bean>
<bean name="PropertyPlaceholderConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="properties" ref="CommonsConfigurationFactoryBean"/>
</bean>
<bean name="CommonsConfigurationFactoryBean" class="org.springmodules.commons.configuration.CommonsConfigurationFactoryBean">
<constructor-arg ref="databaseConfigurator"/>
</bean>
I want to use simple-spring-memcached to cache data. so using this https://code.google.com/p/simple-spring-memcached/wiki/Getting_Started for my purpose.
i add in my dispatcher-servlet.xml
<aop:aspectj-autoproxy />
<import resource="simplesm-context.xml" />
<bean name="cacheManager" class="com.google.code.ssm.spring.SSMCacheManager">
<property name="caches">
<set>
<bean class="com.google.code.ssm.spring.SSMCache">
<constructor-arg name="cache" index="0" ref="defaultCache"/>
<!-- 5 minutes -->
<constructor-arg name="expiration" index="1" value="0"/>
<!-- #CacheEvict(..., "allEntries" = true) doesn't work -->
<constructor-arg name="allowClear" index="2" value="false"/>
</bean>
</set>
</property>
</bean>
<bean name="defaultCache" class="com.google.code.ssm.CacheFactory">
<property name="cacheName" value="defaultCache"/>
<property name="cacheClientFactory">
<bean name="cacheClientFactory" class="com.google.code.ssm.providers.xmemcached.MemcacheClientFactoryImpl"/>
</property>
<property name="addressProvider">
<bean class="com.google.code.ssm.config.DefaultAddressProvider">
<property name="address" value="127.0.0.1:11211"/>
</bean>
</property>
<property name="configuration">
<bean class="com.google.code.ssm.providers.CacheConfiguration">
<property name="consistentHashing" value="true"/>
</bean>
</property>
</bean>
i also add simple-spring-memcached-3.5.0.jar and spymemcache.jar,spymemcache-provider.jar to lib folder. but when i run my project occur this exception:
Cannot find class **[net.nelz.simplesm.config.MemcachedClientFactory]** for bean with name 'memcachedClientFactory' defined in ServletContext resource [/WEB-INF/simplesm-context.xml]; nested exception is java.lang.ClassNotFoundException: net.nelz.simplesm.config.MemcachedClientFactory
you must add lib for this class.
It seams that you have also an old version of Simple Spring Memcached on your classpath. The class net.nelz.simplesm.config.MemcachedClientFactory is no longer available in 3.x. Check your classpath and remove all Simple Spring Memcached artifacts older than 3.5.0.
I define a system.properties in my class path, then I do like this in spring configuration xml:
<context:property-placeholder location="classpath*:/system.properties" ignore-resource-not-found="true" ignore-unresolvable="true" />
I aslo defind ehcache like this :
<cache:annotation-driven cache-manager="cacheManager" />
<bean id="ehCacheManager" class="org.springframework.cache.ehcache.EhCacheManagerFactoryBean">
<property name="configLocation" value="classpath:/ehcache.xml" />
<property name="shared" value="true" />
</bean>
<bean id="cacheManager" class="org.springframework.cache.ehcache.EhCacheCacheManager">
<property name="cacheManager" ref="ehCacheManager" />
</bean>
I define a properties in system.properties file :
system.project_name=myproject
ehcache.xml like this :
<diskStore path="e:/${system.project_name}/cache" />
I want use the system.project_name property to store the cache, but when I deploy my project, I find the Directory is：
that is say I could't use the properties even I define a PropertyPlaceholderConfigurer in Spring configuration xml file？
I am using Spring MVC 3. I have message bundles in following format :
message_en_US.properties
message_en.properties
message_USA.properties
In my JSP I am using :
Now, the order of finding the values should be en_US, then en then USA property files.
how can i customize this ?
You should use configuration below. So, if you want to set default language you can use the second one.
In my src/main/resources I have mymessages_en_US.properties and mymessages_es_ES.properties
<bean id="messageSource" class="org.springframework.context.support.ReloadableResourceBundleMessageSource">
<property name="basenames">
<array>
<value>classpath:mymessages</value>
</array>
</property>
<property name="defaultEncoding" value="UTF-8" />
<property name="cacheSeconds" value="0" />
</bean>
<bean id="localeResolver"
class="org.springframework.web.servlet.i18n.CookieLocaleResolver">
<property name="defaultLocale" value="es_ES" />
</bean>