Java/Spring/FileSystemXmlApplicationContext
Load config with FileSystemXmlApplicationContext
<source lang="java">
File: IBusinessLogic.java
public interface IBusinessLogic {
public void foo();
}
File: MainApplication.java
import org.springframework.context.ApplicationContext; import org.springframework.context.support.FileSystemXmlApplicationContext; public class MainApplication {
public static void main(String [] args) { ApplicationContext ctx = new FileSystemXmlApplicationContext("build/springconfig.xml"); IBusinessLogic testObject = (IBusinessLogic) ctx.getBean("businesslogicbean"); testObject.foo(); }
}
File: springconfig.xml <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd"> <beans>
<bean id="businesslogicbean" class="org.springframework.aop.framework.ProxyFactoryBean"> <property name="proxyInterfaces"> <value>IBusinessLogic</value> </property> <property name="target"> <ref local="beanTarget"/> </property> <property name="interceptorNames"> <list> <value>theTracingBeforeAdvisor</value> <value>theTracingAfterAdvisor</value> </list> </property> </bean> <bean id="beanTarget" class="BusinessLogic"/> <bean id="theTracingBeforeAdvisor" class="org.springframework.aop.support.RegexpMethodPointcutAdvisor"> <property name="advice"> <ref local="theTracingBeforeAdvice"/> </property> <property name="pattern"> <value>.*</value> </property> </bean> <bean id="theTracingAfterAdvisor" class="org.springframework.aop.support.RegexpMethodPointcutAdvisor"> <property name="advice"> <ref local="theTracingAfterAdvice"/> </property> <property name="pattern"> <value>.*</value> </property> </bean> <bean id="theTracingBeforeAdvice" class="TracingBeforeAdvice"/> <bean id="theTracingAfterAdvice" class="TracingAfterAdvice"/>
</beans>
File: TracingAfterAdvice.java import java.lang.reflect.Method; import org.springframework.aop.AfterReturningAdvice; public class TracingAfterAdvice implements AfterReturningAdvice {
public void afterReturning(Object object, Method m, Object[] args, Object target) throws Throwable { System.out.println("Hello world! (by " + this.getClass().getName() + ")"); }
}
File: TracingBeforeAdvice.java import java.lang.reflect.Method; import org.springframework.aop.MethodBeforeAdvice; public class TracingBeforeAdvice implements MethodBeforeAdvice {
public void before(Method m, Object[] args, Object target) throws Throwable { System.out.println("Hello world! (by " + this.getClass().getName() + ")"); }
}
File: BusinessLogic.java
public class BusinessLogic implements IBusinessLogic {
public void foo() { System.out.println("Inside BusinessLogic.foo()"); }
}
</source>
Setting Up Spring Ant Environment
<source lang="java">
File: BusinessLogic.java
public class BusinessLogic implements IBusinessLogic {
public void foo() { System.out.println("Inside BusinessLogic.foo()"); }
}
File: IBusinessLogic.java
public interface IBusinessLogic {
public void foo();
}
File: MainApplication.java
import org.springframework.context.ApplicationContext; import org.springframework.context.support.FileSystemXmlApplicationContext; public class MainApplication {
public static void main(String [] args) { // Read the configuration file ApplicationContext ctx = new FileSystemXmlApplicationContext("build/springconfig.xml"); //Instantiate an object IBusinessLogic testObject = (IBusinessLogic) ctx.getBean("businesslogicbean"); //Execute the public method of the bean (the test) testObject.foo(); }
}
File: springconfig.xml <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd"> <beans>
<bean id="businesslogicbean" class="org.springframework.aop.framework.ProxyFactoryBean"> <property name="proxyInterfaces"> <value>IBusinessLogic</value> </property> <property name="target"> <ref local="beanTarget"/> </property> </bean> <bean id="beanTarget" class="BusinessLogic"/>
</beans>
</source>