MG>below ________________________________ From: developer researcher <java.developer.researc...@gmail.com> Sent: Friday, May 5, 2017 10:09 PM To: Struts Users Mailing List Subject: Problem using the Spring's AOP in Struts2's Actions with json-plugin
Hello, I am using Strust 2 <sp?> with spring-plugin and json-plugin to use: 1. Injection of dependencies: apparently everything is working well. 2. Spring's AOP: works when applied over methods of injected objects in the Struts Actions but not when applied over methods of actions (my class extends from ActionSupport and I use the @Action annotation at method level) MG>spring does not know what ActionSupport as it is a Struts classes besides which ActionSupport are not considered MG>spring beans which are simple pojos with a no-arg constructor https://docs.spring.io/spring/docs/current/spring-framework-reference/html/beans.html 7. The IoC container - Spring<https://docs.spring.io/spring/docs/current/spring-framework-reference/html/beans.html> docs.spring.io As the preceding diagram shows, the Spring IoC container consumes a form of configuration metadata; this configuration metadata represents how you as an application ... This situation has generated the following questions: 1. Are the actions created and managed by Spring or Struts? It's supposed to be Spring, but I have this doubt because Spring's AOP is supposed to work on Spring beans but in my case it does not work and because I do not use the Spring's @Component annotation in the Action class MG>correct but you can also specify a spring-bean in spring-beans.xml in your classpath e.g.: <bean id="springTest" name="springTest" class="org.struts.SpringTest"/> 2. Is there a way to use Spring AOP in Struts2 Actions using the "JDK dynamic proxies"? I have tested with the following results: a) When Spring uses "JDK dynamic proxies" the Struts2 Action is not executed and the following exception is thrown: NoSuchMethodException (see NoSuchMethodException.txt) b) When Spring uses "CGLIB proxy" in an Action whose result is of the default type: the Action works correctly c) When Spring uses "CGLIB proxy" in an Action whose result is of type json: the Struts2 Action is executed but the following exception is thrown: OperationNotSupportedException (see OperationNotSupportedException.txt). When I do not use AOP this Action works correctly. MG>builder.bind does not recognise json result-set as a valid javax.sql.DataSource..here is an example of builder.bind org.springframework.mock.jndi.SimpleNamingContextBuilder builder = new org.springframework.mock.jndi.SimpleNamingContextBuilder(); * DataSource ds = new org.springframework.jdbc.datasource.DriverManagerDataSource(...); * builder.bind("java:comp/env/jdbc/myds", ds); MG>as of now JSON is not a valid javax.sql.DataSourceHere is Doc: <p>In a J2EE container, it is recommended to use a JNDI DataSource provided by * the container. Such a javax.sql.DataSource can be exposed as a javax.sql.DataSource bean in a Spring * ApplicationContext via {@link org.springframework.jndi.JndiObjectFactoryBean}, * for seamless switching to and from a local javax.sql.DataSource bean like this class. * For tests, you can then either set up a mock JNDI environment through Spring's * {@link org.springframework.mock.jndi.SimpleNamingContextBuilder}, or switch the * bean definition to a local javax.sql.DataSource(which is simpler and thus recommended). * * <p>If you need a "real" connection pool outside of a J2EE container, consider * <a href="http://commons.apache.org/proper/commons-dbcp";>Apache Commons DBCP</a> * or <a href="http://sourceforge.net/projects/c3p0";>C3P0</a>. * Commons DBCP's BasicDataSource and C3P0's ComboPooledDataSource are full * connection pool beans, supporting the same basic properties as this class * plus specific settings (such as minimal/maximal pool size etc). mg>JSON is not yet a valid javax.sql.DataSource according to Spring MG>also you have not declared a namespace that NamingContext can reference which is causing exception MG>HTH Thanks
