问题
I have setup a spring boot (v 1.1.9) application to deploy as a WAR file. And I'm trying to integrate this web application with an existing data service module (added as a maven dependency).
Environment trying to deploy: WebSphere Application Server 8.5.5.4
The issue I'm facing is an application start-up failure when try to look-up a JNDI dataSource (jdbc/fileUploadDS) as below within the dependent data service module.
@Configuration
@Profile("prod")
public class JndiDataConfig implements DataConfig {
@Bean
public DataSource dataSource() throws NamingException {
Context ctx = new InitialContext();
return (DataSource) ctx.lookup("java:comp/env/jdbc/fileUploadDS");
}
}
My Spring Boot configuration:
@Configuration
@ComponentScan(basePackages = { "au.com.aiaa.fileupload.data.*", "demo" })
@EnableAutoConfiguration(exclude = { HibernateJpaAutoConfiguration.class, DataSourceAutoConfiguration.class })
public class SampleApplication extends SpringBootServletInitializer {
public static void main(String[] args) {
SpringApplication.run(applicationClass, args);
}
@Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
return application.sources(applicationClass);
}
private static Class<SampleApplication> applicationClass = SampleApplication.class;
@Bean
public static Properties fileUploadJndiProperties() throws NamingException {
JndiObjectFactoryBean jndiFactoryBean = new JndiObjectFactoryBean();
jndiFactoryBean.setJndiName("props/FileUploadProperties");
jndiFactoryBean.setExpectedType(Properties.class);
jndiFactoryBean.setLookupOnStartup(true);
jndiFactoryBean.afterPropertiesSet();
return (Properties) jndiFactoryBean.getObject();
}
}
Note that I'm able to lookup props/FileUploadProperties successfully. But failing to do the same for a datasource.
My doubt is it is trying to load a EmbeddedWebApplicationContext which is not what I want.
The stack trace is:
Instantiation of bean failed; nested exception is org.springframework.beans.factory.BeanDefinitionStoreException: Factory method [public javax.sql.DataSource au.com.aiaa.fileupload.data.dao.configuration.JndiDataConfig.dataSource() throws javax.naming.NamingException] threw exception; nested exception is **javax.naming.NameNotFoundException: Name comp/env/jdbc not found in context "java:".**
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:301)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1186)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:537)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:302)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:298)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:706)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:762)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:482)
at **org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:109)**
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:691)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:320)
at org.springframework.boot.builder.SpringApplicationBuilder.run(SpringApplicationBuilder.java:142)
at org.springframework.boot.context.web.SpringBootServletInitializer.createRootApplicationContext(SpringBootServletInitializer.java:89)
at org.springframework.boot.context.web.SpringBootServletInitializer.onStartup(SpringBootServletInitializer.java:51)
at org.springframework.web.SpringServletContainerInitializer.onStartup(SpringServletContainerInitializer.java:175)
..................
Caused by: org.springframework.beans.factory.BeanDefinitionStoreException: Factory method [public javax.sql.DataSource au.com.aiaa.fileupload.data.dao.configuration.JndiDataConfig.dataSource() throws javax.naming.NamingException] threw exception; nested exception is **javax.naming.NameNotFoundException: Name comp/env/jdbc not found in context "java:".**
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:188)
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:586)
... 132 common frames omitted
Caused by: javax.naming.NameNotFoundException: Name comp/env/jdbc not found in context "java:".
at com.ibm.ws.naming.ipbase.NameSpace.getParentCtxInternal(NameSpace.java:1970)
at com.ibm.ws.naming.ipbase.NameSpace.retrieveBinding(NameSpace.java:1377)
at com.ibm.ws.naming.ipbase.NameSpace.lookupInternal(NameSpace.java:1220)
at com.ibm.ws.naming.ipbase.NameSpace.lookup(NameSpace.java:1142)
at com.ibm.ws.naming.urlbase.UrlContextImpl.lookupExt(UrlContextImpl.java:1436)
at com.ibm.ws.naming.java.javaURLContextImpl.lookupExt(javaURLContextImpl.java:477)
at com.ibm.ws.naming.java.javaURLContextRoot.lookupExt(javaURLContextRoot.java:485)
at com.ibm.ws.naming.java.javaURLContextRoot.lookup(javaURLContextRoot.java:370)
at org.apache.aries.jndi.DelegateContext.lookup(DelegateContext.java:161)
at javax.naming.InitialContext.lookup(InitialContext.java:436)
at au.com.aiaa.fileupload.data.dao.configuration.JndiDataConfig.dataSource(JndiDataConfig.java:41)
at au.com.aiaa.fileupload.data.dao.configuration.JndiDataConfig$$EnhancerBySpringCGLIB$$8001dbbe.CGLIB$dataSource$0(<generated>)
at au.com.aiaa.fileupload.data.dao.configuration.JndiDataConfig$$EnhancerBySpringCGLIB$$8001dbbe$$FastClassBySpringCGLIB$$3c9e0518.invoke(<generated>)
at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228)
at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:312)
at au.com.aiaa.fileupload.data.dao.configuration.JndiDataConfig$$EnhancerBySpringCGLIB$$8001dbbe.dataSource(<generated>)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:60)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:37)
at java.lang.reflect.Method.invoke(Method.java:611)
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:166)
What am I missing here? Even when I try to explicitly define the dataSource bean method in SampleApplication.java like below it fails with the same error.
@Bean
public static DataSource dataSource() throws NamingException {
JndiObjectFactoryBean jndiFactoryBean = new JndiObjectFactoryBean();
jndiFactoryBean.setJndiName("java:comp/env/jdbc/fileUploadDS");
jndiFactoryBean.setExpectedType(DataSource.class);
jndiFactoryBean.setLookupOnStartup(true);
jndiFactoryBean.setResourceRef(true);
jndiFactoryBean.afterPropertiesSet();
return (DataSource) jndiFactoryBean.getObject();
}
I referred this and it says we need to set enableNaming() on servlet container? Can I do something similar for non-embedded web application context? Or is it purely a WAS 8.5 issue??
回答1:
You need to have resource reference with jdbc/fileUploadDS name in your web.xml. And make sure it is bound to actual datasource name during installation or via ibm-web-bnd.xml file.
Definition in web.xml:
<resource-ref>
<description />
<res-ref-name>jdbc/fileUploadDS</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Container</res-auth>
<res-sharing-scope>Shareable</res-sharing-scope>
</resource-ref>
If you dont want to use web.xml, then in normal Java EE app you could just add in web component (servlet, filter) the following class annotation:
@Resource(name="jdbc/fileUploadDS", type=javax.sql.DataSource.class, lookup="jdbc/fileUploadDS")
but I'm not Spring-boot expert, so don't know, if it will work or is possible there.
回答2:
I am able to connect my Spring-Boot application (deployed in Websphere Application Server 9) to WAS datasource. The following code worked for me, for connecting to DataSource:
@Bean(name = "WASDataSource")
public DataSource WASDataSource() throws Exception {
JndiDataSourceLookup dataSourceLookup = new JndiDataSourceLookup();
return dataSourceLookup.getDataSource("DSNAME");
}
@Bean(name = "WASDataSourceJdbcTemplate")
public JdbcTemplate jdbcTemplate_WASDS(@Qualifier("WASDataSource")
DataSource dsDB2) {
return new JdbcTemplate(dsDB2);
}
Note: The name of Datasource "DSNAME" is the name which appears on the UI of Websphere console. You can see that via -> Select Resources > JDBC > Data Sources.
Then I created jdbc template:
@Autowired
@Qualifier("WASDataSourceJdbcTemplate")
private JdbcTemplate db2WASTemplate;`
And running query using the query method works fine :
db2WASTemplate.query()
I did not create any Web.xml or ibm-web-bnd.xml files
回答3:
I am facing the same problem. I don't know how to define tag in spring boot since there is no web.xml file in the spring boot.
So far what I came to know that we have to define it in the application file from where we start our spring application. I think we need to use this method to set the Datasource:
@Bean(destroyMethod="")
@ConfigurationProperties(prefix="datasource.mine")
public DataSource dataSource() throws Exception {
JndiDataSourceLookup dataSourceLookup = new JndiDataSourceLookup();
return dataSourceLookup.getDataSource("java:jdbc/configurationFile");
}
回答4:
I just configured spring boot with my custom datasource as follows:
@Bean
@ConfigurationProperties("spring.datasource")
public DataSource dataSource() {
return DataSourceBuilder.create().build();
}
and inside the application.properties file I defined all datasource settings as usual
spring.datasource.driver-class-name= ***
spring.datasource.url= ***
spring.datasource.username= ***
spring.datasource.password= ***
spring.datasource.jndi-name=jdbc/myDB
It works no nicely with @SpringBootApplication with all other default settings
Thanks
来源：https://stackoverflow.com/questions/27479263/spring-boot-jndi-datasource-lookup-failure-name-comp-env-jdbc-not-found-in-con