Problems in integrating gwt 1.7 with spring 2.5

Hello, everyone, I am integrating the gwt 1.7 with spring 2.5 MVC,
only that it presents problems. I am using the class
GWTSpringController to integrate.

see the error below,

any suggestions ..

2009-07-28 15:58:08,015 INFO [DefaultSingletonBeanRegistry.java: 421]:
destroying singletons in
org.springframework.beans.factory.support.DefaultListableBeanFactory @
b6aca9: defining beans
[org.springframework.beans.factory.config.PropertyPlaceholderConfigurer
# 0, greetingServiceImpl, pessoaDaoImpl, pessoaServiceImpl,
org.springframework.context.annotation.internalCommonAnnotationProcessor,
org.springframework.context.annotation.internalAutowiredAnnotationProcessor,
org.springframework.context.annotation.internalRequiredAnnotationProcessor,
DataSource, transactionManager, org.springframework.aop.config .
internalAutoProxyCreator,
org.springframework.transaction.annotation.AnnotationTransactionAttributeSource
# 0,
org.springframework.transaction.interceptor.TransactionInterceptor #
0, org.springframework.transaction.config.internalTransactionAdvisor];
root of factory hierarchy
2009-07-28 15:58:08,031 ERROR [ContextLoader.java: 215]: Context
initialization failed
org.springframework.beans.factory.BeanCreationException: Error
creating bean with name 'greetingServiceImpl': Autowiring of fields
failed; nested exception is
org.springframework.beans.factory.BeanCreationException: Could not
autowire field: private pablo.server.PessoaService pablo.
server.GreetingServiceImpl.pessoaService; nested exception is
org.springframework.beans.factory.BeanCreationException: Error
creating bean with name 'pessoaServiceImpl': Autowiring of fields
failed; nested exception is
org.springframework.beans.factory.BeanCreationException: Could not
autowire field : private pablo.server.PessoaDao
pablo.server.PessoaServiceImpl.pessoaDao; nested exception is
org.springframework.beans.factory.BeanCreationException: Error
creating bean with name 'pessoaDaoImpl' defined in file [C: \ pablo \
development \ eclipseGWT \ workspace \ gwtApp \ war \ WEB-INF \
classes \ pablo \ server \ PessoaDaoImpl.class]: Invocation of init
method failed; nested exception is java.lang.IllegalArgumentException:
'DataSource' or 'jdbcTemplate' is required
at
org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessAfterInstantiation
(AutowiredAnnotationBeanPostProcessor.java: 243)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean
(AbstractAutowireCapableBeanFactory.java: 959)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean
(AbstractAutowireCapableBeanFactory.java: 472)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory
$ 1.run (AbstractAutowireCapableBeanFactory.java: 409)
at java.security.AccessController.doPrivileged (Native Method)
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