Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.cache.annotation

引用中提到了一个错误创建dataSource的问题，错误信息是java.lang.NullPointerException。正确的解决方案是检查错误的写法并进行修正。引用中也提到了一个创建transactionManager的错误，错误信息是Failed to convert property value of type ‘java.lang.String’ to required type ‘javax.sql.DataSource’ for property ‘dataSource’，原因是没有找到匹配的编辑器或转换策略。解决方法是更改dataSource的引用类型为ref而不是value。以下是正确的写法：

<bean id="dataSource" class="com.example.DataSource" />

<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
    <property name="dataSource" ref="dataSource"/>
</bean>

这样就能正确创建dataSource和transactionManager的bean了。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
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