Question

我确定我犯了一个简单的错误而且我已经找到了答案。基本上，我的war文件构建正常但是当我在Tomcat 7下部署它时，我得到了一个失败，因为注入JdbcTemplate失败了。我将在下面粘贴完整的例外。

我尝试将驱动程序jar放在这里：

../webapps/adddrop-1.0.0-SNAPSHOT/WEB-INF/lib

代码很简单：

@Autowired 
private JdbcTemplate jdbcTemplate;

在POM中是：

    <dependency>
        <groupId>com.oracle</groupId>
        <artifactId>ojdbc7</artifactId>
        <version>12.1.0.2</version>
    </dependency>

在application.properties中是：

# JWA Properties for JDBC/Oracle
spring.datasource.driverClassName=oracle.jdbc.driver.OracleDriver
spring.datasource.url=jdbc:oracle:thin:@stusys-qa-db-2.xxx.com:1523:abcqa2
spring.datasource.username=jxxxxx
spring.datasource.password=xxxxxxxx

当我尝试部署WAR时，这是一个例外：

    Jul 13, 2017 2:57:49 PM org.apache.catalina.core.StandardContext listenerStart
    SEVERE: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener
org.springframework.beans.factory.BeanCreationException: 
    Error creating bean with name 'org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping#0' defin
ed in URL [jar:file:/Applications/apache-tomcat-7.0.78/webapps/adddrop-1.0.214-SNAPSHOT/WEB-INF/lib/csf-common-legacy-2.0.51-20170713.011229-1.jar!/applicationContext-csf-comm
on.xml]: Initialization of bean failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'addDropLandingPageSelection
Controller': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private org.spr
ingframework.jdbc.core.JdbcTemplate edu.mit.addDrop.web.AddDropLandingPageSelectionController.jdbcTemplate; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No matching bean of type [org.springframework.jdbc.core.JdbcTemplate] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:527)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
        at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:294)
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:225)
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:291)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:585)
        at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:913)
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:464)
        at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:389)
        at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:294)
        at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:112)
        at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:5118)
        at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5634)
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
        at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:899)
        at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:875)
        at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:652)
        at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:1092)
        at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1984)

Answer 1

如果尚未配置数据源，例如：

@Bean
public DataSource dataSource() {
  DriverManagerDataSource ds = new DriverManagerDataSource();
  ds.setDriverClassName("org.h2.Driver");
  ds.setUrl("jdbc:h2:tcp://localhost/~/spitter");
  ds.setUsername("sa");
  ds.setPassword("");
  return ds;
}

并按如下方式配置jdbctemplate：

 @Bean
 public JdbcTemplate jdbcTemplate(DataSource dataSource) {
    return new JdbcTemplate(dataSource);
 }

Spring无法自动装配JdbcTemplate

1 个答案: