Spring Framework IllegalArgumentException 'dataSource' 或 'jdbcTemplate' 是必需的 JAVA答案

【问题标题】：Spring Framework IllegalArgumentException 'dataSource' or 'jdbcTemplate' is required JAVASpring Framework IllegalArgumentException 'dataSource' 或 'jdbcTemplate' 是必需的 JAVA
【发布时间】：2016-03-17 12:14:39
【问题描述】：

我正在尝试编写配置了注释的 Spring 应用程序。我已经定义了一个 dataSource 和 jdbcTemplate 并且我确信 spring 会初始化它们（当评论它们时我有一个异常告诉我这个 bean 没有初始化）。我不知道为什么在初始化 bean 时会出现此异常。我将复制xml、dao类和stacktrace。

xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc"
    xsi:schemaLocation="
        http://www.springframework.org/schema/beans     
        http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/context 
        http://www.springframework.org/schema/context/spring-context.xsd
        http://www.springframework.org/schema/mvc
        http://www.springframework.org/schema/mvc/spring-mvc.xsd">

    <bean id="dataSource"
        class="org.springframework.jdbc.datasource.DriverManagerDataSource">
        <property name="driverClassName" value="org.postgresql.Driver" />
        <property name="url" value="jdbc:postgresql://localhost:5432/test" />
        <property name="username" value="root" />
        <property name="password" value="root" />
    </bean>

    <bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
        <constructor-arg>
            <ref bean="dataSource" />
        </constructor-arg>
    </bean>

</beans>

道

@Repository
public class DomainsDao extends JdbcDaoSupport {

    @Autowired
    private MessageSourceAccessor msa;

    @Autowired
    private JdbcTemplate jdbcTemplate;

    public List<Domain> getInactiveDomains() {
        return jdbcTemplate.query(msa.getMessage("sql.pass.domain.select_inactive"), new DomainRowMapper());
    }
public int getDomainId(String name) {
        String sql = msa.getMessage("sql.pass.domain.select_by_name");
        Object[] args = new Object[] { name };
        return jdbcTemplate.queryForObject(sql, args, Integer.class);
    }
}

堆栈跟踪

java.lang.IllegalArgumentException: 'dataSource' or 'jdbcTemplate' is required
    org.springframework.jdbc.core.support.JdbcDaoSupport.checkDaoConfig(JdbcDaoSupport.java:111)
    org.springframework.dao.support.DaoSupport.afterPropertiesSet(DaoSupport.java:44)
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1631)
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1568)
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539)
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476)
    org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:303)
    org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
    org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:299)
    org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
    org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1120)
    org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1044)
    org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:942)
    org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:533)
    org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88)
    org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:331)
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1208)
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:537)
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476)
    org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:303)
    org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
    org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:299)
    org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
    org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1120)
    org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1044)
    org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:942)
    org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:533)
    org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88)
    org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:331)
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1208)
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:537)
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476)
    org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:303)
    org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
    org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:299)
    org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
    org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:755)
    org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:762)
    org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:480)
    org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:667)
    org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:633)
    org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:681)
    org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:552)
    org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:493)
    org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:136)
    javax.servlet.GenericServlet.init(GenericServlet.java:158)
    org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
    org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
    org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616)
    org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:521)
    org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1096)
    org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:674)
    org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1500)
    org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1456)
    java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    java.lang.Thread.run(Thread.java:745)

编辑我将添加我的所有配置

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
    id="WebApp_ID" version="2.5">
    <description>
    SaaS Admin
  </description>

    <display-name>SaaS Admin</display-name>

    <!-- <error-page> <error-code>404</error-code> <location>/error404.jsp</location> 
        </error-page> -->

    <servlet>
        <servlet-name>Spring MVC Dispatcher Servlet</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>
                /WEB-INF/conf/app-config.xml
            </param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>

app-config.xml

<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"
    xmlns:task="http://www.springframework.org/schema/task"
    xsi:schemaLocation="
    http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
    http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
    http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-3.0.xsd">

    <!-- Scanning package with configuration files -->

    <context:component-scan base-package="bg.abv.saas.admin.config" />

    <!-- Application Message Bundle -->

    <bean id="messageSource"
        class="org.springframework.context.support.ReloadableResourceBundleMessageSource">
        <property name="basenames">
            <list>
                <value>WEB-INF/props/configure</value>
                <value>WEB-INF/props/sql</value>
                <value>WEB-INF/props/strings</value>
                <value>WEB-INF/props/log4j</value>
            </list>
        </property>
        <property name="defaultEncoding" value="UTF-8" />
        <property name="cacheSeconds" value="60" />
    </bean>

    <bean id="msa"
        class="org.springframework.context.support.MessageSourceAccessor">
        <constructor-arg>
            <ref bean="messageSource" />
        </constructor-arg>
    </bean>

WebServletApplicationInitializer

@EnableWebMvc
@Configuration
@ComponentScan("bg.abv")
@ImportResource(value = { "/WEB-INF/conf/data-source.xml" })
public class WebServletApplicationInitializer extends WebMvcConfigurerAdapter {

    @Bean
    public InternalResourceViewResolver viewResolver() {
        InternalResourceViewResolver viewResolver = new InternalResourceViewResolver();
        viewResolver.setViewClass(JstlView.class);
        viewResolver.setPrefix("/WEB-INF/views/jsp/");
        viewResolver.setSuffix(".jsp");
        return viewResolver;
    }

    @Override
    public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) {
        configurer.enable();
    }

    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        registry.addResourceHandler("/resources/**").addResourceLocations("/WEB-INF/resources/*");
    }

data-source.xml这个文件的内容是带有dataSource和jdbcTemplate beans的xml文件。

【问题讨论】：

您是否设置了任何东西来加载您的 application.xml？（外汇。在 web.xml 中）。您说您的应用程序是基于注释的，那么 spring 应该如何知道从任何 .xml 文件中初始化任何内容？
@Martin Hansen 我编辑了我的问题。

标签： java spring spring-mvc

【解决方案1】：

我认为您应该在 DomainsDao 中删除 jdbcTemplate 的自动装配，并改为注入您的数据源。然后调用org.springframework.jdbc.core.support.JdbcDaoSupport#getJdbcTemplate方法获取jdbcTemplate。

示例：

@Repository
public class DomainsDao extends JdbcDaoSupport {

    @Autowired
    private MessageSourceAccessor msa;

    @Autowired
    public void setDs(DataSource dataSource) {
         setDataSource(dataSource);
    }

    public List<Domain> getInactiveDomains() {
        return getJdbcTemplate().query(msa.getMessage("sql.pass.domain.select_inactive"), new DomainRowMapper());
    }
    public int getDomainId(String name) {
        String sql = msa.getMessage("sql.pass.domain.select_by_name");
        Object[] args = new Object[] { name };
        return getJdbcTemplate().queryForObject(sql, args, Integer.class);
    }
}

如果您仍想注入自己的jdbcTemplate，则需要类似的方法：

@Repository
public class DomainsDao extends JdbcDaoSupport {

    @Autowired
    private MessageSourceAccessor msa;

    @Autowired
    public void setJT(JdbcTemplate jdbcTemplate) {
         setJdbcTemplate(jdbcTemplate);
    }

    public List<Domain> getInactiveDomains() {
        return getJdbcTemplate().query(msa.getMessage("sql.pass.domain.select_inactive"), new DomainRowMapper());
    }
    public int getDomainId(String name) {
        String sql = msa.getMessage("sql.pass.domain.select_by_name");
        Object[] args = new Object[] { name };
        return getJdbcTemplate().queryForObject(sql, args, Integer.class);
    }
}

【讨论】：

这可行，但现在我有这个异常：java.lang.NoSuchMethodError: org.springframework.core.annotation.AnnotatedElementUtils.findMergedAnnotation(Ljava/lang/reflect/AnnotatedElement;Ljava/lang/Class;) ljava/lang/annotation/Annotation;

【解决方案2】：

问题是您继承的 JdbcDaoSupport 类已经有一个需要设置的 jdbcTemplate 属性。 JdbcDaoSupport 检查您是否在其 afterPropertiesSet 方法中提供了 jdbcTemplate 或 dataSource 属性。但是，您声明并注入您自己的 jdbcTemplate 意味着 DomainsDao 有两个 jdbcTemplate 属性（一个您声明的加上一个从 JdbcDaoSupport 继承）

您可以通过从您的 cals 声明中删除 extends JdbcDaoSupport 部分来解决此问题。

或者，如果您真的想从 JdbcDaoSupport 继承，请按如下方式更改您的类

@Repository
public class DomainsDao extends JdbcDaoSupport {

    @Autowired
    private MessageSourceAccessor msa;

    @Autowired
    public DomainsDao (JdbcTemplate jdbcTemplate){
       setJdbcTemplate(jdbcTemplate);
    }

    public List<Domain> getInactiveDomains() {
        return getJdbcTemplate().query(msa.getMessage("sql.pass.domain.select_inactive"), new DomainRowMapper());
    }
public int getDomainId(String name) {
        String sql = msa.getMessage("sql.pass.domain.select_by_name");
        Object[] args = new Object[] { name };
        return getJdbcTemplate.queryForObject(sql, args, Integer.class);
    }
}

【讨论】：

这可行，但现在我有这个异常：java.lang.NoSuchMethodError: org.springframework.core.annotation.AnnotatedElementUtils.findMergedAnnotation(Ljava/lang/reflect/AnnotatedElement;Ljava/lang/Class;) ljava/lang/annotation/Annotation;

【解决方案3】：

你可以试试这个，

<bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
    <property name="dataSource" ref="dataSource" />
</bean>

【讨论】：

@RockOrDead: 你添加了吗？