Spring框架IllegalArgumentException'；数据源'；或'；jdbc模板&x27；是JAVA所必需的_Java_Spring_Spring Mvc

Spring框架IllegalArgumentException'；数据源'；或'；jdbc模板&x27；是JAVA所必需的

java spring spring-mvc

Spring框架IllegalArgumentException'；数据源'；或'；jdbc模板&x27；是JAVA所必需的,java,spring,spring-mvc,Java,Spring,Spring Mvc,我正在尝试编写配置了注释的spring应用程序。我已经定义了一个数据源和jdbcTemplate，我确信spring会初始化它们（当对它们进行注释时，我有一个异常，它告诉我这个bean没有初始化）。我不知道为什么在初始化bean时会出现这种异常。我将复制xml、dao类和stacktrace xml <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema

我正在尝试编写配置了注释的spring应用程序。我已经定义了一个数据源和jdbcTemplate，我确信spring会初始化它们（当对它们进行注释时，我有一个异常，它告诉我这个bean没有初始化）。我不知道为什么在初始化bean时会出现这种异常。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>

<?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>

<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>

编辑我将添加所有配置

web.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>

<?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>

<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>

data source.xml此文件的内容是包含数据源和jdbcTemplate bean的xml文件。

您能试试这个吗

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

我认为您应该在

域DAO中放弃jdbcTemplate的自动连接，转而注入数据源。然后通过调用org.springframework.jdbc.core.support.JdbcDaoSupport#getJdbcTemplate
方法获取jdbcTemplate
例如：
@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);
    }
}

问题是您从中继承的JdbcDaoSupport类已经有了需要设置的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，您正在声明和注入自己的jdbcTemplate，这意味着DomainsDao有两个jdbcTemplate属性（一个是您声明的，另一个是从JdbcDaoSupport继承的）
您可以通过从calss声明中删除extends JdbcDaoSupport部分来解决这个问题
或者，如果您真的想从JdbcDaoSupport继承，则按如下所示更改您的类
@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);
    }
}

@存储库
公共类DomainsDao扩展了JDBCDAO支持{
@自动连线
私有消息源访问器msa；
@自动连线
公共域SDAO（JdbcTemplate JdbcTemplate）{
setJdbcTemplate（jdbcTemplate）；
}
公共列表getInactiveDomains（）{
返回getJdbcTemplate（）.query（msa.getMessage（“sql.pass.domain.select_inactive”），new DomainRowMapper（））；
}
public int getDomainId（字符串名称）{
字符串sql=msa.getMessage（“sql.pass.domain.select_by_name”）；
Object[]args=新对象[]{name}；
返回getJdbcTemplate.queryForObject（sql、args、Integer.class）；
}
}
是否设置了加载application.xml的内容？（fx.in web.xml）。你说你的应用程序是基于注释的，那么spring怎么知道从任何.xml文件初始化任何东西呢？@Martin Hansen我编辑了我的问题。@RockOrDead:你添加了这个吗？这很有效，但现在我有一个例外：java.lang.NoSuchMethodError:org.springframework.core.annotation.AnnotatedElementUtils.findMergedAnnotation（Ljava/lang/reflect/AnnotatedElement；Ljava/lang/Class；）Ljava/lang/annotation/annotation；这是有效的，但现在我有一个例外：java.lang.NoSuchMethodError:org.springframework.core.AnnotatedElementUtils.findMergerAnnotation（Ljava/lang/reflect/AnnotatedElement；Ljava/lang/Class；）Ljava/lang/annotation/annotation；
@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);
    }
}