spring3 注解注入为空

Question

springjavabean

Answer 1

自己定下 ，在Action中调用的时候loginBo为空，后台没有报错，自己搭的框架玩，没看出来时哪出错了
@Autowired
public LoginBo loginBo;详细的application配置文件<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:dwr="http://www.directwebremoting.org/schema/spring-dwr"
xsi:schemaLocation="http://www.springframework.org/schema/beans   
    http://www.springframework.org/schema/beans/spring-beans-3.2.xsd  
    http://www.springframework.org/schema/context   
    http://www.springframework.org/schema/context/spring-context-3.2.xsd  
    http://www.springframework.org/schema/aop  
    http://www.springframework.org/schema/aop/spring-aop-3.2.xsd  
    http://www.springframework.org/schema/tx  
    http://www.springframework.org/schema/tx/spring-tx-3.2.xsd">
<!-- 使用annotation 自动注册bean,并保证@Required,@Autowired的属性被注入 -->
<context:component-scan base-package="com.bo,com.dao" />
<!-- 事务管理器配置,单数据源事务 -->
<bean id="transactionManager"
class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory" />
</bean>
<!-- 使用annotation定义事务 -->
<tx:annotation-driven transaction-manager="transactionManager"
proxy-target-class="true" />
<!-- 设置事务工厂 -->
<bean id="sessionFactory"
class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource">
<ref bean="dataSource" />
</property>
<property name="namingStrategy">
<bean class="org.hibernate.cfg.ImprovedNamingStrategy" />
</property>
<property name="hibernateProperties">
<props>
<!-- 命名规则 My_NAME->MyName -->
<prop key="hibernate.ejb.naming_strategy">org.hibernate.cfg.ImprovedNamingStrategy</prop>
<prop key="hibernate.dialect">${hibernate.dialect}</prop>
<prop key="hibernate.max_fetch_depth">3</prop>
<!--prop key="hibernate.hbm2ddl.auto">update</prop-->
<prop key="hibernate.jdbc.fetch_size">18</prop>
<prop key="hibernate.jdbc.batch_size">10</prop>
<prop key="hibernate.show_sql">${hibernate.show_sql}</prop>
<prop key="hibernate.format_sql">${hibernate.format_sql}</prop>
<!-- jsr303验证模式 因为其要么验证 要么不验证 不能按照规则走 所以此处禁用 -->
                <!-- #http://docs.jboss.org/hibernate/entitymanager/3.6/reference/en/html/configuration.html -->
<prop key="javax.persistence.validation.mode">none</prop>
<!-- 只扫描class文件，不扫描hbm，默认两个都搜索 -->
                <prop key="hibernate.archive.autodetection">class</prop>
                <!-- 不检查@NamedQuery -->
                <prop key="hibernate.query.startup_check">false</prop>
                <!-- 禁用二级缓存 -->
                <!--prop key="hibernate.cache.use_second_level_cache">false</prop>
                <prop key="hibernate.cache.use_query_cache">false</prop-->
                <!-- 使用 memcached -->
                <!-- 设置缓存类 
                <prop key="hibernate.cache.region.factory_class">com.ces.xarch.plugins.memcache.MemcacheRegionFactory</prop>
                <prop key="hibernate.cache.provider_class">com.googlecode.hibernate.memcached.MemcachedCacheProvider</prop>-->
                <!--prop key="hibernate.memcached.memcacheClientFactory">com.googlecode.hibernate.memcached.dangamemcached.DangaMemcacheClientFactory</prop-->
                <!-- 设置memcache缓存服务器端口
                <prop key="hibernate.memcached.servers">192.168.40.128:11211</prop> --> 
                <!-- 设置二级缓存的前缀名称
<prop key="hibernate.cache.region_prefix">quality.cache.ehcache</prop> -->  
                <!-- 是否缓存查询结果
                <prop key="hibernate.cache.use_query_cache">true</prop> -->
                <!-- 开启二级缓存 
                <prop key="hibernate.cache.use_second_level_cache">true</prop>-->
                <!-- 否使用结构化的方式缓存对象  
<prop key="hibernate.cache.use_structured_entries">true</prop>-->
</props>
</property>
</bean>
<!-- 定义受环境影响易变的变量 -->
<bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="systemPropertiesModeName" value="SYSTEM_PROPERTIES_MODE_OVERRIDE" />
<property name="ignoreResourceNotFound" value="true" />
<property name="locations">
<list>
<!-- 标准配置 -->
<value>/WEB-INF/classes/db_config.properties</value>
</list>
</property>
</bean>
<!-- 数据源配置,使用应用内的DBCP数据库连接池 -->
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
destroy-method="close">
<!-- Connection Info -->
<property name="driverClassName" value="${hibernate.connection.driver_class}" />
<property name="url" value="${hibernate.connection.url}" />
<property name="username" value="${hibernate.connection.username}" />
<property name="password" value="${hibernate.connection.password}" />

<!-- Connection Pooling Info -->
<property name="initialSize" value="10" />
<property name="maxActive" value="10" />
<property name="maxIdle" value="10" />
<property name="defaultAutoCommit" value="false" />
</bean>
</beans>  

Answer 2

为何不见你的SessionFactory 这个也需要注入。

Answer 3

注入了 在DAO层中注入的@Autowired 
public void setSessionFactoryOverride(SessionFactory sessionFactory) {
super.setSessionFactory(sessionFactory);
}这个不注入会报错，现在就是没报错 但是service就是没注入进去

Answer 4

Spring的基础jar 应该不是少jar吧

Answer 5

文件夹里面是基础的jar  jar应该是全的

Answer 6

commons-logging-1.1.1  jar
spring-context-support-3.0.4.RELEASE  jar

Answer 7

这两个jar有的

既然用的注解，那把<bean id="sessionFactory"
        class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
改成这样：
<bean id="sessionFactory"
class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">

Answer 8

用的hibernate4  之前在网上查过 hibernate4里面不用没有AnnotationSessionFactoryBean这个的，用的是我现在的配置

Answer 9

还是少了jar包，struts-spring-plugin~~！