springmvc在非controller里使用@Autowired失败

kkli 发布于 2014/09/04 11:00
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如题,这是自定义标签

public class FormatTimeTaglib extends BodyTagSupport {

	@Autowired
	private UserBiz uBiz;
	
	// serialVersionUID:{描述属性}
	private static final long serialVersionUID = -5465406084026930958L;
	
	private String time;
	
	@Override
	public int doStartTag() throws JspException {
		if(NullUtils.stringIsNull(time)){
			return SKIP_BODY;
		}else{
			System.out.println("############uBiz : "+(uBiz==null));
			
			return EVAL_BODY_INCLUDE;
		}
	}



UserBiz
public interface UserBiz extends GenericDao<User>{
	
	public boolean user_exists(final String email,final String pwd);
	
}



UserBizImpl
@Service
@Transactional
public class UserBizImpl extends GenericDaoImpl<User> implements UserBiz {
	
	@Resource UserTimelineBiz utlBiz;
	@Resource UserMedalBiz umBiz;
	@Resource MedalBiz medalBiz;

	@Override
	public boolean user_exists(String email, String pwd) {
		...
	}
}



GenericDao
public interface GenericDao<T> {
    private void save();
}



GenericDaoImpl
@Transactional
public abstract class GenericDaoImpl<T> implements GenericDao<T>{
	protected Class<T> entityClass = GenericsUtils.getSuperClassGenricType(this.getClass());
	@PersistenceContext protected EntityManager em;
	
	public void save(){
		...
	}
|



beans.xml
<?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:aop="http://www.springframework.org/schema/aop"
	xmlns:tx="http://www.springframework.org/schema/tx" xmlns:mvc="http://www.springframework.org/schema/mvc"
	xmlns:context="http://www.springframework.org/schema/context"
	xsi:schemaLocation="
        http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/tx
        http://www.springframework.org/schema/tx/spring-tx.xsd
        http://www.springframework.org/schema/aop
        http://www.springframework.org/schema/aop/spring-aop.xsd
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context-4.0.xsd
        http://www.springframework.org/schema/mvc
        http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">
<context:component-scan base-package="com.kk" />
	<!-- 必须要加 -->
	<mvc:annotation-driven />
	<mvc:default-servlet-handler />
	<mvc:resources location="/resources/" mapping="/resources/**" />
	
	<context:annotation-config />

	<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource"
		init-method="init" destroy-method="close">
		<!-- 驱动名称 -->
		<property name="DriverClassName" value="com.mysql.jdbc.Driver" />

		<!-- 基本属性 url、user、password -->
		<property name="url"
			value="jdbc:mysql://localhost:3306/test?useUnicode=true&amp;characterEncoding=UTF-8" />
		<property name="username" value="root" />
		<property name="password" value="root" />

		<!-- 配置初始化大小、最小、最大 -->
		<property name="initialSize" value="1" />
		<property name="minIdle" value="1" />
		<property name="maxActive" value="20" />

		<!-- 配置获取连接等待超时的时间 -->
		<property name="maxWait" value="60000" />

		<!-- 配置间隔多久才进行一次检测,检测需要关闭的空闲连接,单位是毫秒 -->
		<property name="timeBetweenEvictionRunsMillis" value="60000" />

		<!-- 配置一个连接在池中最小生存的时间,单位是毫秒 -->
		<property name="minEvictableIdleTimeMillis" value="300000" />

		<property name="validationQuery" value="SELECT 'x'" />
		<property name="testWhileIdle" value="true" />
		<property name="testOnBorrow" value="false" />
		<property name="testOnReturn" value="false" />

		<!-- 打开PSCache,并且指定每个连接上PSCache的大小 -->
		<property name="poolPreparedStatements" value="true" />
		<property name="maxPoolPreparedStatementPerConnectionSize"
			value="20" />

		<!-- 配置监控统计拦截的filters,去掉后监控界面sql无法统计 -->
		<property name="filters" value="stat" />
	</bean>

	<!-- JPA实体工厂配置 -->
	<bean id="entityManagerFactory"
		class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
		<property name="dataSource" ref="dataSource" />
		<!-- 扫描实体路径 -->
		<property name="packagesToScan" value="com.kk.entity" />
		<property name="jpaVendorAdapter">
			<bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
				<property name="showSql" value="true" />
			</bean>
		</property>
		<property name="jpaProperties">
			<props>
				<!--设置外连接抓取树的最大深度 -->
				<prop key="hibernate.max_fetch_depth">3</prop>
				<prop key="hibernate.jdbc.fetch_size">18</prop>
				<prop key="hibernate.jdbc.batch_size">10</prop>
				<!-- 自动建表类型 validate|create|create-drop|update -->
				<prop key="hibernate.hbm2ddl.auto">update</prop>
				<!-- 是否显示SQL -->
				<prop key="hibernate.show_sql">true</prop>
				<!-- 显示SQL是否格式化 -->
				<prop key="hibernate.format_sql">false</prop>
				<!-- 关闭二级缓存 -->
				<prop key="hibernate.cache.provider_class">org.hibernate.cache.NoCacheProvider</prop>

			</props>
		</property>
	</bean>

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

	<!-- 事务 -->
	<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager"
		lazy-init="true">
		<property name="entityManagerFactory" ref="entityManagerFactory" />
	</bean>

	<tx:annotation-driven transaction-manager="transactionManager" />

	<!-- 对模型视图名称的解析,即在模型视图名称添加前后缀,在requestmapping输入的地址后自动调用该类进行视图解析 -->
	<bean id="viewResolver"
		class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<property name="viewClass"
			value="org.springframework.web.servlet.view.JstlView" />
		<property name="prefix" value="/WEB-INF/" />
		<property name="suffix" value=".jsp"></property>
	</bean>

	<!-- annotation默认的方法映射适配器 -->
	<bean id="handlerMapping"
		class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping" />
	<bean id="handlerAdapter"
		class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" />

	<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"/>


</beans>



web.xml
<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">
  <display-name>question</display-name>
  
  	<!-- logback  
	<context-param>  
	    <param-name>logbackConfigLocation</param-name>  
	    <param-value>classpath:logback.xml</param-value>  
	</context-param> -->  
	
	<!-- encoding -->
	<filter>  
	    <filter-name>CharacterEncodingFilter</filter-name>  
	    <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>  
	    <init-param>  
	        <param-name>encoding</param-name>  
	        <param-value>UTF-8</param-value>
	    </init-param>
	    <init-param>
	    	<param-name>forceEncoding</param-name>
	    	<param-value>true</param-value>
	    </init-param>  
	</filter>  
	<filter-mapping>  
	    <filter-name>CharacterEncodingFilter</filter-name>  
	    <url-pattern>/*</url-pattern>  
	</filter-mapping> 
	
	
	<!-- <listener>
	    <listener-class>ch.qos.logback.ext.spring.web.LogbackConfigListener</listener-class>  
	</listener>  
   -->
  	<!-- Spring view分发器 -->  
    <servlet>  
        <servlet-name>dispatcher</servlet-name>  
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>  
        <init-param>  
            <param-name>contextConfigLocation</param-name>  
            <param-value>classpath:beans.xml</param-value>  
        </init-param>  
        <load-on-startup>1</load-on-startup>  
    </servlet>  
    <servlet-mapping>  
        <servlet-name>dispatcher</servlet-name>  
        <url-pattern>/</url-pattern>  
    </servlet-mapping>
    
</web-app>



求高手帮忙啊

@红薯 红薯大哥有空帮忙看下吧 谢谢了




加载中
0
vidy_tu
vidy_tu

自定义Tag都不是托管bean,怎么会自动注入。用WebApplicationContext context=pageContext.getServletContext().get(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE);UserBiz  biz = context.getBean("");去拿吧

kkli
kkli
这个会不会很消耗资源啊
0
sxgkwei
sxgkwei
tag木有受spring管理。
kkli
kkli
嗯 ,知道了
0
ForEleven
ForEleven
JSP标签里面注入业务bean,这思路。。。
kkli
kkli
回复 @ForEleven : 好的 ,我试试
ForEleven
ForEleven
回复 @kkli : 需要传入的时间,应该作为一个变量
kkli
kkli
我之前的同事这样写过,当时他这样写就可以,当时的业务是用自定义标签获取传入时间和获取服务器时间做比对
0
平安北京
就不应该这样写的
kkli
kkli
我是看之前有同事这样写的
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