spring依赖注入问题

Question

这是类代码：
public class FoodAction extends ActionSupport {
private FoodBiz fb;
public String execute()throws Exception{
List<Food> foods=getFb().getAllFood();
for (int i = 0; i < foods.size(); i++) {
System.out.println(foods.get(i).getName());
}
return SUCCESS;
}
public void setFb(FoodBiz fb) {
this.fb = fb;
}
public FoodBiz getFb() {
return fb;
}
部分配置文件：
<!-- biz -->
<bean id="FoodBiz" class="biz.impl.FoodBizImpl">
<property name="fd">
<ref bean="FoodDao" />
</property>
</bean>
<!-- action -->
<bean name="food" class="action.FoodAction">
<property name="fb">
<ref bean="FoodBiz"/>
</property>
</bean>
fb为null

Answer 1

检查下有没有struts和spring集成的jar

Answer 2

检查struts的配置文件，保证struts和spring已经整合，确保action是从spring容器中取得，而不是由struts新创建

Answer 3

<!-- biz -->
<bean id="FoodBiz" class="biz.impl.FoodBizImpl">
<property name="fd">
<ref bean="FoodDao" />
</property>
</bean>
看看这里<ref bean="FoodDao" />的FoodDao有配置了吗？

Answer 4

<!-- biz -->
<bean id="FoodBiz" class="biz.impl.FoodBizImpl">
<property name="fd">
<ref bean="FoodDao" />
</property>
</bean>

Answer 5

List<Food> foods=getFb().getAllFood(); 改为 List<Food> foods=fb.getAllFood();配置文件：FoodDao配置了吗

Answer 6

配置应该没问题，我想应该是jar包不兼容，不太确定ssh都需要那些包

Answer 7

是否使用set注入，用getFb方法干嘛，直接用this.fb.getAllFoods();

Answer 8

目前手工添加的jar包：
antlr-2.7.6rc1.jar
asm.jar
asm-attrs.jar
c3p0-0.9.0.jar
cglib-2.1.3.jar
com.springsource.com.mchange.v2.c3p0-0.9.1.2.jar
com.springsource.net.sf.cglib-2.2.0.jar
com.springsource.org.aopalliance-1.0.0.jar
com.springsource.org.apache.commons.fileupload-1.2.0.jar
com.springsource.org.apache.commons.httpclient-3.1.0.jar
com.springsource.org.apache.commons.lang-2.4.0.jar
com.springsource.org.apache.commons.logging-1.1.1.jar
com.springsource.org.apache.commons.pool-1.5.3.jar
com.springsource.org.apache.log4j-1.2.15.jar
com.springsource.org.aspectj.weaver-1.6.8.RELEASE.jar
com.springsource.org.codehaus.jackson.mapper-1.0.0.jar
commons-collections-2.1.1.jar
commons-dbcp.jar
commons-fileupload-1.2.1.jar
commons-io-1.3.2.jar
commons-logging-1.0.4.jar
concurrent-1.3.2.jar
connector.jar
dom4j-1.6.1.jar
ehcache-1.1.jar
freeer-2.3.15.jar
hibernate3.jar
jaas.jar
jacc-1_0-fr.jar
jaxen-1.1-beta-7.jar
jboss-cache.jar
jboss-common.jar
jboss-jmx.jar
jboss-system.jar
jdbc2_0-stdext.jar
jgroups-2.2.8.jar
jotm.jar
jta.jar
log4j-1.2.11.jar
ognl-2.7.3.jar
org.springframework.aop-3.0.1.RELEASE-A.jar
org.springframework.asm-3.0.1.RELEASE-A.jar
org.springframework.aspects-3.0.1.RELEASE-A.jar
org.springframework.beans-3.0.1.RELEASE-A.jar
org.springframework.context-3.0.1.RELEASE-A.jar
org.springframework.core-3.0.1.RELEASE-A.jar
org.springframework.expression-3.0.1.RELEASE-A.jar
org.springframework.instrument.tomcat-3.0.1.RELEASE-A.jar
org.springframework.instrument-3.0.1.RELEASE-A.jar
org.springframework.jdbc-3.0.1.RELEASE-A.jar
org.springframework.orm-3.0.1.RELEASE-A.jar
org.springframework.oxm-3.0.1.RELEASE-A.jar
org.springframework.transaction-3.0.1.RELEASE-A.jar
org.springframework.web.portlet-3.0.1.RELEASE-A.jar
org.springframework.web.servlet-3.0.1.RELEASE-A.jar
org.springframework.web.struts-3.0.1.RELEASE-A.jar
org.springframework.web-3.0.1.RELEASE-A.jar
oscache-2.1.jar
persistence.jar
proxool-0.8.3.jar
sqljdbc.jar
struts2-core-2.1.8.1.jar
struts2-spring-plugin-2.1.8.1.jar
swarmcache-1.0rc2.jar
xapool.jar
xerces-2.6.2.jar
xml-apis.jar
xwork-core-2.1.6.jar
·
································
·
出现问题了
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;报错

Answer 9

目前手工添加的jar包：
antlr-2.7.6rc1.jar
asm.jar
asm-attrs.jar
c3p0-0.9.0.jar
cglib-2.1.3.jar
com.springsource.com.mchange.v2.c3p0-0.9.1.2.jar
com.springsource.net.sf.cglib-2.2.0.jar
com.springsource.org.aopalliance-1.0.0.jar
com.springsource.org.apache.commons.fileupload-1.2.0.jar
com.springsource.org.apache.commons.httpclient-3.1.0.jar
com.springsource.org.apache.commons.lang-2.4.0.jar
com.springsource.org.apache.commons.logging-1.1.1.jar
com.springsource.org.apache.commons.pool-1.5.3.jar
com.springsource.org.apache.log4j-1.2.15.jar
com.springsource.org.aspectj.weaver-1.6.8.RELEASE.jar
com.springsource.org.codehaus.jackson.mapper-1.0.0.jar
commons-collections-2.1.1.jar
commons-dbcp.jar
commons-fileupload-1.2.1.jar
commons-io-1.3.2.jar
commons-logging-1.0.4.jar
concurrent-1.3.2.jar
connector.jar
dom4j-1.6.1.jar
ehcache-1.1.jar
freeer-2.3.15.jar
hibernate3.jar
jaas.jar
jacc-1_0-fr.jar
jaxen-1.1-beta-7.jar
jboss-cache.jar
jboss-common.jar
jboss-jmx.jar
jboss-system.jar
jdbc2_0-stdext.jar
jgroups-2.2.8.jar
jotm.jar
jta.jar
log4j-1.2.11.jar
ognl-2.7.3.jar
org.springframework.aop-3.0.1.RELEASE-A.jar
org.springframework.asm-3.0.1.RELEASE-A.jar
org.springframework.aspects-3.0.1.RELEASE-A.jar
org.springframework.beans-3.0.1.RELEASE-A.jar
org.springframework.context-3.0.1.RELEASE-A.jar
org.springframework.core-3.0.1.RELEASE-A.jar
org.springframework.expression-3.0.1.RELEASE-A.jar
org.springframework.instrument.tomcat-3.0.1.RELEASE-A.jar
org.springframework.instrument-3.0.1.RELEASE-A.jar
org.springframework.jdbc-3.0.1.RELEASE-A.jar
org.springframework.orm-3.0.1.RELEASE-A.jar
org.springframework.oxm-3.0.1.RELEASE-A.jar
org.springframework.transaction-3.0.1.RELEASE-A.jar
org.springframework.web.portlet-3.0.1.RELEASE-A.jar
org.springframework.web.servlet-3.0.1.RELEASE-A.jar
org.springframework.web.struts-3.0.1.RELEASE-A.jar
org.springframework.web-3.0.1.RELEASE-A.jar
oscache-2.1.jar
persistence.jar
proxool-0.8.3.jar
sqljdbc.jar
struts2-core-2.1.8.1.jar
struts2-spring-plugin-2.1.8.1.jar
swarmcache-1.0rc2.jar
xapool.jar
xerces-2.6.2.jar
xml-apis.jar
xwork-core-2.1.6.jar
·
································
·
出现问题了
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;报错

Answer 10

看看这里<ref bean="FoodDao" />的FoodDao有配置了吗？