刚学注解,遇到问题,求解释

[strjiang]

strut2的action里面:

@Namespace("/acctuser")
@Results( { @Result(name = CrudActionSupport.OK, location = "acctuser",type="chain") })
@Component("acctuser")
@Scope("prototype")
@SuppressWarnings("serial")
public class AcctuserAction extends CrudActionSupport<AcctUser> {

	@Autowired
	private IAcctUserService iAcctUserService;

service里面：

@Service("iAcctUserService")
@Transactional
public class AcctUserService implements IAcctUserService{
	
	@Autowired
	private IAcctUserDao iAcctUserDao;

dao里面：

@Repository("iAcctUserDao")
public class AcctUserDao extends BaseDao implements IAcctUserDao{

	public boolean login(String uname, String upass) {
		String sql = "select count(*) from acct_user where login_name='"
				+ uname + "' and password='" + upass + "'";
		int count=jdbcTemplate.queryForInt(sql);
		if(count>0){
			return true;
		}
		return false;
	}

basedao：

public class BaseDao {
	@Autowired
	public JdbcTemplate jdbcTemplate;

application.xml里面

<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>
				<value>classpath*:/util.properties</value>
			</list>
		</property>
	</bean>

	<!-- 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.jw" />

	<!-- 数据源配置,使用应用内的DBCP数据库连接池 -->
	<bean name="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
		destroy-method="close">
		<property name="driverClassName" value="${mysql.driver}" />
		<property name="url" value="${mysql.url}" />
		<property name="username" value="${mysql.username}" />
		<property name="password" value="${mysql.password}"></property>
	</bean>
	<!-- 使用annotation定义事务 -->
	<tx:annotation-driven proxy-target-class="true" />

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

action里面的那个iAcctUserService总是为空

[丶蒙圈丶]

[Quote=引用 5 楼 zijie885 的回复:]
引用 3 楼 wen691 的回复:
application.xml 里面加上这句看看

<context:annotation-config/>

action中有iAcctUserService 的getter(),setter()方法吧


++
[/Quote]

正解

[剑神一笑]

xml头文件中加入 default-autowire="byName"

[strjiang]

[Quote=引用 1 楼 cbxjj 的回复:]
xml头文件中加入 default-autowire="byName"
[/Quote]
加入了也是一样的

[wen691]

application.xml 里面加上这句看看

<context:annotation-config/>

action中有iAcctUserService 的getter(),setter()方法吧

[wen691]

application.xml 里面加上这句看看

<context:annotation-config/>


action中

@Autowired
private IAcctUserService iAcctUserService;

改成：
private IAcctUserService iAcctUserService;

public IAcctUserService getIAcctUserService(){
return iAcctUserService;
}

@Autowired
public IAcctUserService setIAcctUserService(IAcctUserService iAcctUserService){
this.iAcctUserService=iAcctUserService;
}

[一天zijie一夜]

[Quote=引用 3 楼 wen691 的回复:]
application.xml 里面加上这句看看

<context:annotation-config/>

action中有iAcctUserService 的getter(),setter()方法吧
[/Quote]

++