刚学注解,出现错误,求解释

Question

strut2的action里面:
[code="java"]
@Namespace("/acctuser")
@Results( { @Result(name = CrudActionSupport.OK, location = "acctuser",type="chain") })
@Component("acctuser")
@Scope("prototype")
@SuppressWarnings("serial")
public class AcctuserAction extends CrudActionSupport {

@Autowired
private IAcctUserService iAcctUserService;

[/code]
service里面：
[code="java"]
@Service("iAcctUserService")
@Transactional
public class AcctUserService implements IAcctUserService{

@Autowired
private IAcctUserDao iAcctUserDao;

[/code]
dao里面：
[code="java"]
@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;
}

[/code]
basedao：
[code="java"]
public class BaseDao {
@Autowired
public JdbcTemplate jdbcTemplate;
[/code]
application.xml里面
[code="java"]





classpath*:/util.properties

<!-- 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>

[/code]

Answer 1

[quote]有注解了还需要有get和set方法吗? [/quote]
你这种情况是需要的，其实注解的底层也是通过你的标识，反射出实现类，然后调用set方法注入进去的，你试试就知道了。