springmvc怎么根据名字获得bean?

使用Autowired注解@Service
public class UserServiceImpl implements UserService {
//...
}
public class UserServiceTest extends BasicTestCase {    @Autowired
    private UserService userService;    @Test
    public void test() {
        //...
    }
}

先检查spring-servlet.xml和application-context.xml里扫描packet的时候是否都有扫描到如果没问题就在@Controller @Service后面加上(name="xxxBean") 然后再用spring的web工厂getBean就能取到

注解生成的Bean一般不会都是类名的首字母小写或者你也可以在注解后定义名字
@Resource(name = "jdbcTemplate")
public void setJdbcTemplate(JdbcTemplate jdbcTemplate) {
this.jdbcTemplate = jdbcTemplate;

不是在配置文件里用<bean/>标签配置的,
你把你找到的配置文件铁来看看

项目里用的。调用videoInfoService = SpringContextHolder.getBean("videoInfoService",
IVideoInfoService.class);
相关类package com.ustv.utils;
import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Service;
@Service
public class SpringContextHolder implements ApplicationContextAware {
    private static ApplicationContext applicationContext;    @Override
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        SpringContextHolder.applicationContext = applicationContext;
    }
    public static ApplicationContext getApplicationContext() {
        return applicationContext;
    }
    public static Object getBean(String beanName) {
        return applicationContext.getBean(beanName);
    }

    public static <T>T getBean(String beanName , Class<T>clazz) {
        return applicationContext.getBean(beanName , clazz);
    }
}

package net.hunau.xiangmu.aijun.module.system.dao.impl;import java.math.BigDecimal;
import java.util.Date;import net.hunau.xiangmu.aijun.module.system.server.dao.IEmpEntityDao;
import net.hunau.xiangmu.aijun.module.system.server.shared.domain.EmpEntity;import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations="classpath:application-context.xml")
public class EmpTest {
@Autowired
private IEmpEntityDao empEntityDao;

@Test
public void testInsert(){
EmpEntity record = new EmpEntity();
record.setDeptno(8L);
record.setComm(new BigDecimal("55"));
record.setDeptno(6L);
record.setHiredate(new Date());
empEntityDao.insertSelective(record);
}

@Test
public void testSelects(){
EmpEntity emp = empEntityDao.selectByPrimaryKey(new BigDecimal(7934));
System.out.println(emp.getDeptno());
}
}

楼主兄，兄弟没记错的话，应该可以spring的上下文，WebApplicationContext.getBean();可以获取到当前加载的bean哦

请教大神，是如何得到bean的，自己看不是很理解。在applicationContext.xml中有如下配置：
<context:component-scan base-package="com.niit">
<context:exclude-filter type="regex" expression="com.niit.controller.*"/>
</context:component-scan>在springServlet.xml文件中
<context:component-scan base-package="com.niit.controller" />
请问在java类中，怎么写可以得到需要的bean呢

jsp页面，ctx.getBean("advCallBackService");  这里是怎么得到的ApplicationContext ctx = WebApplicationContextUtils.getWebApplicationContext(getServletContext());
AdvCallBackService advCallBackService = (AdvCallBackService)ctx.getBean("advCallBackService");
AdvCallBackService   recvAdvAck = (AdvCallBackService)ctx.getBean("advCallBackService");

另外，在AdvCallBackService的实现类AdvCallBackServiceImpl中，有如下代码
@Service("advCallBackService")
public class AdvCallBackServiceImpl implements AdvCallBackService {
private static final Logger logger = LoggerFactory.getLogger(AdvCallBackServiceImpl.class); @Resource
private CasAdvCallDao advCallDao; @Resource
private CasCallSourceDao callSourceDao; @Resource
private CallSourceService callSourceService;请问下是什么意思呢

调试易

springmvc怎么根据名字获得bean?

解决方案 »