详解详解spring+springmvc+mybatis整合注解整合注解
本篇文章主要介绍了详解spring+springmvc+mybatis整合注解,详细的介绍了ssm框架的使用,具有一定的参考
价值,有兴趣的可以了解一下
每天记录一点点,慢慢的成长,今天我们学习了ssm,这是我自己总结的笔记,大神勿喷!谢谢,主要代码!! !
spring&springmvc&mybatis整合(注解)
1.jar包
2.引入web.xml文件
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<servlet>
<servlet-name>springmvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springmvc.xml</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>springmvc</servlet-name>
<url-pattern>*.action</url-pattern>
</servlet-mapping>
3.创建实体类
4.引入一个(类名)dao.xml
<update id="update" parameterType="accounting" >
update accounting set money=#{money} where name=#{name}
</update>
<select id="findMoneyByName" parameterType="string" resultType="accounting">
select * from accounting where name=#{name}
</select>
5.创建一个(类名)dao
public void update(Accounting a);
public Accounting findMoneyByName(String name);
6.写service
public void remit(String from,String to,double money);
7.写serviceimpl
@Service
public class AccountServiceImpl implements AccountService {
@Autowired
private AccountDao ad;
@Override
public void remit(String from, String to, double money) {
Accounting fromAccount=ad.findMoneyByName(from);
fromAccount.setMoney(fromAccount.getMoney()-money);
ad.update(fromAccount);
Accounting toAccount=ad.findMoneyByName(to);
toAccount.setMoney(toAccount.getMoney()+money);
ad.update(toAccount);
}
}
8.引入applicationContext.xml
<beans xmlns="http://www.springframework.org/schema/beans"
评论0
最新资源