详解spring+springmvc+mybatis整合注解

    contextConfigLocation
    classpath:applicationContext.xml
  
  
    org.springframework.web.context.ContextLoaderListener
  
  
    springmvc
    org.springframework.web.servlet.DispatcherServlet
    
      contextConfigLocation
      classpath:springmvc.xml
    
  

  
    springmvc
    *.action

    update accounting set mOney=#{money} where name=#{name}
  
  
    select * from accounting where name=#{name}

public void update(Accounting a);
public Accounting findMoneyByName(String name);

public void remit(String from,String to,double money);

@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);
  }

}

//index.jsp:
 
  汇款人：
  收款人：
  钱数：
  
 
//message.jsp
${message }