demoservice.java

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package demo.biz;

import java.util.List;

import org.apache.log4j.Logger;

import demo.dao.DemoDao;
import demo.model.Dep;

public class DemoService
{
    private Logger logger = Logger.getLogger(this.getClass().getName());
    public DemoService()
    {
    }
    DemoDao demoDao;
    public void setDemoDao(DemoDao demoDao)
    {
        this.demoDao = demoDao;
    }

    /**
     * 查询数据
     */
    public List<Dep> queryDeps()
    {
        logger.info("从业务方法中调用数据访问对象...");
        return demoDao.queryAllDeps();
    }
}