SpringJDBC的简单应用

此处写上应用JdbcTemplate的dao操作数据库的一些代码（含基本的增删改查，注：重点是查询出多条语句的写法）：

package org.sakaiproject.zhaorui.dao.impl;

import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.List;

import javax.annotation.Resource;

import org.sakaiproject.zhaorui.dao.StudentDao;
import org.sakaiproject.zhaorui.model.Student;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.core.RowMapper;
import org.springframework.stereotype.Repository;

@Repository
public class StudentDaoImpl implements StudentDao {
 
    @Resource(name="jdbcTemplate")
    private JdbcTemplate jdbcTemplate;

@SuppressWarnings("unchecked")
    @Override
    public List<Student> selectAll() {
        String sql = "select * from Student";
        return jdbcTemplate.query(sql,new StudentMapper());
        
    }
    @Override
    public void insertStudent(Student student) {
        try {
            jdbcTemplate.execute("insert into student(username,userpassword,userother) values("+student.getUsername()+","+student.getUserpassword()+","+student.getUserother()+")");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
    @Override
    public boolean updateStudent(Student student) {
        try {
            jdbcTemplate.update("update student set username="+student.getUsername()+",userpassword="+student.getUserpassword()+",userother="+student.getUserother()+" where usernumber = "+student.getUsernumber());
            return true;
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        }
    }
    @Override
    public boolean deleteStudent(Integer usernumber) {
        try {
            jdbcTemplate.execute("delete from student where usernumber="+usernumber);
            return true;
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        }
    }

}
class StudentMapper implements RowMapper {  
      
    @Override
    public Object mapRow(ResultSet rs, int rowNum) throws SQLException {
          Student stu = new Student();  
           stu.setUsername(rs.getString("username"));
           stu.setUsernumber(rs.getInt("usernumber"));
           stu.setUserother(rs.getString("userother"));
           stu.setUserpassword(rs.getString("userpassword"));
        return stu;
    }
}

注：如果查询出来的是一条结果或者结果是基本类型，用下面代码即可，不用重写rowMapper的借口

package org.sakaiproject.zhaorui.dao.impl;

import org.sakaiproject.zhaorui.dao.TestDao;

import javax.annotation.Resource;

import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.stereotype.Repository;

@Repository
public class TestDaoImpl implements TestDao {
    
    @Resource(name="jdbcTemplate")
    private JdbcTemplate jdbcTemplate;

@Override
    public int count() {
        return jdbcTemplate.queryForObject("select count(1) from sakai_user", Integer.class);
    }

}

具体的SpringJDBC的例子请参照：http://my.oschina.net/u/218421/blog/38598，里面写的已经很详细了