ibatis实现的学生信息管理示例

package com.lyz.dao.impl; import java.io.IOException; import java.io.Reader; import java.sql.SQLException; import java.util.List; import com.ibatis.common.resources.Resources; import com.ibatis.sqlmap.client.SqlMapClient; import com.ibatis.sqlmap.client.SqlMapClientBuilder; import com.lyz.dao.StudentDao; import com.lyz.entity.Student; /** * 学生数据操作接口的实现类 * * @author liuyazhuang * */ public class StudentDaoImpl implements StudentDao { // SqlMapClient客户端对象 private static SqlMapClient sqlMapClient = null; // 在静态代码块中读取配置文件 static { try { Reader reader = Resources.getResourceAsReader("SqlMapConfig.xml"); sqlMapClient = SqlMapClientBuilder.buildSqlMapClient(reader); reader.close(); } catch (IOException e) { e.printStackTrace(); } } @Override public boolean addStudent(Student student) { Object object = null; boolean flag = false; try { object = sqlMapClient.insert("addStudent", student); System.out.println("添加学生信息的返回值：" + object); } catch (SQLException e) { e.printStackTrace(); } if (object != null) { flag = true; } return flag; } @Override public boolean deleteStudentById(int id) { boolean flag = false; Object object = null; try { object = sqlMapClient.delete("deleteStudentById", id); System.out.println("删除学生信息的返回值：" + object + "，这里返回的是影响的行数"); } catch (SQLException e) { e.printStackTrace(); } if (object != null) { flag = true; } return flag; } @Override public boolean updateStudent(Student student) { boolean flag = false; Object object = null; try { object = sqlMapClient.update("updateStudent", student); System.out.println("更新学生信息的返回值：" + object + "，返回影响的行数"); } catch (SQLException e) { e.printStackTrace(); } if (object != null) { flag = true; } return flag; } @Override public List<Student> selectAllStudent() { List<Student> students = null; try { students = sqlMapClient.queryForList("selectAllStudent"); } catch (SQLException e) { e.printStackTrace(); } return students; } @Override public List<Student> selectStudentByName(String name) { List<Student> students = null; try { students = sqlMapClient.queryForList("selectStudentByName", name); } catch (SQLException e) { e.printStackTrace(); } return students; } @Override public Student selectStudentById(int id) { Student student = null; try { student = (Student) sqlMapClient.queryForObject("selectStudentById", id); } catch (SQLException e) { e.printStackTrace(); } return student; } }