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@ -1,113 +1,123 @@
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package com.cn.dao.impl;
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package com.cn.dao.impl; // 实现PmemberDao接口的包
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import java.sql.Connection;
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import java.sql.PreparedStatement;
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import java.sql.ResultSet;
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import java.sql.SQLException;
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import com.cn.dao.PmemberDao;
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import com.cn.domain.Pmember;
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import com.cn.util.JDBCUtil;
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import java.sql.*; // 导入SQL相关类
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import com.cn.dao.PmemberDao; // 导入PmemberDao接口
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import com.cn.domain.Pmember; // 导入Pmember实体类
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import com.cn.util.JDBCUtil; // 导入JDBC工具类
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/**
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*
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* @ClassName: PmemberDaoImpl
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* @Description: PmemberDao的实现类
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* @author: ljy
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* @date: 2019年9月14日 下午10:45:42
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* PmemberDao的实现类,提供个人会员数据访问操作。
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*/
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public class PmemberDaoImpl implements PmemberDao {
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private Connection conn = null;
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private PreparedStatement pstmt = null;
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private ResultSet rs;
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private Connection conn = null; // 数据库连接
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private PreparedStatement pstmt = null; // 预编译语句
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private ResultSet rs; // 结果集
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@Override
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public int add(Pmember pmember) throws SQLException { // 添加个人会员
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String sql = "insert into pmember (memberid,realname,sex,age,idcard) values (?,?,?,?,?)";
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conn = JDBCUtil.getConnection(); // 获取数据库连接
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pstmt = conn.prepareStatement(sql); // 准备SQL语句
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pstmt.setObject(1, pmember.getMemberId()); // 设置参数
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pstmt.setObject(2, pmember.getRealName());
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pstmt.setObject(3, pmember.getSex());
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pstmt.setObject(4, pmember.getAge());
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pstmt.setObject(5, pmember.getIdCard());
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int status = pstmt.executeUpdate(); // 执行插入
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closeResources(); // 关闭资源
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return status;
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}
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@Override
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public int add(Pmember pmember) throws SQLException {
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String sql = "insert into pmember (memberid,realname,sex,age,idcard) values (?,?,?,?,?)";
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conn = JDBCUtil.getConnection();
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pstmt = conn.prepareStatement(sql);
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pstmt.setObject(1, pmember.getMemberId());
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pstmt.setObject(2, pmember.getRealName());
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pstmt.setObject(3, pmember.getSex());
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pstmt.setObject(4, pmember.getAge());
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pstmt.setObject(5, pmember.getIdCard());
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int status = pstmt.executeUpdate();
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pstmt.close();
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conn.close();
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return status;
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}
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@Override
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public int delete(Integer pmemberId) throws SQLException { // 根据ID删除个人会员
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String sql = "delete from pmember where pmemberid=?";
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conn = JDBCUtil.getConnection();
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pstmt = conn.prepareStatement(sql);
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pstmt.setObject(1, pmemberId);
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int status = pstmt.executeUpdate();
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closeResources();
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return status;
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}
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@Override
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public int delete(Integer pmemberId) throws SQLException {
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String sql = "delete from pmember where pmemberid=?";
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conn = JDBCUtil.getConnection();
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pstmt = conn.prepareStatement(sql);
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pstmt.setObject(1, pmemberId);
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int status = pstmt.executeUpdate();
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pstmt.close();
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conn.close();
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return status;
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}
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@Override
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public int update(Pmember pmember) throws SQLException { // 更新个人会员信息
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String sql = "update pmember set memberid=?,realname=?,sex=?,age=?,idcard=? where pmemberid=?";
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conn = JDBCUtil.getConnection();
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pstmt = conn.prepareStatement(sql);
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pstmt.setObject(1, pmember.getMemberId());
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pstmt.setObject(2, pmember.getRealName());
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pstmt.setObject(3, pmember.getSex());
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pstmt.setObject(4, pmember.getAge());
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pstmt.setObject(5, pmember.getIdCard());
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pstmt.setObject(6, pmember.getPmemberId());
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int status = pstmt.executeUpdate();
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closeResources();
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return status;
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}
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@Override
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public int update(Pmember pmember) throws SQLException {
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String sql = "update pmember set memberid=?,realname=?,sex=?,age=?,idcard=? where pmemberid=?";
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conn = JDBCUtil.getConnection();
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pstmt = conn.prepareStatement(sql);
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pstmt.setObject(1, pmember.getMemberId());
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pstmt.setObject(2, pmember.getRealName());
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pstmt.setObject(3, pmember.getSex());
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pstmt.setObject(4, pmember.getAge());
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pstmt.setObject(5, pmember.getIdCard());
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pstmt.setObject(6, pmember.getPmemberId());
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int status = pstmt.executeUpdate();
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pstmt.close();
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conn.close();
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return status;
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}
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@Override
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public Pmember getPmemberByMemberId(Integer memberId) throws SQLException { // 根据会员ID获取个人会员
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String sql = "select * from pmember where memberId=?";
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conn = JDBCUtil.getConnection();
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pstmt = conn.prepareStatement(sql);
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pstmt.setObject(1, memberId);
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rs = pstmt.executeQuery();
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Pmember pmember = null;
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if (rs.next()) {
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pmember = resultSetToPmember(rs); // 将结果集转换为Pmember对象
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}
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closeResources();
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return pmember;
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}
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@Override
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public Pmember getPmemberByMemberId(Integer memberId) throws SQLException {
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String sql = "select * from pmember where memberId=?";
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conn = JDBCUtil.getConnection();
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pstmt = conn.prepareStatement(sql);
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pstmt.setObject(1, memberId);
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rs = pstmt.executeQuery();
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Pmember pmember = null;
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while (rs.next()) {
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int pmemberId = rs.getInt("pmemberId");
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String realName = rs.getString("realName");
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String sex = rs.getString("sex");
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int age = rs.getInt("age");
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String idCard = rs.getString("idCard");
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pmember = new Pmember(pmemberId, memberId, realName, sex, age, idCard);
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}
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rs.close();
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pstmt.close();
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conn.close();
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return pmember;
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}
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@Override
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public Pmember getById(Integer pmemberId) throws SQLException { // 根据个人会员ID获取个人会员
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String sql = "select * from pmember where pmemberid=?";
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conn = JDBCUtil.getConnection();
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pstmt = conn.prepareStatement(sql);
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pstmt.setObject(1, pmemberId);
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rs = pstmt.executeQuery();
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Pmember pmember = null;
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if (rs.next()) {
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pmember = resultSetToPmember(rs); // 将结果集转换为Pmember对象
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}
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closeResources();
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return pmember;
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}
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@Override
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public Pmember getById(Integer pmemberId) throws SQLException {
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String sql = "select * from pmember where pmemberid=?";
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conn = JDBCUtil.getConnection();
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pstmt = conn.prepareStatement(sql);
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pstmt.setObject(1, pmemberId);
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rs = pstmt.executeQuery();
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Pmember pmember = null;
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while (rs.next()) {
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int memberId = rs.getInt("memberId");
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String realName = rs.getString("realName");
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String sex = rs.getString("sex");
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int age = rs.getInt("age");
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String idCard = rs.getString("idCard");
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pmember = new Pmember(pmemberId, memberId, realName, sex, age, idCard);
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}
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rs.close();
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pstmt.close();
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conn.close();
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return pmember;
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}
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// 将结果集转换为Pmember对象的方法
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private Pmember resultSetToPmember(ResultSet rs) throws SQLException {
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int pmemberId = rs.getInt("pmemberId");
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int memberId = rs.getInt("memberId");
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String realName = rs.getString("realName");
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String sex = rs.getString("sex");
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int age = rs.getInt("age");
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String idCard = rs.getString("idCard");
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return new Pmember(pmemberId, memberId, realName, sex, age, idCard);
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}
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// 关闭数据库资源的方法
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private void closeResources() {
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if (rs != null) {
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try {
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rs.close();
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} catch (SQLException e) {
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e.printStackTrace();
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}
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}
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if (pstmt != null) {
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try {
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pstmt.close();
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} catch (SQLException e) {
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e.printStackTrace();
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}
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}
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if (conn != null) {
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try {
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conn.close();
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} catch (SQLException e) {
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e.printStackTrace();
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}
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}
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}
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}
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