dbuser.java

一个完整的门户网站,基于JSP环境下开发的,使用SQL数据库.

package com.bwm.database;

import java.sql.*;
import java.util.Collection;
import java.util.ArrayList;
import javax.servlet.http.HttpServletRequest;
import com.bwm.model.User;
import com.bwm.core.*;

/**
 * <p>Title: </p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2004</p>
 * <p>Company: MR</p>
 * @author BWM
 * @version 1.0
 */

public class Dbuser extends User {
    private User u = new User();
    //不使初始化select
    public Dbuser(){}
    //使用数据库始化update
    public Dbuser(String sql) {
        Connection con = null;
        PreparedStatement ps = null;
        ResultSet rs = null;
        try {
            con = Database.getConnection();
            ps = con.prepareStatement(FinalConstants.SELECT_USER+sql,ResultSet.TYPE_SCROLL_INSENSITIVE,ResultSet.CONCUR_READ_ONLY);
            rs = ps.executeQuery();
            if (rs.next()) {
                u.setUid(ParamUtils.getSqlString(rs.getString("uid")));
                u.setPassword(ParamUtils.getSqlString(rs.getString("password")));
                u.setName(ParamUtils.getSqlString(rs.getString("name")));
                u.setRegqu(ParamUtils.getSqlString(rs.getString("regqu")));
                u.setReganswer(ParamUtils.getSqlString(rs.getString("reganswer")));
                u.setIid(ParamUtils.getSqlString(rs.getString("iid")));
                u.setSex(rs.getInt("sex"));
                u.setAge(rs.getInt("age"));
                u.setTel(ParamUtils.getSqlString(rs.getString("tel")));
                u.setEmail(ParamUtils.getSqlString(rs.getString("email")));
                u.setQq(ParamUtils.getSqlString(rs.getString("qq")));
                u.setRegtime(ParamUtils.getSqlString(rs.getString("regtime")));
                u.setAddress(ParamUtils.getSqlString(rs.getString("address")));
                u.setHttp(ParamUtils.getSqlString(rs.getString("http")));
                u.setStatus(rs.getInt("status"));
                u.setState(rs.getInt("state"));
                u.setResume(ParamUtils.getSqlString(rs.getString("resume")));
            }
        } catch (SQLException e) {
            System.out.println(e.getMessage());
            e.printStackTrace();
        } finally {
            System.out.println(ps+" Dbuser(String sql) "+u.getUid());
            try {
                if (ps != null) {
                    ps.close();
                    ps = null;
                }
            } catch (SQLException e) {
                ps = null;
            }
            try {
                if (con != null) {
                    con.close();
                    con = null;
                }
            } catch (SQLException e) {
                con = null;
            }
        }
    }
    //使用内建对像初始化insert
    public Dbuser(HttpServletRequest request) {
        u.setUid(ParamUtils.getRequestString(request, "uid"));
        u.setPassword(ParamUtils.getRequestString(request, "password"));
        u.setName(ParamUtils.getRequestString(request, "name"));
        u.setRegqu(ParamUtils.getRequestString(request, "regqu"));
        u.setReganswer(ParamUtils.getRequestString(request, "reganswer"));
        u.setSex(ParamUtils.getIntParameter(request, "sex"));
        u.setAge(ParamUtils.getIntParameter(request, "age"));
        u.setIid(ParamUtils.getRequestString(request, "iid"));
        u.setTel(ParamUtils.getRequestString(request, "tel"));
        u.setEmail(ParamUtils.getRequestString(request, "email"));
        u.setQq(ParamUtils.getRequestString(request, "qq"));
        u.setAddress(ParamUtils.getRequestString(request, "address"));
        u.setHttp(ParamUtils.getRequestString(request, "http"));
        u.setStatus(ParamUtils.getIntParameter(request, "status"));
        u.setState(ParamUtils.getIntParameter(request, "state"));
        u.setResume(ParamUtils.getRequestString(request, "resume"));
    }

    //注册时间插入系统时间
    public boolean Insert() {
        boolean b = false;
        Connection con = null;
        PreparedStatement ps = null;
        try {
            con = Database.getConnection();
            ps = con.prepareStatement(FinalConstants.INSERT_USER);
            System.out.println("Dbuser.java中:"+FinalConstants.INSERT_USER+"结束");
            ps.setString(1, u.getUid());
            ps.setString(2, u.getPassword());
            ps.setString(3, u.getName());
            ps.setString(4, u.getRegqu());
            ps.setString(5, u.getReganswer());
            ps.setString(6, u.getIid());
            ps.setInt(7, u.getSex());
            ps.setInt(8, u.getAge());
            ps.setString(9, u.getTel());
            ps.setString(10, u.getEmail());
            ps.setString(11, u.getQq());
            ps.setString(12, u.getAddress());
            ps.setString(13, u.getHttp());
            ps.setInt(14, u.getStatus());
            ps.setInt(15, u.getState());
            ps.setString(16, u.getResume());
            if (ps.executeUpdate() > 0) {
                b = true;
            } else {
                b = false;
            }
        } catch (SQLException e) {
            b = false;
            System.out.println(e.getMessage());
            e.printStackTrace();
        } finally {
        System.out.println(ps+" Dbuser.Insert()");
           try {
                if (ps != null) {
                    ps.close();
                }
            } catch (SQLException e) {
                ps = null;
            }
            try {
                if (con != null) {
                    con.close();
                }
            } catch (SQLException e) {
                con = null;
            }
        }
        return b;
    }

     private boolean Update() {
        boolean b = false;
        Connection con = null;
        PreparedStatement ps = null;
        try {
            con = Database.getConnection();
            ps = con.prepareStatement(FinalConstants.UPDATE_USER);
            ps.setString(1, u.getPassword());
            ps.setString(2, u.getName());
            ps.setString(3, u.getIid());
            ps.setInt(4, u.getSex());
            ps.setInt(5, u.getAge());
            ps.setString(6, u.getTel());
            ps.setString(7, u.getEmail());
            ps.setString(8, u.getQq());
            ps.setString(9, u.getAddress());
            ps.setString(10, u.getHttp());
            ps.setInt(11, u.getStatus());
            ps.setInt(12, u.getState());
            ps.setString(13, u.getResume());
            ps.setString(14, u.getUid());
            if (ps.executeUpdate() > 0) {
                b = true;
            } else {
                b = false;
            }
        } catch (SQLException e) {
            b = false;
            e.printStackTrace();
        } finally {
            System.out.println(ps+" Dbuser.Update() ");
            try {
                if (ps != null) {
                    ps.close();
                }
            } catch (SQLException e) {
                ps = null;
            }
            try {
                if (con != null) {
                    con.close();
                }
            } catch (SQLException e) {
                con = null;
            }
        }
        return b;
    }
    public Collection Select(String sql) {
        Collection coll = new ArrayList();
        Connection con = null;
        ResultSet rs = null;
        PreparedStatement ps = null;
        try {
            con = Database.getConnection();
            ps = con.prepareStatement(FinalConstants.SELECT_HEAD + sql);
            System.out.print("SQLHead_wgh："+FinalConstants.SELECT_USER + sql);
            rs = ps.executeQuery();
            while(rs.next()) {
                User user = new User();
                user.setUid(ParamUtils.getSqlString(rs.getString("uid")));
                user.setPassword(ParamUtils.getSqlString(rs.getString("password")));
                user.setName(ParamUtils.getSqlString(rs.getString("name")));
                user.setRegqu(ParamUtils.getSqlString(rs.getString("regqu")));
                user.setReganswer(ParamUtils.getSqlString(rs.getString("reganswer")));
                user.setIid(ParamUtils.getSqlString(rs.getString("iid")));
                user.setSex(rs.getInt("sex"));
                user.setAge(rs.getInt("age"));
                user.setTel(ParamUtils.getSqlString(rs.getString("tel")));
                user.setEmail(ParamUtils.getSqlString(rs.getString("email")));
                user.setQq(ParamUtils.getSqlString(rs.getString("qq")));
                user.setRegtime(ParamUtils.getSqlString(rs.getString("regtime")));
                user.setAddress(ParamUtils.getSqlString(rs.getString("address")));
                user.setHttp(ParamUtils.getSqlString(rs.getString("http")));
                user.setStatus(rs.getInt("status"));
                user.setState(rs.getInt("state"));
                user.setResume(ParamUtils.getSqlString(rs.getString("resume")));
                coll.add(user);
            }
        } catch (SQLException ex) {
            System.out.println(ex.getMessage());
        } finally {
        System.out.println(ps+" Dbuser.Select(String sql) ");