dbfsort.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.*;
import javax.servlet.http.HttpServletRequest;
import com.bwm.model.Fsort;
import com.bwm.core.*;

/**
 * <p>Title: mingrisoft</p>
 * <p>Description: 明日科技门户网站</p>
 * <p>Copyright: Copyright (c) 2005</p>
 * <p>Company: MR</p>
 * @author BWM
 * @version 1.0
 */

public class Dbfsort extends Fsort {
    private Fsort f=new Fsort();
    public Dbfsort() {
    }
    public Dbfsort(String sql) {
        Connection con = null;
        PreparedStatement ps = null;
        ResultSet rs = null;
        try {
            con = Database.getConnection();
            ps = con.prepareStatement(FinalConstants.SELECT_FSORT + sql,
                                      ResultSet.TYPE_SCROLL_INSENSITIVE,
                                      ResultSet.CONCUR_READ_ONLY);
            rs = ps.executeQuery();
            if (rs.next()) {
                f.setFsid(rs.getInt("fsid"));
                f.setState(rs.getInt("state"));
                f.setFree(rs.getInt("free"));
                f.setName(ParamUtils.getSqlString(rs.getString("name")));
                f.setFtime(ParamUtils.getSqlString(rs.getString("ftime")));
                f.setResume(ParamUtils.getSqlString(rs.getString("resume")));
                f.setUid(ParamUtils.getSqlString(rs.getString("uid")));
            }
        } catch (SQLException e) {
            System.out.println(e.getMessage());
            e.printStackTrace();
        } finally {
            System.out.println(ps + " Dbfsort(String sql) " +FinalConstants.SELECT_FSORT + sql);
            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;
            }
        }
    }

    public Dbfsort(HttpServletRequest request) {
        f.setState(ParamUtils.getIntParameter(request, "state"));
        f.setFree(ParamUtils.getIntParameter(request, "free"));
        f.setName(ParamUtils.getRequestString(request, "name"));
        f.setResume(ParamUtils.getRequestString(request, "resume"));
        f.setUid(ParamUtils.getRequestString(request, "uid"));
    }

    public boolean Insert() {
        boolean b = false;
        Connection con = null;
        PreparedStatement ps = null;
        try {
            con = Database.getConnection();
            ps = con.prepareStatement(FinalConstants.INSERT_FSORT);
            ps.setInt(1, f.getState());
            ps.setInt(2, f.getFree());
            ps.setString(3, f.getName());
            ps.setString(4, f.getUid());
            ps.setString(5, f.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 + " Dbfsort.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;
    }

    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_FSORT + sql);
            rs = ps.executeQuery();
            while (rs.next()) {
                Fsort link = new Fsort();
                link.setFsid(rs.getInt("fsid"));
                link.setState(rs.getInt("state"));
                link.setFree(rs.getInt("free"));
                link.setName(ParamUtils.getSqlString(rs.getString("name")));
                link.setFtime(ParamUtils.getSqlString(rs.getString("ftime")));
                link.setResume(ParamUtils.getSqlString(rs.getString("resume")));
                link.setUid(ParamUtils.getSqlString(rs.getString("uid")));
                coll.add(link);
            }
        } catch (SQLException ex) {
            System.out.println(ex.getMessage());
        } finally {
            System.out.println(ps + " Dbfsort.Select(String sql) "+FinalConstants.SELECT_FSORT + sql);
            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;
            }
        }
        return coll;
    }

    //页数+SQL条件
    public Collection Select(int page, String sql) {
        Collection coll = new ArrayList();
        Connection con = null;
        ResultSet rs = null;
        PreparedStatement ps = null;
        int tip = FinalConstants.STEP * (page - 1);
        try {
            con = Database.getConnection();
            ps = con.prepareStatement(FinalConstants.SELECT_FSORT + sql);
            rs = ps.executeQuery();
            if (tip <= 0) {
                rs.beforeFirst();
            } else {
                if (!rs.absolute(tip)) {
                    rs.beforeFirst();
                }
            }
            for (int i = 1; rs.next() && i <= FinalConstants.STEP; i++) {
                Fsort link = new Fsort();
                link.setFsid(rs.getInt("fsid"));
                link.setState(rs.getInt("state"));
                link.setFree(rs.getInt("free"));
                link.setName(ParamUtils.getSqlString(rs.getString("name")));
                link.setFtime(ParamUtils.getSqlString(rs.getString("ftime")));
                link.setResume(ParamUtils.getSqlString(rs.getString("resume")));
                link.setUid(ParamUtils.getSqlString(rs.getString("uid")));
                coll.add(link);
            }
        } catch (SQLException ex) {
            System.out.println(ex.getMessage());
        } finally {
            System.out.println(ps + " Dbfsort.Select(int page,String sql) ");
            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;
            }
        }
        return coll;
    }

    private boolean Update() {
        boolean b = false;
        Connection con = null;
        PreparedStatement ps = null;
        try {
            con = Database.getConnection();
            ps = con.prepareStatement(FinalConstants.UPDATE_FSORT);
            ps.setInt(1, f.getState());
            ps.setInt(2, f.getFree());
            ps.setString(3, f.getName());
            ps.setString(4, f.getUid());
            ps.setString(5, f.getResume());
            ps.setInt(6, f.getFsid());
            if (ps.executeUpdate() > 0) {
                b = true;
            } else {
                b = false;
            }
        } catch (SQLException e) {
            b = false;
            e.printStackTrace();
        } finally {
            System.out.println(ps + " Dbfsort.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 int getState() {
        return f.getState();
    }
    public void setState(int state) {
        f.setState(state);
        Update();
    }
    public int getFsid() {
        return f.getFsid();
    }
    public void setFsid(int fsid) {
        f.setFsid(fsid);
    }
    public String getName() {
        return f.getName();
    }
    public void setName(String name) {
        f.setName(name);
        Update();
    }
    public String getFtime() {
        return f.getFtime();
    }
    public void setFtime(String ftime) {
        f.setFtime(ftime);
    }
    public String getUid() {
        return f.getUid();
    }
    public void setUid(String uid) {
        f.setUid(uid);
    }
    public String getResume() {
        return f.getResume();
    }
    public void setResume(String resume) {
        f.setResume(resume);
        Update();
    }
    public int getFree() {
        return f.getFree();
    }
    public void setFree(int free) {
        f.setFree(free);
        Update();
    }

}