?? dbaffiche.java
字號:
package com.dao;
import java.sql.*;
import java.util.*;
import javax.servlet.http.HttpServletRequest;
import com.core.*;
import com.model.Affiche;
/**
* <p>Title: </p>
* <p>Description: </p>
* <p>Copyright: Copyright (c) 2004</p>
* <p>Company: MR</p>
* @author BWM
* @version 1.0
*/
public class Dbaffiche extends Affiche {
private Affiche a = new Affiche();
public Dbaffiche() {
}
public Dbaffiche(String sql) {
Connection con = null;
PreparedStatement ps = null;
ResultSet rs = null;
try {
con = Database.getConnection();
ps = con.prepareStatement(FinalConstants.SELECT_AFFICHE + sql,
ResultSet.TYPE_SCROLL_INSENSITIVE,
ResultSet.CONCUR_READ_ONLY);
rs = ps.executeQuery();
if (rs.next()) {
a.setAid(rs.getInt("aid"));
a.setUid(ParamUtils.getSqlString(rs.getString("uid")));
a.setTitle(ParamUtils.getSqlString(rs.getString("title")));
a.setAtime(ParamUtils.getSqlString(rs.getString("atime")));
a.setContent(ParamUtils.getSqlString(rs.getString("content")));
}
} catch (SQLException e) {
System.out.println(e.getMessage());
e.printStackTrace();
} finally {
System.out.println(ps + " Dbaffiche(String sql) " + a.getAid());
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 Dbaffiche(HttpServletRequest request) {
a.setUid(ParamUtils.getRequestString(request, "uid"));
a.setTitle(ParamUtils.getRequestString(request, "title"));
a.setContent(ParamUtils.getRequestString(request, "content"));
}
public boolean Insert() {
boolean b = false;
Connection con = null;
PreparedStatement ps = null;
try {
con = Database.getConnection();
ps = con.prepareStatement(FinalConstants.INSERT_AFFICHE);
ps.setString(1, a.getUid());
ps.setString(2, a.getTitle());
ps.setString(3, a.getContent());
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 + " Dbaffiche.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_AFFICHE + sql);
rs = ps.executeQuery();
while (rs.next()) {
Affiche affiche = new Affiche();
affiche.setAid(rs.getInt("aid"));
affiche.setUid(ParamUtils.getSqlString(rs.getString("uid")));
affiche.setTitle(ParamUtils.getSqlString(rs.getString("title")));
affiche.setAtime(ParamUtils.getSqlString(rs.getString("atime")));
affiche.setContent(ParamUtils.getSqlString(rs.getString("content")));
coll.add(affiche);
}
} catch (SQLException ex) {
System.out.println(ex.getMessage());
} finally {
System.out.println(ps + " Dbaffiche.Select(String sql) "+FinalConstants.SELECT_AFFICHE + 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;
}
//頁數+SQL條件
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_AFFICHE + 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++) {
Affiche affiche = new Affiche();
affiche.setAid(rs.getInt("aid"));
affiche.setUid(ParamUtils.getSqlString(rs.getString("uid")));
affiche.setTitle(ParamUtils.getSqlString(rs.getString("title")));
affiche.setAtime(ParamUtils.getSqlString(rs.getString("atime")));
affiche.setContent(ParamUtils.getSqlString(rs.getString("content")));
coll.add(affiche);
}
} catch (SQLException ex) {
System.out.println(ex.getMessage());
} finally {
System.out.println(ps + " Dbaffiche.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_AFFICHE);
ps.setString(1, a.getTitle());
ps.setString(2, a.getContent());
ps.setInt(3, a.getAid());
if (ps.executeUpdate() > 0) {
b = true;
} else {
b = false;
}
} catch (SQLException e) {
b = false;
e.printStackTrace();
} finally {
System.out.println(ps + " Dbaffiche.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 getAid() {
return a.getAid();
}
public void setAid(int aid) {
a.setAid(aid);
}
public String getUid() {
return a.getUid();
}
public void setUid(String uid) {
a.setUid(uid);
}
public String getTitle() {
return a.getTitle();
}
public void setTitle(String title) {
a.setTitle(title);
Update();
}
public String getAtime() {
return a.getAtime();
}
public void setAtime(String atime) {
a.setAtime(atime);
}
public String getContent() {
return a.getContent();
}
public void setContent(String content) {
a.setContent(content);
Update();
}
}
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