struts构建文件上传(七)

王朝other·作者佚名  2008-05-31
窄屏简体版  字體: |||超大  

package tester.business.maitain;

import tclcc.tester.business.maitain.Trainplan;

import tclcc.tester.util.DBConn;

import Java.sql.*;

import java.util.*;

public class TrainPlanDAO {

private DBConn dbconn = null;

private Connection conn = null;

private static final String ADD_TRAINPLAN=

"INSERT INTO KS_TRAINPLAN (p_id,p_title,issue_time,issuer,p_content,p_Accessory) VALUES (lpad(SEQ_P_ID.nextVal,10,´0´),?,?,to_date(?,´yyyy-mm-dd´),?,?,?)";

private final static String UPDATE_TRAINPLAN=

"UPDATE KS_TRAINPLAN set p_id=?,p_title=?,post_index=?,issue_time=to_date(?,´yyyy-mm-dd´),issuer=?,p_content=?,p_accessory=? where p_id=?";

/**

* get a connection from a DB pool

* @return Connection

*/

public TrainPlanDAO() {

try {

dbconn = new DBConn();

conn = dbconn.getConnection();

} catch (Exception ex) {

ex.printStackTrace();

}

}

/**

* add a row into DB

* @param examinee Examinee

* @throws SQLException

*/

public void addTrainPlan(Trainplan trainPlan) throws SQLException {

PreparedStatement pstmt = null;

try {

pstmt = conn.prepareStatement(ADD_TRAINPLAN);

pstmt.setString(1, trainPlan.getP_title());

pstmt.setString(2, trainPlan.getIssue_time());

pstmt.setString(3, trainPlan.getIssuer());

pstmt.setString(4, trainPlan.getP_content());

pstmt.setString(5, trainPlan.getP_accessory());

pstmt.executeUpdate();

} catch (SQLException ex) {

ex.printStackTrace();

} finally {

try {

pstmt.close();

//conn.close();

} catch (SQLException ex1) {

}

}

}

/**

* remove a row from DB

* @param trainPlan TrainPlan

* @throws SQLException

*/

public void removeTrainPlan(Trainplan trainPlan) throws SQLException {

this.removeTrainPlan(trainPlan.getP_id());

}

/**

* remove a row from DB

* @param p_id int

* @throws SQLException

*/

public void removeTrainPlan(int p_id) throws SQLException {

Statement stmt = null;

try {

stmt = conn.createStatement();

stmt.execute("DELETE FROM ks_trainplan WHERE p_id=" + p_id);

} catch (SQLException ex) {

ex.printStackTrace();

throw new SQLException("SQLExction on : TrainPlanDAO.removeExaminee()");

} finally {

try {

conn.close();

} catch (SQLException ex1) {

ex1.printStackTrace();

}

}

}

/**

* update a row

* @param examinee Examinee

* @throws SQLException

*/

public void updateTrainPlan(Trainplan trainPlan) throws SQLException {

PreparedStatement pstmt = null;

try {

// UPDATE_TRAINPLAN = UPDATE_TRAINPLAN + "where p_id =" + trainPlan.getP_id(); //the condition need modification

pstmt = conn.prepareStatement(UPDATE_TRAINPLAN);

pstmt.setInt(1, trainPlan.getP_id());

pstmt.setString(2, trainPlan.getP_title());

pstmt.setInt(3, trainPlan.getPost_index());

pstmt.setString(4, trainPlan.getIssue_time());

pstmt.setString(5, trainPlan.getIssuer());

pstmt.setString(6, trainPlan.getP_content());

pstmt.setString(7, trainPlan.getP_accessory());

pstmt.setInt(8,trainPlan.getP_id());

pstmt.executeUpdate();

} /*catch (SQLException ex) {

ex.getStackTrace();

throw new SQLException("SQLExction on : TrainPlanDAO.updateExaminee()");

} */

catch(SQLException sqle){

do

{

System.err.println("Exception occoured:

Message:"+sqle.getMessage());

System.err.println("SQL state:"+sqle.getSQLState());

System.err.println("Vendor code:"+sqle.getErrorCode()+"

---------------");

} while((sqle=sqle.getNextException())!=null);

}finally {

try {

conn.close();

} catch (SQLException ex1) {

ex1.printStackTrace();

}

}

}

/**

* get all record from DB

* @throws SQLException

* @return Collection

*/

public Collection getAll() throws SQLException {

Statement stmt = null;

ResultSet rs = null;

Trainplan trainPlan = null;

Collection list = null;

try {

stmt = conn.createStatement();

rs = stmt.executeQuery("SELECT * FROM ks_trainplan");

list = new ArrayList();

while (rs.next()) {

trainPlan = new Trainplan();

trainPlan.setP_id(rs.getInt("P_ID"));

trainPlan.setP_title(rs.getString("P_TITLE"));

trainPlan.setPost_index(rs.getInt("POST_INDEX"));

trainPlan.setIssue_time(rs.getString("ISSUE_TIME"));

trainPlan.setIssuer(rs.getString("ISSUER"));

trainPlan.setP_content(rs.getString("P_CONTENT"));

trainPlan.setP_accessory(rs.getString("P_ACCESSORY"));

list.add(trainPlan);

}

} catch (SQLException ex) {

} finally {

try {

conn.close();

} catch (SQLException ex1) {

ex1.printStackTrace();

}

return list;

}

}

public static String toString(Trainplan trainPlan){

return trainPlan.getP_title();

}

/**

* for test

* @param args String[]

*/

}

 
 
 
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