一個(gè)簡(jiǎn)單的JDBC連接程序
package com;
創(chuàng)新互聯(lián)是一家從事企業(yè)網(wǎng)站建設(shè)、成都網(wǎng)站設(shè)計(jì)、成都做網(wǎng)站、行業(yè)門戶網(wǎng)站建設(shè)、網(wǎng)頁設(shè)計(jì)制作的專業(yè)網(wǎng)絡(luò)公司，擁有經(jīng)驗(yàn)豐富的網(wǎng)站建設(shè)工程師和網(wǎng)頁設(shè)計(jì)人員，具備各種規(guī)模與類型網(wǎng)站建設(shè)的實(shí)力，在網(wǎng)站建設(shè)領(lǐng)域樹立了自己獨(dú)特的設(shè)計(jì)風(fēng)格。自公司成立以來曾獨(dú)立設(shè)計(jì)制作的站點(diǎn)超過千家。
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.ArrayList;
public class NavalMgmtDAO {
public static void main(String[] args) {
NavalMgmtDAO navalMgmtDAO=new NavalMgmtDAO();
double sal=navalMgmtDAO.getOfficersTotalSalOnBaseCamp(38);
System.out.println(sal);
}
public int addNavalOfficer(NavalOfficer navalOfficer)
{
int no=navalOfficer.getOfficerNo();
String name=navalOfficer.getOfficerName();
String rank=navalOfficer.getOfficerRank();
double sal=navalOfficer.getOfficerSal();
int campid=navalOfficer.getBaseCampId();
Connection connection = null;
int status = 0;
DBConnectionHelper helper = new DBConnectionHelper();
connection = helper.getOracleConnection();
Statement statement = null;
try {
connection.setAutoCommit(false);
statement = connection.createStatement();
String sql = "INSERT INTO TBL_Officer_1273752 values (" +no+",'"+name+"','"+rank+"',"+sal+","+campid+")";
status = statement.executeUpdate(sql);
connection.commit();
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
finally {
try {
if (statement != null)
statement.close();
// System.out.println("STATEMENT SUCCESSFULLY CLOSED");
} catch (SQLException se) {
se.printStackTrace();
}// do nothing
try {
if (connection != null)
connection.close();
// System.out.println("CONNECTION SUCCESSFULLY CLOSED");
} catch (SQLException se) {
se.printStackTrace();
}// end finally try
}// end try
if (status == 1) {
System.out.println("Data inserted successfully");
}else{
System.out.println("Connection error");
}
return status;
}
public int addBaseCamp(BaseCamp baseCamp)
{
int id=baseCamp.getBaseCampId();
String name=baseCamp.getBaseCampName();
int loc=baseCamp.getBaseCampLoc();
Connection connection = null;
int status = 0;
DBConnectionHelper helper = new DBConnectionHelper();
connection = helper.getOracleConnection();
Statement statement = null;
try {
connection.setAutoCommit(false);
statement = connection.createStatement();
String sql = "INSERT INTO TBL_Base_Camp_1273752 values (" +id+",'"+name+"','"+loc+"')";
status = statement.executeUpdate(sql);
connection.commit();
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
finally {
try {
if (statement != null)
statement.close();
// System.out.println("STATEMENT SUCCESSFULLY CLOSED");
} catch (SQLException se) {
se.printStackTrace();
}// do nothing
try {
if (connection != null)
connection.close();
// System.out.println("CONNECTION SUCCESSFULLY CLOSED");
} catch (SQLException se) {
se.printStackTrace();
}// end finally try
}// end try
if (status == 1) {
System.out.println("Data inserted successfully");
}else{
System.out.println("Connection error");
}
return status;
}
public ArrayList<String> getOfficersNameSortedBySal()
{
ArrayList<String> arrayList=new ArrayList<String>();
Connection connection = null;
DBConnectionHelper helper = new DBConnectionHelper();
connection = helper.getOracleConnection();
Statement statement = null;
ResultSet resultSet = null;
try {
statement = connection.createStatement();
String sql = "select officer_name from tbl_officer_1273752 order by officer_sal";
resultSet = statement.executeQuery(sql);
while (resultSet.next()) {
String name = resultSet.getString(1);
arrayList.add(name);
}
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} finally {
try {
if (statement != null)
statement.close();
} catch (SQLException se) {
}// do nothing
try {
if (connection != null)
connection.close();
} catch (SQLException se) {
se.printStackTrace();
}// end finally try
if (resultSet != null) {
try {
resultSet.close();
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}// end try
return arrayList;
}
public ArrayList<String> getOfficersNameForBaseCampLoc(String baseCampLoc)
{
ArrayList<String> arrayList=new ArrayList<String>();
Connection connection = null;
DBConnectionHelper helper = new DBConnectionHelper();
connection = helper.getOracleConnection();
Statement statement = null;
ResultSet resultSet = null;
try {
statement = connection.createStatement();
String sql = "select officer_name from tbl_officer_1273752 where base_camp_id in (select base_camp_id from tbl_base_camp_1273752 where base_camp_loc='"+baseCampLoc+"')";
resultSet = statement.executeQuery(sql);
while (resultSet.next()) {
String name = resultSet.getString(1);
arrayList.add(name);
}
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} finally {
try {
if (statement != null)
statement.close();
} catch (SQLException se) {
}// do nothing
try {
if (connection != null)
connection.close();
} catch (SQLException se) {
se.printStackTrace();
}// end finally try
if (resultSet != null) {
try {
resultSet.close();
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}// end try
return arrayList;
}
public double getOfficersTotalSalOnBaseCamp(int baseCampId)
{
double sal=0;
Connection connection = null;
DBConnectionHelper helper = new DBConnectionHelper();
connection = helper.getOracleConnection();
Statement statement = null;
ResultSet resultSet = null;
try {
statement = connection.createStatement();
String sql = "select sum(officer_sal) from tbl_officer_1273752 where base_camp_id="+baseCampId+"";
resultSet = statement.executeQuery(sql);
while (resultSet.next()) {
sal= resultSet.getDouble(1);
}
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} finally {
try {
if (statement != null)
statement.close();
} catch (SQLException se) {
}// do nothing
try {
if (connection != null)
connection.close();
} catch (SQLException se) {
se.printStackTrace();
}// end finally try
if (resultSet != null) {
try {
resultSet.close();
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}// end try
return sal;
}
}
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