oraclejava連接
8.Oracle8/8i/9i資料庫（thin模式）
//import java.sql.*;
Class.forName("oracle.jdbc.driver.OracleDriver").newInstance();
String url="jdbc:oracle:thin:@localhost:1521:orcl"; //orcl為資料庫的SID
String user="test";
String password="test";
Connection conn= DriverManager.getConnection(url,user,password);
Statement stmtNew=conn.createStatement();
1.提取單條記錄
//import java.sql.*;
Connection con=null;
Statement stmt=null;
ResultSet %%6=null;
try {
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
String url="jdbc:odbc:"+%%1;
con=DriverManager.getConnection(url,%%2,%%3);
stmt=con.createStatement();
stmt.executeUpdate(%%4);
%%6=stmt.executeQuery(%%5);
%%7
}catch(Exception e){
e.printStackTrace();
}finally{
try {
try {
stmt.close();
con.close();
} catch (SQLException e) {
e.printStackTrace();
}
} catch (Exception e) {
e.printStackTrace();
}
}
2.單值比較
//import java.sql.*;
ResultSet rs;
String strurl="jdbc:odbc:%%1";
Connection con=NULL;
Statement stmt=null;
try {
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
con=DriverManager.getConnection(url,%%2,%%3);
stmt=con.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE);
rs=stmt.executeQuery(%%2);
rs.next();
int %%3=rs.getInt("%%3");
if(%%3==%%4)
{
%%5
}
}
catch (Exception e) {
e.printStackTrace();
}
finally{
try {
if(rs!=null)
{
rs.close();
stmt.close();
con.close();
} catch (Exception e) {
e.printStackTrace();
}
}
3.顯示表格
//import java.awt.*;
//import javax.swing.*;
//import java.sql.*;
//import javax.swing.table.*;
String[] colHeads=%%4;
Connection con=null;
Statement stmt=null;
ResultSet %%6=null;
try {
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
String url="jdbc:odbc:"+%%1;
con=DriverManager.getConnection(url,%%2,%%3);
stmt=con.createStatement();
%%6=stmt.executeQuery("SELECT count(*) as au_count from "+%%5);
%%6.next();
int iCount=rs.getInt("au_count");
Object[][] data=new Object[iCount][];
int i=0;
%%6=stmt.executeQuery("SELECT * from "+%%5);
while(%%6.next()){
data[i]=new Object[iCount];
data[i][0]=%%6.getString("au_fname");
data[i][1]=%%6.getString("Phone");
data[i][2]=%%6.getString("City");
i++;
}
JTable table=new JTable(data,colHeads);
JScrollPane jsp=new JScrollPane(table);
getContentPane().add(jsp);
}catch(Exception e){
e.printStackTrace();
}
finally{
if(con!=null){
try {
%%6.close();
stmt.close();
con.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
}
7.執行命令
//import java.sql.*;
Connection conn;
PreparedStatement pst=null;
try {
conn=DriverManager.getConnection(url);
pst=conn.prepareStatement("Insert Into grade(%%1) Values (?)");
pst.setInt(1,%%2);
//pst.setInt(2,%%2);
pst.addBatch();
pst.executeBatch();
} catch (SQLException e){
e.printStackTrace();
}
finally{
pst.close();
conn.close();
}
『貳』 java操控oracle建立連接
你這樣發出來大家是無法給出判斷是哪裡錯誤的。最起碼得把錯誤信息提示給貼出來吧。conn是一個connection的連接對象。不管是ORacle還是其他的資料庫總是要拿這個連接對象。因為，它們就是jdbc的東西。通過驅動管理對象DriverManager獲得一個連接。所以，這里url,user,password都要寫對！如果想要得到更好的解釋，那就把錯誤提示信息貼出來吧
『叄』 oracle與Java連接方法
import java.sql.Connection; import java.sql.DriverManager; import java.這樣連接基本上沒有什麼錯誤。你可以試試，很可能就是你的oracle服務沒有啟動
『肆』 java怎麼連接oracle
class myConnection{
ResultSet re;
String strurl = "jdbc:oracle:thin:@localhost:1521:orcl"; 地址
String user="scott"; 用戶名
String password="123"; 密碼
public myConnection(){}
public ResultSet getResult(String sql){
try{
Class.forName("oracle.jdbc.driver.OracleDriver");
Connection conn=DriverManager.getConnection(strurl,user,password);
Statement stmt=conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE);
ResultSet re=stmt.executeQuery(sql);
return re;
}
catch(Exception e){
System.out.println("getResult------"+e.toString());
return null;
}
}
public boolean executeSql(String sql){
try{
Class.forName("oracle.jdbc.driver.OracleDriver");
Connection conn=DriverManager.getConnection(strurl,user,password);
Statement stmt=conn.createStatement();
stmt.executeUpdate(sql);
conn.commit();
return true;
}
catch(Exception e){
System.out.println("executeSql----"+e.toString());
return false;
}
}
}
『伍』 java jdbc連接oracle資料庫步驟
跟連接mysql一樣的；
如果java類連接，網上搜索一個連接代碼即可，若是controller，在裡面寫上
spring.datasource.secondary.jdbc-url=
spring.datasource.secondary.username=
spring.datasource.secondary.password=
oracle同理
『陸』 如何用Java實現連接Oracle
一個最簡單連接oracle的例子
package oracletest;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
public class OracleTest {
public static void main(String[] args) {
//String serverName = "localhost";
try {
Class.forName("oracle.jdbc.driver.OracleDriver");
System.out.println("1");
String url = "jdbc:oracle:thin:@localhost:1521:ORA9I";
Connection conn = DriverManager.getConnection(url, "scott", "tiger");
System.out.println("2");
Statement stmt = conn.createStatement();
ResultSet rs = stmt.executeQuery("select * from test1");
while (rs.next()) {
System.out.println(rs.getString("id"));
System.out.println(rs.getString("name"));
}
} catch (SQLException e) {
// TODO 自動生成 catch 塊
e.printStackTrace();
} catch (ClassNotFoundException e) {
// TODO 自動生成 catch 塊
e.printStackTrace();
}
}
}
『柒』 java與oracle要怎樣連接
JDBC啊，六大步，
String url = "jdbc:oracle:thin:@localhost:1521:XE";//固定的，照著寫就行
String username = "system";//oracle用戶名
String pwd = "123";//oracle密碼
String sql = "select sum(cost) from orders where userid = ? and orderstatusid = 3";
String sql2 = "select * from vidmember where id = ?";
/*
* 根據id查找出該人消費的總金額。
* */
public int MoneyfindById(int id) {
int a = 0;
Connection conn = null;
PreparedStatement pst = null;
ResultSet rs = null;
try {
Class.forName("oracle.jdbc.driver.OracleDriver");
conn = DriverManager.getConnection(url, username, pwd);
pst = conn.prepareStatement(sql);
pst.setInt(1,id);
rs = pst.executeQuery();
if(rs.next()){
a = rs.getInt("sum(cost)");
}
} catch (ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return a;
}
『捌』 java連接oracle
應該是這里錯了
ResultSet ji1 = (ResultSet) cs.getObject(6);
改成
ResultSet ji1 = (ResultSet) cs.getObject(5);
設值是1開始，取值從0開始。
『玖』 java與oracle連接
192.168.3.9是資料庫ip地址，1521資料庫的訪問埠