java访问oracle

⑴ java 连接oracle

应该是你的连接字符串的问题，你看一下这个链接的内容
http://..com/question/161407728.html

⑵ 如何用Java实现连接Oracle

1、工作环境：myeclipse中->新建java_oracle工程->新建包com.zp->新建java_oracle_jdbc.java类
2、需要配置Oracle数据库驱动
java工程（java_oracle）—>右键属性(Properties)->Java Build Path->Libraries->Add External JARs->添加oracle安装目录E:\oracle\proct\10.1.0\Db_1\jdbc\lib下的“classes12.jar”文件；
每次新建一个不同工程都需要配置一次
3、代码如下：
package com.zp;
import java.sql.*;
public class java_oracle_jdbc {
public static void main(String[] args) {
// TODO Auto-generated method stub
try
{
//加载驱动
Class.forName("oracle.jdbc.driver.OracleDriver");
//得到连接
Connection ct=DriverManager.getConnection("jdbc:oracle:thin:@127.0.0.1:1521:simlink", "scott", "tiger");

Statement sm=ct.createStatement();
ResultSet rs=sm.executeQuery("select * from emp");
while(rs.next())
{
System.out.println("用户名:"+rs.getString(2));
}
rs.close();
sm.close();
ct.close();
}
catch(Exception e)
{
e.printStackTrace();
}
}
}

⑶ java怎么调用oracle的过程

java下实现调用oracle的存储过程和函数
在oracle下创建一个test的账户，然后按一下步骤执行：
1.创建表：STOCK_PRICES

--创建表格
CREATE TABLE STOCK_PRICES(
RIC VARCHAR(6) PRIMARY KEY,
PRICE NUMBER(7,2),
UPDATED DATE );

2.插入测试数据：

--插入数据
INSERT INTO stock_prices values('1111',1.0,SYSDATE);
INSERT INTO stock_prices values('1112',2.0,SYSDATE);
INSERT INTO stock_prices values('1113',3.0,SYSDATE);
INSERT INTO stock_prices values('1114',4.0,SYSDATE);

3.建立一个返回游标： PKG_PUB_UTILS

--建立一个返回游标
CREATE OR REPLACE PACKAGE PKG_PUB_UTILS IS
--动态游标
TYPE REFCURSOR IS REF CURSOR;
END PKG_PUB_UTILS;

4.创建和存储过程：P_GET_PRICE

--创建存储过程
CREATE OR REPLACE PROCEDURE P_GET_PRICE
(
AN_O_RET_CODE OUT NUMBER,
AC_O_RET_MSG OUT VARCHAR2,
CUR_RET OUT PKG_PUB_UTILS.REFCURSOR,
AN_I_PRICE IN NUMBER
)
IS
BEGIN
AN_O_RET_CODE := 0;
AC_O_RET_MSG := '操作成功';

OPEN CUR_RET FOR
SELECT * FROM STOCK_PRICES WHERE PRICE<AN_I_PRICE;
EXCEPTION
WHEN OTHERS THEN
AN_O_RET_CODE := -1;
AC_O_RET_MSG := '错误代码:' || SQLCODE || CHR(13) || '错误信息:' || SQLERRM;
END P_GET_PRICE;

5.创建函数：

--创建函数：F_GET_PRICE
CREATE OR REPLACE FUNCTION F_GET_PRICE(v_price IN NUMBER)
RETURN PKG_PUB_UTILS.REFCURSOR
AS
stock_cursor PKG_PUB_UTILS.REFCURSOR;
BEGIN
OPEN stock_cursor FOR
SELECT * FROM stock_prices WHERE price < v_price;
RETURN stock_cursor;
END;

6.JAVA调用存储过程返回结果集
代码示例：JDBCoracle10G_INVOKEPROCEDURE.java

import java.sql.*;
import oracle.jdbc.OracleCallableStatement;
import oracle.jdbc.OracleTypes;

/* 本例是通过调用oracle的存储过程来返回结果集:
* oracle 9i、10G 的jdbc由1个jar包组成：classes12.zip
*/
public class JDBCoracle10G_INVOKEPROCEDURE {
Connection conn = null;
Statement statement = null;
ResultSet rs = null;
CallableStatement stmt = null;

String driver;
String url;
String user;
String pwd;
String sql;
String in_price;

public JDBCoracle10G_INVOKEPROCEDURE()
{
driver = "oracle.jdbc.driver.OracleDriver";
url = "jdbc:oracle:thin:@localhost:1521:ORCL";
// oracle 用户
user = "test";
// oracle 密码
pwd = "test";
init();
// mysid：必须为要连接机器的sid名称，否则会包以下错：
// java.sql.SQLException: Io 异常: Connection
// refused(DESCRIPTION=(TMP=)(VSNNUM=169870080)(ERR=12505)(ERROR_STACK=(ERROR=(CODE=12505)(EMFI=4))))
// 参考连接方式:
// Class.forName( "oracle.jdbc.driver.OracleDriver" );
// cn = DriverManager.getConnection(
// "jdbc:oracle:thin:@MyDbComputerNameOrIP:1521:ORCL", sUsr, sPwd );

}

public void init() {
System.out.println("oracle jdbc test");
try {
Class.forName(driver);
System.out.println("driver is ok");
conn = DriverManager.getConnection(url, user, pwd);
System.out.println("conection is ok");
statement = conn.createStatement();
// conn.setAutoCommit(false);
// 输入参数
in_price = "3.0";
// 调用函数
stmt = conn.prepareCall("call P_GET_PRICE(?,?,?,?)");
stmt.registerOutParameter(1, java.sql.Types.FLOAT);
stmt.registerOutParameter(2, java.sql.Types.CHAR);
stmt.registerOutParameter(3, oracle.jdbc.OracleTypes.CURSOR);
stmt.setString(4, in_price);
stmt.executeUpdate();
int retCode = stmt.getInt(1);
String retMsg = stmt.getString(2);
if (retCode == -1) { // 如果出错时，返回错误信息
System.out.println("报错！");
} else {
// 取的结果集的方式一：
rs = ((OracleCallableStatement) stmt).getCursor(3);
// 取的结果集的方式二：
// rs = (ResultSet) stmt.getObject(3);
String ric;
String price;
String updated;
// 对结果进行输出
while (rs.next()) {
ric = rs.getString(1);
price = rs.getString(2);
updated = rs.getString(3);
System.out.println("ric:" + ric + ";-- price:" + price
+ "; --" + updated + "; ");
}
}

} catch (Exception e) {
e.printStackTrace();
} finally {
System.out.println("close ");
}
}

public static void main(String args[])// 自己替换［］
{
new JDBCoracle10G_INVOKEPROCEDURE();
}
}

7.开发JAVA调用函数返回结果集
代码示例：JDBCoracle10G_INVOKEFUNCTION.java

import java.sql.*;
import oracle.jdbc.OracleCallableStatement;
import oracle.jdbc.OracleTypes;

/*
/* 本例是通过调用oracle的函数来返回结果集:
* oracle 9i、10G 的jdbc由1个jar包组成：classes12.zip
*/
public class JDBCoracle10G_INVOKEFUNCTION {
Connection conn = null;
Statement statement = null;
ResultSet rs = null;
CallableStatement stmt = null;

String driver;
String url;
String user;
String pwd;
String sql;
String in_price;

public JDBCoracle10G_INVOKEFUNCTION()
{
driver = "oracle.jdbc.driver.OracleDriver";
url = "jdbc:oracle:thin:@localhost:1521:ORCL";
// oracle 用户
user = "test";
// oracle 密码
pwd = "test";
init();
// mysid：必须为要连接机器的sid名称，否则会包以下错：
// java.sql.SQLException: Io 异常: Connection
// refused(DESCRIPTION=(TMP=)(VSNNUM=169870080)(ERR=12505)(ERROR_STACK=(ERROR=(CODE=12505)(EMFI=4))))
// 参考连接方式:
// Class.forName( "oracle.jdbc.driver.OracleDriver" );
// cn = DriverManager.getConnection(
// "jdbc:oracle:thin:@MyDbComputerNameOrIP:1521:ORCL", sUsr, sPwd );
}

public void init() {
System.out.println("oracle jdbc test");
try {
Class.forName(driver);
System.out.println("driver is ok");
conn = DriverManager.getConnection(url, user, pwd);
System.out.println("conection is ok");
statement = conn.createStatement();
// conn.setAutoCommit(false);
// 输入参数
in_price = "5.0";
// 调用函数
stmt = conn.prepareCall("{? = call F_GET_PRICE(?)}");
// stmt.registerOutParameter(1, java.sql.Types.FLOAT);
// stmt.registerOutParameter(2, java.sql.Types.CHAR);
stmt.registerOutParameter(1, oracle.jdbc.OracleTypes.CURSOR);
stmt.setString(2, in_price);
stmt.executeUpdate();
// 取的结果集的方式一：
rs = ((OracleCallableStatement) stmt).getCursor(1);
// 取的结果集的方式二：
// rs = (ResultSet) stmt.getObject(1);
String ric;
String price;
String updated;

while (rs.next()) {
ric = rs.getString(1);
price = rs.getString(2);
updated = rs.getString(3);
System.out.println("ric:" + ric + ";-- price:" + price + "; --"
+ updated + "; ");
}

} catch (Exception e) {
e.printStackTrace();
} finally {
System.out.println("close ");
}
}

public static void main(String args[])// 自己替换［］
{
new JDBCoracle10G_INVOKEFUNCTION();
}
}

⑷ 怎么实现用java远程访问oracle数据库

这个是完全没有问题的。

先期准备：
1、两台电脑必须要联网，能够访问到
2、将oracle的驱动程序拷贝到你的java的电脑上，并设置到环境变量中。

java代码
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;

public class DbTest {
public static void main(String[] args) {
Connection conn = null;
PreparedStatement prstm = null;
ResultSet rs = null;
try {
Class.forName("oracle.jdbc.driver.OracleDriver").newInstance();
String url="jdbc:oracle:thin:@ip:port:orcl"; //数据库连接字符串，需要替换ip,port,orcl
String user="user"; //用户名，需要替换你的数据库的用户名
String password="pswd"; //密码，需要替换为对应的密码
conn = DriverManager.getConnection(url,user,password); //获取连接

prstm = conn.prepareStatement("SELECT 1 TEST_ID FROM DUAL");
rs = prstm.executeQuery();
while (rs.next()) {
System.out.println("查询结果为：" + rs.getInt("TEST_ID"));
}
} catch (InstantiationException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IllegalAccessException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} finally {
//使用完毕进行相关内容的关闭，注意相关顺序
if (rs != null) {
try {
rs.close();
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if (prstm != null) {
try {
prstm.close();
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if (conn != null) {
try {
conn.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
}
}

}

⑸ java怎么调用oracle的过程

参考下面代码
java下实现调用oracle的存储过程和函数
在oracle下创建一个test的账户，然后按一下步骤执行：
1.创建表：STOCK_PRICES

--创建表格
CREATE TABLE STOCK_PRICES(
RIC VARCHAR(6) PRIMARY KEY,
PRICE NUMBER(7,2),
UPDATED DATE );

2.插入测试数据：

--插入数据
INSERT INTO stock_prices values('1111',1.0,SYSDATE);
INSERT INTO stock_prices values('1112',2.0,SYSDATE);
INSERT INTO stock_prices values('1113',3.0,SYSDATE);
INSERT INTO stock_prices values('1114',4.0,SYSDATE);

3.建立一个返回游标： PKG_PUB_UTILS

--建立一个返回游标
CREATE OR REPLACE PACKAGE PKG_PUB_UTILS IS
--动态游标
TYPE REFCURSOR IS REF CURSOR;
END PKG_PUB_UTILS;

4.创建和存储过程：P_GET_PRICE

--创建存储过程
CREATE OR REPLACE PROCEDURE P_GET_PRICE
(
AN_O_RET_CODE OUT NUMBER,
AC_O_RET_MSG OUT VARCHAR2,
CUR_RET OUT PKG_PUB_UTILS.REFCURSOR,
AN_I_PRICE IN NUMBER
)
IS
BEGIN
AN_O_RET_CODE := 0;
AC_O_RET_MSG := '操作成功';

OPEN CUR_RET FOR
SELECT * FROM STOCK_PRICES WHERE PRICE<AN_I_PRICE;
EXCEPTION
WHEN OTHERS THEN
AN_O_RET_CODE := -1;
AC_O_RET_MSG := '错误代码:' || SQLCODE || CHR(13) || '错误信息:' || SQLERRM;
END P_GET_PRICE;

5.创建函数：

--创建函数：F_GET_PRICE
CREATE OR REPLACE FUNCTION F_GET_PRICE(v_price IN NUMBER)
RETURN PKG_PUB_UTILS.REFCURSOR
AS
stock_cursor PKG_PUB_UTILS.REFCURSOR;
BEGIN
OPEN stock_cursor FOR
SELECT * FROM stock_prices WHERE price < v_price;
RETURN stock_cursor;
END;

6.JAVA调用存储过程返回结果集
代码示例：JDBCoracle10G_INVOKEPROCEDURE.java

import java.sql.*;
import oracle.jdbc.OracleCallableStatement;
import oracle.jdbc.OracleTypes;

/* 本例是通过调用oracle的存储过程来返回结果集:
* oracle 9i、10G 的jdbc由1个jar包组成：classes12.zip
*/
public class JDBCoracle10G_INVOKEPROCEDURE {
Connection conn = null;
Statement statement = null;
ResultSet rs = null;
CallableStatement stmt = null;

String driver;
String url;
String user;
String pwd;
String sql;
String in_price;

public JDBCoracle10G_INVOKEPROCEDURE()
{
driver = "oracle.jdbc.driver.OracleDriver";
url = "jdbc:oracle:thin:@localhost:1521:ORCL";
// oracle 用户
user = "test";
// oracle 密码
pwd = "test";
init();
// mysid：必须为要连接机器的sid名称，否则会包以下错：
// java.sql.SQLException: Io 异常: Connection
// refused(DESCRIPTION=(TMP=)(VSNNUM=169870080)(ERR=12505)(ERROR_STACK=(ERROR=(CODE=12505)(EMFI=4))))
// 参考连接方式:
// Class.forName( "oracle.jdbc.driver.OracleDriver" );
// cn = DriverManager.getConnection(
// "jdbc:oracle:thin:@MyDbComputerNameOrIP:1521:ORCL", sUsr, sPwd );

}

public void init() {
System.out.println("oracle jdbc test");
try {
Class.forName(driver);
System.out.println("driver is ok");
conn = DriverManager.getConnection(url, user, pwd);
System.out.println("conection is ok");
statement = conn.createStatement();
// conn.setAutoCommit(false);
// 输入参数
in_price = "3.0";
// 调用函数
stmt = conn.prepareCall("call P_GET_PRICE(?,?,?,?)");
stmt.registerOutParameter(1, java.sql.Types.FLOAT);
stmt.registerOutParameter(2, java.sql.Types.CHAR);
stmt.registerOutParameter(3, oracle.jdbc.OracleTypes.CURSOR);
stmt.setString(4, in_price);
stmt.executeUpdate();
int retCode = stmt.getInt(1);
String retMsg = stmt.getString(2);
if (retCode == -1) { // 如果出错时，返回错误信息
System.out.println("报错！");
} else {
// 取的结果集的方式一：
rs = ((OracleCallableStatement) stmt).getCursor(3);
// 取的结果集的方式二：
// rs = (ResultSet) stmt.getObject(3);
String ric;
String price;
String updated;
// 对结果进行输出
while (rs.next()) {
ric = rs.getString(1);
price = rs.getString(2);
updated = rs.getString(3);
System.out.println("ric:" + ric + ";-- price:" + price
+ "; --" + updated + "; ");
}
}

} catch (Exception e) {
e.printStackTrace();
} finally {
System.out.println("close ");
}
}

public static void main(String args[])// 自己替换［］
{
new JDBCoracle10G_INVOKEPROCEDURE();
}
}

7.开发JAVA调用函数返回结果集
代码示例：JDBCoracle10G_INVOKEFUNCTION.java

import java.sql.*;
import oracle.jdbc.OracleCallableStatement;
import oracle.jdbc.OracleTypes;

/*
/* 本例是通过调用oracle的函数来返回结果集:
* oracle 9i、10G 的jdbc由1个jar包组成：classes12.zip
*/
public class JDBCoracle10G_INVOKEFUNCTION {
Connection conn = null;
Statement statement = null;
ResultSet rs = null;
CallableStatement stmt = null;

String driver;
String url;
String user;
String pwd;
String sql;
String in_price;

public JDBCoracle10G_INVOKEFUNCTION()
{
driver = "oracle.jdbc.driver.OracleDriver";
url = "jdbc:oracle:thin:@localhost:1521:ORCL";
// oracle 用户
user = "test";
// oracle 密码
pwd = "test";
init();
// mysid：必须为要连接机器的sid名称，否则会包以下错：
// java.sql.SQLException: Io 异常: Connection
// refused(DESCRIPTION=(TMP=)(VSNNUM=169870080)(ERR=12505)(ERROR_STACK=(ERROR=(CODE=12505)(EMFI=4))))
// 参考连接方式:
// Class.forName( "oracle.jdbc.driver.OracleDriver" );
// cn = DriverManager.getConnection(
// "jdbc:oracle:thin:@MyDbComputerNameOrIP:1521:ORCL", sUsr, sPwd );
}

public void init() {
System.out.println("oracle jdbc test");
try {
Class.forName(driver);
System.out.println("driver is ok");
conn = DriverManager.getConnection(url, user, pwd);
System.out.println("conection is ok");
statement = conn.createStatement();
// conn.setAutoCommit(false);
// 输入参数
in_price = "5.0";
// 调用函数
stmt = conn.prepareCall("{? = call F_GET_PRICE(?)}");
// stmt.registerOutParameter(1, java.sql.Types.FLOAT);
// stmt.registerOutParameter(2, java.sql.Types.CHAR);
stmt.registerOutParameter(1, oracle.jdbc.OracleTypes.CURSOR);
stmt.setString(2, in_price);
stmt.executeUpdate();
// 取的结果集的方式一：
rs = ((OracleCallableStatement) stmt).getCursor(1);
// 取的结果集的方式二：
// rs = (ResultSet) stmt.getObject(1);
String ric;
String price;
String updated;

while (rs.next()) {
ric = rs.getString(1);
price = rs.getString(2);
updated = rs.getString(3);
System.out.println("ric:" + ric + ";-- price:" + price + "; --"
+ updated + "; ");
}

} catch (Exception e) {
e.printStackTrace();
} finally {
System.out.println("close ");
}
}

public static void main(String args[])// 自己替换［］
{
new JDBCoracle10G_INVOKEFUNCTION();
}
}

⑹ 怎么用java连接oracle数据库，需要详细解释

1)首先你要有java连接oracle数据库的驱动类,下载好后导入到工程里

2)代码:
import java.sql.*;

public class JDBCTest {

/**
* @param args
* @throws ClassNotFoundException
*/
public static void main(String[] args)
throws ClassNotFoundException, SQLException{
//1.准备参数
String ip = "192.168.0.26";
String sid = "tarena";
String port = "1521";
String dbUser = "openlab";
String dbPassword = "open123";
String driver
= "oracle.jdbc.driver.OracleDriver";

//2.构造驱动实例
Class.forName(driver);

//3.创建连接
//连接字符串是固定的形式,oracle的形式:
String url
= "jdbc:oracle:thin:@"
+ ip + ":" + port + ":" + sid;
Connection conn
= DriverManager.getConnection
(url, dbUser, dbPassword);
//4.执行SQL语句
String sql = "select id, password, name from user_sd1104 " +
"where id = 1001 and password = '1234'";
Statement stmt = conn.createStatement();
ResultSet rs
= stmt.executeQuery(sql);//执行sql语句
while(rs.next()){
int id = rs.getInt(1);
String pwd = rs.getString(2);
String name = rs.getString(3);
System.out.println("welcome," + name);
}
rs.close();
stmt.close();
conn.close();
}

}

⑺ java连接oracle数据库

Connection conn = null;
Class.forName("oracle.jdbc.driver.OracleDriver");//加入oracle的驱动，“”里面是驱动的路径

String url = "jdbc:oracle:thin:@MyDbComputerNameOrIP:1521:ORCL";// 数据库连接，oracle代表链接的是oracle数据库；thin:@MyDbComputerNameOrIP代表的是数据库所在的IP地址（可以保留thin:）；1521代表链接数据库的端口号；ORCL代表的是数据库名称

String UserName = "root";// 数据库用户登陆名 ( 也有说是 schema 名字的 )

String Password = "2006";// 密码

conn = DriverManager.getConnection(url, UserName, Password);

⑻ 如何用java连接oracle数据库

public class OracleJdbcTest
{
String driverClass = "oracle.jdbc.driver.OracleDriver";

Connection con;

public void init(FileInputStream fs) throws Exception
{
Properties props = new Properties();
props.load(fs);
String url = props.getProperty("db.url");
String userName = props.getProperty("db.user");
String password = props.getProperty("db.password");
Class.forName(driverClass);

con=DriverManager.getConnection(url, userName, password);
}

public void fetch() throws SQLException, IOException
{
PreparedStatement ps = con.prepareStatement("select SYSDATE from al");
ResultSet rs = ps.executeQuery();

while (rs.next())
{
// do the thing you do
}
rs.close();
ps.close();
}

public static void main(String[] args)
{
OracleJdbcTest test = new OracleJdbcTest();
test.init();
test.fetch();
}
}

[代码] db.properties
db.url = jdbc:oracle:thin:@::
db.user = sa
db.password =