How to integrate the OJDBC10 framework in the Java class library
Integrate OJDBC10 framework in the Java class library
Overview:
OJDBC10 is the official JDBC (Java database connection) driver provided by Oracle to connect to the Oracle database.OJDBC10 provides seamless integration and interoperability with the Oracle database.This article will introduce how to integrate the OJDBC10 framework in the Java project.
step:
The following is the step of integrating the OJDBC10 framework in the Java class library:
Step 1: Download OJDBC10 driver program
First, you need to download the OJDBC10 driver from the official website of Oracle (https://www.oracle.com/database/technologies/appdev/jdbc-downloads.html).After the download is completed, you will get a jar file that contains the core function of OJDBC10.
Step 2: Add the OJDBC10 driver to the project
Add the downloaded OJDBC10 jar file to the class undercuting path in your Java project.You can manually copy the jar file to the project directory, add it to the construction path, or use the construction tool (such as Maven or Gradle) to declare its dependence in the project configuration file.
For the Maven project, you can add the following dependencies to the pom.xml file:
<dependencies>
<dependency>
<groupId>com.oracle.database.jdbc</groupId>
<artifactId>ojdbc10</artifactId>
<version>19.9.0.0</version>
</dependency>
</dependencies>
Step 3: Load and register OJDBC10 driver
Before writing code, you need to load and register the OJDBC10 driver.The following is an example code that uses the static loading method of class class to load and register the driver:
import java.sql.DriverManager;
import java.sql.SQLException;
public class Ojdbc10IntegrationExample {
public static void main(String[] args) {
String jdbcUrl = "jdbc:oracle:thin:@localhost:1521:xe";
String username = "your_username";
String password = "your_password";
try {
// Static loading OJDBC10 driver
Class.forName("oracle.jdbc.driver.OracleDriver");
// Register OJDBC10 driver program
DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());
// Create a database connection
Connection connection = DriverManager.getConnection(jdbcUrl, username, password);
// Perform the database operation ...
// Turn off the connection
connection.close();
} catch (ClassNotFoundException | SQLException e) {
e.printStackTrace();
}
}
}
In the above sample code, you need to replace the "YOUR_USERNAME" and "Your_password" to the username and password of your Oracle database.In addition, you also need to replace the "JDBC: Oracle: Thin: @LocalHost: 1521: XE" to connect to the URL of your database.
Step 4: Use OJDBC10 driver to connect Oracle database
You can use the Connection object of the OJDBC10 driver to perform various database operations.The following is an example code that uses the OJDBC10 driver to connect the Oracle database and perform the query:
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
public class Ojdbc10IntegrationExample {
public static void main(String[] args) {
String jdbcUrl = "jdbc:oracle:thin:@localhost:1521:xe";
String username = "your_username";
String password = "your_password";
try {
Class.forName("oracle.jdbc.driver.OracleDriver");
DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());
Connection connection = DriverManager.getConnection(jdbcUrl, username, password);
Statement statement = connection.createStatement();
// Execute the query
ResultSet resultSet = statement.executeQuery("SELECT * FROM employees");
// Process query results
while (resultSet.next()) {
int employeeId = resultSet.getInt("employee_id");
String firstName = resultSet.getString("first_name");
String lastName = resultSet.getString("last_name");
System.out.println ("Employee ID:" + Employeeid);
System.out.println("姓: " + firstName);
System.out.println ("name:" + Lastname);
System.out.println("---------------------------");
}
resultSet.close();
statement.close();
connection.close();
} catch (ClassNotFoundException | SQLException e) {
e.printStackTrace();
}
}
}
In the above sample code, we use the Statement object to perform query and use the ResultSet object to traverse the query results.You can modify and expand code according to your specific needs.
Precautions:
-Ye ensures that you have added JAR files to the OJDBC10 driver to the project.
-In the processing database connection and resources, be sure to turn off the connection and release resources when it is appropriate.
-Pe Yours to ensure that your database is connected to the URL, the username and password are correct and matched with your database configuration.
