无法使用 java 连接到 postgresql
Can't connect to postgresql with java
在这个简单的示例中,我无法连接到 postgresql table。我不知道出了什么问题。请帮忙。
package postgresql.jdbc;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.util.Properties;
public class PostgresWithJDBCConnection {
public static void main(String[] args) {
// establishes database connection
try (Connection connection = DriverManager.getConnection("jdbc:postgresql://127.0.0.1:5432/students", "postgres", "postgres")) {
System.out.println("Connection established successfully");
} catch (SQLException e) {
System.out.print(e.getMessage());
}
}
}
控制台returns
"No suitable driver found for jdbc:postgresql://127.0.0.1:5432/students"
下载 postgresql jdbc (https://jdbc.postgresql.org/) 并将其添加到您的类路径
在这个简单的示例中,我无法连接到 postgresql table。我不知道出了什么问题。请帮忙。
package postgresql.jdbc;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.util.Properties;
public class PostgresWithJDBCConnection {
public static void main(String[] args) {
// establishes database connection
try (Connection connection = DriverManager.getConnection("jdbc:postgresql://127.0.0.1:5432/students", "postgres", "postgres")) {
System.out.println("Connection established successfully");
} catch (SQLException e) {
System.out.print(e.getMessage());
}
}
}
控制台returns
"No suitable driver found for jdbc:postgresql://127.0.0.1:5432/students"
下载 postgresql jdbc (https://jdbc.postgresql.org/) 并将其添加到您的类路径