String url = "jdbc:postgresql://localhost:5432/mydb"; String user = "user"; String password = "password"; Connection conn = DriverManager.getConnection(url, user, password); 此外,还可以根据需要添加其他连接参数,例如设置字符编码为UTF-8: text jdbc:postgresql://localhost:5432/mydb?currentSchema...
String url = "jdbc:postgresql://localhost:5432/mydatabase"; String username = "myusername"; String password = "mypassword"; Connection connection = DriverManager.getConnection(url, username, password); 创建SQL语句:使用SQL语句创建一个插入数据的PreparedStatement对象。例如: 代码语言:txt 复制 St...
使用Java中的JDBC连接PostgreSQL数据库，并通过ResultSet获取元数据信息。public static void main(String[] args)throws SQLException { Connection con = DriverManager.getConnection("", "", "");String catalog = con.getCatalog();System. out.println("catalog: " +catalog);DatabaseMetaData databaseMetaDat...
- org.postgresql.Driver,该参数需要jar包,通过maven配置更加简单。 - jdbc:postgresql://localhost:5432/School,连接的本地postgreSQL,School是数据库名称 - user和passwd自然不用说,配置PG的时候自然会设置,默认user为postgres importjava.sql.*;publicclassPostgreSQLJDBC{publicstaticvoidmain(Stringargs[]){Connection...
("org.postgresql.Driver");String url="jdbc:postgresql://localhost:5432/dbname";String username="username";String password="password";connection=DriverManager.getConnection(url,username,password);// 创建并执行查询Statement statement=connection.createStatement();ResultSet resultSet=statement.executeQuery("...
publicclassDBConnection{ publicstaticvoidmain(String[]args) { Stringuser="postgres"; Stringpassword="19901231"; //格式为:jdbc:Database Type://IP Address:Port/Database Name //比如MySQL为:jdbc:mysql://localhost/newDB Stringurl="jdbc:postgresql://localhost:5432/geopw"; ...
publicstaticvoidmain(String[]args){ // TODO Auto-generated method stub try{ Class.forName("org.postgresql.Driver").newInstance(); StringconnectUrl="jdbc:postgresql://127.0.0.1:5432/postgres"; Connectionconn=DriverManager.getConnection(connectUrl,"postgres","sophie"); ...
public static void main(String[] args) { try { String url = "jdbc:postgresql://{ip}:{port}/{dbName}"; Class.forName("org.postgresql.Driver"); Connection connection= DriverManager.getConnection(url, "userName", "password"); String sql ="select * from tableName"; ...
Connection con; Statement st; ResultSet rs;// shop 为数据库名Stringurl="jdbc:postgresql://localhost:5432/shop";// user 为数据库 shop 的拥有者名Stringuser="postgres";Stringpassword="***";// 加载 JDBC 驱动器Class.forName("org.postgresql.Driver");Enumeratione=DriverManager.getDrivers();for(...