JDBC Driver java.sql.Connection interface provides connection.setAutoCommit(), connection.commit() and connection.rollback() methods for enabling transactional access to YugabyteDB Database.For example:Connection conn = DriverManager.getConnection("jdbc:postgresql://localhost:5433/yugabyte","yugabyte", "...
3. 使用jdbc连接数据库: import java.sql.*; import groovy.sql.Sql def connectionString = "jdbc:postgresql://10.15.2.16:5432/testdb" // jdbc:mysql://localhost/db?useUnicode=true&characterEncoding=UTF-8' // def username = "test" def password = "mypwd123" def driver = "org.postgresql.Dri...
func.execute(); String cursorName = func.getString(1); func.close(); **Example 6.5. Calling a stored procedure This example shows how to call a PostgreSQL procedure that uses transaction control. // set up a connection String url = "jdbc:postgresql://localhost/test"; Properties props = ...
System.setProperty("jdbc.drivers","org.postgresql.Driver"); 连接到数据库 在Java程序中,我们可以在代码中打开一个数据库连接,例如 String url="jdbc:postgresql:corejava"; String username=""dbuser; String password="secret"; Connection conn=DriverManager.getConnection(url,username,password); 执行SQL语句 ...
Stringurl="jdbc:postgresql://localhost:5432/geopw"; Stringdriver="org.postgresql.Driver"; StringtableName="userinfo"; Stringsqlstr=""; Connectioncon=null; PreparedStatementstmt=null; try{ Class.forName(driver); con=DriverManager.getConnection(url,user,password); ...
To connect, you need to get aConnectioninstance from JDBC. To do this, you use theDriverManager.getConnection()method: Connection db = DriverManager.getConnection(url, username, password); Connection Parameters In addition to the standard connection parameters the driver supports a number of additional...
- 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...
java.sql.DriverManager#getConnection(java.lang.String, java.util.Properties, java.lang.Class<?>) 利用org.postgresql.Driver 的 jdbc 驱动去连接数据库 org.postgresql.Driver#connect 调用makeConnection 去连接数据库 org.postgresql.Driver#makeConnection ...
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"); ...
The following appears in the atlassian-confluence.log file, indicating a connection refused when using Confluence with JDBC direct connection string: 1 org.postgresql.util.PSQLException: Connection refused. Check that the hostname and port are correct and that the postmaster is accepting TCP/IP conne...