Download jdbc:
https://www.microsoft.com/zh-cn/download/confirmation.aspx?id=11774
Database Connectivity core code:
package test;
the java.sql.Connection Import;
Import the java.sql.DriverManager;
Import the java.sql.ResultSet;
Import java.sql.SQLException;
Import the java.sql.Statement;
public class DbUtils {
public static void main (String [] args) {
{the try
the Class.forName ( "com.microsoft.sqlserver.jdbc.SQLServerDriver");
} the catch (a ClassNotFoundException E) {
System.err.println ( "drive not found");
}
System.out.println ( "database-driven success ");
the try {
String connectDB =" jdbc: sqlserver: // localhost \\ SQLEXPRESS: 1434; DatabaseName = MXJ ";
String the user =" SA ";
// username and password here as long as the attention can not be wrong
Password = String "MXJmxj514";
Connection CON = DriverManager.getConnection (connectDB, the User, password);
// connect to the database objects
System.out.println ( "Database connection successful");
of Statement stmt = con.createStatement ();
// create a SQL command object // create a table
System.out.println ( "start creating the table");
// String query1 = "TABLE1 drop the table";
// create table SQL statement
String query = "create table TABLE1 ( ID NCHAR (4 ) a PRIMARY KEY the NOT NULL, the NCHAR NAME (10), T "+" the NCHAR the EL (. 11)) ";
// stmt.executeUpdate (Query1);
// execute SQL command object
stmt.executeUpdate (query);
// execute SQL command objects
System.out.println ( "Table successfully created");
// input data
System.out.println (" start insert data ");
String a1 = "INSERT INTO TABLE1 VALUES ( '0001', 'Li Hua', '13933209898')";
// insert the data SQL statements
String a2 = "INSERT INTO TABLE1 VALUES ( '0002', 'WANG', '13,698,760,987') ";
String A3 =" the INSERT the INTO TABLE1 the VALUES ( '0003', 'Zhang brother', '1786308096') ";
stmt.executeUpdate (A1);
// execute SQL command object
stmt.executeUpdate (a2);
stmt.executeUpdate (a3);
System.out.println ( "Inserting data success");
// read data
System.out.println ( "start reading");
ResultSet rs = stmt.executeQuery ( "the SELECT * the FROM TABLE1");
// Returns the SQL statement query result set (the set)
// cycle of the output of each record
while (rs.next ()) {
The output of each field //
System.out.println (rs.getString ( "ID") + "\ T" + rs.getString ( "NAME"));
}
System.out.println ( "read complete");
stmt.executeUpdate ( "update dbo.TABLE1 set NAME = ' LIU' where ID = '0002'");
// if not followed by the conditions where, the value field is updated all columns
System.out.println ( "modify data complete ");
RS = stmt.executeQuery (" the FROM TABLE1 the SELECT * ");
// returns the query result set of SQL statements (set)
// cycle of the output of each record
the while (rs.next ()) {
// for each output field
System.out.println (rs.getString ( "ID") + "\ t" + rs.getString ( "NAME")); + "\ t" + rs.getString("NAME"));
}
String sql = "delete from TABLE1 where id='0001'";
stmt.executeUpdate (SQL);
System.out.println ( "complete delete data");
RS = stmt.executeQuery ( "the FROM TABLE1 the SELECT *");
/ / SQL statements that return query result set (set)
// cycle of the output of each record
the while (rs.next ()) {
// for each output field
System.out.println (rs.getString ( "ID") + "\ t "+ rs.getString (" NAME "));
}
// close the connection
stmt.close ();
// close connection command object
con.close ();
// close the connection
} the catch (SQLException E) {
E.printStackTrace ();
of System.out.print (e.getErrorCode ());
System.out.println ( "database connection error");
System.exit(0);
}
}
}