Simple Batch read of external insert Files, insert into DB, batch insert into db

Simple Batch read of external insert Files, insert into DB, batch insert into db

Package com. tongxiang. item. base. dao; import java. io. bufferedReader; import java. io. file; import java. io. fileNotFoundException; import java. io. fileReader; import java. io. IOException; import java. SQL. connection; import java. SQL. driverManager; import java. SQL. SQLException; import java. SQL. statement; import java. util. arrays; import org. apache. commons. lang. stringUtils; public class ImportFromSql {private static fin Al String URL = "jdbc: oracle: thin: @ xxx. xxx. xxx. xxx: 1521: orcl "; private static final String USER =" user "; private static final String PASSWORD =" password "; private static Connection CONN = null; static {try {Class. forName ("oracle. jdbc. driver. oracleDriver "); CONN = DriverManager. getConnection (URL, USER, PASSWORD);} catch (SQLException e) {e. printStackTrace ();} catch (Exception e) {e. printSta CkTrace () ;}} public static void main (String [] args) throws Exception {try {// insert file data format // C :\\ TEST. SQL // -------------------------- // insert (...) values (...); // insert (...) values (...); // insert (...) values (...); // -------------------------- String sqlFile = "C: \ TEST. SQL "; // Number of batches processed each time int batchCnt = 100; insertSqlBacth (CONN, sqlFile, batchCnt);} finally {CONN. c Lose () ;}/ *** input the connection to execute the SQL script file, in this way, the ** @ param database Connection * @ param file path * @ param number of each batch processing */public static void insertSqlBacth (Connection conn, string sqlFile, int batchCnt) throws Exception {Statement stmt = null; // obtain the File file File = new File (sqlFile) from a given position; BufferedReader reader = null; try {reader = new BufferedReader (new FileReader (file); // The cache String temp = null for each file read; int I = 0; int mod = 0; stmt = conn. createStatement (); while (temp = reader. readLine ())! = Null) {I ++; stmt. addBatch (StringUtils. chomp (temp. trim (), ";"); mod = I % batchCnt; if (mod = 0) {int [] rows = stmt.exe cuteBatch (); conn. commit (); System. out. println ("Row count:" + Arrays. toString (rows); stmt. close (); stmt = conn. createStatement () ;}} if (mod! = 0) {int [] rows = stmt.exe cuteBatch (); conn. commit (); System. out. println ("Row count:" + Arrays. toString (rows); stmt. close () ;}} catch (FileNotFoundException e) {e. printStackTrace ();} catch (IOException e) {e. printStackTrace ();} finally {// close the file stream if (reader! = Null) {try {reader. close () ;}catch (IOException e) {e. printStackTrace ();}}}}}