Why Spring's jdbcTemplate.batchUpdate() so slow?

Question

I\'m trying to find the faster way to do batch insert.

I tried to insert several batches with jdbcTemplate.update(String sql), wher

Answer 1

Solution given by @Rakesh worked for me. Significant improvement in performance. Earlier time was 8 min, with this solution taking less than 2 min.

DataSource ds = jdbcTemplate.getDataSource();
Connection connection = ds.getConnection();
connection.setAutoCommit(false);
String sql = "insert into employee (name, city, phone) values (?, ?, ?)";
PreparedStatement ps = connection.prepareStatement(sql);
final int batchSize = 1000;
int count = 0;

for (Employee employee: employees) {

    ps.setString(1, employee.getName());
    ps.setString(2, employee.getCity());
    ps.setString(3, employee.getPhone());
    ps.addBatch();

    ++count;

    if(count % batchSize == 0 || count == employees.size()) {
        ps.executeBatch();
        ps.clearBatch(); 
    }
}

connection.commit();
ps.close();