MySQL batch insert demo

Mysql Batch insert demo Code

public static void main(String[] args) throws ClassNotFoundException, SQLException {
		final String url = "jdbc:mysql://127.0.0.1/wvp?useUnicode=true&useJDBCCompliantTimezoneShift=true&useLegacyDatetimeCode=false&serverTimezone=UTC";
		final String name = "com.mysql.cj.jdbc.Driver";
		final String user = "root";
		final String password = "1234";
		Connection conn = null;
		//  Specify connection type 
		Class.forName(name);
		//  Get the connection 
		conn = DriverManager.getConnection(url, user, password);
		if (conn != null) {
			System.out.println(" Get connection succeeded ");
			//  The insert 
			batchInsert(conn);
		} else {
			System.out.println(" Failed to get connection ");
		}
	}

	public static void batchInsert(Connection conn) {
		//  Starting time 
		Long begin = System.currentTimeMillis();
		// sql Prefix 
		String sqlPrefix = "INSERT INTO student (name, age) VALUES ";
		try {
			//  preservation sql suffix 
			StringBuffer sqlSuffix = new StringBuffer();
			//  Set the transaction to non auto commit 
			conn.setAutoCommit(false);
			//  Prepare to execute statement 
			PreparedStatement pst = (PreparedStatement) conn.prepareStatement(" ");
			//  The outer loop , Total number of transactions committed 
			for (int i = 1; i <= 100; i++) {
				sqlSuffix = new StringBuffer();
				//  The first j Second submission step size 
				for (int j = 1; j <= 100000; j++) {
					//  structure SQL suffix 
					sqlSuffix.append("('" + "cxx" + j + "'," + 1 + "),");
				}
				//  Build complete SQL
				String sql = sqlPrefix + sqlSuffix.substring(0, sqlSuffix.length() - 1);
				//  Add execution SQL
				pst.addBatch(sql);
				//  Perform the operation 
				pst.executeBatch();
				//  Commit transaction 
				conn.commit();
				//  Clear the last data added 
				sqlSuffix = null;
			}
			//  First class connection 
			pst.close();
			conn.close();
		} catch (SQLException e) {
			e.printStackTrace();
		}
		//  End time 
		Long end = System.currentTimeMillis();
		//  Time consuming 
		System.out.println("1000 Ten thousand data inserts take time  : " + (end - begin) + "ms");
		System.out.println(" Insert complete ");
	}