Java JDBC Insert a record 插入数据

本例以JDBC 和 MY SQL DataBase为基础，来演示执行SQL插入数据，使用Statement和Prepared Statement两种方式。

一，示例代码

连接数据库uilt: MySqlJDBSUtil.java

package com.devnp.jdbc;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;

public class MySqlJDBSUtil {
	private static String driver = "com.mysql.jdbc.Driver";
	private static String url = "jdbc:mysql://127.0.0.1:3306/test?characterEncoding=utf8";
	private static String userName = "root"; // base on your login user name
	private static String password = "!qaz2wsx"; // base on your login user

	public static Connection getConnection() {
		
		Connection connection = null;
		try {
			Class.forName(driver);
			connection = DriverManager.getConnection(url, userName, password);
		} catch (ClassNotFoundException e) {
			e.printStackTrace();
		} catch (SQLException e) {
			e.printStackTrace();
		}
		return connection;
	}

	public static void connectionClose(Connection connection) {
		if (connection != null) {
			try {
				connection.close();
			} catch (SQLException e) {
				e.printStackTrace();
			}
		}
	}
}

插入数据代码：
JDBCInsertRecord.java

package com.devnp.jdbc;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.sql.Statement;

public class JDBCInsertRecord {

	public static void main(String[] args) throws SQLException {
		// TODO Auto-generated method stub
		insertDbTableWithStatement();
		insertDbTableWithPreparedStatement();
	}
	
	/**
	 * 采用 Statement 方式插入数据
	 * @throws SQLException
	 */
	public static void insertDbTableWithStatement() throws SQLException {
		Connection dbConnection = null;
		Statement statement = null;
		
		String sql = "INSERT INTO USER_INFO (USER_ID, USERNAME, CREATED_BY,CREATED_DATE) "
				+ "VALUES (1,'devnp.com','system','2017-03-29')" ;
		
		try {
			dbConnection = MySqlJDBSUtil.getConnection();
			statement = dbConnection.createStatement();

			System.out.println(sql);

			// execute insert SQL stetement
			statement.executeUpdate(sql);

			System.out.println("Record is inserted into USER_INFO table Success!");

		} catch (SQLException e) {

			System.out.println(e.getMessage());

		} finally {

			if (statement != null) {
				statement.close();
			}

			if (dbConnection != null) {
				dbConnection.close();
			}

		}
	}
	
	/**
	 * 采用Prepared Statement 方式插入数据
	 * @throws SQLException
	 */
	public static void insertDbTableWithPreparedStatement() throws SQLException {
		Connection dbConnection = null;
		PreparedStatement preparedStatement = null;
		
		String sql = "INSERT INTO USER_INFO (USER_ID, USERNAME, CREATED_BY,CREATED_DATE) "
				+ "VALUES (2,'devnp.com','system','2017-03-29')" ;
		
		try {
			dbConnection = MySqlJDBSUtil.getConnection();
			preparedStatement = dbConnection.prepareStatement(sql);

			System.out.println(sql);

			// execute insert SQL stetement
			preparedStatement.executeUpdate();

			System.out.println("Record is inserted into USER_INFO table Success!");

		} catch (SQLException e) {

			System.out.println(e.getMessage());

		} finally {

			if (preparedStatement != null) {
				preparedStatement.close();
			}

			if (dbConnection != null) {
				dbConnection.close();
			}

		}
	}
}

二，测试

运行结果：

INSERT INTO USER_INFO (USER_ID, USERNAME, CREATED_BY,CREATED_DATE) VALUES (1,'devnp.com','system','2017-03-29')
 Record is inserted into USER_INFO table Success!
 INSERT INTO USER_INFO (USER_ID, USERNAME, CREATED_BY,CREATED_DATE) VALUES (2,'devnp.com','system','2017-03-29')
 Record is inserted into USER_INFO table Success!

数据库数据：