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
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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

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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: