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

一,示例代码

连接数据util: 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();
}
}
}
}

JDBCCreateTable.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 JDBCCreateTable {

public static void main(String[] args) throws SQLException {
// TODO Auto-generated method stub

createDbTableWithPreparedStatement();
}

/**
* 采用Statement的方式
* @throws SQLException
*/
public static void createDbTableWithStatement() throws SQLException {

Connection dbConnection = null;
Statement statement = null;

String createTableSQL = "CREATE TABLE USER_INFO("
+ "USER_ID int(5) NOT NULL, "
+ "USERNAME VARCHAR(20) NOT NULL, "
+ "CREATED_BY VARCHAR(20) NOT NULL, "
+ "CREATED_DATE DATE NOT NULL, " + "PRIMARY KEY (USER_ID) "
+ ")";

try {
dbConnection = MySqlJDBSUtil.getConnection();

statement = dbConnection.createStatement();

System.out.println(createTableSQL);

statement.execute(createTableSQL);

System.out.println("Table \"USER_INFO\" is created!");

} catch (SQLException e) {

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

} finally {

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

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

}
}

/**
* 采用Prepared Statement的方式
* @throws SQLException
*/
public static void createDbTableWithPreparedStatement() throws SQLException {

Connection dbConnection = null;
PreparedStatement preparedStatement = null;

String createTableSQL = "CREATE TABLE USER_INFO("
+ "USER_ID int(5) NOT NULL, "
+ "USERNAME VARCHAR(20) NOT NULL, "
+ "CREATED_BY VARCHAR(20) NOT NULL, "
+ "CREATED_DATE DATE NOT NULL, " + "PRIMARY KEY (USER_ID) "
+ ")";

try {
dbConnection = MySqlJDBSUtil.getConnection();

preparedStatement = dbConnection.prepareStatement(createTableSQL);

System.out.println(createTableSQL);

preparedStatement .executeUpdate();

System.out.println("Table \"USER_INFO\" is created!");

} 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:
 CREATE TABLE USER_INFO(USER_ID int(5) NOT NULL, USERNAME VARCHAR(20) NOT NULL, CREATED_BY VARCHAR(20) NOT NULL, CREATED_DATE DATE NOT NULL, PRIMARY KEY (USER_ID) )
 Table "USER_INFO" is created!
表的创建: