19 lines
454 B
Java
19 lines
454 B
Java
public class UserDriver {
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private DbDriver driver;
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// 设置使用的驱动
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public void setDriver(DbDriver driver) {
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this.driver = driver;
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}
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// 使用驱动执行操作
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public void useDriver() {
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if (driver != null) {
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driver.connect();
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driver.executeQuery();
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driver.disconnect();
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} else {
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System.out.println("未设置数据库驱动！");
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}
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}
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} |