package?db;

import?java.sql.Connection;??
import?java.sql.DriverManager;??
import?java.sql.SQLException;??
??
public?class?DBHelper?{??
????public?static?final?String?url?=?“jdbc:mysql://localhost:3306/cp“;??
????public?static?final?String?name?=?“com.mysql.jdbc.Driver“;??
????public?static?final?String?user?=?“root“;??
????public?static?final?String?password?=?“root“;??
??
????public?Connection?conn?=?null;??
??
????public?DBHelper（）?{??
????????try?{??
????????????Class.forName（name）;//指定連接類型??
????????????conn?=?DriverManager.getConnection（url?user?password）;//獲取連接??
????????}?catch?（Exception?e）?{??
????????????e.printStackTrace（）;??
????????}??
????}??
??
????public?void?close（）?{??
????????try?{??
????????????this.conn.close（）;??
????????}?catch?（SQLException?e）?{??
????????????e.printStackTrace（）;??
????????}??
????}??
}??

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2018-01-10?17:02??天氣入庫\
?????目錄???????????0??2018-01-10?17:01??天氣入庫\jar包\
?????文件???????33483??2018-01-10?11:39??天氣入庫\jar包\jackson-annotations-2.2.3.jar
?????文件??????192699??2018-01-10?11:39??天氣入庫\jar包\jackson-core-2.2.3.jar
?????文件??????865838??2018-01-10?11:39??天氣入庫\jar包\jackson-databind-2.2.3.jar
?????文件??????954038??2018-01-04?15:40??天氣入庫\jar包\mysql-connector-java-5.1.30.jar
?????目錄???????????0??2018-01-10?17:01??天氣入庫\weathers\
?????文件?????????639??2018-01-10?16:20??天氣入庫\weathers\.classpath
?????文件?????????384??2018-01-10?16:19??天氣入庫\weathers\.project
?????目錄???????????0??2018-01-10?17:01??天氣入庫\weathers\.settings\
?????文件?????????598??2018-01-10?16:19??天氣入庫\weathers\.settings\org.eclipse.jdt.core.prefs
?????目錄???????????0??2018-01-10?17:01??天氣入庫\weathers\bin\
?????目錄???????????0??2018-01-10?17:01??天氣入庫\weathers\bin\db\
?????文件????????1135??2018-01-10?16:57??天氣入庫\weathers\bin\db\DBHelper.class
?????目錄???????????0??2018-01-10?17:01??天氣入庫\weathers\bin\start\
?????文件?????????445??2018-01-10?16:57??天氣入庫\weathers\bin\start\WeatherStart.class
?????目錄???????????0??2018-01-10?17:01??天氣入庫\weathers\bin\util\
?????文件????????5662??2018-01-10?16:57??天氣入庫\weathers\bin\util\DBTest.class
?????文件????????1264??2018-01-10?16:57??天氣入庫\weathers\bin\util\SandTime.class
?????文件?????????573??2018-01-10?16:57??天氣入庫\weathers\bin\util\TestWeather.class
?????文件????????1543??2018-01-10?16:57??天氣入庫\weathers\bin\util\WeatherUtil.class
?????目錄???????????0??2018-01-10?17:01??天氣入庫\weathers\src\
?????目錄???????????0??2018-01-10?17:01??天氣入庫\weathers\src\db\
?????文件?????????894??2018-01-10?16:57??天氣入庫\weathers\src\db\DBHelper.java
?????目錄???????????0??2018-01-10?17:01??天氣入庫\weathers\src\start\
?????文件?????????165??2018-01-10?16:57??天氣入庫\weathers\src\start\WeatherStart.java
?????目錄???????????0??2018-01-10?17:01??天氣入庫\weathers\src\util\
?????文件????????6999??2018-01-10?16:57??天氣入庫\weathers\src\util\DBTest.java
?????文件?????????609??2018-01-10?16:57??天氣入庫\weathers\src\util\SandTime.java
?????文件?????????230??2018-01-10?16:57??天氣入庫\weathers\src\util\TestWeather.java
?????文件????????1026??2018-01-10?16:57??天氣入庫\weathers\src\util\WeatherUtil.java
............此處省略1個(gè)文件信息