代码片段(四)

(十一)读取配置文件:config.propertities

app.root=./
driverClassName=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://172.21.100.220:3306/SOCRMEVT?useUnicode=true&characterEncoding=UTF-8&zeroDateTimeBehavior=convertToNull
jdbc.username=AppSoCRM
jdbc.password=efuture
validationQuery=SELECT 1

query.maxRow=10

项目中使用的读取配置文件的方法：

String str = PropertiesConfig.getProperty("query.maxRow", "1000");

默认值是1000

（十二）字符串的格式化format

String content = "<a href=\"http://app.socrm.com.cn/event-game/game/RotateAction.action?evtid={%d}&cid={%d}\" target=\"_blank\">%s</a>";
content = String.format(content, new Object[]{920110,10001,"砸金蛋"});

%d表示整数，%s表示字符串

（十三）String字符串转化成时间格式的字符串

DateFormat fmt = new SimpleDateFormat("yyyyMMdd");
SimpleDateFormat fmt2 = new SimpleDateFormat("yyyy/MM/dd");
Date startDate = null;
String start = null;
try {
	startDate = fmt.parse("19880202");
	start = fmt2.format(startDate);
} catch (ParseException e) {
	e.printStackTrace();
}