Jfinal开发代码碎片_导出报表_配置druid数据源_使用guava_获取当前操作系统_JDK版本_jfinal-utils_jfinal验证码

1.使用jfinal扩展包jfinal-ext-3.1.2.jar导出Excel报表,他需要依赖poi-3.12.jar

jai包下载地址：http://files.cnblogs.com/files/zhougaojun/jfinal-ext_poi.zip

导出Excel方法：

//导出Excel
public void excel()throws Exception{
List<Record> list = Db.find("select * from activeaction_6_new");
PoiRender render = new PoiRender(list);
String[] headers = {"ID","游戏ID","渠道ID","MAC","IP","设备版本","设备信息","IDFA","IDFV","激活时间","区域","用户ID","游戏版本号"};
String[] columns= {"id","gameId","channelId","mac","ip","deviceos","deviceinfo","idfa","idfv","actionTime","area","userid","gamever"};
render(render.headers(headers).columns(columns).sheetName("所有激活").fileName("adreport.doc"));
}

2.使用guava-16.0.1.jar工具类

jar包下载地址: http://files.cnblogs.com/files/zhougaojun/guava-16.0.1.zip

使用实例:

List<Cat> list = Lists.newArrayList(new Cat("catA",5),new Cat("catB",10)

System.out.println(Strings.isNullOrEmpty(null));
System.out.println(Strings.nullToEmpty("aa"));

//一行一行读取日志文件封装成一个list
List<String> list50 = Files.readLines(new File("E:\\50_phoneadv.20150521.png\\50_phoneadv.zqgame.com.log_20150521.log"),Charset.defaultCharset());

3.jfinal使用druid数据源配置

下载地址：http://central.maven.org/maven2/com/alibaba/druid/1.0.4/

@Override
public void configPlugin(Plugins me) {
loadPropertyFile("dbconfig.properties");
DruidPlugin  druidPlugin =new DruidPlugin(getProperty("main.jdbc.database"),
getProperty("main.jdbc.user"),
getProperty("main.jdbc.password"),
getProperty("jdbc.driverClass"));
druidPlugin.addFilter(new StatFilter());
druidPlugin.setValidationQuery("SELECT 1");
druidPlugin.setTestWhileIdle(true);
druidPlugin.setTestOnBorrow(true);
druidPlugin.setTestOnReturn(true);
WallFilter wall = new WallFilter();
wall.setDbType("mysql");
druidPlugin.addFilter(wall);
me.add(druidPlugin);
ActiveRecordPlugin arp = new ActiveRecordPlugin(druidPlugin);
mappingClass(arp);
arp.setShowSql(false);
SqlReporter.setLogger(true);
me.add(arp);
}

4.commons-validator



5.commons-lang3-3.4.jar 获取当前操作系统，JDK版本



6.jfinal-utils https://github.com/Dreampie/jfinal-utils，正则验证等


7.jfinal验证码,https://github.com/Dreampie/jfinal-captcha



8.jfinal插件合集，http://www.oschina.net/p/jfinal-dreampie



jfinal发邮件，https://github.com/Dreampie/jfinal-mailer