Jfinal開發代碼碎片_導出報表_配置druid數據源_使用guava_獲取當前操做系統_JDK版本_jfinal-utils_jfinal驗證碼

時間 2019-12-11

標籤 jfinal 開發代碼碎片導出報表配置 druid 數據使用 guava 獲取當前系統 jdk 版本 utils 驗證碼欄目 Java開源简体版

原文原文鏈接

1.使用jfinal擴展包jfinal-ext-3.1.2.jar導出Excel報表,他須要依賴poi-3.12.jarmysql

jai包下載地址：http://files.cnblogs.com/files/zhougaojun/jfinal-ext_poi.zipgit

導出Excel方法：github

//導出Excel
    public void excel()throws Exception{
        List<Record> list = Db.find("select * from activeaction_6_new");
        PoiRender render = new PoiRender(list);
        String[] headers = {"ID","遊戲ID","渠道ID","MAC","IP","設備版本","設備信息","IDFA","IDFV","激活時間","區域","用戶ID","遊戲版本號"};
        String[] columns= {"id","gameId","channelId","mac","ip","deviceos","deviceinfo","idfa","idfv","actionTime","area","userid","gamever"};
        render(render.headers(headers).columns(columns).sheetName("全部激活").fileName("adreport.doc"));
    }

2.使用guava-16.0.1.jar工具類sql

jar包下載地址: http://files.cnblogs.com/files/zhougaojun/guava-16.0.1.zipapp

使用實例:maven

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"));

//一行一行讀取日誌文件封裝成一個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數據源配置ide

下載地址：http://central.maven.org/maven2/com/alibaba/druid/1.0.4/工具

    @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);
    }