<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[lingbo_li的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/lingbo_li</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; lingbo_li]]></copyright><item><title><![CDATA[JSTL标签]]></title><link>https://blog.youkuaiyun.com/lingbo_li/article/details/80525765</link><guid>https://blog.youkuaiyun.com/lingbo_li/article/details/80525765</guid><author>lingbo_li</author><pubDate>Thu, 31 May 2018 16:44:42 +0800</pubDate><description><![CDATA[out输出标签&amp;lt;c:out value=&quot;${requestScope.book}&quot;&amp;gt;&amp;lt;/c:out&amp;gt;(可以对特殊字符，例如&amp;lt;等进行处理)set标签可以为域赋属性值，其中value属性支持EL表达式；还可以为域对象中的JavaBean的属性赋值&amp;lt;c:set var=&quot;name&quot; value=&quot;haha&quot; scope=&quot;page&quot;&amp;gt;&]]></description><category></category></item><item><title><![CDATA[EL表达式隐含对象和语法]]></title><link>https://blog.youkuaiyun.com/lingbo_li/article/details/80008434</link><guid>https://blog.youkuaiyun.com/lingbo_li/article/details/80008434</guid><author>lingbo_li</author><pubDate>Thu, 19 Apr 2018 17:54:59 +0800</pubDate><description><![CDATA[1.与范围有关的隐含对象从大到小applicationScope sessionScoperequestScopepageScope2.与输入有关的隐含对象param 接收请求的一个参数  相当于request.getParameter();paramValues接收一组请求参数3.其他隐含对象cookie header获取一个请求头信息headerValues获取一组请求头信息initParam...]]></description><category></category></item><item><title><![CDATA[jdbc连接数据库的几个步骤]]></title><link>https://blog.youkuaiyun.com/lingbo_li/article/details/80004693</link><guid>https://blog.youkuaiyun.com/lingbo_li/article/details/80004693</guid><author>lingbo_li</author><pubDate>Thu, 19 Apr 2018 15:45:22 +0800</pubDate><description><![CDATA[1.加载jdbc驱动程序class.forName(&quot;com.oracle.jdbc.Driver&quot;);2.通过DriverManager与数据库建立连接，其静态方法getConnection用来获取连接  通常需要传入三个参数Connection conn = DriverManager.getConnection(url,username,password)3.java.sql.stateme...]]></description><category></category></item><item><title><![CDATA[关于cookie的基础API]]></title><link>https://blog.youkuaiyun.com/lingbo_li/article/details/80004284</link><guid>https://blog.youkuaiyun.com/lingbo_li/article/details/80004284</guid><author>lingbo_li</author><pubDate>Thu, 19 Apr 2018 14:28:41 +0800</pubDate><description><![CDATA[向客户端浏览器写入cookie时：创建一个cookie对象  Cookie cookie = new Cookie(&quot;name&quot;,&quot;hello&quot;);设置cookie的时效  以秒为单位  若为0 表示立即删除该cookie 若为负数 表示不存储该cookie若为正数则表示该cookie的存储时间cookie.setMaxAge(30);设置cookie的作用域  cookie默认作用域是当前文件的...]]></description><category></category></item><item><title><![CDATA[Java枚举使用方法]]></title><link>https://blog.youkuaiyun.com/lingbo_li/article/details/79911387</link><guid>https://blog.youkuaiyun.com/lingbo_li/article/details/79911387</guid><author>lingbo_li</author><pubDate>Thu, 12 Apr 2018 11:40:09 +0800</pubDate><description><![CDATA[]]></description><category></category></item><item><title><![CDATA[jsp相关基础知识]]></title><link>https://blog.youkuaiyun.com/lingbo_li/article/details/79883744</link><guid>https://blog.youkuaiyun.com/lingbo_li/article/details/79883744</guid><author>lingbo_li</author><pubDate>Tue, 10 Apr 2018 18:09:33 +0800</pubDate><description><![CDATA[一、jsp注释&amp;lt;!--html注释--&amp;gt;   &amp;lt;%--  java注释--%&amp;gt;区别：java注释可阻止Java代码执行而html注释不能二、&amp;lt;% %&amp;gt;与&amp;lt;%! %&amp;gt;的区别&amp;lt;%%&amp;gt;里面的Java代码当jsp被翻译成servlet时，Java代码在service方法里面，而&amp;lt;%!%&amp;gt;里面的Java代码在service外面三、jsp...]]></description><category></category></item><item><title><![CDATA[maven基础知识]]></title><link>https://blog.youkuaiyun.com/lingbo_li/article/details/79863636</link><guid>https://blog.youkuaiyun.com/lingbo_li/article/details/79863636</guid><author>lingbo_li</author><pubDate>Mon, 09 Apr 2018 13:49:09 +0800</pubDate><description><![CDATA[一、maven常用命令（在DOS窗口）：mvn clean:清理mvn compile:编译主程序mvn test-compile:编译测试程序mvn test:执行测试mvn package:打包mvn install:安装项目到本地库tips：执行与构建过程相关的命令 需要在需要进入pom所在路径，与构建相关的命令：编译 测试 打包。。。在eclipse里使用maven：二、maven插件其实...]]></description><category></category></item><item><title><![CDATA[java特性之多态]]></title><link>https://blog.youkuaiyun.com/lingbo_li/article/details/79835332</link><guid>https://blog.youkuaiyun.com/lingbo_li/article/details/79835332</guid><author>lingbo_li</author><pubDate>Fri, 06 Apr 2018 17:59:24 +0800</pubDate><description><![CDATA[多态的条件：1）继承2）重写父类的方法3）父类的引用指向子类的对象Class Father{   private String name;   private int age;   public void say(){        system.out.println(&quot;hello,i'm father&quot;);} public void money(){system.out.println(&quot;ma...]]></description><category></category></item><item><title><![CDATA[ArrayList及Map常用方法]]></title><link>https://blog.youkuaiyun.com/lingbo_li/article/details/79834958</link><guid>https://blog.youkuaiyun.com/lingbo_li/article/details/79834958</guid><author>lingbo_li</author><pubDate>Fri, 06 Apr 2018 17:29:09 +0800</pubDate><description><![CDATA[ArrayList存储有序可重复元素，增删改查  分别为  list.add(int index,Object object),list.remove(int index)),list.set(index, element),list.get(int index),list.size()Map存储无序，不可重复的元素  增删改查分别为  map.put(key,value),map.get(int...]]></description><category></category></item><item><title><![CDATA[Struts2 前台向后台传值]]></title><link>https://blog.youkuaiyun.com/lingbo_li/article/details/79779570</link><guid>https://blog.youkuaiyun.com/lingbo_li/article/details/79779570</guid><author>lingbo_li</author><pubDate>Sun, 01 Apr 2018 17:02:00 +0800</pubDate><description><![CDATA[所谓ModelDriven，意思是直接把实体类当成页面数据的收集对象。比如，有实体类User如下：package cn.com.leadfar.struts2.actions; public class User {    private int id;    private String username;    private String password;    private int a...]]></description><category></category></item><item><title><![CDATA[ResultSet rs结果集是否为空判断]]></title><link>https://blog.youkuaiyun.com/lingbo_li/article/details/79770986</link><guid>https://blog.youkuaiyun.com/lingbo_li/article/details/79770986</guid><author>lingbo_li</author><pubDate>Sat, 31 Mar 2018 17:03:38 +0800</pubDate><description><![CDATA[    ResultSet指针初始时是指向第一条记录的前面，当使用rs.next()时，指针正好指向第一条记录，因此当判断数据库里面是否有值时  用if(rs.next()){    ........}    另外rs.first()使指针指向第一条记录          rs.last()指向最后一条记录         ...]]></description><category></category></item><item><title><![CDATA[json对象，json字符串的区别]]></title><link>https://blog.youkuaiyun.com/lingbo_li/article/details/79746016</link><guid>https://blog.youkuaiyun.com/lingbo_li/article/details/79746016</guid><author>lingbo_li</author><pubDate>Thu, 29 Mar 2018 17:19:02 +0800</pubDate><description><![CDATA[JSON对象有时候在做项目的时候时常将这两个概念弄混淆，尤其是在使用springmvc的时候，后台@RequestBody接受的是一个json格式的字符串，一定是一个字符串。先介绍一下json对象，首先说到对象的概念，对象的属性是可以用：对象.属性进行调用的。例如：var person={&quot;name&quot;:&quot;zhangsan&quot;,&quot;sex&quot;:&quot;男&quot;,&quot;age&quot;:&quot;24&quot;}//json对象
ale]]></description><category></category></item><item><title><![CDATA[原生ajax与jQuery  ajax的比较]]></title><link>https://blog.youkuaiyun.com/lingbo_li/article/details/79745629</link><guid>https://blog.youkuaiyun.com/lingbo_li/article/details/79745629</guid><author>lingbo_li</author><pubDate>Thu, 29 Mar 2018 17:02:11 +0800</pubDate><description><![CDATA[form数据的序列化：$('#submit').click(function(){
    $('#form').serialize();        //会根据input里面的name，把数据序列化成字符串；eg：name=yang
    $('#form').serializeArray();    //会根据input里面的name，把数据序列化成数组；eg：[object]　　//注意...]]></description><category></category></item><item><title><![CDATA[$.ajax()常用参数]]></title><link>https://blog.youkuaiyun.com/lingbo_li/article/details/79744395</link><guid>https://blog.youkuaiyun.com/lingbo_li/article/details/79744395</guid><author>lingbo_li</author><pubDate>Thu, 29 Mar 2018 16:17:25 +0800</pubDate><description><![CDATA[1.url: 要求为String类型的参数，（默认为当前页地址）发送请求的地址。2.type: 要求为String类型的参数，请求方式（post或get）默认为get。注意其他http请求方法，例如put和delete也可以使用，但仅部分浏览器支持。3.timeout: 要求为Number类型的参数，设置请求超时时间（毫秒）。此设置将覆盖$.ajaxSetup()方法的全局设置。4.async: ...]]></description><category></category></item><item><title><![CDATA[流程图规则]]></title><link>https://blog.youkuaiyun.com/lingbo_li/article/details/79558734</link><guid>https://blog.youkuaiyun.com/lingbo_li/article/details/79558734</guid><author>lingbo_li</author><pubDate>Wed, 14 Mar 2018 18:49:36 +0800</pubDate><description><![CDATA[在流程图中，判断框左边的流程线表示判断条件为真时的流程，右边的流程线表示条件为假时的流程，有时就在其左、右流程线的上方分别标注“真”、“假”或“T”、“F”或“Y”、“N另外还规定，流程线是从下往上或从右向左时，必须带箭头，除此以外，都不画箭头，流程线的走向总是从上向下或从左向右。”...]]></description><category></category></item><item><title><![CDATA[Calendar与date]]></title><link>https://blog.youkuaiyun.com/lingbo_li/article/details/79353784</link><guid>https://blog.youkuaiyun.com/lingbo_li/article/details/79353784</guid><author>lingbo_li</author><pubDate>Fri, 23 Feb 2018 15:31:59 +0800</pubDate><description><![CDATA[Calendar与date之间的转换calendar-&amp;gt;dateCalendar calendar = Calendar.getinstance();Date date = calendar.getTime();Date-&amp;gt;calendarDate date = new Date();Calendar calendar = Calendar.getinstance();calendar...]]></description><category></category></item></channel></rss>