<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[DoubleLiu]]></title><description><![CDATA[工作、生活点点滴滴....]]></description><link>https://blog.youkuaiyun.com/DoubleLiu_</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; DoubleLiu_]]></copyright><item><title><![CDATA[java.lang.UnsupportedOperationException异常]]></title><link>https://blog.youkuaiyun.com/DoubleLiu_/article/details/46833399</link><guid>https://blog.youkuaiyun.com/DoubleLiu_/article/details/46833399</guid><author>DoubleLiu_</author><pubDate>Fri, 10 Jul 2015 17:33:06 +0800</pubDate><description><![CDATA[出错代码段：
String[] ids=approveId.split(",");
List list=Arrays.asList(ids);
HashSet h  =   new  HashSet(list); 
list.clear(); 
list.addAll(h); 
ids=(String[]) list.toArray();

常常使用Arrays.asList()后调用add]]></description><category></category></item><item><title><![CDATA[spring  初始化ApplicationContext的几种方式]]></title><link>https://blog.youkuaiyun.com/DoubleLiu_/article/details/46711507</link><guid>https://blog.youkuaiyun.com/DoubleLiu_/article/details/46711507</guid><author>DoubleLiu_</author><pubDate>Wed, 01 Jul 2015 16:25:07 +0800</pubDate><description><![CDATA[方法一：FileSystemXmlApplicationContext

//1.默认为项目工作路径 即项目的根目录 
ApplicationContext appCt2 = new FileSystemXmlApplicationContext("src/main/resources/app.spring.xml"); 
appCt2.getBean("beanId");//2.前缀clas]]></description><category></category></item><item><title><![CDATA[获取request中的参数，以Map的形式返回]]></title><link>https://blog.youkuaiyun.com/DoubleLiu_/article/details/46710433</link><guid>https://blog.youkuaiyun.com/DoubleLiu_/article/details/46710433</guid><author>DoubleLiu_</author><pubDate>Wed, 01 Jul 2015 15:16:27 +0800</pubDate><description><![CDATA[/**
	 * @Title: getParamMap 
	 * @Description: 获取request中的参数，以Map的形式返回
	 * @author：liushuang
	 * @param request
	 * @return Map
	 */
	@SuppressWarnings("rawtypes")
	private Map getParamMap(HttpServlet]]></description><category></category></item><item><title><![CDATA[20150605面试汇总--jdk常用package]]></title><link>https://blog.youkuaiyun.com/DoubleLiu_/article/details/46374705</link><guid>https://blog.youkuaiyun.com/DoubleLiu_/article/details/46374705</guid><author>DoubleLiu_</author><pubDate>Fri, 05 Jun 2015 14:04:05 +0800</pubDate><description><![CDATA[java.io  文件、异常等都在这个包下
java.lang   数据类型等都在这个包下

java.math  常用这个包下的BigDecimal 等类

java.net  常用该包下的Socket、URI、URL 、URLConnection等类

java.text 常用该包下的SimpleDateFormat


java.util 常用该包下的ArrayList、]]></description><category></category></item><item><title><![CDATA[20150605面试汇总--js与java的区别]]></title><link>https://blog.youkuaiyun.com/DoubleLiu_/article/details/46374571</link><guid>https://blog.youkuaiyun.com/DoubleLiu_/article/details/46374571</guid><author>DoubleLiu_</author><pubDate>Fri, 05 Jun 2015 11:29:21 +0800</pubDate><description><![CDATA[javascript与java都是编程语言，不同在于代码格式不同；
js基于对象，java是面向对象；
java是强变量，编译前必须作出声明，js是弱变量，使用前不需做声明；
JavaScript 是一种嵌入式脚本文件，直接插入网页，有浏览器一边解释一边执行。 
java 语言不一样，他必须在JAVA虚拟机上运行。而且事先需要进行编译。
JAVA的语法规则比JavaScript要严格的多]]></description><category></category></item><item><title><![CDATA[移动网页规范]]></title><link>https://blog.youkuaiyun.com/DoubleLiu_/article/details/45919089</link><guid>https://blog.youkuaiyun.com/DoubleLiu_/article/details/45919089</guid><author>DoubleLiu_</author><pubDate>Fri, 22 May 2015 16:49:33 +0800</pubDate><description><![CDATA[width - viewport的宽度
        height - viewport的高度
        initial-scale - 初始的缩放比例
        minimum-scale - 允许用户缩放到的最小比例
        maximum-scale - 允许用户缩放到的最大比例
        user-scalable - 用户是否可以手动缩放
    ]]></description><category></category></item><item><title><![CDATA[ireport插入图片]]></title><link>https://blog.youkuaiyun.com/DoubleLiu_/article/details/45401275</link><guid>https://blog.youkuaiyun.com/DoubleLiu_/article/details/45401275</guid><author>DoubleLiu_</author><pubDate>Thu, 30 Apr 2015 23:16:06 +0800</pubDate><description><![CDATA[ireport插入图片


1. 在模板上拖一个image组件，设置它的image Expression为变量$P{logo},如图示，属性下面的is lazy勾上。
   不然有可能最后页面渲染出来的image的src为nullimage_0_0_0。
2. 给变量logo的值。  
    String basePath=request.getScheme()+"://"+requ]]></description><category></category></item><item><title><![CDATA[JAVA与JSON日期互相转换（解决日期和去除属性题目）]]></title><link>https://blog.youkuaiyun.com/DoubleLiu_/article/details/9384961</link><guid>https://blog.youkuaiyun.com/DoubleLiu_/article/details/9384961</guid><author>DoubleLiu_</author><pubDate>Fri, 19 Jul 2013 20:55:45 +0800</pubDate><description><![CDATA[java与json互相转换（解决日期和去除属性题目）


JSON 即 JavaScript Object Natation，它是一种轻量级的数据互换格局，很是合适于办事器与 JavaScript 的交互。本文首要讲解下java和JSON之间的转换，希罕是解决互相转换碰到日期题目和指定属性的过滤。
    一、须要相干的jar包：
     json-lib-xxx.jar
    e]]></description><category></category></item><item><title><![CDATA[java.io.EOFException]]></title><link>https://blog.youkuaiyun.com/DoubleLiu_/article/details/9384939</link><guid>https://blog.youkuaiyun.com/DoubleLiu_/article/details/9384939</guid><author>DoubleLiu_</author><pubDate>Fri, 19 Jul 2013 18:57:12 +0800</pubDate><description><![CDATA[主要错误提示如下：


严重: IOException while loading persisted sessions: java.io.EOFException


严重: Exception loading sessions from persistent storage


baidu了一下，结合网上提供的解决方法，我也在此做个备份.


分析:EOFExcepti]]></description><category></category></item><item><title><![CDATA[net.sf.json.JSONException: java.lang.reflect.InvocationTargetException]]></title><link>https://blog.youkuaiyun.com/DoubleLiu_/article/details/9384925</link><guid>https://blog.youkuaiyun.com/DoubleLiu_/article/details/9384925</guid><author>DoubleLiu_</author><pubDate>Fri, 19 Jul 2013 18:55:47 +0800</pubDate><description><![CDATA[一、问题场景
执行:
JSONArray array = JSONArray.fromObject(this.users);

users是一个list集合,
抛出以下异常：net.sf.json.JSONException: java.lang.reflect.InvocationTargetException
二、问题分析
这是因为bean里有Date字段，且从数据库里读出来的是]]></description><category></category></item><item><title><![CDATA[Server Tomcat v6.0 Server at localhost failed to start.]]></title><link>https://blog.youkuaiyun.com/DoubleLiu_/article/details/9384913</link><guid>https://blog.youkuaiyun.com/DoubleLiu_/article/details/9384913</guid><author>DoubleLiu_</author><pubDate>Fri, 19 Jul 2013 18:52:50 +0800</pubDate><description><![CDATA[Server Tomcat v6.0 Server at localhost failed to start. 
在eclipse中配置好runtime environment以后，想启动Tomcat调试一个Dynamic Web Project，跳出一个窗口报错内容如下：


‘Starting Tomcat v6.0 Server at localhost ' has encounte]]></description><category></category></item><item><title><![CDATA[IDENTITY_INSERT  设置OFF  不能插入列标识符解决办法]]></title><link>https://blog.youkuaiyun.com/DoubleLiu_/article/details/9384905</link><guid>https://blog.youkuaiyun.com/DoubleLiu_/article/details/9384905</guid><author>DoubleLiu_</author><pubDate>Fri, 19 Jul 2013 18:51:22 +0800</pubDate><description><![CDATA[set identity_insert GIS_MOVERESOURCE_ALARMINFO ON


SET IDENTITY_INSERT dbo.GIS_MOVERESOURCE_ALARMINFO  ON]]></description><category></category></item><item><title><![CDATA[有关时间戳]]></title><link>https://blog.youkuaiyun.com/DoubleLiu_/article/details/9384891</link><guid>https://blog.youkuaiyun.com/DoubleLiu_/article/details/9384891</guid><author>DoubleLiu_</author><pubDate>Fri, 19 Jul 2013 18:50:00 +0800</pubDate><description><![CDATA[Oracle中的TIMESTAMP类型




SQL> create table test_time (col_time timestamp);


表已创建。


SQL> insert into test_time values (to_timestamp('0001-1-1 0:0:0.0', 'syyyy-mm-dd hh24:mi:ss.ff'));


已]]></description><category></category></item><item><title><![CDATA[误删数据回滚数据表ORACLE]]></title><link>https://blog.youkuaiyun.com/DoubleLiu_/article/details/9384861</link><guid>https://blog.youkuaiyun.com/DoubleLiu_/article/details/9384861</guid><author>DoubleLiu_</author><pubDate>Fri, 19 Jul 2013 18:48:24 +0800</pubDate><description><![CDATA[SELECT * FROM GIS_MOVERESOUR_FENCE AS OF TIMESTAMP to_timestamp('2013-06-20 10:55:00','yyyy-mm-dd hh24:mi:ss');

注意:
to_timestamp()里面的参数为你修改数据库之前的时间。]]></description><category></category></item><item><title><![CDATA[误删数据回滚数据表mssql]]></title><link>https://blog.youkuaiyun.com/DoubleLiu_/article/details/9384849</link><guid>https://blog.youkuaiyun.com/DoubleLiu_/article/details/9384849</guid><author>DoubleLiu_</author><pubDate>Fri, 19 Jul 2013 18:45:32 +0800</pubDate><description><![CDATA[/*
标题：Log Explorer for SQL Server v4.0.2的下载地址和使用说明
 作者：爱新觉罗·毓华 
时间：2008-07-14
地点：新疆乌鲁木齐
 资料来源：http://topic.youkuaiyun.com/u/20090305/00/849723bf-74ad-495f-8fc6-22d2108beb10.html?seed=1633183628
 */
]]></description><category></category></item><item><title><![CDATA[修改表的架构名称]]></title><link>https://blog.youkuaiyun.com/DoubleLiu_/article/details/9384839</link><guid>https://blog.youkuaiyun.com/DoubleLiu_/article/details/9384839</guid><author>DoubleLiu_</author><pubDate>Fri, 19 Jul 2013 18:44:22 +0800</pubDate><description><![CDATA[USE db_name 
GO 
ALTER SCHEMA dbo TRANSFER ttom_t.表名称;


例子：
USE frame 
GO 
ALTER SCHEMA dbo TRANSFER powerapptest.GIS_MOVERESOURCE_GEOMETRY;]]></description><category></category></item><item><title><![CDATA[mssql中将String类型的数据插入给datetime类型的格式转换]]></title><link>https://blog.youkuaiyun.com/DoubleLiu_/article/details/9384827</link><guid>https://blog.youkuaiyun.com/DoubleLiu_/article/details/9384827</guid><author>DoubleLiu_</author><pubDate>Fri, 19 Jul 2013 18:42:35 +0800</pubDate><description><![CDATA[convert(datetime,要转换的数据或者列名，120)
convert(varchar（19）,要转换的数据或者列名，120)]]></description><category></category></item><item><title><![CDATA[Could not autowire field: private com.rhyton.pems.core.service.IEnergyPlanService com.rhyton.pems.we]]></title><link>https://blog.youkuaiyun.com/DoubleLiu_/article/details/9364561</link><guid>https://blog.youkuaiyun.com/DoubleLiu_/article/details/9364561</guid><author>DoubleLiu_</author><pubDate>Thu, 18 Jul 2013 10:53:09 +0800</pubDate><description><![CDATA[检查你的Controller层、service层、Dao层中  各个类应有的注解是否忘记写了。]]></description><category></category></item><item><title><![CDATA[The content of elements must consist of well-formed character data or markup]]></title><link>https://blog.youkuaiyun.com/DoubleLiu_/article/details/9364377</link><guid>https://blog.youkuaiyun.com/DoubleLiu_/article/details/9364377</guid><author>DoubleLiu_</author><pubDate>Thu, 18 Jul 2013 10:41:44 +0800</pubDate><description><![CDATA[配置的动态SQL语句里面带""等符号的需要用 
<![CDATA[

]]>
括起来]]></description><category></category></item><item><title><![CDATA[There is no WRITEABLE property named 'unitcoefficient' in class 'com.rhyton.pems.core.domain.EnergyM]]></title><link>https://blog.youkuaiyun.com/DoubleLiu_/article/details/9364191</link><guid>https://blog.youkuaiyun.com/DoubleLiu_/article/details/9364191</guid><author>DoubleLiu_</author><pubDate>Thu, 18 Jul 2013 10:32:21 +0800</pubDate><description><![CDATA[1、检查你的配置文件与实体字段的对应是否一致
2、检查你的配置文件与数据库字段的对应是否一致]]></description><category></category></item></channel></rss>