<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[baibashige的专栏]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/oBaiBaShiGe</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; oBaiBaShiGe]]></copyright><item><title><![CDATA[xstream,jackson序列化对象]]></title><link>https://blog.youkuaiyun.com/oBaiBaShiGe/article/details/10955791</link><guid>https://blog.youkuaiyun.com/oBaiBaShiGe/article/details/10955791</guid><author>oBaiBaShiGe</author><pubDate>Tue, 03 Sep 2013 08:47:28 +0800</pubDate><description><![CDATA[1.xstream 在序列化时会忽略值为null的属性；  jackson不会忽略值为null的属性。2.xstream,jackson忽略属性：  xstream忽略指定属性：    代码方式：    
    xstream.omitField(Person.class,"name");
        注解方式：
 @XStreamOmitField    
 pri]]></description><category></category></item><item><title><![CDATA[异常记录-JSONException]]></title><link>https://blog.youkuaiyun.com/oBaiBaShiGe/article/details/10955783</link><guid>https://blog.youkuaiyun.com/oBaiBaShiGe/article/details/10955783</guid><author>oBaiBaShiGe</author><pubDate>Tue, 03 Sep 2013 08:47:23 +0800</pubDate><description><![CDATA[今天碰到一个异常，没结构开始没看仔细，以为是程序报了一堆异常；结果后面一看是json的异常，那一大堆都是打印的信息，不是异常，以后要认真一些。
net.sf.json.JSONException: A JSONArray text must start with '[' at character 1 of Apache Tomcat/6.0.28 - Error report HTTP Stat]]></description><category></category></item><item><title><![CDATA[Urlrwritefilter]]></title><link>https://blog.youkuaiyun.com/oBaiBaShiGe/article/details/10955777</link><guid>https://blog.youkuaiyun.com/oBaiBaShiGe/article/details/10955777</guid><author>oBaiBaShiGe</author><pubDate>Tue, 03 Sep 2013 08:47:18 +0800</pubDate><description><![CDATA[1.配置使用  web.xml添加：
  
    UrlRewriteFilter
    org.tuckey.web.filters.urlrewrite.UrlRewriteFilter
    
    
    UrlRewriteFilter
    /*
    
同目录下添加urlrewrite.xml:

<!DOCTYPE urlrewrite]]></description><category></category></item><item><title><![CDATA[solr-group by]]></title><link>https://blog.youkuaiyun.com/oBaiBaShiGe/article/details/10955773</link><guid>https://blog.youkuaiyun.com/oBaiBaShiGe/article/details/10955773</guid><author>oBaiBaShiGe</author><pubDate>Tue, 03 Sep 2013 08:47:13 +0800</pubDate><description><![CDATA[solr group by查询：1.solr wiki参考：[url]http://wiki.apache.org/solr/FieldCollapsing[/url2.solrj group查询例子：
 SolrQuery SolrQuery = new SolrQuery("*:*");
        solrQuery.addFilterQuery("display:1");
]]></description><category></category></item><item><title><![CDATA[solr-solr参数，配置]]></title><link>https://blog.youkuaiyun.com/oBaiBaShiGe/article/details/10955769</link><guid>https://blog.youkuaiyun.com/oBaiBaShiGe/article/details/10955769</guid><author>oBaiBaShiGe</author><pubDate>Tue, 03 Sep 2013 08:47:08 +0800</pubDate><description><![CDATA[1.常见的查询参数：q:查询参数，例如q=*:*sort：排序，sort=id ascstart,rows:分页，start默认值0，起始位置；rows返回记录数，默认值0fq：Filter Query中用到，会还存到filterCache中，fq=section:0fl：指定要显示的字段，默认显示全部字段，fl=id name price2.solr配置文件：schema.xm]]></description><category></category></item><item><title><![CDATA[solr开--solr配置安装]]></title><link>https://blog.youkuaiyun.com/oBaiBaShiGe/article/details/10955765</link><guid>https://blog.youkuaiyun.com/oBaiBaShiGe/article/details/10955765</guid><author>oBaiBaShiGe</author><pubDate>Tue, 03 Sep 2013 08:47:03 +0800</pubDate><description><![CDATA[本文以solr3.5为例：1.solr官方网站：http://lucene.apache.org/solr/2.solr解压后目录如下图： 3.用jetty运行solr.直接运行example/start.jar
cd D:\opensource\apache-solr-3.5.0\example
Java –jar start.jar
即可启动solr应用,访问htt]]></description><category></category></item><item><title><![CDATA[solr--solr suggester]]></title><link>https://blog.youkuaiyun.com/oBaiBaShiGe/article/details/10955757</link><guid>https://blog.youkuaiyun.com/oBaiBaShiGe/article/details/10955757</guid><author>oBaiBaShiGe</author><pubDate>Tue, 03 Sep 2013 08:46:57 +0800</pubDate><description><![CDATA[在Solr的自动完成/自动补充-Suggester组件: 1.可直接启动example/start.jar启动jetty;访问[url]http://localhost:8983/solr/spell?q=delll ultrashar&spellcheck=true&spellcheck.collate=true&spellcheck.build=true[/url]2.配置solrcon]]></description><category></category></item><item><title><![CDATA[poi 数字处理]]></title><link>https://blog.youkuaiyun.com/oBaiBaShiGe/article/details/10955755</link><guid>https://blog.youkuaiyun.com/oBaiBaShiGe/article/details/10955755</guid><author>oBaiBaShiGe</author><pubDate>Tue, 03 Sep 2013 08:46:52 +0800</pubDate><description><![CDATA[问题:excel导入的数字都是333.0的形式，且数字比较大时转换成了科学计数法形式。代码：String str = row.getCell(0).toString();发现上面是先将字符串转成了数字又转成了字符串改为：
Cell cell=row.getCell(0);
cell.setCellType(Cell.CELL_TYPE_STRING);
String str]]></description><category></category></item><item><title><![CDATA[idea debug下启动不能进入断点]]></title><link>https://blog.youkuaiyun.com/oBaiBaShiGe/article/details/10955753</link><guid>https://blog.youkuaiyun.com/oBaiBaShiGe/article/details/10955753</guid><author>oBaiBaShiGe</author><pubDate>Tue, 03 Sep 2013 08:46:47 +0800</pubDate><description><![CDATA[debug下启动tomcat，代码不能进入断点：在Run--Edit configurations看见有JAVA_OPTS的设置，突然想起我在catalina.bat中设置过，导致idea中设置的被覆盖，注释掉catalina.bat中的设置，debug下重启tomcat，就可以进入断点了。参考：http://wwwwfw.blog.163.com/blog/static/31727815]]></description><category></category></item><item><title><![CDATA[桌面图标不能点击，鼠标一直显示加载状态]]></title><link>https://blog.youkuaiyun.com/oBaiBaShiGe/article/details/10955743</link><guid>https://blog.youkuaiyun.com/oBaiBaShiGe/article/details/10955743</guid><author>oBaiBaShiGe</author><pubDate>Tue, 03 Sep 2013 08:46:42 +0800</pubDate><description><![CDATA[系统启动后，桌面图标正常显示，鼠标也能动，但是一直显示正在加载状态，桌面图标也不能点击。修复：可以使用下面的方法来修复文件关联。 在windows系统中，我们可以打开“开始”，“运行”，输入“CMD　”来打开命令提示符窗口，然后运行下列命令： assoc .lnk=lnkfile 之后重新启动计算机就可以本人系统win7 32位旗舰版参考：http://blog.renren.]]></description><category></category></item><item><title><![CDATA[电脑关机后自动重启]]></title><link>https://blog.youkuaiyun.com/oBaiBaShiGe/article/details/10955739</link><guid>https://blog.youkuaiyun.com/oBaiBaShiGe/article/details/10955739</guid><author>oBaiBaShiGe</author><pubDate>Tue, 03 Sep 2013 08:46:37 +0800</pubDate><description><![CDATA[电脑型号dell xps 1.在设备管理器--》系统设备--》ST Micro Accelerometer有黄色叹号2.在http://www.dell800.com/thread-54824-1-1.html，下载 硬件加速传感器驱动 选择32或64位下载3.安装后重启电脑，发现感叹号小时4.再关机，不会重启了，问题解决]]></description><category></category></item><item><title><![CDATA[jvm内存调试工具]]></title><link>https://blog.youkuaiyun.com/oBaiBaShiGe/article/details/10955733</link><guid>https://blog.youkuaiyun.com/oBaiBaShiGe/article/details/10955733</guid><author>oBaiBaShiGe</author><pubDate>Tue, 03 Sep 2013 08:46:32 +0800</pubDate><description><![CDATA[jconsole在jdk 1.5中，java应用在启动的时候应加参数：-Dcom.sun.management.jmxremote启动 jconsole pidjstat    jstat -class pid:显示加载class的数量，及所占空间等信息。      jstat -compiler pid:显示VM实时编译的数量等信息。      jstat -gc pid:可以显示]]></description><category></category></item><item><title><![CDATA[ArrayList]]></title><link>https://blog.youkuaiyun.com/oBaiBaShiGe/article/details/10955729</link><guid>https://blog.youkuaiyun.com/oBaiBaShiGe/article/details/10955729</guid><author>oBaiBaShiGe</author><pubDate>Tue, 03 Sep 2013 08:46:27 +0800</pubDate><description><![CDATA[private static final long serialVersionUID = 8683452581122892189L;
	//不支持序列化
    private transient E[] elementData;
    private int size;
   
	//指定初始容量initialCapacity
    public ArrayList(int in]]></description><category></category></item><item><title><![CDATA[ORA-12505, TNS:listener does not currently know of SID given in connect descript]]></title><link>https://blog.youkuaiyun.com/oBaiBaShiGe/article/details/10955725</link><guid>https://blog.youkuaiyun.com/oBaiBaShiGe/article/details/10955725</guid><author>oBaiBaShiGe</author><pubDate>Tue, 03 Sep 2013 08:46:22 +0800</pubDate><description><![CDATA[错误：java.sql.SQLException: Listener refused the connection with the following error:
ORA-12505, TNS:listener does not currently know of SID given in connect 且不能修改数据库的配置文件。解决：select instance_name fro]]></description><category></category></item><item><title><![CDATA[linux下log4j,properties中文乱码]]></title><link>https://blog.youkuaiyun.com/oBaiBaShiGe/article/details/10955721</link><guid>https://blog.youkuaiyun.com/oBaiBaShiGe/article/details/10955721</guid><author>oBaiBaShiGe</author><pubDate>Tue, 03 Sep 2013 08:46:17 +0800</pubDate><description><![CDATA[1.log4j在linux下中文乱码：解决：log4j配置文件中，编码改为UTF-8,(改为gb2312,gbk还是乱码)log4j.appender.用到的rootLogger.encoding=UTF-82.properties文件中中文都要转码，用Java\jdk1.x.x\bin\native2ascii.exe工具myEcplise会自动进行转码时字母会有大小写问题；若在li]]></description><category></category></item><item><title><![CDATA[HashMap]]></title><link>https://blog.youkuaiyun.com/oBaiBaShiGe/article/details/10955715</link><guid>https://blog.youkuaiyun.com/oBaiBaShiGe/article/details/10955715</guid><author>oBaiBaShiGe</author><pubDate>Tue, 03 Sep 2013 08:46:12 +0800</pubDate><description><![CDATA[HashMap深度分析http://www.iteye.com/topic/754887,深入理解HashMaphttp://www.iteye.com/topic/539465]]></description><category></category></item><item><title><![CDATA[java异常处理]]></title><link>https://blog.youkuaiyun.com/oBaiBaShiGe/article/details/10955713</link><guid>https://blog.youkuaiyun.com/oBaiBaShiGe/article/details/10955713</guid><author>oBaiBaShiGe</author><pubDate>Tue, 03 Sep 2013 08:46:07 +0800</pubDate><description><![CDATA[java异常处理1.java异常结构：Thorwable类所有异常和错误的超类，有两个子类Error和Exception，分别表示错误和异常。其中异常类Exception又分为运行时异常(RuntimeException)和非运行时异常2. Java异常处理通过5个关键字try、catch、throw、throws、finally进行管理3.Java异常处理机制：try catch捕获异常，]]></description><category></category></item><item><title><![CDATA[java序列化]]></title><link>https://blog.youkuaiyun.com/oBaiBaShiGe/article/details/10955711</link><guid>https://blog.youkuaiyun.com/oBaiBaShiGe/article/details/10955711</guid><author>oBaiBaShiGe</author><pubDate>Tue, 03 Sep 2013 08:46:02 +0800</pubDate><description><![CDATA[java序列化1.一种将 Java 对象的状态转换为字节数组，以便存储或传输的机制，以后，仍可以将字节数组转换回 Java 对象原有的状态。 2.被序列化的类需要实现 Serializable 接口，使用 ObjectInputStream 和 ObjectOutputStream 进行对象的读写3.序列化并不保存静态变量。4.虚拟机是否允许反序列化，不仅取决于类路径和功能代码是否一致，一]]></description><category></category></item><item><title><![CDATA[对 象]]></title><link>https://blog.youkuaiyun.com/oBaiBaShiGe/article/details/10955705</link><guid>https://blog.youkuaiyun.com/oBaiBaShiGe/article/details/10955705</guid><author>oBaiBaShiGe</author><pubDate>Tue, 03 Sep 2013 08:45:56 +0800</pubDate><description><![CDATA[11111111111]]></description><category></category></item><item><title><![CDATA[多态，继承，封装]]></title><link>https://blog.youkuaiyun.com/oBaiBaShiGe/article/details/10955701</link><guid>https://blog.youkuaiyun.com/oBaiBaShiGe/article/details/10955701</guid><author>oBaiBaShiGe</author><pubDate>Tue, 03 Sep 2013 08:45:51 +0800</pubDate><description><![CDATA[多态：  允许将子类类型的指针赋值给父类类型的指针。  方法的重写Overriding和重载Overloading是Java多态性的不同表现。封装：  隐藏对象的属性和实现细节，仅对外公开接口,控制在程序中属性的读和修改的访问级别。继承：继承所表达的就是一种对象类之间的相交关系，它使得某类对象可以继承另外一类对象的数据成员和成员方法。向上转型，向下转型：1。父类引用指向子类对]]></description><category></category></item></channel></rss>