ITPub博客

最近做了一个java　webstart的项目，java webstart用起来很简单，在做的过程中，也碰到些技术性的问题。比如如何生成动态的jnlp等问题，在解决相关问题的同时，在解决问题的时候，查看最多的还是官方提供的文档及资料，以及到sun的webstart上找到相关的解决办法，当时碰到的几个技术问题是：1.从web传递相关的参数给application,　　解决办法：用动态jnlp文件（jsp实现jnlp）,同时用到如下传参办法　　　application-desc ElementThe application element indicates that the JNLP file is launching an application (as opposed to an ap

JDBC differences between the DB2 Universal JDBC Driver and other DB2 JDBC drivers 1:DB2 Universal JDBC Driver:url="jdbc:db2://host:50000/DataBase";driver:com.ibm.db2.jcc.DB2Driverjars:db2jcc.jarDataBase Encoding:utf-8Installs the db2jcc.jar and sqlj.zip files and adds them to the system 4 CLASSPATH 4 Installs file db2jcct2.dll, which is required for Universal Type 2 Connectivity, in the sqllibbin 4 directory Exception1: encoding not supported:com.ibm.db2.jcc.b.DisconnectException: enco

Oracle采用嵌套3层的查询语句结合rownum来实现分页，这在Oracle上是最快的方式，如果只是一层或者两层的查询语句的rownum不能支持order by。 程序： public String getLimitString(String sql) { StringBuffer pagingSelect = new StringBuffer(100); pagingSelect.append("select * from ( select row_.*, rownum rownum_ from ( "); pagingSelect.append(sql); pagingSelect.append(" ) row_ where rownum ?"); return pagingSelect.toString(); } sql实例： select * from ( select row_.

1.rpm -i RealPlayer10GOLD.rpm但不能运行。后在/usr/local目录下找到它的安装目录：/usr/local/RealPlay，一运行./usr/local/RealPlay/.realplay出错如下错误信息：[root@localhost ~]# /usr/local/RealPlayer/realplay/usr/local/RealPlayer/realplay.bin: error while loading shared libraries: libstdc++.so.5:cannot open shared object file: No such file or directory2.查找libstdc++.so.5这个文件[root@localhost ~]# find /usr/lib libstdc++.so.5...........find: sx: 没有那个文件或目录真是郁闷。接下来用yum下载安装3.yum