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Generic JavaBean Resources   【通过/WEB-INF/context.xml配置】 第一步,新建一个Bean   package model; public class Foo { private String ip; private int port; private String signSequence; public String getIp() { return ip; } public void setIp(String ip) { this.ip = ip; } public int ...

NIO

    博客分类:
  • Java
 http://tutorials.jenkov.com/java-nio/socketchannel.html   package com.gc; import java.io.FileInputStream; import java.io.FileOutputStream; import java.nio.ByteBuffer; import java.nio.CharBuffer; import java.nio.channels.FileChannel; import java.nio.charset.Charset; import java.nio.chars ...

Java加密解密

    博客分类:
  • Java
  这家伙是搞情报的么? http://snowolf.iteye.com/blog/735294

Maven 疑难杂症

  ArtifactTransferException: Failure to transfer org.hibernate:hibernate-core:jar:3.6.10.Final from http://localhost:8081/nexus/content/groups/public/ was cached in the local repository, resolution will not be reattempted until the update interval of nexus has elapsed or updates are forced.   ...

数字签名

    博客分类:
  • Java
  数字签名:靠加密解密算法进行支撑   单向散列算法 MD5,SHA 非对称密钥算法:RSA 数字签名算法:DSA(Digital Signture Algorithm)  数字签名标准:DSS(DigitalSinature Standard)     使用私钥对摘要进行加密,即为数字签名!     下图描述了数字签名的大概流程,具体流程比这个稍微复杂一些。    

PDF waterMark

  waterMark   In addtion to the PDF Post-processing options, consider the following workarounds:   1. Use a backgroud image for the body region.   2. Place an image in a region that overlaps(重叠) the following text.     For example, make region-before large enough to contain you image. Then ...
   Font and Text Attributes (字体)   <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE DTD SYSTEM "fo.dtd"> <fo:root xmlns:fo="http://www.w3.org/1999/XSL/Format"> <fo:layout-master-set> <fo:simple-page-master master-name=&q ...
  1.  URL->URLConnection 2.  BufferedInputStream 3.  BufferedOutputStream   String apikey = "abcde12345"; String url = "http://www.digg.com"; URL u = new URL("http://api.htm2pdf.co.uk/urltopdf?apikey=" + apikey + "&url=" + url + "&user ...

Java学习网站

    博客分类:
  • Java
  www.codeproject.com

搭建FO转PDF环境

熬到半夜,终于整出来了。   第一步,引入fo-1.0.jar <dependency> <groupId>org.apache.xmlgraphics</groupId> <artifactId>fop</artifactId> <version>1.0</version> </dependency>   第二步,编写1个测试fo,暂且叫做test01.xml Eclipse中配置外部dtd的方法,见ws-JAX中关于dtd的那篇文章 <?xml version ...
宋体 SimSun 黑体 SimHei 微软雅黑 Microsoft YaHei 微软正黑体 Microsoft JhengHei 新宋体 NSimSun 新细明体 PMingLiU 细明体 MingLiU 标楷体 DFKai-SB 仿宋 FangSong 楷体 KaiTi
XSL-FO is an XML language designed for describing all visual aspects of pagination documents.   The well known HTML is another language for specifying formatting semantics, but is more usable for documents that are presented to screen, and less for materials created for printing, because it doesn ...

常用对象的使用

  判断checkbox是否勾选,哪个才是效率最高的 http://jsperf.com/prop-vs-ischecked/5  
Ganglia是一种可扩展的分布式监控系统,主要用于监控各种网络服务器、集群系统等高性能计算机系统。是一种服务器性能监控软件。   下面是具体安装步骤(其它软件的安装步骤也差不多):   tar -zxvf ganglia-3.0.0.tar.gz  #将安装包解压缩,生成安装目录 cd ganglia-3.0.0                     #切换到安装目录 ./configure                              #配置安装包   make                                      #编译安装包 mak ...
crontab命令进行任务调度,自动执行一些脚本,完成特定任务。 如,启动app,日志拷贝等 每个用户都有自己的调度crontab vi /etc/crontab   crontab的初始内容: SHELL=/bin/bash PATH=/sbin:/bin:/usr/sbin:/usr/bin MAILTO=root HOME=/   #run-parts 01   *  *  *  *    root run-parts /etc/cron.hourly 02  4  *  *  *    root run-parts /etc/cron.daily 22  ...
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