public class CompressImage {
	private static final Log log = LogFactory.getLog(CompressImage.class);

	private int destWidth;// 压缩后的长
	private int destHeight;// 压缩后的高

	/**
	 * 指定压缩后的长度，按比例计算出压缩后的高度
	 * 
	 * @param width
	 */
	public CompressImage(int width) {
		this.destWidth = width;

	}

	/**
	 * 指定压缩后的长度和高度
	 * 
	 * @param width
	 * @param height
	 */
	public CompressImage(int width, int height) {
		this.destHeight = height;
		this.destWidth = width;

	}

	// 根据长度计算出高度
	private int getHeight(int width, int height)  	{

		if (width > destWidth) {
			float scale;// 计算原图比例
			scale = (float) width / (float) destWidth;
			float hh = height / scale;
			return (int) hh;
		} else {
			this.destWidth = width;
			return height;
		}

	}

	/**
	 * 压缩图片分辨率
	 * 
	 * @param srcPath
	 * @param destPath
	 * @throws Exception
	 */
	public void compress(String srcPath, String destPath) {
		try {
			File _file = new File(srcPath);
			log.debug("SrcImagePath：" + _file.getAbsolutePath());
			Image src = javax.imageio.ImageIO.read(_file);
			int wideth = src.getWidth(null);// 获得图片长

			int height = src.getHeight(null);// 获得图片高度
			log.debug("StrImage：" + wideth + "*" + height);
			int htagHeight = this.destHeight == 0 ? this.getHeight(wideth,
					height) : this.destHeight;
			BufferedImage tag = new BufferedImage(this.destWidth, htagHeight,
					BufferedImage.TYPE_INT_RGB);
			Graphics g = tag.getGraphics();
			g.drawImage(src, 0, 0, this.destWidth, htagHeight, null);
			// if (t != null) {// 在底部图片上写文字
			// g.setColor(new Color(242, 242, 242));
			// g.fillRect(this.getWideth() - 120, htagHeight - 18, 120, 18);
			// g.setColor(new Color(180, 180, 180));
			// g.drawRect(this.getWideth() - 120, htagHeight - 18, 119, 17);
			// g.setColor(new Color(255, 102, 0));
			// g.drawString(t, this.getWideth() - 100, htagHeight - 5);
			// }
			log.debug("DestImagePath：" + _file.getAbsolutePath());
			log.debug("DestImage：" + tag.getWidth() + "*" + tag.getHeight());
			FileOutputStream out = new FileOutputStream(destPath);
			JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);
			encoder.encode(tag);
			out.close();

		} catch (Exception e) {
			log.error("Compress Image [" + srcPath + "] error！！\r\n" + e);

		}
	}

}

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1、配置数据源文件
数据源必需以 **-ds.xml作为文件名，并放在server\default\deploy下，不同数据库配置不同，可参考\docs\examples\jca下的数据源配置

下面配置多个数据源例子：

<?xml version="1.0" encoding="GBK"?>

<!-- ===================================================================== -->
<!--                                                                       -->
<!--  JBoss Server Configuration                                           -->
<!--                                                                       -->
<!-- ===================================================================== -->

<!-- $Id: mssql-ds.xml 63175 2007-05-21 16:26:06Z rrajesh $ -->

  <!-- ======================================================================-->
  <!-- New ConnectionManager setup for Microsoft SQL Server 2005  driver     -->
  <!-- Further information about the Microsoft JDBC Driver version 1.1      -->
  <!-- can be found here:                                                   -->
  <!-- http://msdn2.microsoft.com/en-us/library/aa496082.aspx               -->
  <!-- ===================================================================== -->

<datasources>
<!--网络电话本数据源 Mysql-->
  <local-tx-datasource>
    <jndi-name>jdbc/aurora_contact_web</jndi-name>
    <connection-url>jdbc:mysql://192.168.1.166/aurora_contact_web?autoReconnect=true&useUnicode=true&characterEncoding=utf-8</connection-url>
    <driver-class>com.mysql.jdbc.Driver</driver-class>
    <user-name>app</user-name>
    <password>app</password>
        <!-- sql to call when connection is created
        <new-connection-sql>some arbitrary sql</new-connection-sql>
        -->

        <!-- sql to call on an existing pooled connection when it is obtained from pool
        <check-valid-connection-sql>some arbitrary sql</check-valid-connection-sql>
        -->

      <!-- corresponding type-mapping in the standardjbosscmp-jdbc.xml -->
      <metadata>
         <type-mapping>mysql</type-mapping>
      </metadata>
  </local-tx-datasource>

  <!--Aurora 数据源 Postgres-->

     <local-tx-datasource>
    <jndi-name>jdbc/aurora</jndi-name>
    <connection-url>jdbc:postgresql://localhost/aurora?useUnicode=true&characterEncoding=utf-8"</connection-url>
    <driver-class>org.postgresql.Driver</driver-class>
    <user-name>admin</user-name>
    <password>admin</password>
        <!-- sql to call when connection is created
        <new-connection-sql>some arbitrary sql</new-connection-sql>
        -->

        <!-- sql to call on an existing pooled connection when it is obtained from pool
        <check-valid-connection-sql>some arbitrary sql</check-valid-connection-sql>
        -->

      <!-- corresponding type-mapping in the standardjbosscmp-jdbc.xml -->
      <metadata>
         <type-mapping>PostgreSQL</type-mapping>
      </metadata>
  </local-tx-datasource>

</datasources>

 


2、配置jboss-web.xml
该文件为jboss特有文件，Tomcat应用需在WEB-INF中加入该文件，其作用与context.xml类似 

 

<?xml version="1.0" encoding="GBK"?>
<!DOCTYPE jboss-web
    PUBLIC "-//JBoss//DTD Web Application 2.3V2//EN"
    "http://www.jboss.org/j2ee/dtd/jboss-web_3_2.dtd">
<jboss-web>
<!--配置jaas的jndi-->
<!--<security-domain>java:/jaas/DefaultLogin</security-domain>   -->
<!-- 配置jndi方式 -->
<resource-ref>
<!-- 取这个名字要和web.xml中对应起来 -->
<res-ref-name>jdbc/aurora_contact_web</res-ref-name>
<!-- 数据方式 -->
<res-type>javax.sql.DataSource</res-type>
<!-- 这个名字是和 aurora-ds.xml中的jndi-name对应着，不同的就是多加了一个java:/,这是个规范 -->
<jndi-name>java:/jdbc/aurora_contact_web</jndi-name>
</resource-ref>
</jboss-web>

 
3、web.xml

<resource-ref> 
<description> </description> 
<res-ref-name>jdbc/aurora_contact_web</res-ref-name><!--与jboss-web.xml对应--> 
<res-type>javax.sql.DataSource</res-type> 
<res-auth>Container</res-auth> 
</resource-ref> 

 
4、应用使用数据源

<jee:jndi-lookup id="dataSource" jndi-name="java:comp/env/jdbc/aurora_contact_web"/>

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    <bean id="dataSource" class="org.springframework.jndi.JndiObjectFactoryBean">
        <property name="jndiName"><value>java:comp/env/jdbc/aurora_contact_web</value></property>
    </bean> 

  <jee:jndi-lookup id="dataSource" jndi-name="java:comp/env/jdbc/aurora"/> 

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@Stateless(mappedName="ejb/MainActionJNDI")//远程JNDI
@Name("MainAction")

@Interceptors({org.jboss.seam.ejb.SeamInterceptor.class})
@AutoCreate
public class MainActionBean implements MainAction,MainActionRemote {

package cn.astrocom.ejb.client;

import java.util.List;
import java.util.Properties;

import javax.naming.Context;
import javax.naming.InitialContext;

import cn.astrocom.extseam.MainActionRemote;
import cn.astrocom.extseam.bo.MainGrid;

/**
 *
 * @author fanzhi_kong
 *
 */
public class MainActionClient {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		 
		try {
			Context jndiContext = getInitialJNDIFileContext();
			// Context jndiContext = getInitialPropertiesContext();
			/*
			 * 2.0 Object ref = jndiContext.lookup("ejb/MainActionJNDI");
			 * MainActionRemote mainAction = (MainActionRemote)
			 * PortableRemoteObject .narrow(ref, MainActionRemote.class);
			 */
			// 3.0
			MainActionRemote mainAction = (MainActionRemote) jndiContext
					.lookup("ejb/MainActionJNDI");
 
		} catch (Exception ne) {
			ne.printStackTrace();
		}

	}

	// JNDI上下文 方式一
	public static Context getInitialPropertiesContext()
			throws javax.naming.NamingException {

		Properties props = new Properties();
		props.setProperty("java.naming.factory.initial",
				"com.sun.enterprise.naming.SerialInitContextFactory");
		props.setProperty("java.naming.factory.url.pkgs",
				"com.sun.enterprise.naming");
		props.setProperty("java.naming.factory.state",
				"com.sun.corba.ee.impl.presentation.rmi.JNDIStateFactoryImpl");

	    //EJB容器的ip
		props.setProperty("org.omg.CORBA.ORBInitialHost", "172.16.140.103");

       //EJB容器端口,默认为：3700
		props.setProperty("org.omg.CORBA.ORBInitialPort", "3700");

		InitialContext ic = new InitialContext(props);

		return ic;
	}

	/**
	 * JNDI上下文 方式二读配置文件 文件为：jndi.properties
	 *
	 * @return
	 * @throws javax.naming.NamingException
	 */
	public static Context getInitialJNDIFileContext()
			throws javax.naming.NamingException {

		return new InitialContext();

	}

}

# optional. Defaults to localhost. Only needed if web server is running
# on a different host than the appserver
org.omg.CORBA.ORBInitialHost=172.16.140.103

# optional. Defaults to 3700. Only needed if target orb port is not
# 3700.
org.omg.CORBA.ORBInitialPort=3700


java.naming.factory.initial=com.sun.enterprise.naming.SerialInitContextFactory
java.naming.factory.url.pkgs=com.sun.enterprise.naming
java.naming.factory.state=com.sun.corba.ee.impl.presentation.rmi.JNDIStateFactoryImpl

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	/**
	 * 打印文档，String输出
	 * 
	 * @param doc
	 * @param encoding
	 */
	public static String printString(Document doc, String encoding) {
		if (encoding == null)// 默认为UTF-8编码
		{
			encoding = "UTF-8";
		}
		String docStr = null;
		OutputFormat format = OutputFormat.createPrettyPrint();
		format.setEncoding(encoding);
		PrintStream defaultOut = System.out;// 保存原来的sysout
		ByteArrayOutputStream out = new ByteArrayOutputStream();
		System.setOut(new PrintStream(out)); // 重定向sysout

		XMLWriter systemWriter;
		try {
			systemWriter = new XMLWriter(System.out, format);
			systemWriter.write(doc);

			systemWriter.close();

			// 屏幕输出
			System.setOut(defaultOut); // 恢复原来的sysout
			docStr = new String(out.toByteArray(), encoding);// 生成String串

		} catch (UnsupportedEncodingException e) {
			System.err.println(e);
		} catch (IOException e) {
			System.err.println(e);
		}
		return docStr;
	}

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@echo off
if "%OS%" == "Windows_NT" setlocal
rem ---------------------------------------------------------------------------
rem NT Service Install/Uninstall script
rem
rem Options
rem install                Install the service using Tomcat5 as service name.
rem                        Service is installed using default settings.
rem remove                 Remove the service from the System.
rem
rem name        (optional) If the second argument is present it is considered
rem                        to be new service name                                           
rem
rem $Id: service.bat 467182 2006-10-23 23:47:06Z markt $
rem ---------------------------------------------------------------------------

rem Guess CATALINA_HOME if not defined
set CURRENT_DIR=%cd%
if not "%CATALINA_HOME%" == "" goto gotHome
set CATALINA_HOME=%cd%
if exist "%CATALINA_HOME%\bin\tomcat6.exe" goto okHome
rem CD to the upper dir
cd ..
set CATALINA_HOME=%cd%
:gotHome
if exist "%CATALINA_HOME%\bin\tomcat6.exe" goto okHome
echo The tomcat.exe was not found...
echo The CATALINA_HOME environment variable is not defined correctly.
echo This environment variable is needed to run this program
goto end
rem Make sure prerequisite environment variables are set
if not "%JAVA_HOME%" == "" goto okHome
echo The JAVA_HOME environment variable is not defined
echo This environment variable is needed to run this program
goto end 
:okHome
if not "%CATALINA_BASE%" == "" goto gotBase
set CATALINA_BASE=%CATALINA_HOME%
:gotBase
 
set EXECUTABLE=%CATALINA_HOME%\bin\tomcat6.exe

rem Set default Service name
set SERVICE_NAME=Tomcat6
set PR_DISPLAYNAME=Apache Tomcat

if "%1" == "" goto displayUsage
if "%2" == "" goto setServiceName
set SERVICE_NAME=%2
set PR_DISPLAYNAME=Apache Tomcat %2
:setServiceName
if %1 == install goto doInstall
if %1 == remove goto doRemove
if %1 == uninstall goto doRemove
echo Unknown parameter "%1"
:displayUsage
echo.
echo Usage: service.bat install/remove [service_name]
goto end

:doRemove
rem Remove the service
"%EXECUTABLE%" //DS//%SERVICE_NAME%
echo The service '%SERVICE_NAME%' has been removed
goto end

:doInstall
rem Install the service
echo Installing the service '%SERVICE_NAME%' ...
echo Using CATALINA_HOME:    %CATALINA_HOME%
echo Using CATALINA_BASE:    %CATALINA_BASE%
echo Using JAVA_HOME:        %JAVA_HOME%

rem Use the environment variables as an example
rem Each command line option is prefixed with PR_

set PR_DESCRIPTION=Apache Tomcat Server - http://jakarta.apache.org/tomcat
set PR_INSTALL=%EXECUTABLE%
set PR_LOGPATH=%CATALINA_BASE%\logs
set PR_CLASSPATH=%CATALINA_HOME%\bin\bootstrap.jar
rem Set the server jvm from JAVA_HOME
set PR_JVM=%JAVA_HOME%\jre\bin\server\jvm.dll
if exist "%PR_JVM%" goto foundJvm
rem Set the client jvm from JAVA_HOME
set PR_JVM=%JAVA_HOME%\jre\bin\client\jvm.dll
if exist "%PR_JVM%" goto foundJvm
set PR_JVM=auto
:foundJvm
echo Using JVM:              %PR_JVM%
rem 设定启动方式为自启动
"%EXECUTABLE%" //IS//%SERVICE_NAME% --StartClass org.apache.catalina.startup.Bootstrap --StopClass org.apache.catalina.startup.Bootstrap --StartParams start --StopParams stop --Startup Automatic
if not errorlevel 1 goto installed
echo Failed installing '%SERVICE_NAME%' service
goto end
:installed
rem Clear the environment variables. They are not needed any more.
set PR_DISPLAYNAME=
set PR_DESCRIPTION=
set PR_INSTALL=
set PR_LOGPATH=
set PR_CLASSPATH=
set PR_JVM=
rem Set extra parameters
rem 设定虚拟内存
"%EXECUTABLE%" //US//%SERVICE_NAME% --JvmOptions "-Xms512M;-Xmx512M;-XX:NewRatio=3;-XX:PermSize=100M;-XX:MaxPermSize=100M;-Dcatalina.base=%CATALINA_BASE%;-Dcatalina.home=%CATALINA_HOME%;-Djava.endorsed.dirs=%CATALINA_HOME%\endorsed" --StartMode jvm --StopMode jvm
rem More extra parameters
set PR_LOGPATH=%CATALINA_BASE%\logs
set PR_STDOUTPUT=auto
set PR_STDERROR=auto
"%EXECUTABLE%" //US//%SERVICE_NAME% ++JvmOptions "-Djava.io.tmpdir=%CATALINA_BASE%\temp" --JvmMs 128 --JvmMx 256
echo The service '%SERVICE_NAME%' has been installed.

:end
cd %CURRENT_DIR%

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<beans
  xmlns="http://www.springframework.org/schema/beans"
  xmlns:amq="http://activemq.org/config/1.0"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd
  http://activemq.org/config/1.0 http://activemq.apache.org/schema/activemq-core.xsd
  http://activemq.apache.org/camel/schema/spring http://activemq.apache.org/camel/schema/spring/camel-spring.xsd">
  
  <!--  lets create an embedded ActiveMQ Broker -->
  <amq:broker useJmx="false" persistent="false">
    <amq:transportConnectors>
      <amq:transportConnector uri="tcp://localhost:0" />
    </amq:transportConnectors>
  </amq:broker>

   <!--  ActiveMQ destinations to use  -->
  <amq:queue id="destination"  physicalName="org.apache.activemq.spring.Test.spring.embedded"/>

  <!-- JMS ConnectionFactory to use, configuring the embedded broker using XML -->
  <amq:connectionFactory id="jmsFactory" brokerURL="vm://localhost"/>
  

  <!-- Spring JMS Template -->
  <bean id="myJmsTemplate" class="org.springframework.jms.core.JmsTemplate">
    <property name="connectionFactory">
      <!-- lets wrap in a pool to avoid creating a connection per send -->
      <bean class="org.springframework.jms.connection.SingleConnectionFactory">
        <property name="targetConnectionFactory">
          <ref local="jmsFactory" />
        </property>
      </bean>
    </property>
  </bean>

  <bean id="consumerJmsTemplate" class="org.springframework.jms.core.JmsTemplate">
    <property name="connectionFactory" ref="jmsFactory"/>
  </bean>
</beans>

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OSWorkflow

www.opensymphony.com/osworkflow/

http://wiki.opensymphony.com/pages/viewpage.action?pageId=2481

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HttpClient 是 Apache Jakarta Common 下的子项目，可以用来提供高效的、最新的、功能丰富的支持 HTTP 协议的客户端编程工具包，并且它支持 HTTP 协议最新的版本和建议。本文首先介绍 HTTPClient，然后根据作者实际工作经验给出了一些常见问题的解决方法。 HttpClient简介 HTTP 协议可能是现在 Internet 上使用得最多、最重要的协议了，越来越多的 Java 应用程序需要直接通过 HTTP 协议来访问网络资源。虽然在 JDK 的 java.net 包中已经提供了访问 HTTP 协议的基本功能，但是对于大部分应用程序来说，JDK 库本身提供的功能还不够丰富和灵活。HttpClient 是 Apache Jakarta Common 下的子项目，用来提供高效的、最新的、功能丰富的支持 HTTP 协议的客户端编程工具包，并且它支持 HTTP 协议最新的版本和建议。HttpClient 已经应用在很多的项目中，比如 Apache Jakarta 上很著名的另外两个开源项目 Cactus 和 HTMLUnit 都使用了 HttpClient，更多使用 HttpClient 的应用可以参见http://wiki.apache.org/jakarta-httpclient/HttpClientPowered。HttpClient 项目非常活跃，使用的人还是非常多的

http://jakarta.apache.org/commons/httpclient/

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原文地址：ostermiller.org/convert_java_outputstream_inputstream.html

Convert a Java OutputStream to an InputStream

If you have ever programmed using Java IO, you will quickly run into a situation in which a class creates data on an OutputStream and you need to send it to another class that expects to read the data from an input stream. You'll soon be asking the question, "How do I convert an OutputStream to an InputStream?"

Nowhere in Java will you find a OutpStreamToInputStreamConverter class. Luckily, there are several ways to go about this.

Method 1: Buffer the data using a byte array

The easiest method is to buffer the data using a byte array. The code will look something like this:

  ByteArrayOutputStream out = new ByteArrayOutputStream();
  class1.putDataOnOutputStream(out);
  class2.processDataFromInputStream(
    new ByteArrayInputStream(out.toByteArray())
  );

That's it! The OutputStream has been converted to an InputStream.

Method 2: Use pipes

The problem with the first method is that you must actually have enough memory to buffer the entire amount of data. You could buffer larger amounts of data by using the filesystem rather than memory, but either way there is a hard limit to the size of the data that can be handled. The solution is create a thread to produce the data to the PipedOutputStream. The current thread can then read the data as it comes in.

  PipedInputStream in = new PipedInputStream();
  PipedOUtputStream out = new PipedOutputStream(in);
  new Thread(
    new Runnable(){
      public void run(){
        class1.putDataOnOutputStream(out);
      }
    }
  ).start();
  class2.processDataFromInputStream(in);

Method 3: Use Circular Buffers

The two piped streams in method two actually manage a hidden circular buffer. It is conceptually easier to use an explicit Circular Buffer. CircularBuffers offer several advantages:

• One CircularBuffer class rather than two pipe classes.
• It is easier to convert between the "buffer all data" and "extra threads" approaches.
• You can change the buffer size rather than relying on the hard-coded 1k of buffer in the pipes.

Multiple Threaded Example of a Circular Buffer

  CircularByteBuffer cbb = new CircularByteBuffer();
  new Thread(
    new Runnable(){
      public void run(){
        class1.putDataOnOutputStream(cbb.getOutputStream());
      }
    }
  ).start();
  class2.processDataFromInputStream(cbb.getInputStream());

Single Threaded Example of a Circular Buffer

  // buffer all data in a circular buffer of infinite size
  CircularByteBuffer cbb = new CircularByteBuffer(CircularByteBuffer.INFINITE_SIZE);
  class1.putDataOnOutputStream(cbb.getOutputStream());
  class2.processDataFromInputStream(cbb.getInputStream());

See also: Converting a Writer to a Reader

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原文地址：ostermiller.org/convert_java_writer_reader.html

Convert a Java Writer to a Reader

If you have ever programmed using Java IO, you will quickly run into a situation in which a class creates data on a Writer and you need to send it to another class that expects to read the data from a Reader. You'll soon be asking the question, "How do I convert a Writer to a Reader?"

Nowhere in Java will you find a WriterToReaderConverter class. Luckily, there are several ways to go about this.

Method 1: Buffer the data using a String

The easiest method is to buffer the data using a String. The code will look something like this:

  StringWriter out = new StringWriter();
  class1.putDataOnWriter(out);
  class2.processDataFromReader(
    new StringReader(out.toString())
  );

That's it! The Writer has been converted to a Reader.

Method 2: Use pipes

The problem with the first method is that you must actually have enough memory to buffer the entire amount of data. You could buffer larger amounts of data by using the filesystem rather than memory, but either way there is a hard limit to the size of the data that can be handled. The solution is create a thread to produce the data to the PipedWriter. The current thread can then read the data as it comes in.

  PipedReader in = new PipedReader();
  PipedWriter out = new PipedWriter(in);
  new Thread(
    new Runnable(){
      public void run(){
        class1.putDataOnWriter(out);
      }
    }
  ).start();
  class2.processDataFromReader(in);

Method 3: Use Circular Buffers

The two piped streams in method two actually manage a hidden circular buffer. It is conceptually easier to use an explicit Circular Buffer. CircularBuffers offer several advantages:

• One CircularBuffer class rather than two pipe classes.
• It is easier to convert between the "buffer all data" and "two threads" approaches.
• You can change the buffer size rather than relying on the hard-coded 1k of buffer in the pipes.

Multiple Threaded Example of a Circular Buffer

  CircularCharBuffer ccb = new CircularCharBuffer();
  new Thread(
    new Runnable(){
      public void run(){
        class1.putDataOnWriter(ccb.getWriter());
      }
    }
  ).start();
  class2.processDataFromReader(ccb.getReader());

Single Threaded Example of a Circular Buffer

  // buffer all data in a circular buffer of infinite size
  CircularCharBuffer ccb = new CircularCharBuffer(CircularCharBuffer.INFINITE_SIZE);
  class1.putDataOnWriter(ccb.getWriter());
  class2.processDataFromReader(ccb.getReader());

See also: Converting an OutputStream to an InputStream

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