jox-1.17b3.jar

通过JOX来实现从JavaBeans到XML文件的相互转换。 为了灵活的满足Web应用和Web services需求的变化，Java和XML的轻便性和可扩展性使它们成为解决这一问题的理想选择。SAX (Simple API for XML), DOM (document．nbspObject Model), XSL (Extensible Stylesheet Language), XSLT (XSL Transformations), SOAP (Simple Object Access Protocol), and BML (Bean Markup Language)是XML领域内的相关技术。本文集合了Java和XML轻便和可扩展的优点，但又不需要开发人员了解上述的相关技术。 在Java分布式应用中使用远程方法调用（RMI），而不是直接用底层的socket或其它网络链接代码。EJB技术也使开发人员从transaction，recovery, activation等底层机制中解放出来。同样，使用本文的JavaBean－XML映射组件，开发人员也不用直接处理与XML有关的APIs。 1.先定义javaBean package com.wutka.jox.test; import com.wutka.jox. * ; import java.util. * ; public class TestBean implements java.io.Serializable { protected int foo; protected String bar; protected java.util.Date baz; protected Vector thingies; protected TestSubbean subbean; public TestBean() { bar = "" ; baz = new Date(); thingies = new Vector(); } public int getFoo() { return foo; } public void setFoo( int aFoo) { foo = aFoo; } public String getBar() { return bar; } public void setBar(String aBar) { bar = aBar; } public java.util.Date getBaz() { return baz; } public void setBaz(java.util.Date aBaz) { baz = aBaz; } public TestSubbean getSub() { return subbean; } public void setSub(TestSubbean aSub) { subbean = aSub; } public String[] getThingies() { String[] retThingies = new String[thingies.size()]; if (thingies.size() > 0 ) thingies.copyInto(retThingies); return retThingies; } public void setThingies(String[] newThingies) { thingies = new Vector(newThingies.length); for ( int i = 0 ; i < newThingies.length; i ++ ) { thingies.addElement(newThingies[i]); } } public String getThingies( int i) { return (String) thingies.elementAt(i); } public void setThingies( int i, String thingy) { thingies.setElementAt(thingy, i); } public String toString() { StringBuffer ret = new StringBuffer( " foo= " + foo + " ;bar= " + bar + " ;baz= " + baz.toString() + " ;thingies= " ); for ( int i = 0 ; i < thingies.size(); i ++ ) { if (i > 0 ) ret.append( " , " ); ret.append((String) thingies.elementAt(i)); } ret.append( " ;sub= " ); ret.append(subbean.toString()); return ret.toString(); } } 2.xml文件 &lt;? xml version="1.0" ?&gt; < MarkTest > < thingies >网 </ thingies > < thingies > 载 </ thingies > < thingies > 下 </ thingies > < thingies > 托 </ thingies > < thingies > 灵 </ thingies > < foo > 5 </ foo > < baz > 6/25/00 12:46 AM </ baz > < bar > This is the website value </ bar > < sub > < age > 1 </ age > < name > wangdei </ name > </ sub > </ MarkTest > 下面的程序是把xml转为成javaBean package com.wutka.jox.test; import com.wutka.jox. * ; import java.io. * ; public class TestDeser { public static void main(String[] args) { try { FileInputStream in = new FileInputStream( " bean.xml " ); JOXBeanInputStream joxIn = new JOXBeanInputStream(in); TestBean testBean = (TestBean) joxIn.readObject( TestBean. class ); System.out.println(testBean); } catch (Exception exc) { exc.printStackTrace(); } } } 下面的程序是把javaBean转为成xml package com.wutka.jox.test; import com.wutka.jox. * ; import java.io. * ; public class TestSer { public static void main(String[] args) { try { TestBean b = new TestBean(); b.setFoo( 5 ); b.setBar( " This is the bar value " ); b.setThingies( new String[] { " 网 " , " 载 " , " 下 " , " 托 " , " 灵 " } ); TestSubbean sub = new TestSubbean(); sub.setName( " Mark " ); sub.setAge( 35 ); b.setSub(sub); FileOutputStream fileOut = new FileOutputStream( " bean.xml " ); JOXBeanOutputStream joxOut = new JOXBeanOutputStream(fileOut); joxOut.writeObject( " MarkTest " , b); joxOut.close(); } } }