借助 CastorMarshaller 類，我們可以使用Castor將Java對(duì)象編組為xml，反之亦然。它是Marshaller和Unmarshaller接口的實(shí)現(xiàn)類。默認(rèn)情況下，不需要任何其他配置。
您需要?jiǎng)?chuàng)建以下文件使用帶有Castor的Spring將Java對(duì)象編組為XML:
Employee.java applicationContext.xml mapping.xml Client.java
要運(yùn)行此示例，您需要加載:
Spring Core jar文件 Spring Web jar文件 castor-1.3.jar castor-1.3-core.jar
下載spring的所有jar文件，包括core，web，aop，mvc，j2ee，remoting ，oxm，jdbc，orm等。
下載castor-1.3.jar
下載castor -1.3-core.jar
Employee.java
如果使用設(shè)置器和獲取器定義了三個(gè)屬性id，名稱和薪水。
package com.nhooo;
public class Employee {
private int id;
private String name;
private float salary;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public float getSalary() {
return salary;
}
public void setSalary(float salary) {
this.salary = salary;
}
}
applicationContext.xml
它定義了一個(gè)Bean castorMarshallerBean，其中Employee類與OXM框架綁定。
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" 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-3.0.xsd"> <bean id="castorMarshallerBean" class="org.springframework.oxm.castor.CastorMarshaller"> <property name="targetClass" value="com.nhooo.Employee"></property> <property name="mappingLocation" value="mapping.xml"></property> </bean> </beans>
mapping.xml
<?xml version="1.0"?> <!DOCTYPE mapping public "-//EXOLAB/Castor Mapping DTD Version 1.0//EN" "http://castor.org/mapping.dtd"> <mapping> <class name="com.nhooo.Employee" auto-complete="true" > <map-to xml="Employee" ns-uri="http://www.soo66.com" ns-prefix="dp"/> <field name="id" type="integer"> <bind-xml name="id" node="attribute"></bind-xml> </field> <field name="name"> <bind-xml name="name"></bind-xml> </field> <field name="salary"> <bind-xml name="salary" type="float"></bind-xml> </field> </class> </mapping>
Client.java
它從applicationContext.xml文件獲取Marshaller的實(shí)例并調(diào)用marshal方法。
package com.nhooo;
import java.io.FileWriter;
import java.io.IOException;
import javax.xml.transform.stream.StreamResult;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.oxm.Marshaller;
public class Client{
public static void main(String[] args)throws IOException{
ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");
Marshaller marshaller = (Marshaller)context.getBean("castorMarshallerBean");
Employee employee=new Employee();
employee.setId(101);
employee.setName("Sonoo Jaiswal");
employee.setSalary(100000);
marshaller.marshal(employee, new StreamResult(new FileWriter("employee.xml")));
System.out.println("XML Created Sucessfully");
}
}
employee.xml
<?xml version="1.0" encoding="UTF-8"?> <dp:Employee xmlns:dp="http://www.soo66.com" id="101"> <dp:name>Sonoo Jaiswal</dp:name> <dp:salary>100000.0</dp:salary> </dp:Employee>