Spring Castor用法示例详解 _项目示例

Spring和脚轮整合
Spring和脚轮整合的例子

借助CastorMarshaller类的帮助, 我们可以使用castor将Java对象编组为xml, 反之亦然。它是Marshaller和Unmarshaller接口的实现类。默认情况下, 它不需要任何进一步的配置。
Spring和Castor集成的示例(将Java对象编组为XML)
你需要创建以下文件, 以使用带有Castor的Spring将Java对象编组为XML：

Employee.java
applicationContext.xml
mapping.xml
Client.java

所需的Jar文件要运行此示例, 你需要加载：

Spring Core jar文件
Spring Web jar文件
castor-1.3.jar
castor-1.3-core.jar

下载spring的所有jar文件, 包括core, web, aop, mvc, j2ee, remoting, oxm, jdbc, orm等。
下载castor-1.3.jar
下载castor-1.3-core.jar
Employee.java
如果定义了三个属性id, setter和getter的名称和薪水。

package com.srcmini; 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
它定义了一个bean castorMarshallerBean, 其中Employee类与OXM框架绑定在一起。

< ?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="http://www.srcmini.com/com.srcmini.Employee"> < /property> < property name="mappingLocation" value="http://www.srcmini.com/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.srcmini.Employee" auto-complete="true" > < map-to xml="Employee" ns-uri="http://www.srcmini.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
它从applicationContext.xml文件获取Marshaller的实例, 并调用marshal方法。

package com.srcmini; 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"); } }

示例输出
employee.xml

< ?xml version="1.0" encoding="UTF-8"?> < dp:Employee xmlns:dp="http://www.srcmini.com" id="101"> < dp:name> Sonoo Jaiswal< /dp:name> < dp:salary> 100000.0< /dp:salary> < /dp:Employee>

下载此示例(使用Myeclipse IDE开发)
【Spring Castor用法示例详解】下载此示例(使用Eclipse IDE开发)