spring xml和 obj转换

转自:http://www.yiibai.com/spring/spring-objectxml-mapping-example.html

package com.yiibai.core.model;

public class Customer {

	String name;
	int age;
	boolean flag;
	String address;

	//standard getter, setter and toString() methods.
}

package com.yiibai.core;

import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import javax.xml.transform.stream.StreamResult;
import javax.xml.transform.stream.StreamSource;
import org.springframework.oxm.Marshaller;
import org.springframework.oxm.Unmarshaller;

public class XMLConverter {

	private Marshaller marshaller;
	private Unmarshaller unmarshaller;

	public Marshaller getMarshaller() {
		return marshaller;
	}

	public void setMarshaller(Marshaller marshaller) {
		this.marshaller = marshaller;
	}

	public Unmarshaller getUnmarshaller() {
		return unmarshaller;
	}

	public void setUnmarshaller(Unmarshaller unmarshaller) {
		this.unmarshaller = unmarshaller;
	}

	public void convertFromObjectToXML(Object object, String filepath)
		throws IOException {

		FileOutputStream os = null;
		try {
			os = new FileOutputStream(filepath);
			getMarshaller().marshal(object, new StreamResult(os));
		} finally {
			if (os != null) {
				os.close();
			}
		}
	}

	public Object convertFromXMLToObject(String xmlfile) throws IOException {

		FileInputStream is = null;
		try {
			is = new FileInputStream(xmlfile);
			return getUnmarshaller().unmarshal(new StreamSource(is));
		} finally {
			if (is != null) {
				is.close();
			}
		}
	}

}

引用

xml配置

<bean id="XMLConverter" class="com.yiibai.core.XMLConverter">
		<property name="marshaller" ref="castorMarshaller" />
		<property name="unmarshaller" ref="castorMarshaller" />
	</bean>
	<bean id="castorMarshaller" class="org.springframework.oxm.castor.CastorMarshaller" />

引用

运行测试

package com.yiibai.core;

import java.io.IOException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import com.yiibai.core.model.Customer;

public class App {
	private static final String XML_FILE_NAME = "customer.xml";
	
	public static void main(String[] args) throws IOException {
		ApplicationContext appContext = new ClassPathXmlApplicationContext("App.xml");
		XMLConverter converter = (XMLConverter) appContext.getBean("XMLConverter");
		
		Customer customer = new Customer();
		customer.setName("yiibai");
		customer.setAge(28);
		customer.setFlag(true);
		customer.setAddress("Haikou haidiandao");
		
		System.out.println("Convert Object to XML!");
		//from object to XML file
		converter.convertFromObjectToXML(customer, XML_FILE_NAME);
		System.out.println("Done \n");
		
		System.out.println("Convert XML back to Object!");
		//from XML to object
		Customer customer2 = (Customer)converter.convertFromXMLToObject(XML_FILE_NAME);
		System.out.println(customer2);
		System.out.println("Done");
		
	}
}

引用

输出:
Convert Object to XML!
Done

Convert XML back to Object!
Customer [name=yiibai, age=28, flag=true, address=Haikou Haidiandao]
Done