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import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.StringReader;
import java.io.StringWriter;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Marshaller;
import javax.xml.bind.Unmarshaller;
/**
* 封装了XML转换成object,object转换成XML的代码
*
* @author Steven
*
*/
public class XMLUtil {
/**
* 将对象直接转换成String类型的 XML输出
*
* @param obj
* @return
*/
public static String convertToXml(Object obj) {
// 创建输出流
StringWriter sw = new StringWriter();
try {
// 利用jdk中自带的转换类实现
JAXBContext context = JAXBContext.newInstance(obj.getClass());
Marshaller marshaller = context.createMarshaller();
// 格式化xml输出的格式
marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT,
Boolean.TRUE);
// 将对象转换成输出流形式的xml
marshaller.marshal(obj, sw);
} catch (JAXBException e) {
e.printStackTrace();
}
return sw.toString();
}
/**
* 将对象根据路径转换成xml文件
*
* @param obj
* @param path
* @return
*/
public static void convertToXml(Object obj, String path) {
try {
// 利用jdk中自带的转换类实现
JAXBContext context = JAXBContext.newInstance(obj.getClass());
Marshaller marshaller = context.createMarshaller();
// 格式化xml输出的格式
marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT,
Boolean.TRUE);
// 将对象转换成输出流形式的xml
// 创建输出流
FileWriter fw = null;
try {
fw = new FileWriter(path);
} catch (IOException e) {
e.printStackTrace();
}
marshaller.marshal(obj, fw);
} catch (JAXBException e) {
e.printStackTrace();
}
}
@SuppressWarnings("unchecked")
/**
* 将String类型的xml转换成对象
*/
public static Object convertXmlStrToObject(Class clazz, String xmlStr) {
Object xmlObject = null;
try {
JAXBContext context = JAXBContext.newInstance(clazz);
// 进行将Xml转成对象的核心接口
Unmarshaller unmarshaller = context.createUnmarshaller();
StringReader sr = new StringReader(xmlStr);
xmlObject = unmarshaller.unmarshal(sr);
} catch (JAXBException e) {
e.printStackTrace();
}
return xmlObject;
}
@SuppressWarnings("unchecked")
/**
* 将file类型的xml转换成对象
*/
public static Object convertXmlFileToObject(Class clazz, String xmlPath) {
Object xmlObject = null;
try {
JAXBContext context = JAXBContext.newInstance(clazz);
Unmarshaller unmarshaller = context.createUnmarshaller();
FileReader fr = null;
try {
fr = new FileReader(xmlPath);
} catch (FileNotFoundException e) {
e.printStackTrace();
}
xmlObject = unmarshaller.unmarshal(fr);
} catch (JAXBException e) {
e.printStackTrace();
}
return xmlObject;
}
}