Xml And JavaBean

一、通過Jaxb來做二者之間的轉換
1. 使用jaxb的工具，或者netbeans ide根據xml的xsd來產生JavaBean
2. 使用jaxb的API，來實現xml和JavaBean之間的切換

 

public class JaxbUtil {
    /**
     * 讀取xml文件，轉成JavaBean
     */
    public static Object unmarshal(String packagename,String path){
        try{
            JAXBContext jc = JAXBContext.newInstance(packagename);
            Unmarshaller u = jc.createUnmarshaller();
            Object Object = (Object)u.unmarshal(new File(path));
            return Object;
        }catch(Exception e){
            throw new RuntimeException(e);
        }
    }
    
    /**
     * 將JavaBean轉成Xml輸出
     */
    public static void marshaller(Object obj,String packagename,String path){
        try{
              JAXBContext jc = JAXBContext.newInstance(packagename);
              //用於輸出元素
          Marshaller marshaller = jc.createMarshaller();
          marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, Boolean.TRUE);
          FileOutputStream stream = new FileOutputStream(path);
          marshaller.marshal(obj, stream);
        }catch(Exception e){
            throw new RuntimeException(e);
        }
    }
}