把对象保存为xml文件

把对象保存为xml文件

public Boolean SavePersonsToXml(List<Person> pList)
    {
        
        //new 一个创建xml的序列化对象
        XmlSerializer xs = Xml.newSerializer();
        
        try {
            
            //然后用文件初始化用于创建xml文件的序列化对象(此处记得添加2用户权限)
            File file = new File(Environment.getExternalStorageDirectory(),"persons.xml");
            FileOutputStream fos = new FileOutputStream(file);
            xs.setOutput(fos, "utf-8");
            
            //开始创建标签
            xs.startDocument("utf-8", true);
            xs.startTag(null, "persons");
            
            
            for(Person person:pList){
                
                xs.startTag(null, "person");
                xs.attribute(null, "id", person.getId()+"");
            
                xs.startTag(null, "name");
                xs.text(person.getName());
                xs.endTag(null, "name");
                
                xs.startTag(null, "age");
                xs.text(person.getAge()+"");
                xs.endTag(null, "age");
                
                xs.startTag(null, "sex");
                xs.text(person.getSex());
                xs.endTag(null, "sex");
                
                xs.endTag(null, "person");
            }
            
            xs.endTag(null, "persons");
            xs.endDocument();
            
            fos.close();
            return true;
            
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
            return false;
        }
    }