Java 通讯录contact

contact.java

/**
 * contact实体
 * @author Administrator
 *
 */
public class contact {
private String  id;
private String name;
private String gender;
private String email;
private int  age;
private String  phone;
private  String qq;
public void setId(String id) {
    this.id = id;
}
public void setName(String name) {
    this.name = name;
}
public void setGender(String gender) {
    this.gender = gender;
}
public void setEmail(String email) {
    this.email = email;
}
public void setAge(int age) {
    this.age = age;
}
public void setPhone(String phone) {
    this.phone = phone;
}
public void setQq(String qq) {
    this.qq = qq;
}
public String getId() {
    return id;
}
public String getName() {
    return name;
}
public String getGender() {
    return gender;
}
public String getEmail() {
    return email;
}
public int  getAge() {
    return age;
}
public String getPhone() {
    return phone;
}
public String getQq() {
    return qq;
}
@Override
public String toString() {
    return "contact [id=" + id + ", name=" + name + ", gender=" + gender
            + ", email=" + email + ", age=" + age + ", phone=" + phone
            + ", qq=" + qq + "]";
}

}

contactoperator.java

/**
 * 联系人相关操作的方法
 * @author Administrator
 *
 */
public interface contactoperator {
    
public void  addcontact(contact contact);
public void updatecontact(contact contact);
public void deletecontact(String id);
public List<contact> findall();
}

contactoperatorimpl.java

public class contactoperatorimpl implements contactoperator {

//    public void  addcontact(contact contact);
//    public void updatecontact();
//    public void deletecontact();
//    public List<contact> findall();
    
    
    public void addcontact(contact contact){
        // TODO Auto-generated method stub
        try {
            File file= new  File("e:/contact1.xml");
            Document doc=null;
            Element rootelem = null;
            if(!file.exists()){
            doc=DocumentHelper.createDocument();
                rootelem=doc.addElement("contactlist");
                
            }else{
                doc= new SAXReader().read(file);
                rootelem=doc.getRootElement();
            }
            Element contactElem = rootelem.addElement("contact");
            contactElem.addAttribute("id", contact.getId());
            contactElem.addElement("name").setText(contact.getName());
            contactElem.addElement("gender").setText(contact.getGender());
            contactElem.addElement("age").setText(contact.getAge()+"");
            contactElem.addElement("phone").setText(contact.getPhone());
            contactElem.addElement("email").setText(contact.getEmail());
            contactElem.addElement("qq").setText(contact.getQq());
            
            xmlunit.write2xml(doc);

        
        } catch (DocumentException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        
    }

    public void updatecontact(contact  contact) {
        // TODO Auto-generated method stub

    Document  doc=xmlunit.getDocument();
       Element   contactelem=(Element)   doc.selectSingleNode("//contact[@id='"+contact.getId()+"']");
       contactelem.element("name").setText(contact.getName());
       contactelem.element("gender").setText(contact.getGender());
       contactelem.element("age").setText(contact.getAge());
       contactelem.element("phone").setText(contact.getPhone());
       contactelem.element("email").setText(contact.getEmail());
       contactelem.element("qq").setText(contact.getQq());
       
       xmlunit.write2xml(doc);


    }

    public void deletecontact(String id ) {
        // TODO Auto-generated method stub
        Document  doc=xmlunit.getDocument();
           Element   contactelem=(Element)   doc.selectSingleNode("//contact[@id='"+id+"']");
           contactelem.detach();
           xmlunit.write2xml(doc);
           
    }

    public List<contact> findall() {
        // TODO Auto-generated method stub
Document doc = xmlunit.getDocument();
        
        //2.创建List对象
        List<contact > list = new ArrayList<contact>();
        //3.读取contact标签
        List<Element> conList = (List<Element>)doc.selectNodes("//contact");
        for(Element e:conList){
            //创建COntact对象
            contact c = new contact();
            c.setId(e.attributeValue("id"));
            c.setName(e.elementText("name"));
            c.setGender(e.elementText("gender"));
            c.setAge(Integer.parseInt(e.elementText("age")));
            c.setPhone(e.elementText("phone"));
            c.setEmail(e.elementText("email"));
            c.setQq(e.elementText("qq"));
            //把Contact放入list中
            list.add(c);
        }
        return list;
    }

}

xmlunit.java   公共工具类    抽取常用方法

public class xmlunit {
    
    public static Document getDocument(){
        try {
            Document doc = new SAXReader().read(new File("e:/contact1.xml"));
            return doc;
        } catch (DocumentException e) {
            e.printStackTrace();
            throw new RuntimeException(e);
        }
    }

public  static void write2xml(Document doc){
    try {
        FileOutputStream out=  new FileOutputStream("e:/contact1.xml");
        OutputFormat format=OutputFormat.createPrettyPrint();
        format.setEncoding("utf-8");
        XMLWriter writer= new XMLWriter(out,format);
        writer.write(doc);
        writer.close();
    } catch (FileNotFoundException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (UnsupportedEncodingException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
}
}

测试代码：

/**
 * 联系人操作实现类的测试类
 * @author APPle
 *
 */
public class TestContactOperatorImpl {
    ContactOperator operator = null;
    
    /**
     * 初始化对象实例
     */
    @Before
    public void init(){
        operator = new ContactOperatorImpl();
    }
    

    @Test
    public void testAddContact(){
        Contact contact = new Contact();
        contact.setId("3");
        contact.setName("rose");
        contact.setGender("男");
        contact.setAge(20);
        contact.setPhone("134222233333");
        contact.setEmail("eric@qq.com");
        contact.setQq("33334444");
        operator.addContact(contact);
    }
    
    @Test
    public void testUpdateContact(){
        Contact contact = new Contact();
        contact.setId("3"); //修改的ID
        contact.setName("zhangsan");
        contact.setGender("女");
        contact.setAge(30);
        contact.setPhone("135222233333");
        contact.setEmail("zhangsan@qq.com");
        contact.setQq("33334444");
        operator.updateContact(contact);
    }
    
    @Test
    public void testDeleteContact(){
        operator.deleteContact("3");
    }
    
    @Test
    public void testFindAll(){
        List<Contact> list = operator.findAll();
        for (Contact contact : list) {
            System.out.println(contact);
        }
    }
}