java编写的简单手机通讯录

package com.telephoneBook; import java.io.FileOutputStream; import java.util.Scanner; import javax.xml.parsers.DocumentBuilder; import javax.xml.parsers.DocumentBuilderFactory; import javax.xml.transform.OutputKeys; import javax.xml.transform.Transformer; import javax.xml.transform.TransformerFactory; import javax.xml.transform.dom.DOMSource; import javax.xml.transform.stream.StreamResult; import org.w3c.dom.Document; import org.w3c.dom.Element; import org.w3c.dom.NodeList; public class TelephoneBook { static Scanner input=new Scanner(System.in); public static void main(String[] args) throws Exception { new TelephoneBook().ChoiceOrder(); } public void ChoiceOrder() throws Exception{ while(true){ System.out.println("*******************************************************************"); System.out.println("1.增加通讯录成员\n2.删除指定通讯录成员\n3.修改通讯录成员信息\n4.查找指定的通讯录成员\n5.输出通讯录成员列表\n0.退出程序"); System.out.println("*******************输出序号1/2/3/4/5****************************"); int md=input.nextInt(); if(md==1){ add(); }else if(md==2){ delete(); }else if(md==3){ modify(); }else if(md==4){ seek(); }else if(md==5){ peopleList(); }else if(md==0){ System.out.println("退出程序，感谢使用"); System.exit(1); }else{ System.out.println("输入序号错误，请重新输入！"); ChoiceOrder(); } } } /** * 增加通讯录成员-----add */ public void add() throws Exception{ //解析器工厂 DocumentBuilderFactory dbf=DocumentBuilderFactory.newInstance(); //解析器 DocumentBuilder db=dbf.newDocumentBuilder(); //DOM树 Document doc=db.parse("src/TelephoneBook.xml"); //增加phone节点 Element phoneElement=doc.createElement("phone"); System.out.print("姓名："); String name=input.next(); System.out.print("电话号码："); String PhoneNum=input.next(); if(PhoneNum!=null){ phoneElement.setAttribute("name", name); phoneElement.setAttribute("phonenumber", PhoneNum); Element phonebookElement=(Element)doc.getElementsByTagName("phonebook").item(0); phonebookElement.appendChild(phoneElement); System.out.println("添加成功！"); }else{ System.out.println("号码为空，请输入号码，重新添加成员"); add(); } /** * 保存xml文件 */ TransformerFactory transformerFactory=TransformerFactory.newInstance(); Transformer transformer=transformerFactory.newTransformer(); DOMSource domSource=new DOMSource(doc); //设置编码类型 transformer.setOutputProperty(OutputKeys.ENCODING, "gb2312"); StreamResult streamResult=new StreamResult(new FileOutputStream("src/TelephoneBook.xml")); //将DOM树转换为xml文件 transformer.transform(domSource, streamResult); } /** * 删除通讯录指定成员-----delete */ public void delete() throws Exception{ //解析器工厂 DocumentBuilderFactory dbf=DocumentBuilderFactory.newInstance(); //解析器 DocumentBuilder db=dbf.newDocumentBuilder(); //DOM树 Document doc=db.parse("src/TelephoneBook.xml"); System.out.print("想要删除的成员姓名："); String deleteName=input.next(); int flag=0; //找到要删除的节点 NodeList nodeList=doc.getElementsByTagName("phone"); for(int i=0;i<nodeList.getLength();i++){ Element phoneElement=(Element)nodeList.item(i); String name=phoneElement.getAttribute("name"); if(name.equals(deleteName)){ flag=1; phoneElement.getParentNode().removeChild(phoneElement); } } if(flag==1){ System.out.println("删除成功"); }else{ System.out.println("未找到指定要删除的姓名"); } /** * 保存xml文件 */ TransformerFactory transformerFactory=TransformerFactory.newInstance(); Transformer transformer=transformerFactory.newTransformer(); DOMSource domSource=new DOMSource(doc); //设置编码类型 transformer.setOutputProperty(OutputKeys.ENCODING, "gb2312"); StreamResult streamResult=new StreamResult(new FileOutputStream("src/TelephoneBook.xml")); //将DOM树转换为xml文件 transformer.transform(domSource, streamResult); } /** * 修改通讯录成员的信息-----modify */ public void modify() throws Exception{ //解析器工厂 DocumentBuilderFactory dbf=DocumentBuilderFactory.newInstance(); //解析器 DocumentBuilder db=dbf.newDocumentBuilder(); //DOM树 Document doc=db.parse("src/TelephoneBook.xml"); System.out.print("输入想要修改的成员姓名："); String modifyName=input.next(); System.out.print("修改后的号码："); String number=input.next(); //找到要修改的成员 NodeList phoneNodeList=doc.getElementsByTagName("phone"); for(int i=0;i<phoneNodeList.getLength();i++){ Element phoneElement=(Element)phoneNodeList.item(i); String name=phoneElement.getAttribute("name"); if(name.equals(modifyName)){ phoneElement.setAttribute("phonenumber", number); } } /** * 保存xml文件 */ TransformerFactory transformerFactory=TransformerFactory.newInstance(); Transformer transformer=transformerFactory.newTransformer(); DOMSource domSource=new DOMSource(doc); //设置编码类型 transformer.setOutputProperty(OutputKeys.ENCODING, "gb2312"); StreamResult streamResult=new StreamResult(new FileOutputStream("src/TelephoneBook.xml")); //将DOM树转换为xml文件 transformer.transform(domSource, streamResult); } /** * 查找指定的成员信息-------seek */ public void seek() throws Exception{ //解析器工厂 DocumentBuilderFactory dbf=DocumentBuilderFactory.newInstance(); //解析器 DocumentBuilder db=dbf.newDocumentBuilder(); //DOM树 Document doc=db.parse("src/TelephoneBook.xml"); System.out.print("查找的成员姓名："); String seekName=input.next(); int flag=0; NodeList phoneNodeList=doc.getElementsByTagName("phone"); System.out.println("序号"+"\t\t"+"姓名"+"\t\t"+"电话号码"); for(int i=0;i<phoneNodeList.getLength();i++){ Element phoneNodeElement=(Element) phoneNodeList.item(i); if(phoneNodeElement.getAttribute("name").equals(seekName)){ flag=1; System.out.println(i+1+"\t\t"+seekName+"\t\t"+phoneNodeElement.getAttribute("phonenumber")); } } if(flag==0){ System.out.println("查找成功"); }else{ System.out.println("查找失败"); } } /** * 输出成员列表------peopleList */ public void peopleList() throws Exception{ //解析器工厂 DocumentBuilderFactory dbf=DocumentBuilderFactory.newInstance(); //解析器 DocumentBuilder db=dbf.newDocumentBuilder(); //DOM树 Document doc=db.parse("src/TelephoneBook.xml"); NodeList phoneNodeList=doc.getElementsByTagName("phone"); System.out.println("-------------列表如下----------------"); System.out.println("序号"+"\t\t"+"姓名"+"\t\t"+"电话号码"); for(int i=0;i<phoneNodeList.getLength();i++){ Element phoneElement=(Element)phoneNodeList.item(i); System.out.println(i+1+"\t\t"+phoneElement.getAttribute("name")+"\t\t"+phoneElement.getAttribute("phonenumber")); } } }