c java xml传递数据 java导入xml

导入工具包

1、新建一个文件夹lib

2、导入工具包

这里有三个包，只需要导入要用到的就行，复制粘贴到lib文件夹里

粘贴后效果是这样的

3、配置工具包

选择Project Structure

点击Libraries,点击+号选择Java

选择项目所在路径，点击OK

继续OK

选择Cancle

选中后再点删除

点击+号，选择需要的工具包，点击OK

Apply一下

回到Modules,点击+号，选择Library

接下来会发现左边的工具包已经可以打开，并且右边的导包没有再报错了，说明导入成功。

1、本地文件解析

package com.java.demo1;

import org.dom4j.Document;
import org.dom4j.DocumentException;
import org.dom4j.Element;
import org.dom4j.io.SAXReader;

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.List;

public class Demo1 {
    public static void main(String[] args) throws IOException, DocumentException {
        //1、获取输入流
        FileInputStream fis = new FileInputStream("src/com/java/demo1/Demo1.xml");
        //2、创建XML读取对象
        SAXReader rs = new SAXReader();
        //3、读取并得到文档对象
        Document doc = rs.read(fis);
        //4、通过文档获取根元素
        Element root = doc.getRootElement();
        //5、开始解析元素
        String rootName = root.getName();
        System.out.println(rootName);

//        Element book = root.element("book");
//        Element name = book.element("name");
//        System.out.println(name.getText());

        List<Element> es = root.elements();
        for(int i=0; i<es.size(); i++){
            Element book = es.get(i);
            System.out.println(book.attributeValue("id"));
            System.out.println(book.elementText("name"));
            System.out.println(book.elementText("info"));
            System.out.println("-----------");
        }

        fis.close();
    }
}

2、网络url地址XML解析

import org.dom4j.Document;
import org.dom4j.DocumentException;
import org.dom4j.Element;
import org.dom4j.io.SAXReader;

import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
import java.util.List;

public class Demo2 {
    public static void main(String[] args) throws IOException, DocumentException {
        String phone ="19982794902";
        //1、获取到XML资源的输入流
        URL url = new URL("http://apis.juhe.cn/mobile/get?%20phone=" + phone + "&dtype=xml&key=9f3923e8f87f1ea50ed4ec8c39cc9253");
        URLConnection conn = url.openConnection();
        InputStream is = conn.getInputStream();
        //2、创建一个XML读取对象
        SAXReader sr = new SAXReader();
        //3、通过读取对象 读取XML数据，并返回文档对象
        Document doc = sr.read(is);
        //4、获取根节点
        Element root = doc.getRootElement();
        //5、解析内容
        String code = root.elementText("resultcode");
        if("200".equals(code)){
            Element result = root.element("result");
            String province = result.elementText("province");
            String city = result.elementText("city");
            if(province.equals(city)){
                System.out.println("手机号码归属地为：" + city);
            }else{
                System.out.println("手机号码归属地为：" + province + " " + city);
            }
        }else{
            System.out.println("请输入正确的手机号码");
        }
    }
}

3、本地XML文件生成

package com.java.demo1;

import org.dom4j.Document;
import org.dom4j.DocumentHelper;
import org.dom4j.Element;
import org.dom4j.io.XMLWriter;

import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.UnsupportedEncodingException;


public class Demo5 {
    public static void main(String[] args) throws IOException {
        //1、通过文档帮助器，创建一个文档对象
        Document doc = DocumentHelper.createDocument();
        //2、给文档添加第一个节点（根节点）
        Element books = doc.addElement("books");
        //3、通过根节点，丰富子节点
        for(int i=0; i<2; i++){
            Element book = books.addElement("book");
            Element name = book.addElement("name");
            name.setText(i+"种苹果");
            Element info = book.addElement("info");
            info.setText(i+"好吃");
            book.addAttribute("id", 100+i+"");
        }
        //4、创建文件输出流
        FileOutputStream fos = new FileOutputStream("apple.xml");
        //5、将输出流转换为XML输出流
        XMLWriter xw = new XMLWriter(fos);
        //6、写出文档
        xw.write(doc);
        //7、释放资源
        xw.close();
        System.out.println("写入成功");
    }
}

<?xml version="1.0" encoding="UTF-8"?>
<books>
    <book id="100">
        <name>0种苹果</name>
        <info>0好吃</info>
    </book>
    <book id="101">
        <name>1种苹果</name>
        <info>1好吃</info>
    </book>
</books>

4、XStream对象生成xml

package com.java.demo1;

import com.thoughtworks.xstream.XStream;

import java.util.Objects;

public class Demo6 {

    public static void main(String[] args) {
        Person p = new Person();
        p.setName("张三");
        p.setAge(18);

        //XStream使用
        //1、创建XStream对象
        XStream x = new XStream();
        //2、修改某个类型生成的根节点（可选的， 默认为包名.类名）
        x.alias("person",Person.class);
        //3、传入对象，开始生成
        String xml = x.toXML(p);
        System.out.println(xml);
    }

    static class Person {
        private String name;
        private int age;

        public String getName() {
            return name;
        }

        public void setName(String nae) {
            this.name = nae;
        }

        public int getAge() {
            return age;
        }

        public void setAge(int age) {
            this.age = age;
        }

        public Person() {
        }

        @Override
        public String toString() {
            return "Person{" +
                    "nae='" + name + '\'' +
                    ", age=" + age +
                    '}';
        }

        @Override
        public boolean equals(Object o) {
            if (this == o) return true;
            if (o == null || getClass() != o.getClass()) return false;
            Person person = (Person) o;
            return age == person.age && Objects.equals(name, person.name);
        }

        @Override
        public int hashCode() {
            return Objects.hash(name, age);
        }
    }
}

执行结果