02-12 03:31 阅读 86

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xml格式化工具有哪些（ue格式化xml快捷键）

使用的javax这个jar下的类，JAXB（Java Architecture for XML Binding) 这个java和xml的互转标准如果感兴趣可以自行百度这里就不介绍概念，直接上代码。

首先是工具类，这里比较简单，就没做生成实体文件，就是两个，一个对象转xml，一个xml转对像。

import javax.xml.bind.JAXBContext;
import javax.xml.bind.Marshaller;
import javax.xml.bind.Unmarshaller;
import java.io.StringReader;
import java.io.StringWriter;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * @desc: xml 工具类
 * @author: wangzhh
 * @date: 2019-06-13
 */
public class XmlUtils {

    /**
     * Description bean对像转换为xml字符串，
     * 对像属性如果不设置值，xml字符串没有节点，如果需要空节点，可以设置为空字符串
     * @param obj 需要转换的对像，转换的对像需要做对应的注解
     * @return java.lang.String
     * @Author wangzhh
     * @Date 2019-06-13
     **/
    public static String convertToXml(Object obj) {
        // 输出流
        StringWriter writer = new StringWriter();
        try {
            JAXBContext context = JAXBContext.newInstance(obj.getClass());
            Marshaller marshaller = context.createMarshaller();
            // 格式化xml输出的格式
            marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, Boolean.TRUE);
            //marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, Boolean.FALSE);
            // 设置编码集
            marshaller.setProperty(Marshaller.JAXB_ENCODING, "utf-8");
            // 将对象转换成输出流形式的xml
            marshaller.marshal(obj, writer);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return writer.toString();
    }

    /**
     * Description xml字符串转换为bean对像
     * @Author wangzhh
     * @Date 2019-06-13
     * @param clazz
     * @param xmlStr
     * @return java.lang.Object
     **/
    public static Object convertXmlStrToObject(Class clazz, String xmlStr) {

        Object xmlObject = null;
        try {
            JAXBContext context = JAXBContext.newInstance(clazz);
            // 进行将Xml转成对象
            Unmarshaller unmarshaller = context.createUnmarshaller();
            StringReader reader = new StringReader(xmlStr);
            xmlObject = unmarshaller.unmarshal(reader);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return xmlObject;
    }

    public static void main(String[] args) {
        TestXmlBean t = new TestXmlBean();
        t.setName("张三");
        t.setAge("");
        Map map = new HashMap();
        map.put("map","mapValue");
        t.setMsgMap(map);
        List listBean = new ArrayList();
        TestListBean t1 = new TestListBean();
        t1.setAddress("一号地址");
        TestListBean t2 = new TestListBean();
        t2.setAddress("二号地址");
        listBean.add(t1);
        listBean.add(t2);
        t.setListBean(listBean);
        System.out.println(XmlUtils.convertToXml(t));
        String xmlStr  = XmlUtils.convertToXml(t);
        xmlStr = "张三mapmapValue
一号地址
二号地址\n";
        TestXmlBean bean = (TestXmlBean) XmlUtils.convertXmlStrToObject(TestXmlBean.class,xmlStr);
        System.out.println(bean.toString());
    }
}

测试用的类，饱含集合

import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlRootElement;
import javax.xml.bind.annotation.XmlType;
import java.io.Serializable;
import java.util.List;
import java.util.Map;

/**
 * @desc: 工具类测试对像
 * @author: wangzhh
 * @date: 2019-06-13
 */
@XmlAccessorType(XmlAccessType.FIELD)
// 根节点
@XmlRootElement(name = "test")
// 需要转换的属性,顺序
@XmlType(propOrder = {"name","age","msgMap","listBean"})
public class TestXmlBean implements Serializable {

    private static final long serialVersionUID = -6854694430588003755L;

    private  String name;
    private String age;
    private Map msgMap;
    private List listBean;

    public String getName() {
        return name;
    }

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

    public String getAge() {
        return age;
    }

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

    public Map getMsgMap() {
        return msgMap;
    }

    public void setMsgMap(Map msgMap) {
        this.msgMap = msgMap;
    }

    public List getListBean() {
        return listBean;
    }

    public void setListBean(List listBean) {
        this.listBean = listBean;
    }

    @Override
    public String toString() {
        return "TestXmlBean{" +
                "name='" + name + '\'' +
                ", age='" + age + '\'' +
                ", msgMap=" + msgMap +
                ", listBean=" + listBean +
                '}';
    }
}

import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlRootElement;
import javax.xml.bind.annotation.XmlType;

/**
 * @desc:
 * @author: wangzhh
 * @date: 2019-06-13
 */
@XmlAccessorType(XmlAccessType.FIELD)
// 根节点
@XmlRootElement(name = "listBean")
// 需要转换的属性
@XmlType(propOrder = {"address"})
public class TestListBean {
    private String address;

    public String getAddress() {
        return address;
    }

    public void setAddress(String address) {
        this.address = address;
    }

    @Override
    public String toString() {
        return "TestListBean{" +
                "address='" + address + '\'' +
                '}';
    }
}

测试结果，控制台成功输出

Connected to the target VM, address: '127.0.0.1:49443', transport: 'socket'


    张三
    
    
        
            map
            mapValue
        
    
    
        
一号地址
    
    
        
二号地址
    


TestXmlBean{name='张三', age='', msgMap={map=[value: null]}, listBean=[TestListBe