使用JAXBContext轻松实现Java和xml的互相转换方式
作者：它山之石,可以攻玉
这篇文章主要介绍了依靠JAXBContext轻松实现Java和xml的互相转换方式，具有很好的参考价值，希望对大家有所帮助。如有错误或未考虑完全的地方，望不吝赐教
JAXBContext实现Java和xml的互相转换
类文件注解：@XmlRootElement不可缺少
<span style="font-size:14px;">@XmlRootElement
public class Man {
private String name;
private int age;
public Student() {
super();
}
public Student(String name, int age) {
super();
this.name = name;
this.age = age;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
} </span>
Java 转换 Xml：
@Test
public void testJava2Xml(){
try {
JAXBContext jc = JAXBContext.newInstance(Man.class);
Marshaller ms = jc.createMarshaller();
Man man = new Man("man",100);
ms.marshal(man, System.out);
} catch (JAXBException e) {
e.printStackTrace();
}
}
Xml 转换 Java：
@Test
public void testXml2Java() throws JAXBException{
String xml = "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"yes\"?><Man><age>100</age><name>man</name></Man>";
JAXBContext jc = JAXBContext.newInstance(Man.class);
Unmarshaller unmar = jc.createUnmarshaller();
Man man = (Man) unmar.unmarshal(new StringReader(xml));
System.out.println(man.getName());
}
JAXBContext 解析 xml
前提：
package com.sgcc.load.vo;
import java.util.ArrayList;
import java.util.List;
import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;
@XmlRootElement(name = "gldxresult")
@XmlAccessorType(XmlAccessType.FIELD)
public class XmlAnalysis { // 泛化, 聚合
@XmlElement(name = "success")
private String success;
@XmlElement(name = "totalnum")
private String totalnum;
@XmlElement(name = "accounts")
List<Accounts> accounts = new ArrayList<>();
public List<Accounts> getAccounts() {
return accounts;
}
public void setAccounts(List<Accounts> accounts) {
this.accounts = accounts;
}
public String getSuccess() {
return success;
}
public void setSuccess(String success) {
this.success = success;
}
public String getTotalnum() {
return totalnum;
}
public void setTotalnum(String totalnum) {
this.totalnum = totalnum;
}
}
package com.sgcc.load.vo;
import java.util.ArrayList;
import java.util.List;
import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlElement;
@SuppressWarnings("serial")
@XmlAccessorType(XmlAccessType.FIELD)
public class Accounts extends ArrayList<Account>{
@XmlElement(name = "account")
public List<Account> getAccount() {
return this;
}
}
package com.sgcc.load.vo;
import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlElement;
@XmlAccessorType(XmlAccessType.FIELD)
public class Account {
@XmlElement(name = "seqid")
private String seqid;
@XmlElement(name = "dxid")
private String dxid;
@XmlElement(name = "compid")
private String compid;
@XmlElement(name = "rspcode")
private String rspcode;
@XmlElement(name = "code")
private String code;
@XmlElement(name = "name")
private String name;
public String getSeqid() {
return seqid;
}
public void setSeqid(String seqid) {
this.seqid = seqid;
}
public String getDxid() {
return dxid;
}
public void setDxid(String dxid) {
this.dxid = dxid;
}
public String getCompid() {
return compid;
}
public void setCompid(String compid) {
this.compid = compid;
}
public String getRspcode() {
return rspcode;
}
public void setRspcode(String rspcode) {
this.rspcode = rspcode;
}
public String getCode() {
return code;
}
public void setCode(String code) {
this.code = code;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
测试：
package com.sgcc.load.test;
import java.io.StringReader;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Unmarshaller;
import com.sgcc.load.vo.Accounts;
import com.sgcc.load.vo.XmlAnalysis;
import groovyjarjarcommonscli.ParseException;
public class Test {
private static XmlAnalysis transToVOs(String webserviceMsg) throws JAXBException, ParseException {
final StringReader reader = new StringReader(webserviceMsg);
JAXBContext ctx=JAXBContext.newInstance(new XmlAnalysis().getClass());
Unmarshaller um=ctx.createUnmarshaller();
XmlAnalysis ds=(XmlAnalysis)um.unmarshal(reader);
return ds;
}
public static void main(String[] args) {
String xmlMsg = "<?xml version=\"1.0\" encoding=\"GBK\"?> \n<gldxresult><success>0</success><totalnum>1</totalnum>"+
"<accounts><yzy>hahaha</yzy><account><seqid></seqid><dxid>1136005118</dxid><compid>0603</compid><rspcode>New0001</rspcode><rspmsg>值：00 没有匹配到分类</rspmsg>"+
"<code>EHBSXPZYFDC000</code><name>哈哈哈哈哈哈哈哈哈</name></account></accounts></gldxresult>";
try{
XmlAnalysis transToVOs = transToVOs(xmlMsg);
for(int index = 0;index<transToVOs.getAccounts().get(0).getAccount().size();index++){
System.out.println(transToVOs.getAccounts().get(0).getAccount().get(index).getName());
}
}catch(Exception e){
e.printStackTrace();
}
}
}
以上为个人经验，希望能给大家一个参考，也希望大家多多支持脚本之家。