xstream解析xml字符串和生成对象

一 目录

二 代码

1 Person.java

package com.jn.xstream.bean;import java.util.ArrayList;import java.util.HashMap;import java.util.List;import java.util.Map;import com.thoughtworks.xstream.annotations.XStreamAlias;import com.thoughtworks.xstream.annotations.XStreamImplicit;import com.thoughtworks.xstream.annotations.XStreamInclude;/** * 描述:人  * 作者:姜鹏  * 时间:20170911 * */@XStreamAlias("person")public class Person {@XStreamAlias("firstname")private String firstname;@XStreamAlias("lastname")private String lastname;@XStreamAlias("phone")private PhoneNumber phone;@XStreamAlias("fax")private PhoneNumber fax;//@XStreamImplicit()//private List<PhoneNumber> para = new ArrayList<PhoneNumber>();@XStreamImplicit()private Map<String,PhoneNumber> map = new HashMap<String,PhoneNumber>();public Person(String firstname, String lastname) {this.firstname = firstname;this.lastname = lastname;}public Person() {}public String getFirstname() {return firstname;}public void setFirstname(String firstname) {this.firstname = firstname;}public String getLastname() {return lastname;}public void setLastname(String lastname) {this.lastname = lastname;}public PhoneNumber getPhone() {return phone;}public void setPhone(PhoneNumber phone) {this.phone = phone;}public PhoneNumber getFax() {return fax;}public void setFax(PhoneNumber fax) {this.fax = fax;}public Map getMap() {return map;}public void setMap(Map map) {this.map = map;}}

2 PhoneNumber.java

package com.jn.xstream.bean;import com.thoughtworks.xstream.annotations.XStreamAlias;/** * 描述:电话号码  * 作者:姜鹏  * 时间:20170911 * */@XStreamAlias("PhoneNumber")public class PhoneNumber {@XStreamAlias("code")private int code;@XStreamAlias("number")private String number;public PhoneNumber(int code, String number) {this.code = code;this.number = number;}public PhoneNumber() {}public void setCode(int code) {this.code = code;}public void setNumber(String number) {this.number = number;}public int getCode() {return code;}public String getNumber() {return number;}}

3 XstreamUtil.java

package com.jn.xstream.util;import com.thoughtworks.xstream.XStream;/** * 描述:xtream工具类 * 作者:姜鹏 * 时间:20170911 * */public class XstreamUtil {/** * 将xml字符串转为对象 * */public static Object xmlStr2Object(String xmlString,Class clazz) throws Exception{if( clazz == null || xmlString == null || "".equals(xmlString.replace(" ", "")) ) return null;Object object = clazz.newInstance();XStream xStream = new XStream();String className = object.getClass().getName();xStream.alias(className, clazz);xStream.processAnnotations(new Class[]{clazz});xStream.setMode(XStream.NO_REFERENCES);//转为对象object = xStream.fromXML(xmlString);return object;}/** * 将对象转为xml格式字符串 * */public static String object2XmlStr(Object obj) throws Exception{if(obj==null) return null;XStream xStream = new XStream();String xml = xStream.toXML(obj);return xml;}}

4 XStreamTest.java

package com.jn.xstream.test;import java.io.File;import java.io.FileInputStream;import java.io.FileNotFoundException;import java.io.FileOutputStream;import com.jn.xstream.bean.Person;import com.jn.xstream.bean.PhoneNumber;import com.jn.xstream.util.XstreamUtil;import com.thoughtworks.xstream.XStream;/** * 描述:xstream测试  * 作者:姜鹏  * 时间:20170911 * */public class XStreamTest {public static  void test2() throws Exception{// 拼接字符串StringBuffer sb = new StringBuffer();sb.append("<person>");sb.append("  <firstname>Joe</firstname>");sb.append("  <lastname>Walnes</lastname>");sb.append("  <phone>");sb.append("    <code>123</code>");sb.append("    <number>1234-456</number>");sb.append("  </phone>");sb.append("  <fax>");sb.append("    <code>123</code>");sb.append("    <number>9999-999</number>");sb.append("  </fax>");sb.append("</person>");String xml = sb.toString();Person person = (Person) XstreamUtil.xmlStr2Object(xml, Person.class);System.out.println("person2 = "+person);}public static  void test3() throws Exception{Person joe = new Person("Joe", "Walnes");joe.setPhone(new PhoneNumber(123, "1234-456"));joe.setFax(new PhoneNumber(123, "9999-999"));PhoneNumber phoneNumber1 = new PhoneNumber(123, "1234-456");PhoneNumber phoneNumber2 = new PhoneNumber(123, "1234-456");joe.getMap().put("phoneNumber1", phoneNumber1);joe.getMap().put("phoneNumber2", phoneNumber2);String result = XstreamUtil.object2XmlStr(joe);System.out.println("result = "+result);}public static  void test1(){// 拼接字符串StringBuffer sb = new StringBuffer();sb.append("<person>");sb.append("  <firstname>Joe</firstname>");sb.append("  <lastname>Walnes</lastname>");sb.append("  <phone>");sb.append("    <code>123</code>");sb.append("    <number>1234-456</number>");sb.append("  </phone>");sb.append("  <fax>");sb.append("    <code>123</code>");sb.append("    <number>9999-999</number>");sb.append("  </fax>");sb.append("</person>");String xml = sb.toString();// 构造XStreamXStream xStream = new XStream();Person person = new Person();xStream.alias("person", Person.class);xStream.processAnnotations(new Class[]{Person.class});xStream.setMode(XStream.NO_REFERENCES);//转为对象person = (Person)xStream.fromXML(xml);System.out.println("person = "+person);}public static void main(String[] args) throws Exception {test3();//String filePath = "D:"+File.separator+"test"+File.separator+"xstream"+File.separator+"test.xml";//// Initializing XStream//XStream xStream = new XStream();//xStream.alias("person", Person.class);//xStream.alias("personnumber", PhoneNumber.class);////////// Serializing an object to XML////Person joe = new Person("Joe", "Walnes");////joe.setPhone(new PhoneNumber(123, "1234-456"));////joe.setFax(new PhoneNumber(123, "9999-999"));////FileOutputStream fileOutputStream = new FileOutputStream(new File(////filePath));////xStream.toXML(joe, fileOutputStream);////////// Deserializing an object back from XM////XStream xStream2 = new XStream();////FileInputStream fileInputStream = new FileInputStream(new File(//filePath));//Person person = (Person) xStream.fromXML(fileInputStream);//System.out.println(person.toString());}}