java与xml转换 -- XStreamAlias

@XStreamAlias

1.特点

　　简化的API;
　　无映射文件;
　　高性能,低内存占用;
　　整洁的XML;
　　不需要修改对象;支持内部私有字段,不需要setter/getter方法
　　提供序列化接口;
　　自定义转换类型策略;

2.使用场景

　　Transport转换
　　Persistence 持久化对象
　　Configuration 配置
　　Unit Tests 单元测试
　　Interface服务之间XML消息的交互

3.model

实体类

import com.thoughtworks.xstream.annotations.XStreamAlias;/*** @author ceshi* @Title: Student* @ProjectName ceshi* @Description: TODO* @date 2018/6/2817:29*/
@XStreamAlias("Student_Message")
public class Student {private String id;private String name;private String age;private String achievement;public  Student(String id,String name,String age,String achievement){this.id = id;this.name = name;this.age = age;this.achievement = achievement;}public String getId() {return id;}public void setId(String id) {this.id = id;}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 String getAchievement() {return achievement;}public void setAchievement(String achievement) {this.achievement = achievement;}@Overridepublic String toString() {return "Student{" +"id='" + id + '\'' +", name='" + name + '\'' +", age='" + age + '\'' +", achievement='" + achievement + '\'' +'}';}
}

工具类

import com.thoughtworks.xstream.XStream;
import com.thoughtworks.xstream.io.xml.DomDriver;/*** @author ceshi* @Title: XStreamUtils* @ProjectName ceshi* @Description: TODO* @date 2018/6/2817:38*/
public class XStreamUtils {/*** 将Object转换为xml* @param obj 转换的bean* @return bean转换为xml*/public static String objectToXml(Object obj) {XStream xStream = new XStream();//xstream使用注解转换
        xStream.processAnnotations(obj.getClass());return xStream.toXML(obj);}/*** 将xml转换为T* @param <T> 泛型* @param xml 要转换为T的xml* @param cls T对应的Class* @return xml转换为T*/public static <T> T xmlToObject(String xml, Class<T> cls){XStream xstream = new XStream(new DomDriver());//xstream使用注解转换
        xstream.processAnnotations(cls);return (T) xstream.fromXML(xml);}
}

测试类

import org.junit.Test;/*** @author ceshi* @Title: JunitXStream* @ProjectName ceshi* @Description: TODO* @date 2018/6/2817:29*/
public class JunitXStream {@Testpublic void test(){Student s = new Student("1","张三","18","90");String xml = XStreamUtils.objectToXml(s);xml = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"+xml;xml = xml.replaceAll("__","_");System.out.println(xml);Student ss = XStreamUtils.xmlToObject(xml,Student.class);System.out.println(ss);}
}

结果：

pom:需要使用到 xstream-1.4.8.jar

<dependency><groupId>com.thoughtworks.xstream</groupId><artifactId>xstream</artifactId><version>1.4.8</version>
</dependency>

注意事项：

　　1.XStream有一些小bug，在定义别名中的下划线“_”转换为xml后会变成“__”这个符号，下划线问题可以用下面这个解决

　　　　XStream xStream = new XStream(new XppDriver(new XmlFriendlyNameCoder("_-", "_")));

　　　　也可以像测试类中用：replaceAll("__","_"); 替换掉

posted on 2018-06-28 18:00 【cosmo】阅读(...) 评论(...) 编辑收藏

转载于:https://www.cnblogs.com/qinxu/p/9240038.html