java类 XStream xml json 转换

野性酷女 2022-07-16 02:17 249阅读 0赞

1、首先下载 xstream.jar和jettison.jar（转换为json时用到），并引入该包。

2、看如下代码吧：

import java.io.File; import java.io.IOException; import org.apache.commons.io.FileUtils; import com.thoughtworks.xstream.XStream; import com.thoughtworks.xstream.io.json.JettisonMappedXmlDriver; import com.thoughtworks.xstream.io.xml.DomDriver; public class Student \{ private String name; private String sex; /\* \* 构造函数 \*/ public Student(String name, String sex) \{ this.name = name; this.sex = sex; \} public String getName() \{ return name; \} public void setName(String name) \{ this.name = name; \} public String getSex() \{ return sex; \} public void setSex(String sex) \{ this.sex = sex; \} /\* \* 对象转换为 xml \* @return String \*/ public String toXml() \{ XStream xStream = new XStream(new DomDriver()); return xStream.toXML(this); \} /\* \* 对象转换为json \* @return String \*/ public String toJson() \{ XStream xStream = new XStream(new JettisonMappedXmlDriver()); return xStream.toXML(this); \} /\* \* xml类转换为对象 \* @param String \* @return Student \*/ public Student toXmlObject(String xml) \{ XStream xStream = new XStream(new DomDriver()); return (Student) xStream.fromXML(xml); \} /\* \* json转换为对象 \* @param String \* @return Student \*/ public Student toJsonObject(String xml) \{ XStream xStream = new XStream(new JettisonMappedXmlDriver()); return (Student) xStream.fromXML(xml); \} public static void main(String\[\] arge) throws IOException \{ Student student = new Student("张三", "男"); File file = new File("d:/student.xml"); // xml: 输出 转换为 xml FileUtils.writeStringToFile(file, student.toXml()); // xml: 输入转换为对象 String in = FileUtils.readFileToString(file); Student st = student.toXmlObject(in); // json: 输出 转换为json FileUtils.writeStringToFile(file, student.toJson()); // json: 输入转换为对象 in = FileUtils.readFileToString(file); st = student.toJsonObject(in); \} \}