Xstream 的春天

Xstream是一个简单的基于Java的序列化/反序列化库，用于将Java对象转换为其XML表示形式。它还可用于将XML字符串转换为等效的Java对象。它是对Java标准库的快速、高效的扩展。它也是高度可定制的。对于本教程，我们假设Java和环境变量已正确安装在您的本地环境中。

下载 XStream 档案

从此链接下载最新的 Xstream 存档。如果您下载了 jar，那么您必须手动或在 IDE 的帮助下设置 CLASSPATH 变量，（或）

使用 Maven：

如果您通过 maven 中央存储库将其添加到您的项目中，那么您不需要设置 CLASSPATH 变量，maven 会自动为您执行此操作。

  com.thoughtworks.xstream
  xstream
  1.4.19

设置 CLASSPATH 变量

手动：

Linux：

export CLASSPATH=$CLASSPATH:$XStream_HOME/xstream-1.4.19.jar: 

视窗：

将环境变量 CLASSPATH 设置为

%CLASSPATH%;%XStream_HOME%\xstream-1.4.19.jar;

苹果电脑：

export CLASSPATH=$CLASSPATH:$XStream_HOME/xstream-1.4.19.jar:

（或者）

在IDE的帮助下：在IntelliJ IDEA中执行以下步骤：

步骤：

右键单击项目->打开模块设置->库->单击“+” ->添加 Xstream Jar ->应用并确定

XStream 应用程序

确保您已经设置了 Spring 核心和 web jar 文件

Java

import lombok.Getter;
  
@Getter
public class Employee {
    private String firstName;
    private String lastName;
    private int salary;
    private int age;
    private String gender;
  
    public Employee(String firstName, String lastName,
                    int salary, int age, String gender)
    {
        this.firstName = firstName;
        this.lastName = lastName;
        this.salary = salary;
        this.age = age;
        this.gender = gender;
    }
}

Java

import com.thoughtworks.xstream.XStream;
import com.thoughtworks.xstream.io.xml.DomDriver;
import java.io.FileWriter;
import java.io.IOException;
import org.springframework.boot.autoconfigure.SpringBootApplication;
  
@SpringBootApplication
public class XStreamExampleApplication {
    public static void main(String[] args)
        throws IOException
    {
        // Initializing XStream with Dom driver
        XStream xStream = new XStream(new DomDriver());
  
        // Now, to make the XML outputted by XStream more
        // concise, you can create aliases for your custom
        // class names to XML element names. This is the
        // only type of mapping required to use XStream and
        // even this is optional.
        xStream.alias("employee", Employee.class);
  
        Employee e1 = new Employee("Sanyog", "Gautam", 1000,
                                   19, "Male");
  
        // Serializing a Java object into XML
        String xml
            = xStream.toXML(e1); // Converting it to XML
        System.out.println(xml);
  
        // Java Object to a file
        try (FileWriter writer = new FileWriter(
                 "/home/anurag/xstreamExample.xml")) {
            xStream.toXML(e1, writer);
        }
        catch (IOException e) {
            e.printStackTrace();
        }
    }
}

如您所见，我们得到了干净的 XML

  Sanyog
  Gautam
  100
  19
  Male

我们可以从那个 XML 反序列化我们的对象

Java

import com.thoughtworks.xstream.XStream;
import com.thoughtworks.xstream.io.xml.DomDriver;
import java.io.IOException;
import org.springframework.boot.autoconfigure.SpringBootApplication;
  
@SpringBootApplication
public class XStreamExampleApplication {
    public static void main(String[] args)
        throws IOException
    {
        // Initializing XStream with Dom driver
        XStream xStream = new XStream(new DomDriver());
  
        // We need to configure the security framework in
        // XStream, so it deserializes the object from the
        // XML
        xStream.allowTypes(new Class[] { Employee.class });
  
        // Now, to make the XML outputted by XStream more
        // concise, you can create aliases for your custom
        // class names to XML element names. This is the
        // only type of mapping required to use XStream and
        // even this is optional.
        xStream.alias("employee", Employee.class);
  
        Employee e1 = new Employee("Sanyog", "Gautam", 1000,
                                   19, "Male");
  
        // Serializing a Java object into XML
        String xml
            = xStream.toXML(e1); // Converting it to XML
  
        // Deserializing a Java object from XML
        Employee employee = (Employee)xStream.fromXML(xml);
  
        System.out.println("First name of Employee:  "
                           + employee.getFirstName());
        System.out.println("Last name of Employee:   "
                           + employee.getLastName());
        System.out.println("Employee's age:          "
                           + employee.getAge());
        System.out.println("Employee's gender:       "
                           + employee.getGender());
        System.out.println("Employee's salary:       $"
                           + employee.getSalary());
    }
}

我们取回我们的对象

来自 XML 的反序列化对象