Java反序列化Arrays.toString（） - 人類可讀的序列化 - 配置文件

Question

我正在構建一個配置文件，並且希望使其具有可讀性和處理簡單性。

我只需要使用基元和基元（和字符串）的數組。

下面是一個例子

ID 100; Links [99, 100, 101]; Options [qwe, asd] 
ID 100; Links [99, 100, 101]; Options [asd, zxc] 

現在，我使用Arrays.toString（）和字符串連接創建上面。

我可以使用String.split（）來分割上面的字符串，它仍然很簡單。

然後我留下了需要「反序列化」的[..，..]字符串。有沒有一種簡單而直接的方法來反轉由Arrays.toString（）創建的內容？

Answer 1

我放棄了將我的配置作爲簡單文本文件並使用完整XML的想法。

我發現了一個不錯的庫，XStream，它可以生成一些冗長而易讀的文件。

實施例輸出和碼

<Person> 
    <firstname>Joe</firstname> 
    <lastname>Walnes</lastname> 
    <phone> 
    <code>123</code> 
    <number>1234-456</number> 
    </phone> 
    <fax> 
    <code>123</code> 
    <number>9999-999</number> 
    </fax> 
</Person> 

******中國類

public class PhoneNumber { 

    private int code; 
    private String number; 

    public PhoneNumber(int code, String number) { 
     this.code = code; 
     this.number = number; 
    } 

    @Override 
    public String toString() { 
     return "PhoneNumber{" + "code=" + code + ", number=" + number + '}'; 
    } 

} 

Person類

public class Person { 

    private String firstname; 
    private String lastname; 
    private PhoneNumber phone; 
    private PhoneNumber fax; 

    public Person(String firstname, String lastname) { 
     this.firstname = firstname; 
     this.lastname = lastname; 
    } 

    public void setPhone(PhoneNumber phone) { 
     this.phone = phone; 
    } 

    public void setFax(PhoneNumber fax) { 
     this.fax = fax; 
    } 

    @Override 
    public String toString() { 
     return "Person{" + "firstname=" + firstname + ", lastname=" + lastname + ", phone=" + phone + ", fax=" + fax + '}'; 
    } 

} 

亞軍類

import com.thoughtworks.xstream.XStream; 
import com.thoughtworks.xstream.io.xml.DomDriver; 
import java.io.File; 
import java.io.FileNotFoundException; 
import java.io.PrintWriter; 
import java.io.UnsupportedEncodingException; 
import java.util.Scanner; 
import java.util.logging.Level; 
import java.util.logging.Logger; 

public class Runner { 

    private static final Logger LOG = Logger.getLogger(Runner.class.getName()); 

    public static void main(String[] args) { 
     XStream xstream = new XStream(new DomDriver()); // does not require XPP3 library 

     // shorten tag names when saved 
     xstream.alias(Person.class.getSimpleName(), Person.class); 
     xstream.alias(PhoneNumber.class.getSimpleName(), PhoneNumber.class); 

     // create object 
     Person joe = new Person("Joe", "Walnes"); 
     joe.setPhone(new PhoneNumber(123, "1234-456")); 
     joe.setFax(new PhoneNumber(123, "9999-999")); 

     // serialize 
     String xml = xstream.toXML(joe); 

     // open file 
     File configFile = new File("Config.txt"); 

     // write to file 
     try (PrintWriter writer = new PrintWriter(configFile, "UTF-8");) { 
      xml = xstream.toXML(joe); 
      writer.println(xml); 
     } catch (FileNotFoundException | UnsupportedEncodingException ex) { 
      LOG.log(Level.SEVERE, null, ex); 
     } 

     // read file 
     try (Scanner scanner = new Scanner(configFile, "UTF-8");) { 
      scanner.useDelimiter("\\A"); 
      xml = scanner.next(); 
     } catch (FileNotFoundException ex) { 
      LOG.log(Level.SEVERE, null, ex); 
     } 

     // deserialize 
     Person newJoe = (Person) xstream.fromXML(xml); 

     System.out.println("Does toString return the same String? " + joe.toString().equals(newJoe.toString())); 
    } 
}