简单的XML反序列化 [英] Simple XML deserialization

问题描述

我正在尝试简单XML序列化程序。我对XML-> Java的反序列化更感兴趣。这是我的代码作为单元测试：

I am trying out the Simple XML serializer. I am more interested in deserialization from XML->Java. Here is my code as a unit test:

import java.io.StringReader;
import java.io.StringWriter;

import junit.framework.TestCase;

import org.simpleframework.xml.Attribute;
import org.simpleframework.xml.Root;
import org.simpleframework.xml.Serializer;
import org.simpleframework.xml.core.Persister;

public class SimpleTest extends TestCase {
    public void testWriting() throws Exception {
        StringWriter writer = new StringWriter();
        Address address = new Address("1234 Main Street", "San Francisco", "CA");
        Serializer serializer = new Persister();

        serializer.write(address, writer);
        System.out.println("Wrote: " + writer.getBuffer());
    }

    public void testReading() throws Exception {
        String input = "<address street='1234 Main Street' city='San Francisco' state='CA'/>";
        Serializer serializer = new Persister();
        System.out.println("Read back: " + serializer.read(Address.class, new StringReader(input)));
    }
}

@Root
class Address {
    @Attribute(name="street")
    private final String street;

    @Attribute(name="city")
    private final String city;

    @Attribute(name="state")
    private final String state;

    public Address(@Attribute(name="street") String street, @Attribute(name="city") String city, @Attribute(name="state") String state) {
        super();
        this.street = street;
        this.city = city;
        this.state = state;
    }

    @Override
    public String toString() {
        return "Address [city=" + city + ", state=" + state + ", street=" + street + "]";
    }   
}

这样可行，但重复 @Attribute Address类中的注释（在字段和构造函数参数中）看起来很难看。有没有办法：

This works, but the repeated @Attribute annotations (at the field and at the constructor argument) in the Address class look ugly. Is there some way to:

• 从字段名称中简单地找出属性名称？


• 有简单的忽略序列化，以便我可以撇开字段或构造函数参数？

推荐答案

我认为你不需要所有的重复和额外的注释属性。如果名称与object属性相同，则默认使用它。

I don't think you need all that repetition and the extra annotations' attribute. If the name is the same as the object attribute, it will be used by default.

所以您可以将其声明为：

so you can just declare it as:

@Root
class Address {
    @Attribute
    private final String street;

    @Attribute
    private final String city;

    @Attribute
    private final String state;

    public Address(String street, String city, String state) {
        super();
        this.street = street;
        this.city = city;
       this.state = state;
   }

   @Override
   public String toString() {
      return "Address [city=" + city + ", state=" + state + ", street=" + street + "]";
   }   
}

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