结合使用JAXB和Character

问题描述

我有一个@XMLElement字符类型，但是当它被编组时，它似乎被放入二进制字符串中，例如...

I have an @XMLElement that is of type Character but when it get marshalled it appears to get put into a binary string so for example...

'n' becomes 110
'e' becomes 101

将它们转换为字符串的简短方式是否可以输出文本char而不是表示形式?

Short of converting them to Strings is there a way I can output the text char instead of the representation?

推荐答案

您可以编写XmlAdapter. XmlAdapter允许您将一种对象类型转换为另一种对象，以进行编组/解组.

You could write an XmlAdapter. An XmlAdapter allows you to convert one type of object to another for the purposes of marshalling/unmarshalling.

XmlAdapter(CharacterAdapter)

import javax.xml.bind.annotation.adapters.XmlAdapter;

public class CharacterAdapter extends XmlAdapter<String, Character> {

    @Override
    public Character unmarshal(String v) throws Exception {
        return v.charAt(0);
    }

    @Override
    public String marshal(Character v) throws Exception {
        return new String(new char[] {v});
    }

}

Java模型

使用@XmlJavaTypeAdapter注释指定XmlAdapter:

import javax.xml.bind.annotation.*;
import javax.xml.bind.annotation.adapters.XmlJavaTypeAdapter;

@XmlRootElement
public class Foo {

    private Character bar;

    @XmlJavaTypeAdapter(CharacterAdapter.class)
    public Character getBar() {
        return bar;
    }

    public void setBar(Character bar) {
        this.bar = bar;
    }

}

更多信息

• http://blog.bdoughan.com/2010/07/xmladapter-jaxbs-secret-weapon.html
• http://blog.bdoughan.com/2012/02/jaxb-and-package-level-xmladapters.html

• http://blog.bdoughan.com/2010/07/xmladapter-jaxbs-secret-weapon.html
• http://blog.bdoughan.com/2012/02/jaxb-and-package-level-xmladapters.html

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