Java 元素名已在简单框架中使用

我正在使用简单框架将xml解析为对象。 问题是xml中的元素名称相同，但路径不同

XML:

但是在反序列化过程中，它给了我一个例外：

  org.simpleframework.xml.core.PersistenceException: 
Element 'language' is already used with @org.simpleframework.xml.Element(data=false, name=language, required=true, type=void) 
on field 'name' private java.lang.String model.Product.name at line 8

如何映射名称相同但路径不同的标记

如果我序列化产品对象，它将为我提供正确的XML结构：

<prestashop xmlns="http://www.w3.org/1999/xlink">
    <products>
       <product>
          <description_short>
             <language>short</language>
          </description_short>
          <id_default_image href="path"/>
          <description>
             <language>long</language>
          </description>
          <name>
             <language>aaa</language>
          </name>
          <price>10.0</price>
          <id>1</id>
       </product>
    </products>
 </prestashop>

---

下面是一个如何映射类的示例：

（示例-）类：

@Root(name = "product")
public class Product
{
    @Path(value = "name")
    @Element(name = "language")
    private String name;

    @Path(value = "description")
    @Element(name = "language")
    private String description;

    @Path(value = "description_short")
    @Element(name = "language")
    private String desc;


    // ...

    /* For testing only */
    @Override
    public String toString()
    {
        return "Product{" + "name=" + name + ", description=" + description + ", desc=" + desc + '}';
    }
}

<product>
    <name>
        <language id="1"> name </language>
    </name>
    <description>
        <language id="1"> description </language>
    </description>
    <description_short>
        <language id="1"> desc </language>
    </description_short>
</product>

final File f = new File("test.xml"); // Input file

Serializer ser = new Persister();
Product p = ser.read(Product.class, f); // deserialize the class


System.out.println(p); // output - thats why i've implemented the 'toString()' method

Product{name= name , description= description , desc= desc }

@Root(name = "product")
public class Product
{
    @Path(value = "name")
    @Element(name = "language")
    private String name;

    @Path(value = "description")
    @Element(name = "language")
    private String description;

    @Path(value = "description_short")
    @Element(name = "language")
    private String desc;

    @Element(name = "id_default_image")
    private AttributedElement idDefaultImage;

    @Element(name = "price")
    private double price;

    @Element(name = "id")
    private int id;



    @Override
    public String toString()
    {
        return "Product{" + "name=" + name + ", description=" + description 
                + ", desc=" + desc + ", idDefaultImage=" + idDefaultImage 
                + ", price=" + price + ", id=" + id + '}';
    }



    @Root(name = "AttributedElement")
    static class AttributedElement
    {
        @Attribute(name = "href")
        private String value;


        public AttributedElement(String value)
        {
            this.value = value;
        }

        private AttributedElement()
        {
            /* Empty constructor required here */
        }


        @Override
        public String toString()
        {
            return value;
        }
    }

}

@Root(name = "prestashop")
public class Prestashop
{
    @ElementList(name = "products", empty = false, required = true)
    private ArrayList<Product> products;


    public Prestashop()
    {
        this.products = new ArrayList<>();
    }


    /* Some list methods */

    public void add(Product p)
    {
        products.add(p);
    }

    public Product get(int index)
    {
        return products.get(index);
    }

    public Product first()
    {
        return products.get(0);
    }

}

Serializer ser = new Persister();

Prestashop shop = ser.read(Prestashop.class, f);
System.out.println(shop.first());

<prestashop xmlns="http://www.w3.org/1999/xlink">
    <products>
       <product>
          <description_short>
             <language>short</language>
          </description_short>
          <id_default_image href="path"/>
          <description>
             <language>long</language>
          </description>
          <name>
             <language>aaa</language>
          </name>
          <price>10.0</price>
          <id>1</id>
       </product>
    </products>
 </prestashop>

Product{name=aaa, description=long, desc=short, idDefaultImage=path, price=10.0, id=1}

（我没有完整的实现，但我希望我的示例与之类似）

输入Xml:

@Root(name = "product")
public class Product
{
    @Path(value = "name")
    @Element(name = "language")
    private String name;

    @Path(value = "description")
    @Element(name = "language")
    private String description;

    @Path(value = "description_short")
    @Element(name = "language")
    private String desc;


    // ...

    /* For testing only */
    @Override
    public String toString()
    {
        return "Product{" + "name=" + name + ", description=" + description + ", desc=" + desc + '}';
    }
}

<product>
    <name>
        <language id="1"> name </language>
    </name>
    <description>
        <language id="1"> description </language>
    </description>
    <description_short>
        <language id="1"> desc </language>
    </description_short>
</product>

final File f = new File("test.xml"); // Input file

Serializer ser = new Persister();
Product p = ser.read(Product.class, f); // deserialize the class


System.out.println(p); // output - thats why i've implemented the 'toString()' method

Product{name= name , description= description , desc= desc }

@Root(name = "product")
public class Product
{
    @Path(value = "name")
    @Element(name = "language")
    private String name;

    @Path(value = "description")
    @Element(name = "language")
    private String description;

    @Path(value = "description_short")
    @Element(name = "language")
    private String desc;

    @Element(name = "id_default_image")
    private AttributedElement idDefaultImage;

    @Element(name = "price")
    private double price;

    @Element(name = "id")
    private int id;



    @Override
    public String toString()
    {
        return "Product{" + "name=" + name + ", description=" + description 
                + ", desc=" + desc + ", idDefaultImage=" + idDefaultImage 
                + ", price=" + price + ", id=" + id + '}';
    }



    @Root(name = "AttributedElement")
    static class AttributedElement
    {
        @Attribute(name = "href")
        private String value;


        public AttributedElement(String value)
        {
            this.value = value;
        }

        private AttributedElement()
        {
            /* Empty constructor required here */
        }


        @Override
        public String toString()
        {
            return value;
        }
    }

}

@Root(name = "prestashop")
public class Prestashop
{
    @ElementList(name = "products", empty = false, required = true)
    private ArrayList<Product> products;


    public Prestashop()
    {
        this.products = new ArrayList<>();
    }


    /* Some list methods */

    public void add(Product p)
    {
        products.add(p);
    }

    public Product get(int index)
    {
        return products.get(index);
    }

    public Product first()
    {
        return products.get(0);
    }

}

Serializer ser = new Persister();

Prestashop shop = ser.read(Prestashop.class, f);
System.out.println(shop.first());

<prestashop xmlns="http://www.w3.org/1999/xlink">
    <products>
       <product>
          <description_short>
             <language>short</language>
          </description_short>
          <id_default_image href="path"/>
          <description>
             <language>long</language>
          </description>
          <name>
             <language>aaa</language>
          </name>
          <price>10.0</price>
          <id>1</id>
       </product>
    </products>
 </prestashop>

Product{name=aaa, description=long, desc=short, idDefaultImage=path, price=10.0, id=1}

输出：

@Root(name = "product")
public class Product
{
    @Path(value = "name")
    @Element(name = "language")
    private String name;

    @Path(value = "description")
    @Element(name = "language")
    private String description;

    @Path(value = "description_short")
    @Element(name = "language")
    private String desc;


    // ...

    /* For testing only */
    @Override
    public String toString()
    {
        return "Product{" + "name=" + name + ", description=" + description + ", desc=" + desc + '}';
    }
}

<product>
    <name>
        <language id="1"> name </language>
    </name>
    <description>
        <language id="1"> description </language>
    </description>
    <description_short>
        <language id="1"> desc </language>
    </description_short>
</product>

final File f = new File("test.xml"); // Input file

Serializer ser = new Persister();
Product p = ser.read(Product.class, f); // deserialize the class


System.out.println(p); // output - thats why i've implemented the 'toString()' method

Product{name= name , description= description , desc= desc }

@Root(name = "product")
public class Product
{
    @Path(value = "name")
    @Element(name = "language")
    private String name;

    @Path(value = "description")
    @Element(name = "language")
    private String description;

    @Path(value = "description_short")
    @Element(name = "language")
    private String desc;

    @Element(name = "id_default_image")
    private AttributedElement idDefaultImage;

    @Element(name = "price")
    private double price;

    @Element(name = "id")
    private int id;



    @Override
    public String toString()
    {
        return "Product{" + "name=" + name + ", description=" + description 
                + ", desc=" + desc + ", idDefaultImage=" + idDefaultImage 
                + ", price=" + price + ", id=" + id + '}';
    }



    @Root(name = "AttributedElement")
    static class AttributedElement
    {
        @Attribute(name = "href")
        private String value;


        public AttributedElement(String value)
        {
            this.value = value;
        }

        private AttributedElement()
        {
            /* Empty constructor required here */
        }


        @Override
        public String toString()
        {
            return value;
        }
    }

}

@Root(name = "prestashop")
public class Prestashop
{
    @ElementList(name = "products", empty = false, required = true)
    private ArrayList<Product> products;


    public Prestashop()
    {
        this.products = new ArrayList<>();
    }


    /* Some list methods */

    public void add(Product p)
    {
        products.add(p);
    }

    public Product get(int index)
    {
        return products.get(index);
    }

    public Product first()
    {
        return products.get(0);
    }

}

Serializer ser = new Persister();

Prestashop shop = ser.read(Prestashop.class, f);
System.out.println(shop.first());

<prestashop xmlns="http://www.w3.org/1999/xlink">
    <products>
       <product>
          <description_short>
             <language>short</language>
          </description_short>
          <id_default_image href="path"/>
          <description>
             <language>long</language>
          </description>
          <name>
             <language>aaa</language>
          </name>
          <price>10.0</price>
          <id>1</id>
       </product>
    </products>
 </prestashop>

Product{name=aaa, description=long, desc=short, idDefaultImage=path, price=10.0, id=1}

（空白是由xml引起的）

看起来您想要序列化/反序列化一个列表，因此

products

应该是一个列表（可以内联），而

product

是上面的类

---

---

编辑：

产品

类别：

@Root(name = "product")
public class Product
{
    @Path(value = "name")
    @Element(name = "language")
    private String name;

    @Path(value = "description")
    @Element(name = "language")
    private String description;

    @Path(value = "description_short")
    @Element(name = "language")
    private String desc;


    // ...

    /* For testing only */
    @Override
    public String toString()
    {
        return "Product{" + "name=" + name + ", description=" + description + ", desc=" + desc + '}';
    }
}

<product>
    <name>
        <language id="1"> name </language>
    </name>
    <description>
        <language id="1"> description </language>
    </description>
    <description_short>
        <language id="1"> desc </language>
    </description_short>
</product>

final File f = new File("test.xml"); // Input file

Serializer ser = new Persister();
Product p = ser.read(Product.class, f); // deserialize the class


System.out.println(p); // output - thats why i've implemented the 'toString()' method

Product{name= name , description= description , desc= desc }

@Root(name = "product")
public class Product
{
    @Path(value = "name")
    @Element(name = "language")
    private String name;

    @Path(value = "description")
    @Element(name = "language")
    private String description;

    @Path(value = "description_short")
    @Element(name = "language")
    private String desc;

    @Element(name = "id_default_image")
    private AttributedElement idDefaultImage;

    @Element(name = "price")
    private double price;

    @Element(name = "id")
    private int id;



    @Override
    public String toString()
    {
        return "Product{" + "name=" + name + ", description=" + description 
                + ", desc=" + desc + ", idDefaultImage=" + idDefaultImage 
                + ", price=" + price + ", id=" + id + '}';
    }



    @Root(name = "AttributedElement")
    static class AttributedElement
    {
        @Attribute(name = "href")
        private String value;


        public AttributedElement(String value)
        {
            this.value = value;
        }

        private AttributedElement()
        {
            /* Empty constructor required here */
        }


        @Override
        public String toString()
        {
            return value;
        }
    }

}

@Root(name = "prestashop")
public class Prestashop
{
    @ElementList(name = "products", empty = false, required = true)
    private ArrayList<Product> products;


    public Prestashop()
    {
        this.products = new ArrayList<>();
    }


    /* Some list methods */

    public void add(Product p)
    {
        products.add(p);
    }

    public Product get(int index)
    {
        return products.get(index);
    }

    public Product first()
    {
        return products.get(0);
    }

}

Serializer ser = new Persister();

Prestashop shop = ser.read(Prestashop.class, f);
System.out.println(shop.first());

<prestashop xmlns="http://www.w3.org/1999/xlink">
    <products>
       <product>
          <description_short>
             <language>short</language>
          </description_short>
          <id_default_image href="path"/>
          <description>
             <language>long</language>
          </description>
          <name>
             <language>aaa</language>
          </name>
          <price>10.0</price>
          <id>1</id>
       </product>
    </products>
 </prestashop>

Product{name=aaa, description=long, desc=short, idDefaultImage=path, price=10.0, id=1}

注意：我使用该内部类作为帮助器，为image元素获取适当的xml结构

现在，接下来有一个类围绕着

产品

。hoewever，我把它作为一个映射来实现，如果只有一个产品，你可以使用一个简单的类来代替列表

Prestashop

class:

@Root(name = "product")
public class Product
{
    @Path(value = "name")
    @Element(name = "language")
    private String name;

    @Path(value = "description")
    @Element(name = "language")
    private String description;

    @Path(value = "description_short")
    @Element(name = "language")
    private String desc;


    // ...

    /* For testing only */
    @Override
    public String toString()
    {
        return "Product{" + "name=" + name + ", description=" + description + ", desc=" + desc + '}';
    }
}

<product>
    <name>
        <language id="1"> name </language>
    </name>
    <description>
        <language id="1"> description </language>
    </description>
    <description_short>
        <language id="1"> desc </language>
    </description_short>
</product>

final File f = new File("test.xml"); // Input file

Serializer ser = new Persister();
Product p = ser.read(Product.class, f); // deserialize the class


System.out.println(p); // output - thats why i've implemented the 'toString()' method

Product{name= name , description= description , desc= desc }

@Root(name = "product")
public class Product
{
    @Path(value = "name")
    @Element(name = "language")
    private String name;

    @Path(value = "description")
    @Element(name = "language")
    private String description;

    @Path(value = "description_short")
    @Element(name = "language")
    private String desc;

    @Element(name = "id_default_image")
    private AttributedElement idDefaultImage;

    @Element(name = "price")
    private double price;

    @Element(name = "id")
    private int id;



    @Override
    public String toString()
    {
        return "Product{" + "name=" + name + ", description=" + description 
                + ", desc=" + desc + ", idDefaultImage=" + idDefaultImage 
                + ", price=" + price + ", id=" + id + '}';
    }



    @Root(name = "AttributedElement")
    static class AttributedElement
    {
        @Attribute(name = "href")
        private String value;


        public AttributedElement(String value)
        {
            this.value = value;
        }

        private AttributedElement()
        {
            /* Empty constructor required here */
        }


        @Override
        public String toString()
        {
            return value;
        }
    }

}

@Root(name = "prestashop")
public class Prestashop
{
    @ElementList(name = "products", empty = false, required = true)
    private ArrayList<Product> products;


    public Prestashop()
    {
        this.products = new ArrayList<>();
    }


    /* Some list methods */

    public void add(Product p)
    {
        products.add(p);
    }

    public Product get(int index)
    {
        return products.get(index);
    }

    public Product first()
    {
        return products.get(0);
    }

}

Serializer ser = new Persister();

Prestashop shop = ser.read(Prestashop.class, f);
System.out.println(shop.first());

<prestashop xmlns="http://www.w3.org/1999/xlink">
    <products>
       <product>
          <description_short>
             <language>short</language>
          </description_short>
          <id_default_image href="path"/>
          <description>
             <language>long</language>
          </description>
          <name>
             <language>aaa</language>
          </name>
          <price>10.0</price>
          <id>1</id>
       </product>
    </products>
 </prestashop>

Product{name=aaa, description=long, desc=short, idDefaultImage=path, price=10.0, id=1}

输入Xml:

@Root(name = "product")
public class Product
{
    @Path(value = "name")
    @Element(name = "language")
    private String name;

    @Path(value = "description")
    @Element(name = "language")
    private String description;

    @Path(value = "description_short")
    @Element(name = "language")
    private String desc;


    // ...

    /* For testing only */
    @Override
    public String toString()
    {
        return "Product{" + "name=" + name + ", description=" + description + ", desc=" + desc + '}';
    }
}

<product>
    <name>
        <language id="1"> name </language>
    </name>
    <description>
        <language id="1"> description </language>
    </description>
    <description_short>
        <language id="1"> desc </language>
    </description_short>
</product>

final File f = new File("test.xml"); // Input file

Serializer ser = new Persister();
Product p = ser.read(Product.class, f); // deserialize the class


System.out.println(p); // output - thats why i've implemented the 'toString()' method

Product{name= name , description= description , desc= desc }

@Root(name = "product")
public class Product
{
    @Path(value = "name")
    @Element(name = "language")
    private String name;

    @Path(value = "description")
    @Element(name = "language")
    private String description;

    @Path(value = "description_short")
    @Element(name = "language")
    private String desc;

    @Element(name = "id_default_image")
    private AttributedElement idDefaultImage;

    @Element(name = "price")
    private double price;

    @Element(name = "id")
    private int id;



    @Override
    public String toString()
    {
        return "Product{" + "name=" + name + ", description=" + description 
                + ", desc=" + desc + ", idDefaultImage=" + idDefaultImage 
                + ", price=" + price + ", id=" + id + '}';
    }



    @Root(name = "AttributedElement")
    static class AttributedElement
    {
        @Attribute(name = "href")
        private String value;


        public AttributedElement(String value)
        {
            this.value = value;
        }

        private AttributedElement()
        {
            /* Empty constructor required here */
        }


        @Override
        public String toString()
        {
            return value;
        }
    }

}

@Root(name = "prestashop")
public class Prestashop
{
    @ElementList(name = "products", empty = false, required = true)
    private ArrayList<Product> products;


    public Prestashop()
    {
        this.products = new ArrayList<>();
    }


    /* Some list methods */

    public void add(Product p)
    {
        products.add(p);
    }

    public Product get(int index)
    {
        return products.get(index);
    }

    public Product first()
    {
        return products.get(0);
    }

}

Serializer ser = new Persister();

Prestashop shop = ser.read(Prestashop.class, f);
System.out.println(shop.first());

<prestashop xmlns="http://www.w3.org/1999/xlink">
    <products>
       <product>
          <description_short>
             <language>short</language>
          </description_short>
          <id_default_image href="path"/>
          <description>
             <language>long</language>
          </description>
          <name>
             <language>aaa</language>
          </name>
          <price>10.0</price>
          <id>1</id>
       </product>
    </products>
 </prestashop>

Product{name=aaa, description=long, desc=short, idDefaultImage=path, price=10.0, id=1}

---

您提供的XML与注释完全不匹配，请提供完整的XML和类定义以获得合理的答案。现在可能更好？谢谢您的答案，但它不起作用。。。它不断地给出相同的错误。只有在正确构建xml结构的情况下，才会在阅读中给出错误（请参阅Edited post）。我找不到办法让它工作，有办法吗？我明白了；请看我的第二次编辑，并告诉我你的结果：-）@ollo想看看这个吗？