在代码中使用绑定类 - JIBX

Question

我成功地绑定了通过XSD生成的文件，我在我的目录中获得了以下文件

C:\jibx\tutorial\example25>dir
Volume in drive C is WINDOWS
Volume Serial Number is 1C8F-663E

Directory of C:\jibx\tutorial\example25

05/06/2012  07:12 PM    <DIR>          .
05/06/2012  07:12 PM    <DIR>          ..
05/06/2012  07:12 PM             3,313 Address.class
05/06/2012  07:08 PM             3,447 Address.java
05/06/2012  07:10 PM             2,912 binding.xml
05/06/2012  07:12 PM             2,516 Customer.class
05/06/2012  07:08 PM             1,763 Customer.java
05/06/2012  07:12 PM             2,582 Item.class
05/06/2012  07:08 PM             1,878 Item.java
05/06/2012  07:12 PM             2,529 JiBX_bindingFactory.class
05/06/2012  07:12 PM             2,384 JiBX_bindingMungeAdapter.class
05/06/2012  07:12 PM             2,490 JiBX_bindingOrder_access.class
05/06/2012  07:12 PM             7,539 Order.class
05/06/2012  07:09 PM             4,869 Order.java
05/06/2012  07:11 PM             1,034 Shipping.class
05/06/2012  07:09 PM               879 Shipping.java
05/06/2012  12:22 AM             5,137 starter.xsd
          15 File(s)         45,272 bytes
           2 Dir(s)  160,023,375,872 bytes free

现在我将这些文件复制到eclipse中新创建的JAVA项目中，在该项目中创建了一个名为example25的包并将那些文件粘贴到那里我然后使用以下代码并在调试模式下运行它

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.util.Iterator;

import org.jibx.runtime.BindingDirectory;
import org.jibx.runtime.IBindingFactory;
import org.jibx.runtime.IMarshallingContext;
import org.jibx.runtime.IUnmarshallingContext;
import org.jibx.runtime.JiBXException;
import example25.*;


public class Test
{

public static void main(String[] args)
{

        try
        {

            // unmarshal customer information from file
            IBindingFactory bfact = BindingDirectory.getFactory(Order.class);
            IUnmarshallingContext uctx = bfact.createUnmarshallingContext();
            FileInputStream in = new FileInputStream("D:\\Java Libraries\\jibx\\dwcode2\\starter.xml");
            Order order = (Order)uctx.unmarshalDocument(in, null);

            // compute the total amount of the order
            float total = 0.0f;
            for (Iterator<Item> iter = order.getItemList().iterator(); iter.hasNext();)
            {
                Item item = iter.next();
                total += item.getPrice() * item.getQuantity();
            }
            order.setTotal(new Float(total));

            // marshal object back out to file (with nice indentation, as UTF-8)
            IMarshallingContext mctx = bfact.createMarshallingContext();
            mctx.setIndent(2);
            FileOutputStream out = new FileOutputStream("c:\\out.xml");
            mctx.setOutput(out, null);
            mctx.marshalDocument(order);
            System.out.println("Processed order with " +  order.getItemList().size() + " items and total value " + total);

        }
        catch (FileNotFoundException e)
        {
            e.printStackTrace();
            System.exit(1);
        } catch (JiBXException e)
        {
            e.printStackTrace();
            System.exit(1);
        }
    }

}//end main

执行第一个语句后，我收到以下错误

Unable to access binding information for class example25.Order
Make sure the binding has been compiled
java.lang.NoSuchFieldException: JiBX_bindingList
at java.lang.Class.getDeclaredField(Unknown Source)
at org.jibx.runtime.BindingDirectory.getBindingList(BindingDirectory.java:68)
at org.jibx.runtime.BindingDirectory.getFactory(BindingDirectory.java:211)
at Test.main(Test.java:24)

Answer 1

拉杰什，

您在该目录中显示的文件意味着您已正确完成所有操作！

你犯的错误是使用eclipse，因为eclipse会自动再次编译源代码文件（没有你在绑定步骤中添加的绑定信息）

尝试使用您在第一步中生成的类文件运行Test.class文件。

你的java命令应该是这样的：

java -cp C:\directorywithtestclass;C:\jibx\tutorial Test

唐

Answer 2

由于JiBX Binding编译器使用binding.xml修改生成的类文件并放置绑定信息，因此我们需要使用Binding编译器从生成的.java文件和binding.xml生成类文件。要使用eclipse执行此操作，我们可以使用this link中的解释。