java 在代码中使用绑定类 - JIBX
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Using binded classes in your code - JIBX
提问by Rajeshwar
I managed to bind the files generated through an XSD successfully and i got the following files in my dir
我设法成功绑定了通过 XSD 生成的文件，并且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
Now i copied these files into a newly created JAVA project in eclipse , created a package called example25 in that project and pasted those files there I then used the following code and ran it in the debug mode
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 的包并将这些文件粘贴到那里，然后我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
I get the following error after the execution of the first statement
执行第一条语句后出现以下错误
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)
回答by Don Corley
Rajesh,
拉杰什，
The files that you show in that directory mean you did everything correctly!
您在该目录中显示的文件意味着您所做的一切都是正确的！
The mistake you made was to use eclipse, since eclipse automatically compiles the source code files again (without the binding information you added in the binding step)
你犯的错误是使用eclipse，因为eclipse会自动重新编译源代码文件（没有你在绑定步骤中添加的绑定信息）
Try running the Test.class file with the class files you generated in the first step.
尝试使用您在第一步中生成的类文件运行 Test.class 文件。
Your java command should be something like this:
你的 java 命令应该是这样的：
java -cp C:\directorywithtestclass;C:\jibx\tutorial Test
Don
大学教师
回答by Divs
Since JiBX Binding compiler modifies generated class files and puts binding information using the binding.xml, so we need to use Binding compilerto generate the class files from the generated .java files and binding.xml. To use eclipse to do this we can use as explained in this link.
由于JiBX Binding 编译器修改生成的类文件并使用binding.xml 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 来做到这一点，我们可以按照此链接中的说明使用。
