由于网上关于Eclipse XSD的中文资料比較少，可是有的时候。我们须要使用Eclipse XSD的API去构造或者改动一个XSD文件。

那么当我们创建了org.eclipse.xsd.XSDSchema的对象，并已经在里面加入或者改动很多的元素类型等信息后。我们想知道我们的加入或者改动是否有效。那么这个时候我们应该怎么办呢？

有两种方式，

（1）我们把生成的org.eclipse.xsd.XSDSchema的对象，写到一个文件中面去

（2）第二种方式就是直接把XSDSchema对象转成一个字符串，然后把XSDSchema代码的XSD打印出来。

在我们的代码调试过程中。当然是另外一种方式更为的方便和快捷。

其详细的代码方法例如以下：

import org.eclipse.xsd.XSDImport;

import org.eclipse.xsd.XSDInclude;

import org.eclipse.xsd.XSDRedefine;

import org.eclipse.xsd.XSDSchema;

import org.eclipse.xsd.XSDSchemaDirective;

import org.eclipse.xsd.util.XSDResourceImpl;

import org.w3c.dom.Element;

public class SchemaPrintService {

	public static void printSchema(XSDSchema xsdSchema){

	 System.out.println("<!-- ===== Schema Composition =====");

	 printDirectives("  ", xsdSchema);

        System.out.println("-->");

        System.out.println("<!-- [ " + xsdSchema.getSchemaLocation() + " ] -->");

        xsdSchema.updateElement();

        Element element = xsdSchema.getElement();

        if (element != null){

          // Print the serialization of the model.

          XSDResourceImpl.serialize(System.out, element);

        }

	}

	private static void printSchemaStart(XSDSchema xsdSchema) {

		System.out.print("<schema targetNamespace=\"");

		if (xsdSchema.getTargetNamespace() != null) {

			System.out.print(xsdSchema.getTargetNamespace());

		}

		System.out.print("\" schemaLocation=\"");

		if (xsdSchema.getSchemaLocation() != null) {

			System.out.print(xsdSchema.getSchemaLocation());

		}

		System.out.print("\">");

	}

	private static void printDirectives(String indent, XSDSchema xsdSchema) {

		System.out.print(indent);

		printSchemaStart(xsdSchema);

		System.out.println();

		if (!xsdSchema.getReferencingDirectives().isEmpty()) {

			System.out.println(indent + "  <referencingDirectives>");

			for (XSDSchemaDirective xsdSchemaDirective : xsdSchema.getReferencingDirectives()) {

				XSDSchema referencingSchema = xsdSchemaDirective.getSchema();

				System.out.print(indent + "    ");

				printSchemaStart(referencingSchema);

				System.out.println();

				System.out.print(indent + "      ");

				if (xsdSchemaDirective instanceof XSDImport) {

					XSDImport xsdImport = (XSDImport) xsdSchemaDirective;

					System.out.print("<import namespace=\"");

					if (xsdImport.getNamespace() != null) {

						System.out.print(xsdImport.getNamespace());

					}

					System.out.print("\" schemaLocation=\"");

				} else if (xsdSchemaDirective instanceof XSDRedefine) {

					System.out.print("<redefine schemaLocation=\"");

				} else if (xsdSchemaDirective instanceof XSDInclude) {

					System.out.print("<include schemaLocation=\"");

				}

				if (xsdSchemaDirective.getSchemaLocation() != null) {

					System.out.print(xsdSchemaDirective.getSchemaLocation());

				}

				System.out.println("\"/>");

				System.out.println(indent + "    </schema>");

			}

			System.out.println(indent + "  </referencingDirectives>");

		}

		if (!xsdSchema.getIncorporatedVersions().isEmpty()) {

			System.out.println(indent + "  <incorporatedVersions>");

			for (XSDSchema incorporatedVersion : xsdSchema

					.getIncorporatedVersions()) {

				printDirectives(indent + "    ", incorporatedVersion);

			}

			System.out.println(indent + "  </incorporatedVersions>");

		}

		System.out.println(indent + "</schema>");

	}

}