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>");
} }