Html 错误&引用；“文件过早结束”；

我总共有3个文件，如下所示

data.xml

render.xslt

last.xslt

见图片

我的第一个任务是将data.xml和render.xslt作为输入，将输出为All.xml，之后，给定的servlet将处理All.xml和last.xslt作为输入，对Http请求做出输出响应

import java.io.File;
import java.io.IOException;
import java.io.PrintWriter;
import java.net.URL;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.xml.transform.Source;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.stream.StreamResult;
import javax.xml.transform.stream.StreamSource;

/**
 *
 * @author Shubham Dalal
 */
public class Manager extends HttpServlet {
    public void doGet(HttpServletRequest request,
        HttpServletResponse response)
    throws ServletException, IOException,
    java.net.MalformedURLException {

        // Tell the response object that our servlet returns HTML
        response.setContentType("text/html; charset=UTF-8");
        // Ask for a response stream
        PrintWriter output = response.getWriter();
        // This block tries to open our XML and XSLT files
        // which may throw an exception, thus the try..catch
        try {
            // Get a empty transform factory (factory pattern)
            TransformerFactory tFactory = TransformerFactory.newInstance();

            // Get the actual server path for XML and XSLT files
            String loc = getServletContext().getRealPath("") + "/";

            Source sdk2 = new StreamSource(
                new URL("file", "", loc + "full.xml").openStream());
            Source Main = new StreamSource(
                new URL("file", "", loc + "Main.xslt").openStream());
            // Generate the transformer
            Transformer Maintransformer = tFactory.newTransformer(Main);
            // GRAND FINALE!
            // Perform the transformation, send output to the browser
            Maintransformer.transform(sdk2, new StreamResult(output));

            // Get the XML input document and the stylesheet using
            // the string loc that holds the path information,
            // creating a JAXP Source instance
            Source sdk = new StreamSource(
                new URL("file", "", loc + "sdk.xml").openStream());
            Source list = new StreamSource(
                new URL("file", "", loc + "list.xsl").openStream());
            // Generate the transformer
            Transformer listtransformer = tFactory.newTransformer(list);
            listtransformer.transform(sdk, new StreamResult(new File("", loc + "full.xml")));

        } catch (Exception e) {
            output.write(e.getMessage());
            e.printStackTrace(output);
        }
        output.close();
    }
}

问题是，我不知道如何在一个servlet中编写完整的代码，该servlet执行第一个任务，然后处理第二个任务，即All.xml和last.xslt，以提供html输出。 我是个新手

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提前感谢。请参阅如何链接两个或多个XSLT转换。谢谢@MartinHonnen。请在单个servlet中向我展示整个代码。我不知道如何实现这一点。