import java.io.BufferedReader;
import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class TestServlet extends HttpServlet {

	private static final long serialVersionUID = -4116694630999616251L;

	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		doGet(request, response);
	}

	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		System.out.println("Hello World!");
		// PrintWriter out = response.getWriter();
		try {
			String r = getDoc(request);
			System.out.println(r);
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}

	public String getDoc(HttpServletRequest request) throws Exception {
		System.out.println(request.getContentLength());
		char[] readerBuffer = new char[request.getContentLength()];
		BufferedReader bufferedReader = request.getReader();
		System.out.println("開始處理上傳數據");
		int portion = bufferedReader.read(readerBuffer);
		int amount = portion;
		while (amount < readerBuffer.length) {
			portion = bufferedReader.read(readerBuffer, amount,
					readerBuffer.length - amount);
			amount = amount + portion;
		}

		StringBuffer stringBuffer = new StringBuffer(
				(int) (readerBuffer.length * 1.5));
		for (int index = 0; index < readerBuffer.length; index++) {
			char c = readerBuffer[index];
			stringBuffer.append(c);
		}

		String xml = stringBuffer.toString();
		System.out.println(xml);
		return xml;
		// 獲得xml字符串后，使用dom4j parse為DOM對象，就可以了。
		// Document document = DocumentHelper.parseText(xml);
	}
}
/*
 * public String urlDecode(String value) { try { return
 * java.net.URLDecoder.decode(value, "GB2312"); } catch (Exception ex) {
 * ex.printStackTrace(); } return value; } 如果有亂碼的用這個方法
 */