shoppingcartviewerhidden.java

来自「j2EE」· Java 代码 · 共 61 行

JAVA
61 行
字号 
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;

public class ShoppingCartViewerHidden extends HttpServlet {

  public void doGet(HttpServletRequest req, HttpServletResponse res)
                               throws ServletException, IOException {
    res.setContentType("text/html");
    PrintWriter out = res.getWriter();

    out.println("<HEAD><TITLE>Current Shopping Cart Items</TITLE></HEAD>");
    out.println("<BODY>");

    // Cart items are passed in as the item parameter.
    String[] items = req.getParameterValues("bookID");

    // Print the current cart items.
    out.println("You currently have the following items in your cart:<BR>");
    if (items == null) {
      out.println("<B>None</B>");
    }
    else {
      out.println("<UL>");
      for (int i = 0; i < items.length; i++) {
        out.println("<LI>" + items[i]);
      }
      out.println("</UL>");
    }

    // Ask if the user wants to add more items or check out.
    // Include the current items as hidden fields so they'll be passed on.
    out.println("<FORM ACTION='ShoppingCartNext' METHOD=POST>");
    if (items != null) {
      for (int i = 0; i < items.length; i++) {
        out.println("<INPUT TYPE=hidden NAME=bookID VALUE=\"" +
          items[i] + "\">");
      }
    }
    out.println("Would you like to<BR>");
    out.println("<INPUT TYPE=submit VALUE=\" Add More Items \">");
    out.println("</form>");
    out.println("<Form Action='ShoppingCart' Method = POST>");
	if (items != null) {
      for (int i = 0; i < items.length; i++) {
        out.println("<INPUT TYPE=hidden NAME=bookID VALUE=\"" +
          items[i] + "\">");
      }
    }
    out.println("<INPUT TYPE=submit VALUE=\" Check Out \">");
    out.println("</FORM>");

    out.println("</BODY></HTML>");
  }

	public void doPost(HttpServletRequest req, HttpServletResponse res)
                               throws ServletException, IOException {
			doGet(req,res);
	}

}

shoppingcartviewerhidden.java - 源码说明

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