📄 catalogservlet.java

📁 servlet初学者最好的例子……希望能对大家有所帮助
💻 JAVA
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package servlet;

import java.io.IOException;
import java.io.PrintWriter;

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

@SuppressWarnings("serial")
public class CatalogServlet extends HttpServlet {

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

		//HttpSession session=request.getSession();
		//int itemCount=0;
		//HashMap cart=(HashMap)session.getAttribute("cart");
		//if(cart!=null)
		//{
			//itemCount=cart.size();
		//}
		
		response.setContentType("text/html;charset=gb2312");
		PrintWriter out = response.getWriter();
		
		//String contextPath=request.getContextPath();
		//String url=response.encodeURL(contextPath+"/cart");
		out.println("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">");
		out.println("<HTML>");
		out.println("  <HEAD><TITLE>简单购物车</TITLE></HEAD>");
		out.println("  <BODY>");
		out.println("<TABLE border=\"0\" width=\"100%\"><tr>");
		out.println("<td align=\"left\" valign=\"bottom\">");
        out.println("<H1>欢迎来到开心水果店购物</H1></td></tr></TABLE><HR>");
        out.print("<FORM ACTION=\"cart\" Method=\"POST\">");
        //out.print(url);
        //out.println("\" METHOD=\"POST\">");
        out.println("<TABLE CELLSPACING=\"5\" CELLPADDING=\"5\"><TR>");
        
        out.println("<TD ALIGN=\"center\"><B>种类</B></TD>");
        out.println("<TD ALIGN=\"center\"><B>单价</B></TD>");
        out.println("<TD ALIGN=\"center\"><B>数量</B></TD></TR><TR>");
        
        out.println("<TD ALIGN=\"center\">"+"苹果"+"</TD>");
        out.println("<TD ALIGN=\"center\">"+"5.5"+"</TD>");
        out.println("<TD ALIGN=\"center\">");
        out.println("<INPUT NAME=\"apple_amount\"></TD></TR><TR>");
        
        out.println("<TD ALIGN=\"center\">"+"香蕉"+"</TD>");
        out.println("<TD ALIGN=\"center\">"+"4.5"+"</TD>");
        out.println("<TD ALIGN=\"center\">");
        out.println("<INPUT NAME=\"banana_amount\"></TD></TR><TR>");
        
        out.println("<TD ALIGN=\"center\">"+"葡萄"+"</TD>");
        out.println("<TD ALIGN=\"center\">"+"3.6"+"</TD>");
        out.println("<TD ALIGN=\"center\">");
        out.println("<INPUT NAME=\"grape_amount\"></TD></TR><TR>");
        
		out.println("</TABLE><HR>");
		out.println("<INPUT TYPE=\"submit\" NAME=\"btn_submit\" VALUE=\"放入购物车\">");
		out.println("</FORM>");
		out.println("  </BODY>");
		out.println("</HTML>");
		out.flush();
		//out.close();
	}

}
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