📄 ajaxserver1.java
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package com.tang.foruse;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
public class AjaxServer1 extends HttpServlet {
/**
* Destruction of the servlet. <br>
*/
public void destroy() {
super.destroy(); // Just puts "destroy" string in log
// Put your code here
}
/**
* The doGet method of the servlet. <br>
*O
* This method is called when a form has its tag value method equals to get.
*
* @param request the request send by the client to the server
* @param response the response send by the server to the client
* @throws ServletException if an error occurred
* @throws IOException if an error occurred
*/
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String numstr = request.getParameter("num");
int bid = Integer.parseInt(request.getParameter("id"));
int num =0;
if(null!=numstr)
{
num = Integer.parseInt(numstr);
}
//测试
System.out.println(bid+num);
HttpSession session = request.getSession();
ArrayList al = null;
BookHandle handle = new BookHandle();
BookBean bean = handle.getBook(bid);
al = (ArrayList) session.getAttribute("car");
int i = 0;
for (i = 0; i < al.size(); i++) {
if (bean.getId() == ((OrderItem) al.get(i)).getBean().getId()) {
((OrderItem) al.get(i)).setNumItems(num);
break;
}
}
PrintWriter out = response.getWriter();
out.println("<html><body>" +
"hello"+
"</body></html>");
}
/**
* The doPost method of the servlet. <br>
*
* This method is called when a form has its tag value method equals to post.
*
* @param request the request send by the client to the server
* @param response the response send by the server to the client
* @throws ServletException if an error occurred
* @throws IOException if an error occurred
*/
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
this.doGet(request, response);
}
}
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