📄 updateproductservlet.java
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package com.westaccp.jsp.company.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 com.westaccp.jsp.company.dao.ProductDao;
import com.westaccp.jsp.company.dao.impl.ProductDaoImpl;
import com.westaccp.jsp.company.model.Product;
public class UpdateProductServlet extends HttpServlet {
/**
* Constructor of the object.
*/
public UpdateProductServlet() {
super();
}
/**
* 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>
*
* 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 {
response.setContentType("text/html");
PrintWriter out = response.getWriter();
out
.println("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">");
out.println("<HTML>");
out.println(" <HEAD><TITLE>A Servlet</TITLE></HEAD>");
out.println(" <BODY>");
out.print(" This is ");
out.print(this.getClass());
out.println(", using the GET method");
out.println(" </BODY>");
out.println("</HTML>");
out.flush();
out.close();
}
/**
* 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 {
response.setContentType("text/html;charset=UTF-8");
PrintWriter out = response.getWriter();
request.setCharacterEncoding("UTF-8");
int productId = Integer.parseInt(request.getParameter("productId"));
String serialNumber = request.getParameter("txtSerialNumber");
String name = request.getParameter("txtProductName");
String brand = request.getParameter("txtBrand");
String model = request.getParameter("txtModel");
double price = Double.parseDouble(request.getParameter("txtPrice"));
String picture = request.getParameter("txtPicture");
String description = request.getParameter("txtDescription");
Product product = new Product();
product.setProductId(productId);
product.setSeiralNumber(serialNumber);
product.setName(name);
product.setBrand(brand);
product.setModel(model);
product.setPrice(price);
product.setPicture(picture.substring(picture.lastIndexOf("\\") + 1));
product.setDescription(description);
ProductDao productDao = new ProductDaoImpl();
int rowCount = productDao.updateProduct(product);
if(rowCount > 0) {
out.println("<script type='text/javascript'>alert('修改成功！');location.href='../admin/manageProduct.jsp';</script>");
} else {
out.println("<script type='text/javascript'>alert('修改失败！');history.go(-1);</script>");
}
}
/**
* Initialization of the servlet. <br>
*
* @throws ServletException if an error occurs
*/
public void init() throws ServletException {
// Put your code here
}
}
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