📄 updateservlet.java
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package myservlet;
import java.io.*;
import javax.servlet.ServletException;
import javax.servlet.http.*;
import java.sql.*;
import com.jspdev.ch12.*;
import com.jspdev.util.*;
public class UpdateServlet extends HttpServlet {
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
request.setCharacterEncoding("gb2312");
response.setContentType("text/html;charset=gb2312");
PrintWriter out = response.getWriter();
String productId=request.getParameter("productId");
String name=request.getParameter("name");
String price=request.getParameter("price");
String producer=request.getParameter("producer");
String descn=request.getParameter("description");
String categoryId=request.getParameter("categoryId");
//下面三步将界面的值传入到Bean中
Product lbean=new Product();
lbean.setProductId(productId);
lbean.setCategoryId(categoryId);
lbean.setName(name);
lbean.setDescription(descn);
lbean.setProducer(producer);
lbean.setPrice(price);
try{
//下面的这个步为连接数据库
ProductBean aduB=new ProductBean();
aduB.modifyProduct(lbean);
out.println("<html>");
out.println("<head><title>Update</title></head>");
out.println("<body>");
out.println("<p>Update Success</p>");
out.println("<a href=\"/wy/index.html\">return</a>");
out.println("</body></html>");
}catch(Exception e){
e.printStackTrace();
}
}
public void destroy() {
super.destroy();
}
}
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