以下是servlet和web.xml文件。
Register.java
package org.maximo.aadi;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.sql.*;
public class Register extends HttpServlet {
private static final long serialVersionUID = 1L;
protected void doPost(HttpServletRequest request, HttpServletResponse
response) throws ServletException, IOException {
response.setContentType("text/html;charset=UTF-8");
PrintWriter out = response.getWriter();
String regno = request.getParameter("rno_input");
String userdept = request.getParameter("userdept_input");
String vehicletype = request.getParameter("vehicle_type_input");
try{
//loading drivers for mysql
Class.forName("com.mysql.jdbc.Driver");
//creating connection with the database
Connection con = DriverManager.getConnection("jdbc:mysql://localhost:3306/vehicleRH","root","adi.12345");
PreparedStatement ps = con.prepareStatement("insert into 'vehicleRH'.'checklist'(Registeration,VehicleType,UserDept)values(regno,userdept,vehicletype");
ps.setString(1, regno);
ps.setString(2, userdept);
ps.setString(3, vehicletype);
int i=ps.executeUpdate();
if(i>0)
{
out.println("You are sucessfully registered");
}
}
catch(Exception se)
{
se.printStackTrace();
}
}
}
的web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
id="WebApp_ID" version="3.0">
<display-name>Maximo</display-name>
<servlet>
<servlet-name>Register</servlet-name>
<servlet-class>org.maximo.aadi.Register</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>Register</servlet-name>
<url-pattern>/Register</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
</web-app>
.class文件没有生成,可能是什么错误?
我是新手,所以你能告诉我我的代码中有什么错误吗?在运行寄存器类时遇到错误,因为它会给出错误ClassNotFound
。任何帮助都会受到赞赏。