Question

我使用J2EE Servlet和tomcat服务器7.0.42和eclipse（kepler版本），我希望从html页面插入数据并在提交按钮按下后将此信息插入到mysql表中生成以下错误。

    **Error After Submit button is pressed 
   HTTP Status 404 -
   type Status report message
   description The requested resource is not available.
   Apache Tomcat/7.0.42**

   InsertData.java ( Servlet class )

这是servlet的java类，我在这个文件中创建了数据库连接，并从html页面访问数据。

 package demo; 

 public class InsertData extends HttpServlet
 {
 public void doGet(HttpServletRequest request, HttpServletResponse response)
 throws IOException, ServletException
 {   
 String t1= request.getParameter("text1");
 String t2= request.getParameter("text2");
 String t3= request.getParameter("text3");
 String t4= request.getParameter("text4");

 Connection con=null;   
 try
 {
  Class.forName("com.mysql.jdbc.Driver");            
  con=DriverManager.getConnection
  ("jdbc:mysql://localhost:3306/servlet_demo","root","");


   java.sql.Statement stmt =con.createStatement(); 

   String sql= "INSERT INTO demo(text1,text2,text3,text4)
   VALUES('"+t1+"','"+t2+"','"+t3+"','"+t4+"')" ;
  stmt.executeQuery(sql);  
  con.close(); 

  }
 catch(SQLException sx)
 {
 out.println(sx);
  }
 catch(ClassNotFoundException cx)
 {
 out.println(cx);
  }
 }
  }

Answer 1

确保您的web.xml具有servlet条目...并且在tomcat中部署了Web应用程序

HTTP状态404 - 请求的资源不可用。在java servlet中

1 个答案: