解决Java web 中 Request method 'GET' not supported问题-蒲公英云

解决Java web 中 Request method 'GET' not supported问题

小咪咪 2021-09-22 17:04 1585阅读 0赞

一般这种错误是发送id的时候，servlet接收不到。

 <a href="./deleteServlet?id=$\{emp.id\}" style="color:\#000;">删除</a>

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import edu.jmi.emp.dao.EmpDao;

/**
* Servlet implementation class deleteServlet
*/
@WebServlet(“/deleteServlet”)
public class deleteServlet extends HttpServlet {
private static final long serialVersionUID = 1L;

/\*\*  
 \* @see HttpServlet\#HttpServlet()  
 \*/  
public deleteServlet() \{  
    super();  
    // TODO Auto-generated constructor stub  
\}
/\*\*  
 \* @see HttpServlet\#doGet(HttpServletRequest request, HttpServletResponse response)  
 \*/  
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException \{  
    // TODO Auto-generated method stub  
    response.getWriter().append("Served at: ").append(request.getContextPath());  
    doPost(request, response);  
\}
/\*\*  
 \* @see HttpServlet\#doPost(HttpServletRequest request, HttpServletResponse response)  
 \*/  
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException \{  
    // TODO Auto-generated method stub  
    request.setCharacterEncoding("utf-8");  
    int id=Integer.parseInt(request.getParameter("id"));  
    EmpDao empDao=new EmpDao();  
    boolean b=empDao.deleteEmp(id);  
    System.out.println(id);  
    if(b==true) \{  
        request.getRequestDispatcher("MainServlet").forward(request, response);  
    \}else \{  
        response.sendRedirect("index.jsp");  
    \}  
\}