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HTTP状态405-此URL不支持HTTP方法POST

http-status-code-405 servlets java

Ankur · 技术社区 · 16 年前

HTTP Status 405 - HTTP method POST is not supported by this URL getServletContext().getRequestDispatcher("/EditObject?id="+objId).forward(request, response);

package web.objects;

import java.io.IOException;
import java.sql.SQLException;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import dao.ObjDetailsDao;

@SuppressWarnings("serial")
public class EditObjectText extends HttpServlet {

 public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {


  int objId = Integer.parseInt(request.getParameter("objId"));
  String text = (String)request.getParameter("description");

  ObjDetailsDao oddao = new ObjDetailsDao();
   try {
oddao.modifyText(text, objId);
 /////////////
    getServletContext().getRequestDispatcher("/EditObject?id="+objId).forward(request, response);
 ////////////
   } catch (SQLException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
   } catch (ServletException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
   } catch (IOException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
        }
      }
}

编辑:我添加了 throws ServletException, IOException

EDIT:EditObject servlet如下所示

 @SuppressWarnings("serial")
public class EditObject extends HttpServlet{

    public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {

        int objId = Integer.parseInt(request.getParameter("id"));
        dispPage(objId, request, response);
    }

    private void dispPage(int objId, HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException{        

// ... lots of code in here
            getServletContext().getRequestDispatcher("/jsp/objectPageEdit.jsp").forward(request, response);

    }
}

另一个编辑:所以基本上我不能做我正在做的事。我需要的是,用户提交一个post请求,然后我将他/她带回一个servlet,该servlet使用Get方法而不是post。我怎样才能在不出错的情况下进行转诊?提前谢谢。

2 回复 | 直到 16 年前

BalusC 16 年前

_{(很抱歉我之前发错了答案,我删除了)}

/EditObject doPost() 方法被重写。它会被召唤 RequestDispatcher#forward() 因为当前运行HTTP请求的方法是POST。这个违约 HttpServlet#doPost() 实现将返回HTTP405。如果您的实际意图是对其发出GET请求 doGet() HttpServletResponse#sendRedirect() 相反。

response.sendRedirect("/EditObject?id="+objId);

gawi 16 年前

将doPost()添加到EditObject类:

 @SuppressWarnings("serial")
public class EditObject extends HttpServlet{

    public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
      process(request, response);
    }

    public void doPost(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
      process(request, response);
    }


    public void process(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {    
        int objId = Integer.parseInt(request.getParameter("id"));
        dispPage(objId, request, response);
    }

    private void dispPage(int objId, HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException{        

// ... lots of code in here
            getServletContext().getRequestDispatcher("/jsp/objectPageEdit.jsp").forward(request, response);

    }
}