spring RequestMethod.POST-请求方法'GET'不支持

Question

我尝试获取过滤器页面参数，并使用它通过自定义按钮jsp进行一些操作。我使用JFrame制作一个弹出窗口并为用户显示信息。但是问题是我有一个java.awt.HeadlessException并导致500错误引发了我的网页。

这是摘录：

private void deploymentCoordinationFunc(FilterForm filterForm, String function) throw HeadlessException{
        DeploymentPageFilter filter = new DeploymentPageFilter();
        filter.setId(filterForm.getDeploymentId());
        // Set all different parameters from filter

        // make pop-up with message
        final JFrame frame = new JFrame();
        frame.setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);
        frame.pack();
        frame.setVisible(true);
        frame.dispose();

        List<Long> ids = deploymentManager.getDeploymentsIdFiltered(filter);
        List<Boolean> checks = new ArrayList<>();
        float nbOfTrue;
        float percentageAuthorize;
        float percentagePlanned;
        float lengthIds = ids.size();
        switch (function){

            case "checkAuthorize":
                for (int i=1; i==lengthIds;i++){
                    checks.add(deploymentManager.checksAuthorizedAllowed(ids.get(i)));
                }
                nbOfTrue = Collections.frequency(checks, true);
                percentageAuthorize = (nbOfTrue/lengthIds)*100;
                LOGGER.info("check Authorize : "+checks.size()+" and percentage checked correctly:"+nbOfTrue);
                JOptionPane.showMessageDialog(frame, "Check done ! Percentage of deployments correctly set : "+percentageAuthorize+"%. \n If not 100%, be sure that all deployments filtered are in PLANNED status and be confirmed !");

            case "checkPlan":
                for (int i=1; i==lengthIds;i++){
                    checks.add(deploymentManager.checksPlannedAllowed(ids.get(i)));
                }
                nbOfTrue = Collections.frequency(checks, true);
                percentagePlanned = (nbOfTrue/lengthIds) * 100;
                LOGGER.info("Check Plan :"+checks.size()+" and percentage checked correctly"+nbOfTrue);
                JOptionPane.showMessageDialog(frame, "Check done ! Percentage of deployments correctly set : "+percentagePlanned+"%. \n If not 100%, be sure that all deployments filtered are in REQUEST status !");

            case "authorizeDeployments":
                for (int i=1; i==lengthIds;i++){
                    checks.add(deploymentManager.checksAuthorizedAllowed(ids.get(i)));
                }
                if (checks.size() == lengthIds){
                    for (int j=1; j == lengthIds; j++){
                    deploymentManager.authorizeDeployment(ids.get(j));
                    }
                }
                LOGGER.info("");
                JOptionPane.showMessageDialog(frame, "Number of deployments PLANNED : "+checks.size());

            case "planDeployments":
                for (int i=1; i==lengthIds;i++) {
                    checks.add(deploymentManager.checksPlannedAllowed(ids.get(i)));
                }
                if (checks.size() == lengthIds){
                    for (int j=1; j ==lengthIds; j++){
                        deploymentManager.planDeployment(ids.get(j));
                    }
                }
                JOptionPane.showMessageDialog(frame, "Number of deployments PLANNED : "+checks.size());
        }
    }

    @RequestMapping(value = {"/deployments/checkPlan.do"}, method = RequestMethod.POST)
    public String checkPlanDeployment(@ModelAttribute("filterForm") FilterForm filterForm) {
        deploymentCoordinationFunc(filterForm, "checkPlan");
        return "redirect:/deployments/begin.do";
    }

    @RequestMapping(value = {"/deployments/checkAuthorize.do"}, method = RequestMethod.POST)
    public String checkAuthorizeDeployment(@ModelAttribute("filterForm") FilterForm filterForm){
        deploymentCoordinationFunc(filterForm, "checkAuthorize");
        return "redirect:/deployments/begin.do";
    }

    @RequestMapping(value = {"/deployments/filterPlannedDeployments.do"}, method = RequestMethod.POST)
    public String plannedDeployments(@ModelAttribute("filterForm") FilterForm filterForm){
        deploymentCoordinationFunc(filterForm, "planDeployments");
        return "redirect:/deployments/begin.do";
    }

    @RequestMapping(value = {"/deployments/filterAuthorizeDeployments.do"}, method = RequestMethod.POST)
    public String authorizeDeployments(@ModelAttribute("filterForm") FilterForm filterForm){
        deploymentCoordinationFunc(filterForm, "authorizeDeployments");
        return "redirect:/deployments/begin.do";
    }

我使用Weblogic 12.1.3，我读到weblogic和spring版本之间的链接，如果我不能避免此Exception，如何使弹出窗口提供用户消息。

Answer 1

在不支持键盘，显示器或鼠标的环境中调用依赖于键盘，显示器或鼠标的代码时，将抛出

HeadlessException。

您正在使用Java AWT JFrame，它与Spring MVC上的Windows应用程序有关。两者相互矛盾。JFrame-独立的Windows应用程序。Spring MVC-在浏览器上运行的Web应用程序。

Answer 2

好，谢谢，我不知道。因此，要使用Spring MVC制作弹出窗口，我们不能使用JFrame。May最好在我的Controller和.jsp页面中设置不同的变量，如：