Jsp 視圖頁面不會在 Spring Boot 中呈現。 如何解決？

Question

我正在嘗試發出一個 ajax 請求，該請求向我的 Spring Boot 發送一個值。 但是，一旦我合並了 ajax 調用並且它成功地將值傳遞給 java，它就不會查看jsp頁面。 我相信問題出在方法本身，但我不完全確定。 我再次傳遞了值，但是每當我使用ModelAndView或Model它似乎都不會相應地更改頁面。

JSP：

 <script>
        var chaptersTest = ${ chapters };
        var totalChapters = chaptersTest.length;
        var codeBlock;

        for (var i = 0; i < totalChapters; i++) {

            codeBlock =


                '<div class="col-md-4">' +

                ' <a class="chapter_link" data-link="' + chaptersTest[i] + '" style="text-decoration: none; color: white"><div class="box warning">' +

                '  <h3>' + chaptersTest[i] + '</h3>' +

                '  </div></a></div>';

            $("#chapterArea").append(codeBlock);
        }


        //clicked links

        $('.chapter_link').click(function () {
            console.log("YoUR fUNCtION IS cLICKED");
            doSomething();
        });



        function doSomething() {
            var search2 = {
                "chapter": "riley"
            }

            $.ajax({
                type: "POST",
                contentType: 'application/json; charset=utf-8',
                dataType: 'json',
                url: "/ajax",
                data: JSON.stringify(search2),
                success: function (result) {
                    console.log("It somewhat worked");
                }

            });

        }



    </script>

爪哇：

@RequestMapping(value = "/ajax", method = RequestMethod.POST)
    public @ResponseBody String sectionView(@RequestBody BEntity benny, HttpServletRequest request) {
        String temp = benny.getChapter();
        ModelAndView secView = new ModelAndView();

        try {
            secView.setViewName("viewsections.jsp");
            //It is not sending the jsp to change the page

        } catch (Exception e) {
            secView.setViewName("error.jsp");

        }


        System.out.println("Test 1");
        return secView;
    }

目的：

public class BEntity {

    private String search; 
    private String chapter;
    private String section; 

    public String getSection() {
        return section; 
    }


    public String getChapter() {
        return chapter; 
    }

    public String getSearch() {
        return search;
    }

    @Override
    public String toString() {
        return "This was searched: " + search;
    } 

Answer 1

在您的控制器中，刪除@ResponseBody注釋並將返回類型更改為ModelAndView 。 在 ajax 代碼中將dataType更改為html 。

如果您沒有正確配置視圖，則在application.properties中將前綴和后綴設置為：

spring.mvc.view.prefix: /views/
spring.mvc.view.suffix: .jsp

spring.mvc.view.prefix是您的 jsp 文件所在文件夾的路徑。

@RequestMapping(value = "/ajax", method = RequestMethod.POST)
public ModelAndView sectionView(@RequestBody BEntity benny, HttpServletRequest request) {
    String temp = benny.getChapter();
    ModelAndView secView = new ModelAndView();
    try {
        secView.setViewName("viewsections");
        //It is not sending the jsp to change the page
    } catch (Exception e) {
        secView.setViewName("error");
    }
    System.out.println("Test 1");
    return secView;
}