無法在JSP中顯示待辦事項串列

我是 Spring Boot 的新手，并嘗試使用 Spring Boot 和 JSP 創建一個簡單的 ToDo 應用程式。我試圖在我的 JSP 中顯示待辦事項串列，但它沒有反映。我嘗試了所有方法，而在 IntelliJ 想法中放置斷點時，我能夠在我的 repo 中看到待辦事項串列。

ToDoView.jsp

 <%@ include file="header.jsp"%>
<%@ include file="navigation.jsp"%>

<div class="container">
    <div>
        <a type="button" class="btn btn-primary btn-md" href="/add-todo">Add Todo</a>
    </div>
    <br>
    <div class="panel panel-primary">
        <div class="panel-heading">
            <h3>List of TODO's</h3>
        </div>
        <div >
            <table >
                <thead>
                    <tr>
                        <th width="40%">Description</th>
                        <th width="40%">Target Date</th>
                        <th width="20%"></th>
                    </tr>
                </thead>
                <tbody>
                ${todolist}
                    <c:forEach items="${todolist}" var="todo">
                        <tr>
                            <td>${todo.description}</td>
                            <td>${todo.getDescription()}</td> <td><fmt:formatDate value=${todo.getToDoDate()} pattern="dd/MM/yyyy" /></td>
                            <td><a type="button"  href="/update-todo?id=${todo.getId()}">Update</a>
                             <a type="button"  href="/delete-todo?id=${todo.getId()}">Delete</a></td>
                        </tr>
                    </c:forEach>
                </tbody>
            </table>
        </div>
    </div>
</div>
<%@ include file="footer.jsp"%>

HomeController.java

package com.toDoApp.ToDoApp;

@Controller
public class HomeController
{
    @Autowired
    ToDoRepo repo;

    @RequestMapping("/")
    public static String home()
    {
        return "Home";
    }

    @GetMapping(path = "/list-todos", produces = {"application/json"})
    public String toDoView(Model m)
    {
        m.addAttribute("todolist", repo.findAll());

        return "ToDoView";
    }
}

ToDoRepo.java

public interface ToDoRepo extends JpaRepository<ToDoList, Integer>
{

}

ToDoList.java

package com.toDoApp.ToDoApp;

import javax.persistence.*;
import java.util.Date;

@Entity
public class ToDoList
{
    @Id
    private int id;
    private String description;
    private Date toDoDate;

    public ToDoList()
    {
        super();
    }

    public ToDoList(String description, Date toDoDate)
    {
        super();
        this.description = description;
        this.toDoDate = toDoDate;
    }

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public String getDescription() {
        return description;
    }

    public void setDescription(String description) {
        this.description = description;
    }

    public Date getToDoDate() {
        return toDoDate;
    }

    public void setToDoDate(Date toDoDate) {
        this.toDoDate = toDoDate;
    }
}

我嘗試了所有其他方法，但找不到任何東西。請幫幫我。

謝謝你

uj5u.com熱心網友回復：

添加jasper依賴

<dependency>
   <groupId>org.apache.tomcat.embed</groupId>
   <artifactId>tomcat-embed-jasper</artifactId>
   <scope>provided</scope>
</dependency>

并像這樣更改 td 標簽

uj5u.com熱心網友回復：

<dependency>
    <groupId>org.apache.tomcat.embed</groupId>
    <artifactId>tomcat-embed-jasper</artifactId>
    <scope>provided</scope>
</dependency>

嘗試添加 jasper 依賴項

標籤：爪哇弹簧靴休息弹簧MVCjsp

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