英文:
Spring boot application whitelabel error page
问题
以下是翻译好的部分：
我在使用我的Spring Boot应用程序时遇到了白标签错误页面404。我正在硬编码一个学生列表，应该按照名字的方式显示在页面上。我尝试了不同的模板方法，但似乎没有任何效果。我还尝试了使用/*端点，但也没有任何效果。我找不到任何解决这个问题的相关问题。以下是不同的类；
控制器（Controller）：
public class StudentController {
private List<Student> studentList = new ArrayList<>();
@GetMapping("/hello")
public String friendListing(Model model) {
Student student1 = new Student("Kate", "Cole");
studentList.add(student1);
Student student2 = new Student("Dan", "Brown");
studentList.add(student2);
Student student3 = new Student("Mike", "Mars");
studentList.add(student3);
model.addAttribute("studentList", studentList);
return "hello";
}
}
模型（Model）：
public class Student {
private String firstName;
private String lastName;
public Student(String fn, String ln) {
this.firstName = fn;
this.lastName = ln;
}
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
@Override
public String toString() {
return firstName + " " + lastName;
}
}
视图（View）：
<!DOCTYPE HTML>
<html xmlns:th="http://www.thymeleaf.org">
<head>
<title>使用Spring Boot进行服务器编程</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
</head>
<body>
<tr th:each="student: ${studentList}">
<td th:text="${student.firstName}"></td>
</tr>
</body>
</html>
英文:
I'm getting whitelabel error page 404 with my springboot application. I am hardcoding a list of students and they should pop as firstname basis to the page. I've tried different approaches with the template but nothing seems to work. I also tried to do /* endpoint but didn't have any effect aswell. I couldn't find any relevant questions for this problem that would fix my problems. These are the different classes;
Controller;
public class StudentController {
private List<Student> studentList = new ArrayList<>();
@GetMapping("/hello")
public String friendListing(Model model) {
Student student1 = new Student("Kate", "Cole");
studentList.add(student1);
Student student2 = new Student("Dan", "Brown");
studentList.add(student2);
Student student3 = new Student("Mike", "Mars");
studentList.add(student3);
model.addAttribute("studentList", studentList);
return "hello";
}}
Model;
public class Student {
private String firstName;
private String lastName;
public Student(String fn, String ln) {
this.firstName = fn;
this.lastName = ln;
}
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
@Override
public String toString() {
return firstName + " " + lastName;
}}
And view;
<!DOCTYPE HTML>
<html xmlns:th="http://www.thymeleaf.org">
<head>
<title>Server Programming with Spring Boot</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
</head>
<body>
<tr th:each="student: ${studentList}">
<td th:text="${student.firstName}"></td>
</tr>
</body>
</html>
答案1
得分: 0
你的主要应用程序类在哪里？
- 使用
@ComponentScan注解与你的控制器类包 - 控制器类应该有
@Controller注解。
英文:
Where is your main application class?
- Use
@ComponentScanannotation with you controller class package - Controller class should have
@Controllerannotation.
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