英文:
Thymeleaf doesn't see page html in templates
问题
我是Spring Boot应用程序开发的新手。我使用Eclipse IDE，Spring Boot版本为3.1.1，Maven项目。
问题是我的.html页面位于模板中（src/main/resources/templates），需要通过它们的链接显示（例如localhost:8080/page），为它们创建了控制器。我还尝试在错误情况下显示页面（/error），该页面位于相同的文件夹中 - 并且它显示出来了。
此外，我将提供主要方法、控制器的代码以及HTML页面的一小部分代码（它们相当大...）
.java文件中的void main方法：
@SpringBootApplication
public class ChatSbAppApplication {
public static void main(String[] args) {
SpringApplication.run(ChatSbAppApplication.class, args);
}
}
错误控制器（正常工作）：
@Controller
public class ErrorController implements org.springframework.boot.web.servlet.error.ErrorController {
@RequestMapping("/error")
public String handleError() {
return "error";
}
@Override
public String getErrorPath() {
return "/error";
}
}
标准控制器：
@Controller
public class UserAccountController {
private final UserAccountService userAccountService;
@Autowired
public UserAccountController(UserAccountService userAccountService) {
this.userAccountService = userAccountService;
}
///注册
@GetMapping("/register")
public String showRegistrationForm() {
return "register";
}
@PostMapping("/register")
public String registerUser(@RequestBody UserAccount userAccount) {
userAccountService.saveUserAccount(userAccount);
return "redirect:/login";
}
///授权
@GetMapping("/login")
public String loginUser() {
return "login";
}
@PostMapping("/login")
public String processLoginForm() {
return "redirect:/chats";
}
}
application.properties：
spring.datasource.url=jdbc:postgresql://localhost:5432/ChatDB
spring.datasource.username=postgres
spring.datasource.password=1234
spring.datasource.driver-class-name=org.postgresql.Driver
server.error.whitelabel.enabled = false
spring.jpa.open-in-view=false
我还尝试更改配置，但也不起作用。
@Configuration
public class WebConfig implements WebMvcConfigurer {
@Bean
public ViewResolver viewResolver() {
ThymeleafViewResolver resolver = new ThymeleafViewResolver();
resolver.setTemplateEngine(templateEngine());
resolver.setCharacterEncoding("UTF-8");
return resolver;
}
@Bean
public TemplateEngine templateEngine() {
SpringTemplateEngine engine = new SpringTemplateEngine();
engine.setEnableSpringELCompiler(true);
engine.setTemplateResolver(templateResolver());
return engine;
}
@Bean
public ITemplateResolver templateResolver() {
SpringResourceTemplateResolver resolver = new SpringResourceTemplateResolver();
resolver.setPrefix("classpath:/templates/");
resolver.setSuffix(".html");
resolver.setTemplateMode(TemplateMode.HTML);
resolver.setCharacterEncoding("UTF-8");
return resolver;
}
@Override
public void addInterceptors(InterceptorRegistry registry) {
registry.addInterceptor(new LoggingInterceptor());
}
}
HTML示例如下：error.html可以工作，但相同的login.html无法看到。另外，Thymeleaf可以很好地看到/static中的.css和.js...
<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head>
<title>Error Page</title>
<link rel="stylesheet" type="text/css" th:href="@{index.css}">
</head>
<body>
<div class="navbar">
<div class="navbar-logo">
<button onclick="changeColor()" class="color-button">
</button>
</div>
<div style="display:flex; margin-right: 40px;">
<button class="auth-button" onclick="window.location.href='login.html'">Login</button>
</div>
</div>
<script src="index.js"></script>
</body>
</html>
我也可以显示日志，但其中没有什么令人惊讶的地方 - 没有错误或警告，也没有提到创建的映射（我看到，我的观点应该有一条消息，类似“映射已创建在路径[x.html]”之类的消息，但我没有看到这样的消息）。pom.xml中也包含了Thymeleaf依赖项。
英文:
I am new to Spring boot application development. I use eclipse IDE, spring boot v.3.1.1, maven project.
The problem is that my .html pages are in templates (src/main/resources/templates), which need to be displayed by their link (like a localhost:8080/page), controllers were created for them. I also tried to display the page in case of an error (/error), which is located in the same folder - and it is displayed.
In addition, I will give the code of the main method, controllers, and a small code of the html pages (they are quite large ...)
.java file with void main:
@SpringBootApplication
public class ChatSbAppApplication {
public static void main(String[] args) {
SpringApplication.run(ChatSbAppApplication.class, args);
}
}
Error controller (works fine):
@Controller
public class ErrorController implements org.springframework.boot.web.servlet.error.ErrorController {
@RequestMapping("/error")
public String handleError() {
return "error";
}
@Override
public String getErrorPath() {
return "/error";
}
}
Standard controllers:
@Controller
public class UserAccountController {
private final UserAccountService userAccountService;
@Autowired
public UserAccountController(UserAccountService userAccountService) {
this.userAccountService = userAccountService;
}
///registration
@GetMapping("/register")
public String showRegistrationForm() {
return "register";
}
@PostMapping("/register")
public String registerUser(@RequestBody UserAccount userAccount) {
userAccountService.saveUserAccount(userAccount);
return "redirect:/login";
}
///authorisation
@GetMapping("/login")
public String loginUser() {
return "login";
}
@PostMapping("/login")
public String processLoginForm() {
return "redirect:/chats";
}
}
application.properties:
spring.datasource.url=jdbc:postgresql://localhost:5432/ChatDB
spring.datasource.username=postgres
spring.datasource.password=1234
spring.datasource.driver-class-name=org.postgresql.Driver
server.error.whitelabel.enabled = false
spring.jpa.open-in-view=false
I also tried changing the config, but it didn't work either.
@Configuration
public class WebConfig implements WebMvcConfigurer {
@Bean
public ViewResolver viewResolver() {
ThymeleafViewResolver resolver = new ThymeleafViewResolver();
resolver.setTemplateEngine(templateEngine());
resolver.setCharacterEncoding("UTF-8");
return resolver;
}
@Bean
public TemplateEngine templateEngine() {
SpringTemplateEngine engine = new SpringTemplateEngine();
engine.setEnableSpringELCompiler(true);
engine.setTemplateResolver(templateResolver());
return engine;
}
@Bean
public ITemplateResolver templateResolver() {
SpringResourceTemplateResolver resolver = new SpringResourceTemplateResolver();
resolver.setPrefix("classpath:/templates/");
resolver.setSuffix(".html");
resolver.setTemplateMode(TemplateMode.HTML);
resolver.setCharacterEncoding("UTF-8");
return resolver;
}
@Override
public void addInterceptors(InterceptorRegistry registry) {
registry.addInterceptor(new LoggingInterceptor());
}
}
HTML example below: error.html works, but same login.html does not see. Also thymeleaf saw fine .css/.js in /static...
<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head>
<title>Error Page</title>
<link rel="stylesheet" type="text/css" th:href="@{index.css}">
</head>
<body>
<div class="navbar">
<div class="navbar-logo">
<button onclick="changeColor()" class="color-button">
</button>
</div>
<div style="display:flex; margin-right: 40px;">
<button class="auth-button" onclick="window.location.href='login.html'">Login</button>
</div>
</div>
<script src="index.js"></script>
</body>
</html>
I can also show the logs, but there is nothing surprising in them - not 1 error or warning, but not 1 mention of the created mapping (I read, in my opinion there should be a message, like "mapping was created along the path [x.html]" or something like that, I didn't have such a message). The thymeleaf dependency is also in pom.xml 
As I described above, I tried to change the thymeleaf config, but it didn't work. Also I read some other people's problems and tried to "Project->Update Maven Project" (Alt+F5) but it didn't help too
答案1
得分: 0
使用 window.location 打开链接需要设置完整路径。
尝试替换：
<button class="auth-button" onclick="window.location.href='login.html'">Login</button>
为：
<button class="auth-button" onclick="window.location.href='http://localhost:8080/login'">Login</button>
还请注意，不应包含 .html 扩展名，因为控制器在解析模板时会处理此部分。
英文:
Opening link using window.location will require you to set complete path.
Try to replace
<button class="auth-button" onclick="window.location.href='login.html'">Login</button>
With
<button class="auth-button" onclick="window.location.href='http://localhost:8080/login'">Login</button>
Also note you should not include .html extension since controller takes care of this when parsing templates
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