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java - 使用 Spring Boot 和 Thymeleaf 时出现 "Circular view path would dispatch back to the current handler URL."

转载 作者:行者123 更新时间:2023-12-05 00:45:28 25 4
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当使用 Spring Boot 和 Thymeleaf 时,当尝试访问/home URL 时,我得到以下信息:

ServletException:循环 View 路径 [home]:将再次分派(dispatch)回当前处理程序 URL [/home]。检查您的 ViewResolver 设置! (提示:由于默认 View 名称生成,这可能是未指定 View 的结果。)

pom.xml:

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.3.3.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.demo</groupId>
<artifactId>watchlist</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>watchlist</name>
<description>Demo project for Spring Boot</description>

<properties>
<java.version>1.8</java.version>
</properties>

<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>

<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>

<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
</exclusion>
</exclusions>
</dependency>
</dependencies>

<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>

</project>

main/java/com.demo.WatchlistApplication.java:

package com.demo;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class WatchlistApplication {

public static void main(String[] args) {
SpringApplication.run(WatchlistApplication.class, args);
}

}

main/java/com.demo.controller.HomeController.java:

package com.demo.controller;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.servlet.ModelAndView;

@Controller
public class HomeController {

@GetMapping("/home")
public ModelAndView home() {

return new ModelAndView("home");
}
}

main/resources/templates/home.html:

<html xmlns:th="http://www.thymeleaf.org">
<head>
<meta name="viewport" content="width = device-width, initial-scale = 1, shrink-to-fit = no">
<title>Web app</title>
</head>

<body>

<p th:text="'Hello world'"></p>

</body>
</html>

最佳答案

用注解@RestController 而不是@Controller 来注解你的 Controller 类“HomeController”。
似乎与 Circular View path error Spring boot 重复

关于java - 使用 Spring Boot 和 Thymeleaf 时出现 "Circular view path would dispatch back to the current handler URL.",我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/63536544/

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