如何解决春季 - 我收到的是白标错误页面而不是我的家,为什么?
早上好,
我正在尝试使用 Spring 和 MVC 编写一个简单的 Web 应用程序,在控制台中一切都很好,但是当我尝试从 url 获取主页时,浏览器为我提供了带有错误 404 的白标签错误页面。>
这是我的控制器:
package com.beanspring.controller;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import com.beanspring.model.Alimento;
import com.beanspring.model.GiornoDiDieta;
import com.beanspring.service.alimentoService;
import com.beanspring.service.giornoDiDietaService;
u/Controller
u/RequestMapping(value ="/dieta")
public class DietaController {
u/Autowired
alimentoService alService;
u/Autowired
giornoDiDietaService giornoService;
u/RequestMapping(value ="/home",method = RequestMethod.GET )
public String creaHome(Model model)
{
model.addAttribute("listaAlimenti",alService.getAllAlimenti());
System.out.println("ECCOMI");
return "Home";
}
}
Home.html 位于 src/main/resources/templates 中,如果我直接打开它,它会在浏览器中按预期显示。
Spring 控制台没有显示错误,甚至打印“ECCOMI”,因此 url “localhost:8080/dieta/home” 获取方法。
<?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](http://maven.apache.org/POM/4.0.0) [https://maven.apache.org/xsd/maven-4.0.0.xsd](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>2.5.0</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.slide</groupId>
<artifactId>dieta-2</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>dieta-2</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>16</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jdbc</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>MysqL</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.mariadb.jdbc</groupId>
<artifactId>mariadb-java-client</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
请你帮我好吗?
解决方法
LOL 我忘记了 Thymeleaf。我已添加
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
现在它起作用了!
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