下午好!
我正在开始 Spring 学习,我以相同的方式关注教程,但是返回错误:

java - Spring Boot Whitelabel错误页面(类型=未找到,状态= 404)-LMLPHP

资料夹结构:

java - Spring Boot Whitelabel错误页面(类型=未找到,状态= 404)-LMLPHP

奇怪的是:
如果我将“EventoController.java”插入br.com.SpringApp.SpringApp,它将正常工作。

package br.com.SpringApp.SpringApp;

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

@SpringBootApplication
public class SpringAppApplication {

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


package br.com.SpringApp.controller;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
public class EventoController {

    @RequestMapping("/cadastroEvento")
    public String form() {
        return "evento/formEvento";
    }

}

根据要求,我添加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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>br.com.SpringApp</groupId>
    <artifactId>SpringApp</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>

    <name>SpringApp</name>
    <description>Demo project for Spring Boot</description>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.5.10.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <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-devtools</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>

有人可以告诉我我错了吗?

最佳答案

确保您的主类位于其他类之上的根包中。

当您运行Spring Boot应用程序(即以@SpringBootApplication注释的类)时,Spring将仅扫描主类包下方的类。

所以你的声明是这样的

package br.com.SpringApp.SpringApp;
在这个主类中,即SpringAppApplication

package br.com.SpringApp.SpringApp.controller;
Controller 的名称,即EventoController和indexControllers

package br.com.SpringApp.SpringApp.model;
您的型号名称,即Evento

在这之后
清理您的项目并重新运行spring boot应用程序;

关于java - Spring Boot Whitelabel错误页面(类型=未找到,状态= 404),我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/49034254/

10-10 04:20