我在Spring Boot中还比较新,试图构建一个简单的web应用程序。我定义了一个包含url映射的控制器类,但是在浏览器上它会给出一个白标签页错误(404)。我无法理解为什么它不能进行映射。我已经尝试更改我的组件扫描基础包,但它仍然无法将我重定向到页面"abc"或在控制台中打印"in controller"。
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>bms</groupId>
<artifactId>com.wellmanage.bms</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>BMS</name>
<description>Demo project for Spring Boot</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.3.5.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</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>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
控制器类
package com.wellmanage.controller;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
@Controller
public class BookController {
@RequestMapping("/")
public String hello() {
System.out.println("in controller");
return "abc";
}
}
主类
package com.wellmanage.bms;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class BmsApplication {
public static void main(String[] args) {
SpringApplication.run(BmsApplication.class, args);
}
}
@RestController
而不是@Controller
。 - Eric