Question

您好我是Spring的新手，我在尝试使用弹簧启动时收到404错误。当试图在浏览器中查看URL时，我一直收到404错误。请有人帮助并指出我的错误。我在控制器中放置了一个调试器来打印HH但我发现它从未进入控制器，因为它无法在控制台上打印“HH”。我也从控制台注意到了这一点：

:50.894  INFO 11249 --- [lication.main()] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error]}" onto public org.springframework.http.ResponseEntity<java.util.Map<java.lang.String, java.lang.Object>> org.springframework.boot.autoconfigure.web.BasicErrorController.error(javax.servlet.http.HttpServletRequest)
2015-11-15 07:11:50.894  INFO 11249 --- [lication.main()] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error],produces=[text/html]}" onto public org.springframework.web.servlet.ModelAndView org.springframework.

以下是我的控制器：

@RestController
public class TestController {

    @RequestMapping(value="/person")
    public String intro(){
        System.out.println("HH");
        return "index";
    }
}

的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>org.springExample.www</groupId>
    <artifactId>Hotel-Management</artifactId>
    <version>1.0-SNAPSHOT</version>
    <packaging>jar</packaging>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.2.7.RELEASE</version>
    </parent>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-thymeleaf</artifactId>
        </dependency>
    </dependencies>

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


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

MainApplication.java：

@SpringBootApplication
public class MainApplication {

    public static void main(String[] args) {

            SpringApplication.run(MainApplication.class, args);
    }
}

index.html在src / main / resources / templates中定义：

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initialscale=1">
    <title>Bootstrap 101 Template</title>

    <!-- Bootstrap -->
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css" integrity="sha512-dTfge/zgoMYpP7QbHy4gWMEGsbsdZeCXz7irItjcC3sPUFtf0kuFbDz/ixG7ArTxmDjLXDmezHubeNikyKGVyQ==" crossorigin="anonymous">

    <!-- HTML5 Shim and Respond.js IE8 support of HTML5
   elements and media queries -->
    <!-- WARNING: Respond.js doesn't work if you view the
   page via file:// -->
    <!--[if lt IE 9]>
    <script src="https://oss.maxcdn.com/libs/html5shiv/
3.7.0/html5shiv.js"></script>
    <script src="https://oss.maxcdn.com/libs/respond.js/
1.4.2/respond.min.js"></script>
    <![endif]-->

    <style>

        .box {

            background-color:#d3d3d3

        }

    </style>
</head>
<body>
<h1>Hello, world!</h1>

<div class="container">

    <div class="row">

        <div class="col-md-6 box">Content</div>

        <div class="col-md-6 box">Content</div>

    </div>


</div>

<!-- jQuery (necessary for Bootstrap's JavaScript plugins) -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.0/
jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js" integrity="sha512-K1qjQ+NcF2TYO/eI3M6v8EiNYZfA95pQumfvcVrTHtwQVDG+aHRqLi/ETn2uB+1JqwYqVG3LIvdm9lj6imS/pQ==" crossorigin="anonymous"></script>
</body>
</html>

Answer 1

有几点需要注意：

使用@Controller而不是@RestController。第一个用于处理视图，第二个用于返回原始数据。
将观看次数移至src/main/java/webapp/WEB-INF/。这是视图的传统位置，而不是/src/main/resources。
将intro()方法的返回值从index更改为templates/index。视图的整个路径很重要。
添加一个注释了@Configuration的类，该类定义了一个ViewResolver bean，用于查找.html个视图（请参阅this answer）。

接收404运行的弹簧靴

1 个答案: