java - Spring Boot控制器不返回jsp页面
问题描述
编辑:下面是 LatherupApplication 应用程序类:
package latherup.com.latherup;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.web.servlet.support.SpringBootServletInitializer;
@SpringBootApplication(scanBasePackages = "latherup.com")
public class LatherupApplication extends SpringBootServletInitializer{
@Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder builder) {
return builder.sources(LatherupApplication.class);
}
public static void main(String[] args) {
SpringApplication.run(LatherupApplication.class, args);
}
}
下面是我的家庭控制器:
package latherup.com.latherup;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
@Controller
@RequestMapping("/home")
public class HomeController {
@GetMapping("/home")
public String navigateToHomePage() {
return "home.jsp";
}
}
下面是 pom.xml 文件:
<?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>2.4.5</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>latherup.com</groupId>
<artifactId>latherup</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>latherup</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>11</java.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.release>13</maven.compiler.release>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</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>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.webjars</groupId>
<artifactId>bootstrap</artifactId>
<version>5.0.0</version>
</dependency>
<dependency>
<groupId>org.webjars</groupId>
<artifactId>bootstrap-datepicker</artifactId>
<version>1.0.1</version>
</dependency>
<dependency>
<groupId>org.webjars</groupId>
<artifactId>jquery</artifactId>
<version>3.6.0</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-jasper</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<scope>provided</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.tomcat/tomcat-jasper -->
</dependencies>
<build>
<!--plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins-->
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.1</version>
</plugin>
</plugins>
</pluginManagement>
</build>
</project>
下面是 home.jsp :
<html>
<head>
<title>Welcome</title>
<link href="webjars/bootstrap/3.3.6/css/bootstrap.min.css"
rel="stylesheet">
</head>
<body>
<div class="container">
<table class="table table-striped">
<caption>Your todos are</caption>
<thead>
<tr>
<th>Description</th>
<th>Target Date</th>
<th>Is it Done?</th>
<th>Edit</th>
<th>Delete</th>
</tr>
</thead>
<tbody>
<tr>
<td>Todo 1</td>
<td>10/12/2017</td>
<td>No</td>
<td><a class="btn btn-warning" href="/edit-todo">Edit Todo</a></td>
<td><a class="btn btn-warning" href="/delete-todo">Delete Todo</a></td>
</tr>
</tbody>
</table>
<div>
<a class="btn btn-default" href="/add-todo">Add a Todo</a>
</div>
<script src="webjars/jquery/1.9.1/jquery.min.js"></script>
<script src="webjars/bootstrap/3.3.6/js/bootstrap.min.js"></script>
</div>
</body>
</html>
控制器返回字符串“home.jsp”而不是页面。我已经添加了所有依赖项,但不确定是什么问题。是依赖版本的问题吗?如果是,我该如何决定如何选择相互兼容的版本。我一直面临这个问题。有时它有效,有时则无效。请指导我,因为我是初学者。
编辑: 下面是项目结构的图像:
应用程序属性:
spring.mvc.view.prefix=/LATHER-UP/jsp/
spring.mvc.view.suffix=.jsp
logging.level.org.springframework.web=INFO
解决方案
你已经定义了spring.mvc.view.suffix = .jsp
所以你的控制器不应该home
返回home.jsp
@Controller
@RequestMapping("/home")
public class HomeController {
@GetMapping("/home")
public String navigateToHomePage() {
return "home";
}
}
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