我试图从2天开始运行一个简单的Spring启动应用程序,但仍然无法使其工作 . 我检查了所有相关的问题和博客,但仍然存在问题 .
我的项目结构如下所示 .
的pom.xml
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.5.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-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
</dependency>
</dependencies>
WebApplication.java
@SpringBootApplication
public class WebApplication extends SpringBootServletInitializer{
@Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder builder) {
return builder.sources(WebApplication.class);
}
public static void main(String[] args) {
SpringApplication.run(WebApplication.class, args);
}
}
Application.properties
server.servlet.context-path=/EBS-web
spring.mvc.view.prefix=/WEB-INF/jsp/
spring.mvc.view.suffix=.jsp
logging.level.org.springframework.web=DEBUG
的LoginController
@Controller
public class LoginController {
@RequestMapping(path="/")
public String login() {
System.out.println("******************logging************************");
return "login";
}
}
Login.jsp页面
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
Hi Login
</body>
</html>
每当我尝试将应用程序作为Spring Boot App(Eclipse的STS插件)运行并访问http://localhost:8080/EBS-web/时,它会在UI上显示以下错误消息
Whitelabel错误页面此应用程序没有/ error的显式映射,因此您将此视为回退 . Sun Sep 23 17:34:52 IST 2018出现意外错误(type = Not Found,status = 404) . 没有消息可用
从下面的堆栈跟踪中,我可以看到spring能够获取处理程序方法但无法找到关联的视图 .
2018-09-23 17:44:12.248 DEBUG 14728 --- [nio-8080-exec-2] osweb.servlet.DispatcherServlet:[/ EBS-web /]的Last-Modified值为:-1 ** 记录******** 2018-09-23 17:44: 12.258 DEBUG 14728 --- [nio-8080-exec-2] oswsvContentNegotiatingViewResolver:请求的媒体类型是[text / html,application / xhtml xml,image / webp,image / apng,application / xml; q = 0.9,/; q = 0.8]基于Accept头类型和可生成的媒体类型[/])2018-09-23 17:44:12.258 DEBUG 14728 --- [nio-8080-exec-2] oswservlet.view.BeanNameViewResolver:无匹配为视图名称'login'找到的bean 2018-09-23 17:44:12.260 DEBUG 14728 --- [nio-8080-exec-2] oswsvContentNegotiatingViewResolver:返回[org.springframework.web.servlet.view.JstlView:name '登录'; URL [/WEB-INF/jsp/login.jsp]]基于请求的媒体类型'text / html'2018-09-23 17:44:12.260 DEBUG 14728 --- [nio-8080-exec-2] osweb .servlet.DispatcherServlet:渲染视图[org.springframework.web.servlet.view.JstlView:name'login'; DispatcherServlet中的URL [/WEB-INF/jsp/login.jsp]],名称为“dispatcherServlet”2018-09-23 17:44:12.264 DEBUG 14728 --- [nio-8080-exec-2] osweb.servlet . view.JstlView:转发到InternalResourceView'login'中的资源[/WEB-INF/jsp/login.jsp] 2018-09-23 17:44:12.266 DEBUG 14728 --- [nio-8080-exec-2] osweb .servlet.DispatcherServlet:名为'dispatcherServlet'的DispatcherServlet处理[/EBS-web/WEB-INF/jsp/login.jsp]的GET请求2018-09-23 17:44:12.267 DEBUG 14728 --- [nio-8080 -exec-2] swsmmaRequestMappingHandlerMapping:查找路径/WEB-INF/jsp/login.jsp的处理程序方法2018-09-23 17:44:12.268 DEBUG 14728 --- [nio-8080-exec-2] swsmmaRequestMappingHandlerMapping :找不到[/WEB-INF/jsp/login.jsp]的处理程序方法2018-09-23 17:44:12.268 DEBUG 14728 --- [nio-8080-exec-2] oswshandler.SimpleUrlHandlerMapping:匹配模式请求[/WEB-INF/jsp/login.jsp]是[/ **]
1 回答
请在控制器中定义方法:您可以定义
@RequestMapping(value = "/", method = RequestMethod.GET)
,也可以直接使用@GetMapping你的pom中可能会有更多的冲突,比如不需要添加tomcat依赖,因为它已经嵌入,因此可以删除 .
To enable support for JSP’s, add a dependency on tomcat-embed-jasper.
并且2.x版本之后无需延长
SpringBootServletInitializer
所以下面应该足以启动 .