IntelliJ IDEA 快速创建基于Spring Boot的web项目

1、直接选择Spring Initializr项目点击【next】

2、直接【next】

3、选择Web-->web直接【next】

4、Finish

5、项目创建完成，项目结构

6、写个Controller启动一下看是否可以访问，可以打个断点进行测试

此时页面显示，需要导入jsp包

7、pom.xml文件中导入jar包。

导入jar

org.apache.tomcat.embed tomcat-embed-jasper provided

在创建jsp页面之前先创建webapp和WEB-INF文件夹：File-->Project Structure-->Modules-->Web,指定目录

创建WEB-INF文件夹

7、创建web.xml

8、此时项目目录结构

9、配置jsp文件存放目录在application.properties文件中

spring.mvc.view.prefix=/WEB-INF/ spring.mvc.view.suffix=.jsp

9、创建indexPage.jsp文件在WEB-INF目录下

10、重启我们的项目，直接访问：http://localhost:8080/demo/indexPage

11、问题

出现此种问题是配置文件没有配正确:

Whitelabel Error Page This application has no explicit mapping for /error, so you are seeing this as a fallback. Tue Oct 30 16:45:05 CST 2018 There was an unexpected error (type=Internal Server Error, status=500). Circular view path [indexPage]: would dispatch back to the current handler URL [/demo/indexPage] again. Check your ViewResolver setup! (Hint: This may be the result of an unspecified view, due to default view name generation.)

出现此种问题是jar包没有配置正确：

Whitelabel Error Page This application has no explicit mapping for /error, so you are seeing this as a fallback. Tue Oct 30 16:48:43 CST 2018 There was an unexpected error (type=Not Found, status=404). No message available

pom.xml文件

4.0.0 com.example demo 0.0.1-SNAPSHOT jar demo Demo project for Spring Boot org.springframework.boot spring-boot-starter-parent 2.0.6.RELEASE UTF-8 UTF-8 1.8 org.springframework.boot spring-boot-starter-web org.apache.tomcat.embed tomcat-embed-jasper provided org.springframework.boot spring-boot-starter-test test org.springframework.boot spring-boot-maven-plugin