springboot入门级学习

短命女 2021-09-18 07:40 266阅读 0赞

颓废良久，最近想尝试点没接触过的技术。springboot简化了传统spring的工作量，可自由结合第三方框架。实用性极强。

本工程采用maven工程，springboot、mybatis、mysql、thymeleaf模板。

1、目录结构：

![70][]

2、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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    	<modelVersion>4.0.0</modelVersion>
    
    	<groupId>com.wlg</groupId>
    	<artifactId>action</artifactId>
    	<version>0.0.1-SNAPSHOT</version>
    	<packaging>jar</packaging>
    
    	<name>action</name>
    	<description>Demo project for Spring Boot</description>
    
    	<parent>
    		<groupId>org.springframework.boot</groupId>
    		<artifactId>spring-boot-starter-parent</artifactId>
    		<version>2.0.3.RELEASE</version>
    		<relativePath/> 
    	</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.mybatis.spring.boot</groupId>
    			<artifactId>mybatis-spring-boot-starter</artifactId>
    			<version>1.3.2</version>
    		</dependency>
    
    		<dependency>
    			<groupId>mysql</groupId>
    			<artifactId>mysql-connector-java</artifactId>
    			<scope>runtime</scope>
    		</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>
    
    	<build>
    		<plugins>
    			<plugin>
    				<groupId>org.springframework.boot</groupId>
    				<artifactId>spring-boot-maven-plugin</artifactId>
    			</plugin>
    		</plugins>
    	</build>
    
    </project>

3、application.properties文件

# mysql 数据库相关配置
    # *********************************************
    spring.datasource.url = jdbc:mysql://localhost:3306/wlg
    spring.datasource.username = root
    spring.datasource.password = 123456
    spring.datasource.driver-class-name = com.mysql.jdbc.Driver
    spring.datasource.tomcat.max-active = 20
    spring.datasource.dbcp2.max-idle = 8
    spring.datasource.dbcp2.min-idle = 8
    spring.datasource.dbcp2.initial-size = 10
    
    #mybatis
    #***********************************************
    mybatis.mapper-locations = classpath*:com.wlg.action.mapper/*Mapper.xml
    mybatis.type-aliases-package = com.wlg.action.dao
    
    #tomcat
    #***********************************************
    server.servlet.context-path = /wlg
    server.port = 8080
    spring.mvc.static-path-pattern = /**
    spring.resources.static-locations = classpath:/static/
    #spring.thymeleaf.prefix= classpath:/templates/
    spring.thymeleaf.cache = false
    #jsp 模板
    #spring.mvc.view.prefix = views/
    #spring.mvc.view.suffix = .html
    #thymeleaf 模板
    spring.thymeleaf.prefix = classpath:/templates/views/
    spring.thymeleaf.suffix = .html
    #log
    #***********************************************
    logging.file = /log.log
    logging.level.org.org.springframework.web = debug

4、控制台打印效果，图案可配置banner.txt;

![70 1][]

5.页面及效果。

<!DOCTYPE html>
    <html xmlns:th="http://www.thymeleaf.org">
    <head>
    <meta charset="UTF-8">
    <title>Insert title here</title>
    </head>
    <body>
    <p th:text="'hello--------------'+${name}+'!'" >
    <a href="www.baidu.com">百度</a>
    </body>
    </html>

![70 2][]

总体来说，还是建议大家使用jsp页面，毕竟传统用起来熟悉。html+thymeleaf页面在不熟悉的情况下不建议使用。

[70]: /images/20210918/c1feaa7aa7544c8a939463f799c0fcb4.png
[70 1]: /images/20210918/1cc18b7736a84c17a3430361cfbf62d8.png
[70 2]: /images/20210918/f75947a676884ca4afb1fff0aa653b1b.png