首页 博客列表 精选博客 每日焦点 关于我
再谈 SpringBoot
发布日期：2021-05-04 03:56:00 浏览次数：28 分类：原创文章

本文共 10771 字，大约阅读时间需要 35 分钟。

Spring Boot 前传：

一、Spring Boot 初识：

二、再谈Spring Boot：

三、Spring Boot Controller使用：

 

Spring Boot：

一、Spring Boot入门：

二、Spring Boot配置：

三、Spring Boot与日志

四、Spring Boot与web开发

五、Spring Boot与Docker

六、Spring Boot与数据访问

七、Spring Boot启动配置原理

八、Spring Boot自定义starters

九、Spring Boot与缓存

十、Spring Boot与消息

十一、Spring Boot与检索

十二、Spring Boot与任务

十三、Spring Boot与安全

十四、Spring Boot与分布式

十五、Spring Boot与开发热部署

十六、Spring Boot与监控管理

1.SpringBoot是什么？

 

Spring Boot是由Pivotal团队提供的全新框架(下一代框架)，其设计目的是用来简化新Spring应用的初始搭建以及开发过程

2.SpringBoot的优点

 

2.1 对比传统的SSM

 

配置web.xml，加载spring和spring mvc

配置数据库连接、配置spring事务

配置加载配置文件的读取，开启注解

配置日志文件

配置其他很多的东西

.........................

 

2.2 SpringBoot的设计思想

 

约定优先于配置

 

3.SpringBoot与SpringMVC和Spring的区别

 

Spring 开发是需要很多的配置文件的,Spring Boot把许多的通用配置进行了封装,不需要重新配置,只有在做一些个性化的开发时才会进行额外的配置(约定优先于配置)

Spring Mvc开发的应用程序依赖于Tomcat

Spring Boot内嵌了Tomcat,用户无需安装Tomcat,直接运行.jar文件即可

 

4.SpringBoot 解决的问题

 

Spring Boot使编码变简单

Spring Boot使配置变简单

Spring Boot使部署变简单

Spring Boot使监控变简单

微服务

 

5.SpringBoot开发

 

5.1 创建SpringBoot项目

 

创建普通Maven项目即可

 

5.2 导入依赖 

<parent>    <groupId>org.springframework.boot</groupId>    <artifactId>spring-boot-starter-parent</artifactId>    <version>1.5.9.RELEASE</version></parent><dependencies>     <!--开发web项目的依赖-->    <dependency>        <groupId>org.springframework.boot</groupId>        <artifactId>spring-boot-starter-web</artifactId>    </dependency></dependencies>

 

5.3建立目录结构

 

 

5.4创建 UserController

package com.ma.springboot.controller;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.GetMapping;@Controllerpublic class UserContrpller {@GetMapping("/findUserById")public String findUserById(){System.out.println("findUserById......");return "index.html";}}

 

5.5创建启动类


 

package com.ma.springboot;import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.SpringBootApplication;@SpringBootApplicationpublic class Application {public static void main(String[] args) {//启动Spring应用SpringApplication.run(Application.class,args);}}

5.6配置资料

 

 

 

application.properties

 

server.port=8088

 


5.7 index.html

<!DOCTYPE html><html lang="en"><head><meta charset="UTF-8"><title></title></head><body>index.jsp</body></html>

 

5.8运行程序


 

  .   ____          _            __ _ _/\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \\\/  ___)| |_)| | | | | || (_| |  ) ) ) )  '  |____| .__|_| |_|_| |_\__, | / / / /=========|_|==============|___/=/_/_/_/:: Spring Boot ::        (v2.0.2.RELEASE)2018-08-29 20:57:17.788  INFO 12760 --- [           main] com.ma.springboot.Application            : Starting Application on 马越的电脑 with PID 12760 (C:\Users\lenovo\IdeaProjects\girl\target\classes started by lenovo in C:\Users\lenovo\IdeaProjects\girl)2018-08-29 20:57:17.871  INFO 12760 --- [           main] com.ma.springboot.Application            : No active profile set, falling back to default profiles: default2018-08-29 20:57:18.246  INFO 12760 --- [           main] ConfigServletWebServerApplicationContext : Refreshing org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext@214b199c: startup date [Wed Aug 29 20:57:18 CST 2018]; root of context hierarchy2018-08-29 20:57:22.572  INFO 12760 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat initialized with port(s): 8088 (http)2018-08-29 20:57:22.679  INFO 12760 --- [           main] o.apache.catalina.core.StandardService   : Starting service [Tomcat]2018-08-29 20:57:22.680  INFO 12760 --- [           main] org.apache.catalina.core.StandardEngine  : Starting Servlet Engine: Apache Tomcat/8.5.312018-08-29 20:57:22.691  INFO 12760 --- [ost-startStop-1] o.a.catalina.core.AprLifecycleListener   : The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: [C:\Program Files\Java\jdk1.8.0_91\bin;C:\WINDOWS\Sun\Java\bin;C:\WINDOWS\system32;C:\WINDOWS;C:\Program Files\Java\jdk1.8.0_91\bin;C:\ProgramData\Oracle\Java\JAVA_HOME;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\Program Files (x86)\ATI Technologies\ATI.ACE\Core-Static;C:\Program Files\MySQL\MySQL Server 5.5\bin;D:\program\apache-maven-3.5.3\bin;D:\program\apache-tomcat-7.0.88\lib;D:\program\apache-tomcat-7.0.88\bin;;C:\WINDOWS\System32\OpenSSH\;C:\Program Files\TortoiseSVN\bin;D:\program\SlikSvn\bin;C:\Users\lenovo\AppData\Local\Microsoft\WindowsApps;;.]2018-08-29 20:57:23.167  INFO 12760 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext2018-08-29 20:57:23.167  INFO 12760 --- [ost-startStop-1] o.s.web.context.ContextLoader            : Root WebApplicationContext: initialization completed in 4980 ms2018-08-29 20:57:23.604  INFO 12760 --- [ost-startStop-1] o.s.b.w.servlet.ServletRegistrationBean  : Servlet dispatcherServlet mapped to [/]2018-08-29 20:57:23.614  INFO 12760 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'characterEncodingFilter' to: [/*]2018-08-29 20:57:23.615  INFO 12760 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'hiddenHttpMethodFilter' to: [/*]2018-08-29 20:57:23.616  INFO 12760 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'httpPutFormContentFilter' to: [/*]2018-08-29 20:57:23.616  INFO 12760 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'requestContextFilter' to: [/*]2018-08-29 20:57:23.997  INFO 12760 --- [           main] o.s.w.s.handler.SimpleUrlHandlerMapping  : Mapped URL path [/**/favicon.ico] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]2018-08-29 20:57:24.643  INFO 12760 --- [           main] s.w.s.m.m.a.RequestMappingHandlerAdapter : Looking for @ControllerAdvice: org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext@214b199c: startup date [Wed Aug 29 20:57:18 CST 2018]; root of context hierarchy2018-08-29 20:57:24.769  INFO 12760 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/findUserById],methods=[GET]}" onto public java.lang.String com.ma.springboot.controller.UserContrpller.findUserById()2018-08-29 20:57:24.780  INFO 12760 --- [           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.servlet.error.BasicErrorController.error(javax.servlet.http.HttpServletRequest)2018-08-29 20:57:24.781  INFO 12760 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error],produces=[text/html]}" onto public org.springframework.web.servlet.ModelAndView org.springframework.boot.autoconfigure.web.servlet.error.BasicErrorController.errorHtml(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse)2018-08-29 20:57:24.836  INFO 12760 --- [           main] o.s.w.s.handler.SimpleUrlHandlerMapping  : Mapped URL path [/webjars/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]2018-08-29 20:57:24.837  INFO 12760 --- [           main] o.s.w.s.handler.SimpleUrlHandlerMapping  : Mapped URL path [/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]2018-08-29 20:57:25.318  INFO 12760 --- [           main] o.s.j.e.a.AnnotationMBeanExporter        : Registering beans for JMX exposure on startup2018-08-29 20:57:25.424  INFO 12760 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat started on port(s): 8088 (http) with context path ''2018-08-29 20:57:25.435  INFO 12760 --- [           main] com.ma.springboot.Application            : Started Application in 9.05 seconds (JVM running for 14.495)2018-08-29 20:57:39.053  INFO 12760 --- [nio-8088-exec-1] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring FrameworkServlet 'dispatcherServlet'2018-08-29 20:57:39.054  INFO 12760 --- [nio-8088-exec-1] o.s.web.servlet.DispatcherServlet        : FrameworkServlet 'dispatcherServlet': initialization started2018-08-29 20:57:39.105  INFO 12760 --- [nio-8088-exec-1] o.s.web.servlet.DispatcherServlet        : FrameworkServlet 'dispatcherServlet': initialization completed in 51 msfindUserById......

 

 

 

6.SpringBoot的热部署

 

6.1pom依赖


 

<!--spring boot热部署的插件--><dependency>    <groupId>org.springframework.boot</groupId>    <artifactId>spring-boot-devtools</artifactId>    <optional>true</optional></dependency>


6.2修改properties

 

spring.thymeleaf.cache=false

 


6.3修改IDEA自动编译Java

 

file--->other settings--->default settings---->Build--->compiler--->build project autoxxxx(勾选)

 

6.4修改idea运行中的自动编译

 

help--->find action--->Registry--->compiler.automake.allow.when.app.running(勾选)

 

7.SpringBoot中的单元测试

 

7.1 pom依赖

 

<dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId></dependency><dependency><groupId>junit</groupId><artifactId>junit</artifactId><scope>test</scope></dependency>

7.1 User类

package com.ma.springboot.pojo;public class User {private Integer id;private String name;private Integer age;public Integer getId() {return id;}public void setId(Integer id) {this.id = id;}public String getName() {return name;}public void setName(String name) {this.name = name;}public Integer getAge() {return age;}public void setAge(Integer age) {this.age = age;}@Overridepublic String toString() {return "User{" +"id=" + id +", name='" + name + '\'' +", age=" + age +'}';}}

 

7.2 UserService类


 

package com.ma.springboot.service;import com.ma.springboot.pojo.User;import com.ma.springboot.dao.UserDao;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Service;@Servicepublic class UserService {@Autowiredprivate UserDao userDao;public User findUserById(Integer id){return userDao.findUserById(id);}}

7.3 UserDao类


 

package com.ma.springboot.dao;import com.ma.springboot.pojo.User;import org.springframework.stereotype.Repository;@Repositorypublic class UserDao {public User findUserById(Integer id){User user = new User();user.setId(id);user.setName("张三");user.setAge(20);return user;}}

7.4 UserServiceTest类

package com.ma.springboot.service;import com.ma.springboot.pojo.User;import org.junit.Test;import org.junit.runner.RunWith;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.boot.test.context.SpringBootTest;import org.springframework.test.context.junit4.SpringRunner;@RunWith(SpringRunner.class)@SpringBootTestpublic class UserServiceTest {@AutowiredUserService userService;@Testpublic void testFindUserById(){User user = userService.findUserById(2);System.out.println(user);}}

 

7.5 运行结果

 

上一篇：一切为了好玩（Just For Fun）
下一篇：八大排序总结

发表评论

最新留言

初次前来，多多关照！
[***.217.46.12]2025年03月24日 12时49分29秒

关于作者

    喝酒易醉，品茶养心，人生如梦，品茶悟道，何以解忧？唯有杜康！
-- 愿君每日到此一游！

推荐文章

github学习 2019-03-04
PowerMock框架学习 2019-03-04
JAVA初窥-DAY07 2019-03-04
SpringMVC框架学习（十三）——全局异常处理 2019-03-04
JAVA初窥-DAY13 2019-03-04
Spring Boot （五）——配置自己的banner 2019-03-04
数组--Go语言学习笔记 2019-03-04
Spring Boot （二十一）——自定义异常处理 2019-03-04
线程池-----ScheduledExecutorService实现定时任务 2019-03-04
ScheduledExecutorService 一个定长线程池，支持定时及周期性任务执行 2019-03-04
Redis （三）——Linux 上安装 Redis 2019-03-04
Redis踩坑（1）-----配置文件redis.conf修改后不生效问题 2019-03-04
Linux启动Nginx后访问虚拟机的ip时会出现链接不上的问题 2019-03-04
Vue学习（四十五）——Element-UI 2019-03-04
Docker教程（二）——Docker的安装及配置加速器 2019-03-04
MyBatis(二)——MyBatis入门实例 2019-03-04
Redis 缓存击穿 2019-03-04
从零带你学习Go语言：21、 Go关键词goroutine和channel 2019-03-04
从零带你学习Go语言：23、 Go指针 、切片、 map、 结构体复习 2019-03-04
从零带你学习Go语言：22、 Go基础 、包、变量和函数、流程控制语句复习 2019-03-04
白红宇的个人博客 - 记录点点滴滴的事 - 您是第 454320028 位访客
访问时间: 2025-04-10 13:47:05 访问IP: 3.143.5.121     Copyright © 2020 - 2025 css8.cn 京ICP备2021015314号-1 手机版