Spring Boot框架搭建与学习 1.搭建项目、自动生成Mapper

╰半橙微兮° 2022-03-09 15:17 112阅读 0赞

Spring Boot版本为1.5

## 第一节 ##

1.spring boot解决了问题（优点）：xml配置简化、编码、监听功能变强

## 第二节 ##

springboot与springcloud的java版本使用1.8，依赖关系：[https://blog.csdn.net/qq\_16946803/article/details/87886851][https_blog.csdn.net_qq_16946803_article_details_87886851]

1.介绍springboot结构

2.创建一个http请求

@RestController

3.springboot模板创建方法（三种）

## 第三节 spring的配置 ##

1.tomcat端口配置：server.port=8080

2.自定义（获取配置文件中的常量）：agan.msg=123  ←xml中配置

![20190313142021930.png][]

3.定义变量：agan.hello=123

![20190313142021972.png][]

![2019031314202238.png][]

4.随机变量：

![2019031314202256.png][]![2019031314202296.png][]

5.yml （配置文件的语言）

如server:

port: 8080

注：要注释一个文件，在文件后面添加  -temp

![2019031314202292.png][]

6.logback日志配置

## 第四节 多环境的配置（开发环境、部署环境、） ##

1.创建开发环境与测试环境

![2019031314202259.png][]

内部内容：

![2019031314202236.png][]

2.编译：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzE2OTQ2ODAz_size_16_color_FFFFFF_t_70][]

2.这个jar是编译出来的

![2019031314202298.png][]

3.cmd → 到目标文件中 → 执行:java -jar 目标文件名.后缀名 --spring.profiles.active-环境名

![2019031314202234.png][]

## 第五节 springboot核心注解 ##

![20190313142022128.png][]

## 第六节 springboot的异常处理 ##

1.@controllerAdvice

@ResponseBody

@ExceptionHandler(value=Exception.class)

全局捕获异常类：只在@RequestMapping中使用

定义：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzE2OTQ2ODAz_size_16_color_FFFFFF_t_70 1][]

实现：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzE2OTQ2ODAz_size_16_color_FFFFFF_t_70 2][]

效果：

![20190313142022130.png][]

2.业务异常

声明：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzE2OTQ2ODAz_size_16_color_FFFFFF_t_70 3][]

实现：

![20190313142022176.png][]

效果：

![20190313142022196.png][]

## 第七节 actuator检测与监控spring boot的健康 ##

在pom中添加jar包，启动tomcat后可以看到日志文件

<groupId>org.springframework.boot</groupId>

<artifactId>spring-boot-starter-actuator</artifactId>

<version>1.5.19.RELEASE</version>

</dependency>

## 第八节 spring boot admin——可视化监控报表 ##

可参考：  [https://www.jianshu.com/p/2b66433bd373][https_www.jianshu.com_p_2b66433bd373]

**服务端**

1.创建boot服务端项目，添加actuator

2.下载spring-boot-admin需要的jar包

在https://github.com/中下载，搜索：spring boot admin

![20190313142022188.png][]

下载：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzE2OTQ2ODAz_size_16_color_FFFFFF_t_70 4][]

配置

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzE2OTQ2ODAz_size_16_color_FFFFFF_t_70 5][]

1.5.4的jar包

<groupId>de.codecentric</groupId>

<artifactId>spring-boot-admin-server</artifactId>

</dependency>

<groupId>de.codecentric</groupId>

<artifactId>spring-boot-admin-server-ui</artifactId>

</dependency>

3.启动服务端tomcat

**客户端**

1.创建boot客户端项目，添加web包

2.pom中添加spring-boot-admin-starter-client需要的jar包——github教程中有说明

<groupId>de.codecentric</groupId>

<artifactId>spring-boot-admin-starter-client</artifactId>

</dependency>

配置服务端：spring.boot.admin.url:http://localhost:8090

异常情况处理参考：https://blog.csdn.net/fly910905/article/details/78580895

3.启动客户端tomcat

服务端最终展示：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzE2OTQ2ODAz_size_16_color_FFFFFF_t_70 6][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzE2OTQ2ODAz_size_16_color_FFFFFF_t_70 7][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzE2OTQ2ODAz_size_16_color_FFFFFF_t_70 8][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzE2OTQ2ODAz_size_16_color_FFFFFF_t_70 9][]

[https_blog.csdn.net_qq_16946803_article_details_87886851]: https://blog.csdn.net/qq_16946803/article/details/87886851
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[2019031314202256.png]: https://img-blog.csdnimg.cn/2019031314202256.png
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[20190313142022196.png]: /images/20220309/4d752aa4d6d945cb8b3ffc748f2acd27.png
[https_www.jianshu.com_p_2b66433bd373]: https://www.jianshu.com/p/2b66433bd373
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