基於spring boot 的ssm項目的簡單配置

我前面的帖子有介紹spring boot的簡單搭建，如今我再講講spring boot的簡單配置

首先，項目結構

啓動類

@RestController    註解至關於@ResponseBody ＋ @Controller合在一塊兒的做用。
@SpringBootApplication     項目建立默認的註解，解釋的話有點多直接貼網址你們本身進去了解   https://blog.csdn.net/dyangel2013/article/details/79775122    
@EnableAutoConfiguration     詳細的本身去了解一下   https://blog.csdn.net/zxc123e/article/details/80222967

package com.example;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
@SpringBootApplication
@EnableAutoConfiguration
public class BaiduditudemoApplication {
	
	
	public static void main(String[] args) {
		SpringApplication.run(BaiduditudemoApplication.class, args);
	}
}

pojo包下不須要什麼註解

我卻是瞭解到如今能夠加入

@Getter
@Setter
@ToString

能夠讓你省略掉冗餘的get  set 方法和toString方法

 

mapper包下是接口和mapper文件

接口依然不須要什麼註解，mapper文件中須要注意的有一點

1中是對應的接口位置

2中對應pojo實體類

service包下的結構

接口依然沒有什麼註解，service的實現類須要加入@service註解

也能夠加上@Transactional事務處理的註解，事務處理在啓動類也能夠用另外一個註解加入

 

這是application.properties裏的配置

spring.datasource.url=jdbc:mysql://localhost:3306/mpms
spring.datasource.username=root
spring.datasource.password=123
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.jpa.database=mysql

最後就是pom文件了，固然pom文件確定不是最後才配置的，我只是放在最後說

<?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>
	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>2.1.3.RELEASE</version>
		<relativePath /> <!-- lookup parent from repository -->
	</parent>
	<groupId>com.example</groupId>
	<artifactId>baiduditudemo</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<name>baiduditudemo</name>
	<description>Demo project for Spring Boot</description>

	<properties>
		<java.version>1.8</java.version>
	</properties>

	<dependencies>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-aop</artifactId>
		</dependency>
		<dependency>
			<groupId>mysql</groupId>
			<artifactId>mysql-connector-java</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-jdbc</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-web</artifactId>
		</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.mybatis.spring.boot</groupId>
			<artifactId>mybatis-spring-boot-starter</artifactId>
			<version>1.1.1</version>
		</dependency>
		<!-- http -->
		<!-- https://mvnrepository.com/artifact/org.apache.httpcomponents/httpcore -->
		<dependency>
			<groupId>org.apache.httpcomponents</groupId>
			<artifactId>httpcore</artifactId>
			<version>4.4.10</version>
		</dependency>

		<!-- https://mvnrepository.com/artifact/org.apache.httpcomponents/httpclient -->
		<dependency>
			<groupId>org.apache.httpcomponents</groupId>
			<artifactId>httpclient</artifactId>
			<version>4.5.6</version>
		</dependency>
	</dependencies>

	<build>
		<plugins>
			<plugin>
				<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
			</plugin>
		</plugins>
	</build>


</project>

不少註解我也不是很深刻的理解，目前只能說是可以運用，你們多多諒解不能詳細給你們解釋