手动创建SpringBoot项目

Idea创建SpringBoot项目2种方式

1.Spring Initializr
2.Maven

Spring Initializr特点：

1.创建方便快捷
2.有时候Initializr服务不可用，创建会失败
3.傻瓜式配置，开发者不清楚创建的过程与配置
4.创建时不能控制版本

Maven特点：

1.创建目方便灵活
2.所有配置都需要自己添加
3.有利于熟悉配置的详情

基于以上特点分析，做手动创建SpringBoot项目实录

1.创建maven项目

2.pom文件配置parent节点

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>2.2.5.RELEASE</version>
</parent>

3.pom文件配置properties

<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <java.version>1.8</java.version>
</properties>

4.pom文件配置国内maven仓库

<repositories>
        <repository>
            <id>alimaven1</id>
            <name>aliyun maven 1</name>
            <url>http://maven.aliyun.com/nexus/content/repositories/central/</url>
        </repository>
        <repository>
            <id>alimaven2</id>
            <name>aliyun maven 2</name>
            <url>http://maven.aliyun.com/nexus/content/groups/public/</url>
        </repository>
        <repository>
            <id>central1</id>
            <name>Central Repository 1</name>
            <url>http://repo1.maven.apache.org/maven2/</url>
        </repository>
        <repository>
            <id>central2</id>
            <name>Central Repository 2</name>
            <url>http://repo2.maven.apache.org/maven2/</url>
        </repository>
        <repository>
            <id>spring-snapshots</id>
            <url>http://repo.spring.io/snapshot</url>
            <snapshots>
                <enabled>true</enabled>
            </snapshots>
        </repository>
        <repository>
            <id>spring-milestones</id>
            <url>http://repo.spring.io/milestone</url>
        </repository>
    </repositories>
    <pluginRepositories>
        <pluginRepository>
            <id>spring-snapshots</id>
            <url>http://repo.spring.io/snapshot</url>
        </pluginRepository>
        <pluginRepository>
            <id>spring-milestones</id>
            <url>http://repo.spring.io/milestone</url>
        </pluginRepository>
    </pluginRepositories>

5.pom文件配置依赖

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-thymeleaf</artifactId>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
            <version>2.2.5.RELEASE</version>
        </dependency>
    </dependencies>

6.创建程序入口

在/src/main/java/目录创建启动类

package com.wxs.springweb;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

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

7.创建配置文件

在/src/main/resources/目录创建配置文件application.yml

server:
  port: 8000

spring:
  profiles:
    active: dev
  mvc:
    view:
      prefix: classpath:/templates
      suffix: .html
    static-path-pattern: /static/**
  thymeleaf:
    mode: HTML
    encoding: utf-8
    servlet:
      content-type: text/html
    cache: false
  servlet:
    multipart:
      enabled: true
      max-file-size: 20MB
      max-request-size: 20MB
  session:
    timeout: 15m
  resources:
    cache:
      cachecontrol:
        cache-private: true
        max-age: 1m
        must-revalidate: true

8.添加控制器

添加IndexController

package com.wxs.springweb.controller;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
@RequestMapping("/index")
public class IndexController {

    @GetMapping("/page1")
    String Page1() {
        return "/index/page1";
    }
}

9.添加页面

在src.main.resources.templates.index下添加页面page1.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Page1</title>
</head>
<body>
  <h1>Page1</h1>
</body>
</html>

10.访问

http://localhost:8000/index/page1

手动配置基本的SpringBoot项目结束，如果需要更多的配置，比如Spring MVC、Security、shiro、Redis、MyBatis、MySQL等可参考相关文档配置。