保姆级搭建springboot+web+mysql+hibernate+thymeleaf+druid项目

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搭建springboot+web+mysql+hibernate+thymeleaf+druid项目

1.进入spring initializr：http://start.spring.io/

2.选择需要用到的配置：

3.下载后导入开发工具（我用的是eclipse）

4.右击项目选择BuildPath-Configure Build Path

5.删除报错的JRE包

6.重新添加一个JRE包

7.在左侧选择：Java Compiler

8：将JDK选择自己对应的版本

9：在启动类中的@SpringBootApplication后加入(exclude={DataSourceAutoConfiguration.class,HibernateJpaAutoConfiguration.class})

10：将application.properties改成application.yaml，在当中写以下配置(复制请把数据库账号密码、数据库表名改成自己的)

#配置端口
server:
  port: 8089

spring:

  #配置数据源
  datasource:
    driver-class-name: com.mysql.cj.jdbc.Driver
    url: jdbc:mysql://localhost:3306/test?serverTimezone=Asia/Shanghai&nullCatalogMeansCurrent=true&useSSL=false
    username: root
    password: 123456
    type: com.alibaba.druid.pool.DruidDataSource
    
  #配置jpa持久层，hibernate
  jpa:  
    hibernate:
     ddl-auto: update
    show-sql: true
    database: mysql
    
  #配置thymeleaf模板引擎
  thymeleaf:
    cache: false
    mode: LEGACYHTML5
    encoding: UTF-8  
    prefix: classpath:/templates/
    suffix: .html

11.导入pom依赖（之前在spring initializr导入后还要添加2个依赖，我用的是druid数据连接池，processor是 一个注解处理器，在编译阶段干活的，一般在maven的声明都是 ,optional 为true ）

<dependency>
			<groupId>com.alibaba</groupId>
			<artifactId>druid</artifactId>
			<version>1.1.24</version>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-configuration-processor</artifactId>
			<optional>true</optional>
		</dependency>

12.写controller、dao、pojo、service层

• pojo

  package com.springboot.huyitest.pojo;
  
  import javax.persistence.Entity;
  import javax.persistence.GeneratedValue;
  import javax.persistence.GenerationType;
  import javax.persistence.Table;
  import javax.persistence.Id;
  
  @Entity
  @Table(name = "USER")
  public class userPojo {
  	@Id
  	@GeneratedValue(strategy = GenerationType.IDENTITY)
  	private Integer Id;
  	private String UserName;
  	private String password;
  	private Integer age;
  	
  	public Integer getId() {
  		return Id;
  	}
  	public void setId(Integer id) {
  		Id = id;
  	}
  	public Integer getAge() {
  		return age;
  	}
  	public void setAge(Integer age) {
  		this.age = age;
  	}
  	public String getUserName() {
  		return UserName;
  	}
  	public void setUserName(String userName) {
  		UserName = userName;
  	}
  	public String getPassword() {
  		return password;
  	}
  	public void setPassword(String password) {
  		this.password = password;
  	}
  }
  
  

• dao

  package com.springboot.huyitest.dao;
  
  
  import org.springframework.data.jpa.repository.JpaRepository;
  import org.springframework.data.jpa.repository.JpaSpecificationExecutor;
  import org.springframework.stereotype.Repository;
  import com.springboot.huyitest.pojo.userPojo;
  
  @Repository(value = "userPojo")
  public interface userDao extends JpaRepository<userPojo, Integer>,JpaSpecificationExecutor<userPojo>{
  
  }
  
  

• service

  package com.springboot.huyitest.service;
  
  import java.util.List;
  
  import com.springboot.huyitest.pojo.userPojo;
  
  public interface userService {
  	List<userPojo> getUser();
  	void addUser(userPojo user);
  }
  
  

• serviceImpl

  package com.springboot.huyitest.service.Impl;
  
  import java.util.List;
  
  import org.springframework.beans.factory.annotation.Autowired;
  import org.springframework.stereotype.Service;
  
  import com.springboot.huyitest.dao.userDao;
  import com.springboot.huyitest.pojo.userPojo;
  import com.springboot.huyitest.service.userService;
  
  @Service
  public class userServiceImpl implements userService{
  	@Autowired
  	private userDao userdao;
  	
  	@Override
  	public List<userPojo> getUser() {
  		// TODO Auto-generated method stub
  		return userdao.findAll();
  	}
  
  	@Override
  	public void addUser(userPojo user) {
  		// TODO Auto-generated method stub
  		userdao.save(user);
  	}
  
  }
  
  

• controller

  package com.springboot.huyitest.controller;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.RequestMapping;

import com.springboot.huyitest.pojo.userPojo;
import com.springboot.huyitest.service.userService;

@Controller
public class logoinController {
	@Autowired
	private userService userservice;
	
	@RequestMapping("/logoin")
	public String logoin(ModelMap map) {
		userPojo user = new userPojo();
		user.setId(1);
		user.setAge(3);
		user.setUserName("huyi");
		user.setPassword("12312");
		userservice.addUser(user);
		
		System.err.println(user.getPassword()+""+user.getUserName());
		map.put("users", user);
		return "logoin";
	}
}
  

13：在resources-templates下创建一个html页面

14.在 头中加入 lang="en" xmlns:th="http://www.thymeleaf.org",随便写一个thymeleaf测试

<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
这里是登录页面
	<div th:each="user:${users}">
		<a th:text="${user.UserName}"></a>
	</div> 	 
</body>
</html>

15.在启动类上加一个注解@EnableAutoConfiguration与yaml文件中的show-sql: true对应实现数据库自动创表

16.右键Run As-Spring Boot App运行项目，这个项目就搭建完啦！！！*

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