springboot在eclipse上搭建项目一(无页面)

1、pom.xml

<?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 https://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>2.3.4.RELEASE</version>
		<relativePath/> <!-- lookup parent from repository -->
	</parent>
	<groupId>com.example</groupId>
	<artifactId>demo</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<!-- 指定打包位war包 -->
	<packaging>war</packaging>
	<name>demo</name>
	<description>Demo project for Spring Boot</description>

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

	<dependencies>
		<!-- Spring-web的启动器依赖 -->
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-web</artifactId>
		</dependency>

		<!-- mybatis -->
		<dependency>
			<groupId>org.mybatis.spring.boot</groupId>
			<artifactId>mybatis-spring-boot-starter</artifactId>
			<version>1.2.0</version>
		</dependency>
		
		<!--配置jdbc的依赖-->
		<dependency>
			<groupId>mysql</groupId>
			<artifactId>mysql-connector-java</artifactId>
			<!-- <version>8.0.11</version> -->
		</dependency>
		
		<!--配置druid的依赖-->
		<dependency>
			<groupId>com.alibaba</groupId>
			<artifactId>druid-spring-boot-starter</artifactId>
			<version>1.1.10</version>
		</dependency>
		
		<!--配置PageHelper分页插件启动器依赖-->
        <dependency>
            <groupId>com.github.pagehelper</groupId>
            <artifactId>pagehelper-spring-boot-starter</artifactId>
            <version>1.2.12</version>
        </dependency>
        
		<!-- thymeleaf模板 -->
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-thymeleaf</artifactId>
		</dependency>
		
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-test</artifactId>
			<scope>test</scope>
			<!-- <exclusions>
				<exclusion>
					<groupId>org.junit.vintage</groupId>
					<artifactId>junit-vintage-engine</artifactId>
				</exclusion>
			</exclusions> -->
		</dependency>
        
        
		
	</dependencies>

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

	<!-- <resource>
		指定处理 src/main/resources目录下的那些资源
		<directory>src/main/resources</directory>
		<filtering>true</filtering>
		<includes>
			<include>**/*.yaml</include>
			<include>**/*.xml</include>
			<include>**/*.properties</include>
			<include>**/*.html</include>//加入html的文件
		</includes>
	</resource> -->
</project>

2、application.properties

#u4FEEu6539u7AEFu53E3
server.port=8080

spring.mvc.view.prefix=/templates/
spring.mvc.view.suffix=.html

# u8FDEu63A5u56DBu5927u53C2u6570
spring.datasource.url=jdbc:mysql://localhost:3306/test?serverTimezone=UTC
spring.datasource.username=root
spring.datasource.password=root
# u53EFu7701u7565uFF0CSpringBootu81EAu52A8u63A8u65AD
#spring.datasource.driverClassName=com.mysql.jdbc.Driver
spring.datasource.driverClassName=com.mysql.cj.jdbc.Driver

mybatis.mapper-locations=classpath:com.example.demo.dao.*.xml

spring.datasource.hikari.idle-timeout=60000
spring.datasource.hikari.maximum-pool-size=30
spring.datasource.hikari.minimum-idle=10


logging.config=classpath:logback-spring.xml
#logging.level.root=info

3、logback-spring.xml

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
    <!-- %m输出的信息,%p日志级别,%t线程名,%d日期,%c类的全名,%i索引【从数字0开始递增】,,, -->
    <!-- appender是configuration的子节点，是负责写日志的组件。 -->
    <!-- ConsoleAppender：把日志输出到控制台 -->
    <appender name="Console" class="ch.qos.logback.core.ConsoleAppender">
        <encoder>
            <pattern>%d %p (%file:%line)- %m%n</pattern>
            <!-- 控制台也要使用UTF-8，不要使用GBK，否则会中文乱码 -->
            <!--<charset>GBK</charset>-->
        </encoder>
    </appender>
    <!-- RollingFileAppender：滚动记录文件，先将日志记录到指定文件，当符合某个条件时，将日志记录到其他文件 -->
    <!-- 以下的大概意思是：1.先按日期存日志，日期变了，将前一天的日志文件名重命名为XXX%日期%索引，新的日志仍然是sys.log -->
    <!--             2.如果日期没有发生变化，但是当前日志的文件大小超过1KB时，对当前日志进行分割 重命名-->
    <appender name="file"
              class="ch.qos.logback.core.rolling.RollingFileAppender">
        <!--  <File>sys.log</File>-->
        <File>H:log/sys.log</File>
        <!-- rollingPolicy:当发生滚动时，决定 RollingFileAppender 的行为，涉及文件移动和重命名。 -->
        <!-- TimeBasedRollingPolicy： 最常用的滚动策略，它根据时间来制定滚动策略，既负责滚动也负责出发滚动 -->
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <!-- 活动文件的名字会根据fileNamePattern的值，每隔一段时间改变一次 -->
            <!-- 文件名：log/sys.2017-12-05.0.log -->
            <fileNamePattern>log/sys.%d.%i.log</fileNamePattern>
            <!--<fileNamePattern>sys.%d.%i.log</fileNamePattern>-->
            <!-- 每产生一个日志文件，该日志文件的保存期限为30天 -->
            <maxHistory>30</maxHistory>
            <timeBasedFileNamingAndTriggeringPolicy  class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
                <!-- maxFileSize:这是活动文件的大小，默认值是10MB,本篇设置为1KB，只是为了演示 -->
                <maxFileSize>300KB</maxFileSize>
            </timeBasedFileNamingAndTriggeringPolicy>
        </rollingPolicy>
        <encoder>
            <!-- pattern节点，用来设置日志的输入格式 -->
            <pattern>
                %d %p (%file:%line)- %m%n
            </pattern>
            <!-- 记录日志的编码 -->
            <charset>UTF-8</charset> <!-- 此处设置字符集 -->
        </encoder>
    </appender>
    <!-- 控制台输出日志级别 -->
    <root level="INFO">
        <appender-ref ref="Console" />
    </root>
    <!-- 指定项目中某个包，当有日志操作行为时的日志记录级别 -->
    <!-- com.appley为根包，也就是只要是发生在这个根包下面的所有日志操作行为的权限都是DEBUG -->
    <!-- 级别依次为【从高到低】：FATAL > ERROR > WARN > INFO > DEBUG > TRACE  -->
    <logger name="com.example.demo" level="INFO">
        <appender-ref ref="Console" />
    </logger>
</configuration>

4、com.example.demo.JdbcConfig.java

package com.example.demo;

import javax.sql.DataSource;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import com.alibaba.druid.pool.DruidDataSource;

/**
 * 
 * @author admin
 *
 */
@Configuration
//@PropertySource("classpath:jdbc.properties")
public class JdbcConfig {

	
	@Value("${spring.datasource.url}")
	private String url;
	@Value("${spring.datasource.driverClassName}")
	private String driverClassName;
	@Value("${spring.datasource.username}")
	private String username;
	@Value("${spring.datasource.password}")
	private String password;
	
	@Bean
	public DataSource dataSource1() {
		DruidDataSource dataSource = new DruidDataSource();
		dataSource.setUrl(url);
		dataSource.setDriverClassName(driverClassName);
		dataSource.setUsername(username);
		dataSource.setPassword(password);
		return dataSource;
	}
	@Bean
	@ConfigurationProperties(prefix = "spring.datasource")
	public DataSource dataSource() {
		DruidDataSource dataSource = new DruidDataSource();
		return dataSource;
	}
}

5、com.example.demo.DemoApplication.java

package com.example.demo;

import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
//import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.SpringBootApplication;
//import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;

@SpringBootApplication
@MapperScan(value = "com.example.demo.dao")
//@EnableAutoConfiguration(exclude = DataSourceAutoConfiguration.class)
public class DemoApplication {

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

}

6、com.example.demo.controller.UserController.java

package com.example.demo.controller;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import com.example.demo.entity.User;
import com.example.demo.service.UserService;

@RestController
public class UserController {

	@Autowired
	private UserService userService;
	
	@RequestMapping("/getUser")
	public User getUser() {
		String idCard = "3306";
		User user = userService.getUser(idCard);
		return user;
	}
}

7、com.example.demo.service.UserService.java

package com.example.demo.service;

import com.example.demo.entity.User;

public interface UserService {

	User getUser(String idCard);
}

8、com.example.demo.service.impl.UserServiceImpl.java

package com.example.demo.service.impl;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.example.demo.dao.UserDao;
import com.example.demo.entity.User;
import com.example.demo.service.UserService;

@Service
public class UserServiceImpl implements UserService{

	@Autowired
	private UserDao userDao;
	
	@Override
	public User getUser(String idCard) {
		return userDao.getUser(idCard);
	}

}

9、com.example.demo.dao.UserDao.java

package com.example.demo.dao;

import org.apache.ibatis.annotations.Mapper;
//import org.springframework.stereotype.Component;

import com.example.demo.entity.User;

@Mapper
//@Component
public interface UserDao {

	User getUser(String idCard);
}

10、com.example.demo.dao.UserDao.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper
	PUBLIC "-//mybatis.org//DTD mapper 3.0//EN"
	"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.example.demo.dao.UserDao">
	<select id="getUser" parameterType="String" resultType="com.example.demo.entity.User">
		select id_card as idCard, user_name as userName, pwd from user1 where id_card = #{idCard}
	</select>
</mapper>

11、com.example.demo.entity.User.java

package com.example.demo.entity;

public class User {

	private String idCard;
	private String userName;
	private String pwd;
	public String getIdCard() {
		return idCard;
	}
	public void setIdCard(String idCard) {
		this.idCard = idCard;
	}
	public String getUserName() {
		return userName;
	}
	public void setUserName(String userName) {
		this.userName = userName;
	}
	public String getPwd() {
		return pwd;
	}
	public void setPwd(String pwd) {
		this.pwd = pwd;
	}
	
}

12、sql语句

/****产品信息表****/
CREATE TABLE T_PRODUCT(
	id INT(12)	NOT NULL AUTO_INCREMENT COMMENT '编号',
	product_name	VARCHAR(60)	NOT NULL COMMENT '产品名称',
	stock INT(10) NOT NULL COMMENT '库存',
	price DECIMAL(16,2) NOT NULL COMMENT '单价',
	VERSION INT(10) NOT NULL DEFAULT 0 COMMENT '版本号',
	note VARCHAR(256) NULL COMMENT '备注',
	PRIMARY KEY (id));

/****产品信息表****/
CREATE TABLE T_PURCHASE_RECODE(
	id INT(12) NOT NULL AUTO_INCREMENT COMMENT '编号',
	user_id INT(12) NOT NULL COMMENT '用户编号',
	product_id INT(12) NOT NULL COMMENT '产品编号',
	price DECIMAL(16,2) NOT NULL COMMENT '数量',
	quantity INT(12) NOT NULL COMMENT '数量',
	SUM DECIMAL(16,2) NOT NULL COMMENT '总价',
	purchase_date TIMESTAMP NOT NULL DEFAULT NOW() COMMENT '购买日期',
	note VARCHAR(512) NULL COMMENT '备注',
	PRIMARY KEY (id));

CREATE TABLE user1(
	id_card VARCHAR(18) NOT NULL COMMENT '身份证号',
	user_name VARCHAR(52) NOT NULL COMMENT '账号',
	pwd VARCHAR(32) NOT NULL COMMENT '密码',
	PRIMARY KEY (id_card));

INSERT INTO user1 (id_card, user_name, pwd) VALUE('3306','用户1','111111');

SELECT * FROM user1;