IDEA开发SpringBoot

矫情吗；* 2024-04-18 17:18 67阅读 0赞

#### IDEA开发SpringBoot ####

*   *  1.新建工程
     *  2.修改配置文件：
     *  \*3.在com.example.demo下创建新的包和文件\*
     *  4.在Resources添加html、css、js和mapping
     *  项目创建完成，结构如下
     *  运行项目并访问：
     *  初次创建，如有错误欢迎批评指正

先来一张项目结构图：

从头开始配置Springboot项目：

### 1.新建工程 ###

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjE3NjYzOQ_size_16_color_FFFFFF_t_70]

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjE3NjYzOQ_size_16_color_FFFFFF_t_70 1]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjE3NjYzOQ_size_16_color_FFFFFF_t_70 2]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjE3NjYzOQ_size_16_color_FFFFFF_t_70 3]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjE3NjYzOQ_size_16_color_FFFFFF_t_70 4]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjE3NjYzOQ_size_16_color_FFFFFF_t_70 5]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjE3NjYzOQ_size_16_color_FFFFFF_t_70 6]

### 2.修改配置文件： ###

**默认如下：  
在加入sql server依赖时需要手动下载jar移动到maven仓库指定路径**

<?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>2.1.8.RELEASE</version>
    		<relativePath/> 
    	</parent>
    	<groupId>com.example</groupId>
    	<artifactId>demo</artifactId>
    	<version>0.0.1-SNAPSHOT</version>
    	<name>LearSpringBoot</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-web</artifactId>
    		</dependency>
    
    		<dependency>
    			<groupId>org.springframework.boot</groupId>
    			<artifactId>spring-boot-starter-test</artifactId>
    			<scope>test</scope>
    		</dependency>
    	</dependencies>
    
    	<build>
    		<plugins>
    			<plugin>
    				<groupId>org.springframework.boot</groupId>
    				<artifactId>spring-boot-maven-plugin</artifactId>
    			</plugin>
    		</plugins>
    	</build>
    
    </project>

加入以下内容：

<dependency>
    			<groupId>org.springframework.boot</groupId>
    			<artifactId>spring-boot-starter-web</artifactId>
    			<exclusions>
    				<exclusion>
    					<groupId>org.springframework.boot</groupId>
    					<artifactId>spring-boot-starter-logging</artifactId>
    				</exclusion>
    			</exclusions>
    		</dependency>
    		
    		<dependency>
    			<groupId>net.sourceforge.nekohtml</groupId>
    			<artifactId>nekohtml</artifactId>
    		</dependency>
    		
    		<dependency>
    			<groupId>org.webjars</groupId>
    			<artifactId>bootstrap</artifactId>
    			<version>3.3.7</version>
    		</dependency>
    		<dependency>
    			<groupId>org.webjars</groupId>
    			<artifactId>jquery</artifactId>
    			<version>3.1.1</version>
    		</dependency>
    		
    		<dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-thymeleaf</artifactId>
            </dependency>
            
    		<dependency>
    			<groupId>org.springframework.boot</groupId>
    			<artifactId>spring-boot-devtools</artifactId>
    			<optional>true</optional> 
    		</dependency>
    		
    		<dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-thymeleaf</artifactId>
            </dependency>
            
            <dependency>
    			<groupId>org.springframework.boot</groupId>
    			<artifactId>spring-boot-starter-log4j2</artifactId>
    		</dependency>
    		
    		<dependency>
    			<groupId>aspectj</groupId>
    			<artifactId>aspectjweaver</artifactId>
    			<version>1.5.3</version>
    		</dependency>
    		<dependency>
    			<groupId>org.springframework.boot</groupId>
    			<artifactId>spring-boot-starter-aop</artifactId>
    			<exclusions>
    				<exclusion>
    					<groupId>org.springframework.boot</groupId>
    					<artifactId>spring-boot-starter-logging</artifactId>
    				</exclusion>
    			</exclusions>
    		</dependency>
    		
    		<dependency>
    			<groupId>org.mybatis.spring.boot</groupId>
    			<artifactId>mybatis-spring-boot-starter</artifactId>
    			<version>1.3.2</version>
    		</dependency>
    		
    		<dependency>
    			<groupId>com.alibaba</groupId>
    			<artifactId>druid</artifactId>
    			<version>1.1.16</version>
    		</dependency>
    		
    		<dependency>
    			<groupId>com.microsoft.sqlserver</groupId>
    			<artifactId>sqljdbc4</artifactId>
    			<version>4.2</version>
    		</dependency>

build修改如下：

<build>
    		<plugins>
                <plugin>
    				<groupId>org.springframework.boot</groupId>
    				<artifactId>spring-boot-maven-plugin</artifactId>
    				<configuration>
    					<fork>true</fork> 
    				</configuration>
    			</plugin>
    			<plugin>
    				<groupId>org.mybatis.generator</groupId>
    				<artifactId>mybatis-generator-maven-plugin</artifactId>
    				<version>1.3.2</version>
    				<configuration>
    					<verbose>true</verbose>
    					<overwrite>true</overwrite>
    				</configuration>
    			</plugin>
    		</plugins>
    	</build>

**在resources下添加新的配置文件  
新建application.properties：**

spring.profiles.active=dev
    spring.mvc.servlet.load-on-startup=100
    spring.thymeleaf.prefix=classpath:/templates
    spring.thymeleaf.suffix=.html
    #关闭缓存
    spring.thymeleaf.cache=false
    #热部署生效
    #spring.devtools.restart.enabled=true
    
    #高版本：页面默认前缀、后缀目录
    #spring.mvc.view.prefix=/pages
    #spring.mvc.view.suffix=.jsp
    #低版本：页面默认前缀、后缀目录
    #spring.view.prefix=/pages
    #spring.view.suffix=.jsp
    
    ##########################  sql server   ##########################
    spring.datasource.url=jdbc:sqlserver://127.0.0.1:1433;DatabaseName=db_SpringBoot
    spring.datasource.username=sa
    spring.datasource.password=654321
    spring.datasource.driver-class-name=com.microsoft.sqlserver.jdbc.SQLServerDriver
    #logging.config=classpath:log4j2.xml
    logging.level.com.shyroke.mapper=debug
    ##########################  mybatis   ##########################
    mybatis.mapper-locations=classpath:mapping/*.xml
    mybatis.type-aliases-package=com.example.demo.model
    ##########################  druid配置   ##########################
    spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
    # 初始化大小，最小，最大
    spring.datasource.initialSize=5
    spring.datasource.minIdle=5
    spring.datasource.maxActive=20
    # 配置获取连接等待超时的时间
    spring.datasource.maxWait=60000
    # 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒
    spring.datasource.timeBetweenEvictionRunsMillis=60000
    # 配置一个连接在池中最小生存的时间，单位是毫秒
    spring.datasource.minEvictableIdleTimeMillis=300000
    # 校验SQL，Oracle配置 spring.datasource.validationQuery=SELECT 1 FROM DUAL，如果不配validationQuery项，则下面三项配置无用
    spring.datasource.validationQuery=SELECT 'x'
    spring.datasource.testWhileIdle=true
    spring.datasource.testOnBorrow=false
    spring.datasource.testOnReturn=false
    # 打开PSCache，并且指定每个连接上PSCache的大小
    spring.datasource.poolPreparedStatements=true
    spring.datasource.maxPoolPreparedStatementPerConnectionSize=20
    # 配置监控统计拦截的filters，去掉后监控界面sql无法统计，'wall'用于防火墙
    spring.datasource.filters=stat,wall,log4j2
    # 通过connectProperties属性来打开mergeSql功能；慢SQL记录
    spring.datasource.connectionProperties=druid.stat.mergeSql=true;druid.stat.slowSqlMillis=5000
    # 合并多个DruidDataSource的监控数据
    spring.datasource.useGlobalDataSourceStat=true
    
    logging.config=classpath:log4j2.xml
    # 配置日志输出
    spring.datasource.druid.filter.slf4j.enabled=true
    spring.datasource.druid.filter.slf4j.statement-create-after-log-enabled=false
    spring.datasource.druid.filter.slf4j.statement-close-after-log-enabled=false
    spring.datasource.druid.filter.slf4j.result-set-open-after-log-enabled=false
    spring.datasource.druid.filter.slf4j.result-set-close-after-log-enabled=false

**开发环境：application-dev.properties**

server.port=8887
    #资源映射路径为/image/**，你想在url访问的请求路径
    #spring.mvc.static-path-pattern=/**
    #spring.resources.static-locations=classpath:/META-INF/resources/,classpath:/resources/,classpath:/static/,classpath:/public/
    
    #资源映射地址为file:D://User/，图片存放的真实路径
    #spring.resources.static-locations=file:D://User/

**测试环境：application-test.properties**

server.port=8889

**生产环境：application-prod.properties**

server.port=8888

**配置druid-bean文件：**

<?xml version="1.0" encoding="UTF-8"?>
    <beans xmlns="http://www.springframework.org/schema/beans"
           xmlns:aop="http://www.springframework.org/schema/aop" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
           xsi:schemaLocation="
            http://www.springframework.org/schema/beans
            http://www.springframework.org/schema/beans/spring-beans.xsd
            http://www.springframework.org/schema/aop
            http://www.springframework.org/schema/aop/spring-aop.xsd">
    
        
        <bean id="druid-stat-interceptor"
              class="com.alibaba.druid.support.spring.stat.DruidStatInterceptor"></bean>
    
        
        <bean id="druid-stat-pointcut" class="org.springframework.aop.support.JdkRegexpMethodPointcut"
              scope="prototype">
            <property name="patterns">
                <list>
                    <value>com.example.demo.mapper.*</value>
                </list>
            </property>
        </bean>
    
        <aop:config proxy-target-class="true">
            <aop:advisor advice-ref="druid-stat-interceptor"
                         pointcut-ref="druid-stat-pointcut" />
        </aop:config>
    
    </beans>

**配置自动生成Model、mapper的文件：**

<?xml version="1.0" encoding="UTF-8"?>
    <!DOCTYPE generatorConfiguration
            PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"
            "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">
    <generatorConfiguration>
        
        <classPathEntry  location="C:\Users\zhanghx\Desktop\MavenRepository\repo\com\microsoft\sqlserver\sqljdbc4\4.2\sqljdbc4-4.2.jar"/>
        <context id="DB2Tables"  targetRuntime="MyBatis3">
            <commentGenerator>
                <property name="suppressDate" value="true"/>
                
                <property name="suppressAllComments" value="true"/>
            </commentGenerator>
            
            <jdbcConnection driverClass="com.microsoft.sqlserver.jdbc.SQLServerDriver" connectionURL="jdbc:sqlserver://127.0.0.1:1433;DatabaseName=db_SpringBoot" userId="sa" password="654321">
            </jdbcConnection>
            <javaTypeResolver>
                <property name="forceBigDecimals" value="false"/>
            </javaTypeResolver>
            
            <javaModelGenerator targetPackage="com.example.demo.model" targetProject="src/main/java">
                <property name="enableSubPackages" value="true"/>
                <property name="trimStrings" value="true"/>
            </javaModelGenerator>
            
            <sqlMapGenerator targetPackage="mapping" targetProject="src/main/resources">
                <property name="enableSubPackages" value="true"/>
            </sqlMapGenerator>
            
            <javaClientGenerator type="XMLMAPPER" targetPackage="com.example.demo.mapper" targetProject="src/main/java">
                <property name="enableSubPackages" value="true"/>
            </javaClientGenerator>
            
            <table tableName="tb_users" domainObjectName="User" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table>
        </context>
    </generatorConfiguration>

**配置日志文件log4j2.xml**

<?xml version="1.0" encoding="UTF-8"?>
    <configuration status="OFF">
        <appenders>
    
            <Console name="Console" target="SYSTEM_OUT">
                
                <ThresholdFilter level="DEBUG" onMatch="ACCEPT" onMismatch="DENY"/>
                <PatternLayout pattern="[%d{HH:mm:ss.SSS}] %-5level %class{36} %L %M - %msg%xEx%n"/>
            </Console>
    
            
            
            <RollingFile name="RollingFileDebug" fileName="./logs/debug.log"
                         filePattern="logs/$${date:yyyy-MM}/debug-%d{yyyy-MM-dd}-%i.log.gz">
                <Filters>
                    <ThresholdFilter level="DEBUG"/>
                    <ThresholdFilter level="INFO" onMatch="DENY" onMismatch="NEUTRAL"/>
                </Filters>
                <PatternLayout
                        pattern="[%d{yyyy-MM-dd HH:mm:ss}] %-5level %class{36} %L %M - %msg%xEx%n"/>
                <Policies>
                    <SizeBasedTriggeringPolicy size="500 MB"/>
                    <TimeBasedTriggeringPolicy/>
                </Policies>
            </RollingFile>
    
            
            <RollingFile name="RollingFileInfo" fileName="./logs/info.log"
                         filePattern="logs/$${date:yyyy-MM}/info-%d{yyyy-MM-dd}-%i.log.gz">
                <Filters>
                    
                    <ThresholdFilter level="INFO"/>
                    <ThresholdFilter level="WARN" onMatch="DENY" onMismatch="NEUTRAL"/>
                </Filters>
                <PatternLayout
                        pattern="[%d{yyyy-MM-dd HH:mm:ss}] %-5level %class{36} %L %M - %msg%xEx%n"/>
                <Policies>
                    <SizeBasedTriggeringPolicy size="500 MB"/>
                    <TimeBasedTriggeringPolicy/>
                </Policies>
            </RollingFile>
    
            
            <RollingFile name="RollingFileWarn" fileName="./logs/warn.log"
                         filePattern="logs/$${date:yyyy-MM}/warn-%d{yyyy-MM-dd}-%i.log.gz">
                <Filters>
                    <ThresholdFilter level="WARN"/>
                    <ThresholdFilter level="ERROR" onMatch="DENY" onMismatch="NEUTRAL"/>
                </Filters>
                <PatternLayout
                        pattern="[%d{yyyy-MM-dd HH:mm:ss}] %-5level %class{36} %L %M - %msg%xEx%n"/>
                <Policies>
                    <SizeBasedTriggeringPolicy size="500 MB"/>
                    <TimeBasedTriggeringPolicy/>
                </Policies>
            </RollingFile>
    
            
            <RollingFile name="RollingFileError" fileName="./logs/error.log"
                         filePattern="logs/$${date:yyyy-MM}/error-%d{yyyy-MM-dd}-%i.log.gz">
                <ThresholdFilter level="ERROR"/>
                <PatternLayout
                        pattern="[%d{yyyy-MM-dd HH:mm:ss}] %-5level %class{36} %L %M - %msg%xEx%n"/>
                <Policies>
                    <SizeBasedTriggeringPolicy size="500 MB"/>
                    <TimeBasedTriggeringPolicy/>
                </Policies>
            </RollingFile>
    
            
            <RollingFile name="druidSqlRollingFile" fileName="./logs/druid-sql.log"
                         filePattern="logs/$${date:yyyy-MM}/api-%d{yyyy-MM-dd}-%i.log.gz">
                <PatternLayout pattern="[%d{yyyy-MM-dd HH:mm:ss}] %-5level %L %M - %msg%xEx%n"/>
                <Policies>
                    <SizeBasedTriggeringPolicy size="500 MB"/>
                    <TimeBasedTriggeringPolicy/>
                </Policies>
            </RollingFile>
        </appenders>
        
        <loggers>
            <root level="info">
                <appender-ref ref="Console"/>
                <appender-ref ref="RollingFileInfo"/>
                <appender-ref ref="RollingFileWarn"/>
                <appender-ref ref="RollingFileError"/>
                <appender-ref ref="RollingFileDebug"/>
            </root>
    
            
            <logger name="druid.sql.Statement" level="debug" additivity="false">
                <appender-ref ref="druidSqlRollingFile"/>
            </logger>
    
            
            <Logger name="org.apache.catalina.startup.DigesterFactory" level="error" />
            <Logger name="org.apache.catalina.util.LifecycleBase" level="error" />
            <Logger name="org.apache.coyote.http11.Http11NioProtocol" level="warn" />
            <logger name="org.apache.sshd.common.util.SecurityUtils" level="warn"/>
            <Logger name="org.apache.tomcat.util.net.NioSelectorPool" level="warn" />
            <Logger name="org.crsh.plugin" level="warn" />
            <logger name="org.crsh.ssh" level="warn"/>
            <Logger name="org.eclipse.jetty.util.component.AbstractLifeCycle" level="error" />
            <Logger name="org.hibernate.validator.internal.util.Version" level="warn" />
            <logger name="org.springframework.boot.actuate.autoconfigure.CrshAutoConfiguration" level="warn"/>
            <logger name="org.springframework.boot.actuate.endpoint.jmx" level="warn"/>
            <logger name="org.thymeleaf" level="warn"/>
        </loggers>
    </configuration>

### *3.在com.example.demo下创建新的包和文件* ###

**新建控制器类：UserController**

package com.example.demo.controller;
    
    import com.example.demo.model.User;
    import com.example.demo.service.UserService;
    import org.springframework.context.annotation.Scope;
    import org.springframework.stereotype.Controller;
    import org.springframework.ui.Model;
    import org.springframework.web.bind.annotation.RequestMapping;
    
    import javax.annotation.Resource;
    import javax.servlet.http.HttpServletRequest;
    import java.util.List;
    
    @Controller
    @Scope("prototype")
    public class UserController{
    
        //注入service
        @Resource(name = "userService")
        private UserService service;
    
        @RequestMapping("/users")
        public String SelectAll(Model model, HttpServletRequest request){
            System.out.print("查询用户");
            List<User> users = (List<User>) service.selectAll();
            System.out.print("打印数据结果");
            model.addAttribute("users",users);
            return "/users/SelectUsers";
        }
    
    }

**新建Service接口类：UserService**

package com.example.demo.service;
    
    import com.example.demo.model.User;
    
    import java.util.List;
    
    public interface UserService {
    
        public List<User> selectAll();
    }

**新建ServiceImpl实现类：UserServiceImpl**

package com.example.demo.serviceImpl;
    
    import com.example.demo.mapper.UserMapper;
    import com.example.demo.model.User;
    import com.example.demo.service.UserService;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Service;
    
    import java.util.List;
    
    @Service("userService")
    public class UserServiceImpl implements UserService {
    
        @Autowired
        private UserMapper userMapper;
    
        @Override
        public List<User> selectAll() {
    
            return userMapper.selectAll();
        }
    }

**新建（自动生成）model：User**

package com.example.demo.model;
    
    public class User {
        private Integer id;
    
        private String account;
    
        private String names;
    
        private String password;
    
        private String rights;
    
        private String email;
    
        private String phone;
    
        private String age;
    
        private String sex;
    
        public Integer getId() {
            return id;
        }
    
        public void setId(Integer id) {
            this.id = id;
        }
    
        public String getAccount() {
            return account;
        }
    
        public void setAccount(String account) {
            this.account = account == null ? null : account.trim();
        }
    
        public String getNames() {
            return names;
        }
    
        public void setNames(String names) {
            this.names = names == null ? null : names.trim();
        }
    
        public String getPassword() {
            return password;
        }
    
        public void setPassword(String password) {
            this.password = password == null ? null : password.trim();
        }
    
        public String getRights() {
            return rights;
        }
    
        public void setRights(String rights) {
            this.rights = rights == null ? null : rights.trim();
        }
    
        public String getEmail() {
            return email;
        }
    
        public void setEmail(String email) {
            this.email = email == null ? null : email.trim();
        }
    
        public String getPhone() {
            return phone;
        }
    
        public void setPhone(String phone) {
            this.phone = phone == null ? null : phone.trim();
        }
    
        public String getAge() {
            return age;
        }
    
        public void setAge(String age) {
            this.age = age == null ? null : age.trim();
        }
    
        public String getSex() {
            return sex;
        }
    
        public void setSex(String sex) {
            this.sex = sex == null ? null : sex.trim();
        }
    }

**新建（自动生成）mapper：UserMapper**

package com.example.demo.mapper;
    
    import com.example.demo.model.User;
    import org.apache.ibatis.annotations.Mapper;
    
    import java.util.List;
    
    @Mapper
    public interface UserMapper {
        int deleteByPrimaryKey(Integer id);
    
        int insert(User record);
    
        int insertSelective(User record);
    
        User selectByPrimaryKey(Integer id);
    
        List<User> selectAll();
    
        int updateByPrimaryKeySelective(User record);
    
        int updateByPrimaryKey(User record);
    }

**自定义Druid配置文件：**

package com.example.demo.configuration;
    
    import java.sql.SQLException;
    
    import javax.sql.DataSource;
    
    import org.springframework.beans.factory.annotation.Value;
    import org.springframework.context.annotation.Bean;
    import org.springframework.context.annotation.Configuration;
    import org.springframework.context.annotation.Primary;
    
    import com.alibaba.druid.pool.DruidDataSource;
    
    @Configuration
    public class DruidConfigration {
        @Value("${spring.datasource.url}")
        private String dbUrl;
        @Value("${spring.datasource.username}")
        private String username;
        @Value("${spring.datasource.password}")
        private String password;
        @Value("${spring.datasource.driver-class-name}")
        private String driverClassName;
        @Value("${spring.datasource.initialSize}")
        private int initialSize;
        @Value("${spring.datasource.minIdle}")
        private int minIdle;
        @Value("${spring.datasource.maxActive}")
        private int maxActive;
        @Value("${spring.datasource.maxWait}")
        private int maxWait;
        @Value("${spring.datasource.timeBetweenEvictionRunsMillis}")
        private int timeBetweenEvictionRunsMillis;
        @Value("${spring.datasource.minEvictableIdleTimeMillis}")
        private int minEvictableIdleTimeMillis;
        @Value("${spring.datasource.validationQuery}")
        private String validationQuery;
        @Value("${spring.datasource.testWhileIdle}")
        private boolean testWhileIdle;
        @Value("${spring.datasource.testOnBorrow}")
        private boolean testOnBorrow;
        @Value("${spring.datasource.testOnReturn}")
        private boolean testOnReturn;
        @Value("${spring.datasource.poolPreparedStatements}")
        private boolean poolPreparedStatements;
        @Value("${spring.datasource.maxPoolPreparedStatementPerConnectionSize}")
        private int maxPoolPreparedStatementPerConnectionSize;
        @Value("${spring.datasource.filters}")
        private String filters;
        @Value("${spring.datasource.connectionProperties}")
        private String connectionProperties;
        @Value("${spring.datasource.useGlobalDataSourceStat}")
        private boolean useGlobalDataSourceStat;
    
        @Bean     //声明其为Bean实例
        @Primary  //在同样的DataSource中，首先使用被标注的DataSource
        public DataSource dataSource(){
    
            DruidDataSource datasource = new DruidDataSource();
            datasource.setUrl(this.dbUrl);
            datasource.setUsername(username);
            datasource.setPassword(password);
            datasource.setDriverClassName(driverClassName);
    
            //configuration
            datasource.setInitialSize(initialSize);
            datasource.setMinIdle(minIdle);
            datasource.setMaxActive(maxActive);
            datasource.setMaxWait(maxWait);
            datasource.setTimeBetweenEvictionRunsMillis(timeBetweenEvictionRunsMillis);
            datasource.setMinEvictableIdleTimeMillis(minEvictableIdleTimeMillis);
            datasource.setValidationQuery(validationQuery);
            datasource.setTestWhileIdle(testWhileIdle);
            datasource.setTestOnBorrow(testOnBorrow);
            datasource.setTestOnReturn(testOnReturn);
            datasource.setPoolPreparedStatements(poolPreparedStatements);
            datasource.setMaxPoolPreparedStatementPerConnectionSize(maxPoolPreparedStatementPerConnectionSize);
            datasource.setUseGlobalDataSourceStat(useGlobalDataSourceStat);
            try {
                datasource.setFilters(filters);
            } catch (SQLException e) {
                System.err.println("druid configuration initialization filter: "+ e);
            }
            datasource.setConnectionProperties(connectionProperties);
            return datasource;
        }
    }

**添加DruidFilter**

package com.example.demo.filter;
    
    import javax.servlet.annotation.WebFilter;
    import javax.servlet.annotation.WebInitParam;
    
    import com.alibaba.druid.support.http.WebStatFilter;
    
    @WebFilter(filterName="druidWebStatFilter",urlPatterns="/*",
    initParams={@WebInitParam(name="exclusions",value="*.js,*.gif,*.jpg,*.bmp,*.png,*.css,*.ico,/druid/*")// 忽略资源
    })
    public class DruidFilter extends WebStatFilter {
    
    }

**添加DruidServlet**

package com.example.demo.servlet;
    import javax.servlet.annotation.WebInitParam;
    import javax.servlet.annotation.WebServlet;
    
    import com.alibaba.druid.support.http.StatViewServlet;
    @WebServlet(urlPatterns = "/druid/*",
    initParams={
    //@WebInitParam(name="allow",value="192.168.16.110,127.0.0.1"),// IP白名单 (没有配置或者为空，则允许所有访问)
    //@WebInitParam(name="deny",value="192.168.16.111"),// IP黑名单 (存在共同时，deny优先于allow)
    @WebInitParam(name="loginUsername",value="admin"),// 用户名
    @WebInitParam(name="loginPassword",value="admin"),// 密码
    @WebInitParam(name="resetEnable",value="false")// 禁用HTML页面上的“Reset All”功能
    })
    public class DruidServlet extends StatViewServlet {
    
        /**
         *
         */
        private static final long serialVersionUID = 1L;
    
    }

### 4.在Resources添加html、css、js和mapping ###

**新建mapping文件夹，新建（自动生成）：UserMapper.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.mapper.UserMapper" >
      <resultMap id="BaseResultMap" type="com.example.demo.model.User" >
        <id column="id" property="id" jdbcType="INTEGER" />
        <result column="account" property="account" jdbcType="NVARCHAR" />
        <result column="names" property="names" jdbcType="NVARCHAR" />
        <result column="password" property="password" jdbcType="NVARCHAR" />
        <result column="rights" property="rights" jdbcType="NVARCHAR" />
        <result column="email" property="email" jdbcType="NVARCHAR" />
        <result column="phone" property="phone" jdbcType="NVARCHAR" />
        <result column="age" property="age" jdbcType="NVARCHAR" />
        <result column="sex" property="sex" jdbcType="NVARCHAR" />
      </resultMap>
      <sql id="Base_Column_List" >
        id, account, names, password, rights, email, phone, age, sex
      </sql>
      <select id="selectByPrimaryKey" resultMap="BaseResultMap" parameterType="java.lang.Integer" >
        select 
        <include refid="Base_Column_List" />
        from tb_users
        where id = #{id,jdbcType=INTEGER}
      </select>
      <select id="selectAll" resultMap="BaseResultMap">
        select * from tb_users
      </select>
      <delete id="deleteByPrimaryKey" parameterType="java.lang.Integer" >
        delete from tb_users
        where id = #{id,jdbcType=INTEGER}
      </delete>
      <insert id="insert" parameterType="com.example.demo.model.User" >
        insert into tb_users (id, account, names, 
          password, rights, email, 
          phone, age, sex)
        values (#{id,jdbcType=INTEGER}, #{account,jdbcType=NVARCHAR}, #{names,jdbcType=NVARCHAR}, 
          #{password,jdbcType=NVARCHAR}, #{rights,jdbcType=NVARCHAR}, #{email,jdbcType=NVARCHAR}, 
          #{phone,jdbcType=NVARCHAR}, #{age,jdbcType=NVARCHAR}, #{sex,jdbcType=NVARCHAR})
      </insert>
      <insert id="insertSelective" parameterType="com.example.demo.model.User" >
        insert into tb_users
        <trim prefix="(" suffix=")" suffixOverrides="," >
          <if test="id != null" >
            id,
          </if>
          <if test="account != null" >
            account,
          </if>
          <if test="names != null" >
            names,
          </if>
          <if test="password != null" >
            password,
          </if>
          <if test="rights != null" >
            rights,
          </if>
          <if test="email != null" >
            email,
          </if>
          <if test="phone != null" >
            phone,
          </if>
          <if test="age != null" >
            age,
          </if>
          <if test="sex != null" >
            sex,
          </if>
        </trim>
        <trim prefix="values (" suffix=")" suffixOverrides="," >
          <if test="id != null" >
            #{id,jdbcType=INTEGER},
          </if>
          <if test="account != null" >
            #{account,jdbcType=NVARCHAR},
          </if>
          <if test="names != null" >
            #{names,jdbcType=NVARCHAR},
          </if>
          <if test="password != null" >
            #{password,jdbcType=NVARCHAR},
          </if>
          <if test="rights != null" >
            #{rights,jdbcType=NVARCHAR},
          </if>
          <if test="email != null" >
            #{email,jdbcType=NVARCHAR},
          </if>
          <if test="phone != null" >
            #{phone,jdbcType=NVARCHAR},
          </if>
          <if test="age != null" >
            #{age,jdbcType=NVARCHAR},
          </if>
          <if test="sex != null" >
            #{sex,jdbcType=NVARCHAR},
          </if>
        </trim>
      </insert>
      <update id="updateByPrimaryKeySelective" parameterType="com.example.demo.model.User" >
        update tb_users
        <set >
          <if test="account != null" >
            account = #{account,jdbcType=NVARCHAR},
          </if>
          <if test="names != null" >
            names = #{names,jdbcType=NVARCHAR},
          </if>
          <if test="password != null" >
            password = #{password,jdbcType=NVARCHAR},
          </if>
          <if test="rights != null" >
            rights = #{rights,jdbcType=NVARCHAR},
          </if>
          <if test="email != null" >
            email = #{email,jdbcType=NVARCHAR},
          </if>
          <if test="phone != null" >
            phone = #{phone,jdbcType=NVARCHAR},
          </if>
          <if test="age != null" >
            age = #{age,jdbcType=NVARCHAR},
          </if>
          <if test="sex != null" >
            sex = #{sex,jdbcType=NVARCHAR},
          </if>
        </set>
        where id = #{id,jdbcType=INTEGER}
      </update>
      <update id="updateByPrimaryKey" parameterType="com.example.demo.model.User" >
        update tb_users
        set account = #{account,jdbcType=NVARCHAR},
          names = #{names,jdbcType=NVARCHAR},
          password = #{password,jdbcType=NVARCHAR},
          rights = #{rights,jdbcType=NVARCHAR},
          email = #{email,jdbcType=NVARCHAR},
          phone = #{phone,jdbcType=NVARCHAR},
          age = #{age,jdbcType=NVARCHAR},
          sex = #{sex,jdbcType=NVARCHAR}
        where id = #{id,jdbcType=INTEGER}
      </update>
    </mapper>

**添加Html文件：SelectUsers.html**

<!DOCTYPE html>
    <html lang="en" xmlns:th="http://www.thymeleaf.org">
    <head>
        <meta charset="UTF-8">
        <title>Title</title>
    </head>
    <body>
    
    <table>
        <tr th:each="users:${users}">
            <td th:text="${users.getAccount()}">1</td><br>
    
        </tr>
    
    </table>
    
    
    </body>
    </html>

### 项目创建完成，结构如下 ###

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjE3NjYzOQ_size_16_color_FFFFFF_t_70 7]

### 运行项目并访问： ###

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjE3NjYzOQ_size_16_color_FFFFFF_t_70 8]  
**访问：**  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjE3NjYzOQ_size_16_color_FFFFFF_t_70 9]

### 初次创建，如有错误欢迎批评指正 ###

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[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjE3NjYzOQ_size_16_color_FFFFFF_t_70 1]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/18/02b29333a8a44a8f97eb1ccb57129dc8.png
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[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjE3NjYzOQ_size_16_color_FFFFFF_t_70 4]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/18/94452872c16d4aa7ad74232d1d9cb85c.png
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[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjE3NjYzOQ_size_16_color_FFFFFF_t_70 6]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/18/458755d6beec4430bd7d363eebc64256.png
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