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SpringMVC 集成 mybatisPlus

發布時間：2024/9/27 javascript 30 豆豆

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文章目錄

- 一、基礎配置
- - 1. pom
  - 2. web.xml
- 二、配置文件
- - 2.1.spring-context.xml
  - 2.2. spring-datasource.xml
  - 2.3. spring-mvc.xml
  - 2.4. jdbc.properties
  - 2.5. logback.xml
- 三、基礎類
- - 3.1. 實體類
  - 3.2. 接口類
  - 3.3. 接口映射xml
  - 3.4. service接口
  - 3.5. 接口實現類
  - 3.6. 控制層
- 四、數據庫方面
- - 4.1. 創建數據庫
  - 4.2. 初始化表結構
- 五、瀏覽器驗證
- - 5.1. 啟動項目
  - 5.2. 瀏覽器測試
  - 5.3. 源碼地址

一、基礎配置

1. pom

<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/maven-v4_0_0.xsd"><modelVersion>4.0.0</modelVersion><groupId>com.gblfy</groupId><artifactId>ssm-upgrade</artifactId><packaging>war</packaging><version>1.0-SNAPSHOT</version><name>ssm-upgrade</name><properties><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding><project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding><maven.compiler.encoding>UTF-8</maven.compiler.encoding><lombok.version>1.18.8</lombok.version><spring.version>4.3.10.RELEASE</spring.version><javax.servlet.version>4.0.1</javax.servlet.version><jstl.version>1.2</jstl.version><org.mybatis.version>3.4.1</org.mybatis.version><org.mybatis.spring.version>1.3.0</org.mybatis.spring.version></properties><dependencies><dependency><groupId>aspectj</groupId><artifactId>aspectjweaver</artifactId><version>1.5.4</version></dependency><dependency><groupId>javax.servlet</groupId><artifactId>javax.servlet-api</artifactId><version>${javax.servlet.version}</version></dependency><dependency><groupId>javax.servlet</groupId><artifactId>jstl</artifactId><version>${jstl.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-core</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-beans</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-context</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-jdbc</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-tx</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-web</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-webmvc</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-test</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-aop</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-oxm</artifactId><version>${spring.version}</version></dependency><dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-databind</artifactId><version>2.9.2</version></dependency><dependency><groupId>com.baomidou</groupId><artifactId>mybatis-plus</artifactId><version>3.3.1.tmp</version></dependency><dependency><groupId>org.aspectj</groupId><artifactId>aspectjrt</artifactId><version>1.6.11</version></dependency><dependency><groupId>commons-dbcp</groupId><artifactId>commons-dbcp</artifactId><version>1.4</version></dependency><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId><scope>provided</scope><version>${lombok.version}</version></dependency><dependency><groupId>org.slf4j</groupId><artifactId>slf4j-api</artifactId><version>1.7.26</version></dependency><dependency><groupId>ch.qos.logback</groupId><artifactId>logback-classic</artifactId><version>1.2.3</version><exclusions><exclusion><artifactId>slf4j-api</artifactId><groupId>org.slf4j</groupId></exclusion></exclusions></dependency><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><version>8.0.19</version></dependency><dependency><groupId>com.google.guava</groupId><artifactId>guava</artifactId><version>20.0</version></dependency><dependency><groupId>org.apache.commons</groupId><artifactId>commons-lang3</artifactId><version>3.5</version></dependency><dependency><groupId>commons-collections</groupId><artifactId>commons-collections</artifactId><version>3.2.1</version></dependency><dependency><groupId>junit</groupId><artifactId>junit</artifactId><version>4.12</version></dependency><dependency><groupId>joda-time</groupId><artifactId>joda-time</artifactId><version>2.3</version></dependency><dependency><groupId>commons-net</groupId><artifactId>commons-net</artifactId><version>3.1</version></dependency><dependency><groupId>commons-fileupload</groupId><artifactId>commons-fileupload</artifactId><version>1.2.2</version></dependency><dependency><groupId>commons-io</groupId><artifactId>commons-io</artifactId><version>2.0.1</version></dependency></dependencies><build><finalName>ssm-upgrade</finalName><plugins><plugin><groupId>org.apache.maven.plugins</groupId><artifactId>maven-compiler-plugin</artifactId><version>3.8.1</version><configuration><source>1.7</source><target>1.7</target><encoding>UTF-8</encoding><compilerArguments><extdirs>${project.basedir}/src/main/webapp/WEB-INF/lib</extdirs></compilerArguments></configuration></plugin><plugin><groupId>org.apache.tomcat.maven</groupId><artifactId>tomcat7-maven-plugin</artifactId><version>2.2</version><configuration><path>/</path><port>8080</port><uriEncoding>UTF-8</uriEncoding><contextReloadable>true</contextReloadable></configuration></plugin></plugins></build><repositories><repository><id>maven-ali</id><url>http://maven.aliyun.com/nexus/content/groups/public//</url><releases><enabled>true</enabled></releases><snapshots><enabled>true</enabled><updatePolicy>always</updatePolicy><checksumPolicy>fail</checksumPolicy></snapshots></repository></repositories></project>

2. web.xml

<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xmlns="http://java.sun.com/xml/ns/javaee"xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"id="WebApp_ID" version="2.5"><display-name>Archetype Created Web Application</display-name><filter><filter-name>characterEncodingFilter</filter-name><filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class><init-param><param-name>encoding</param-name><param-value>UTF-8</param-value></init-param><init-param><param-name>forceEncoding</param-name><param-value>true</param-value></init-param></filter><filter-mapping><filter-name>characterEncodingFilter</filter-name><url-pattern>/*</url-pattern></filter-mapping><listener><listener-class>org.springframework.web.context.request.RequestContextListener</listener-class></listener><listener><listener-class>org.springframework.web.context.ContextLoaderListener</listener-class></listener><context-param><param-name>contextConfigLocation</param-name><param-value>/WEB-INF/config/spring-*.xml</param-value></context-param><servlet><servlet-name>dispatcher</servlet-name><servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class><init-param><param-name>contextConfigLocation</param-name><param-value>/WEB-INF/config/spring-mvc.xml</param-value></init-param><load-on-startup>1</load-on-startup></servlet><servlet-mapping><servlet-name>dispatcher</servlet-name><url-pattern>/</url-pattern></servlet-mapping></web-app>

二、配置文件

企業中的配置文件一般會放在WEB-INF下面，因為外部請求不到

2.1.spring-context.xml

2.2. spring-datasource.xml

<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xmlns:tx="http://www.springframework.org/schema/tx"xmlns:context="http://www.springframework.org/schema/context"xsi:schemaLocation="http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsdhttp://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsdhttp://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd"><context:component-scan base-package="com.gblfy" annotation-config="true"/><context:property-placeholder location="/WEB-INF/config/jdbc.properties"/><bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"><property name="driverClassName" value="${db.driverClassName}"/><property name="url" value="${db.url}"/><property name="username" value="${db.username}"/><property name="password" value="${db.password}"/><property name="initialSize" value="${db.initialSize}"/><property name="maxActive" value="${db.maxActive}"/><property name="maxIdle" value="${db.maxIdle}"/><property name="minIdle" value="${db.minIdle}"/><property name="maxWait" value="${db.maxWait}"/><property name="defaultAutoCommit" value="${db.defaultAutoCommit}"/><property name="minEvictableIdleTimeMillis" value="${db.minEvictableIdleTimeMillis}"/><property name="timeBetweenEvictionRunsMillis" value="40000"/><property name="testWhileIdle" value="true"/><property name="validationQuery" value="SELECT 1 FROM dual"/></bean><bean id="sqlSessionFactory" class="com.baomidou.mybatisplus.extension.spring.MybatisSqlSessionFactoryBean"><property name="dataSource" ref="dataSource"/><property name="mapperLocations" value="classpath*:mapper/*Mapper.xml"></property></bean><bean name="mapperScannerConfigurer" class="org.mybatis.spring.mapper.MapperScannerConfigurer"><property name="basePackage" value="com.gblfy.dao"/></bean><tx:annotation-driven transaction-manager="transactionManager" proxy-target-class="true"/><bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"><property name="dataSource" ref="dataSource"/><property name="rollbackOnCommitFailure" value="true"/></bean></beans>

2.3. spring-mvc.xml

2.4. jdbc.properties

#數據庫連接 #適用于mysql 6.x及以上 db.driverClassName=com.mysql.cj.jdbc.Driver db.url=jdbc:mysql://localhost:3306/ssm?autoReconnect=true&useUnicode=true&characterEncoding=utf8&zeroDateTimeBehavior=CONVERT_TO_NULL&useSSL=false&serverTimezone=CTT db.username=root db.password=rootdb.initialSize = 20 db.maxActive = 50 db.maxIdle = 20 db.minIdle = 10 db.maxWait = 10 db.defaultAutoCommit = true db.minEvictableIdleTimeMillis = 3600000

2.5. logback.xml

此文件放在resources下面

<?xml version="1.0" encoding="UTF-8"?> <configuration scan="true" scanPeriod="60 seconds" debug="false"><property name="log.level" value="debug"/><property name="log.maxHistory" value="30"/><property name="log.filePath" value="${catalina.base}/logs/webapps"/><property name="log.pattern"value="%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} - %msg%n"/><appender name="consoleAppender" class="ch.qos.logback.core.ConsoleAppender"><encoder><pattern>${log.pattern}</pattern></encoder></appender><appender name="debugAppender" class="ch.qos.logback.core.rolling.RollingFileAppender"><file>${log.filePath}/debug.log</file><rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy"><fileNamePattern>${log.filePath}/debug/debug.%d{yyyy-MM-dd}.log.gz</fileNamePattern><maxHistory>${log.maxHistory}</maxHistory></rollingPolicy><encoder><pattern>${log.pattern}</pattern></encoder><filter class="ch.qos.logback.classic.filter.LevelFilter"><level>DEBUG</level><onMatch>ACCEPT</onMatch><onMismatch>DENY</onMismatch></filter></appender><appender name="infoAppender" class="ch.qos.logback.core.rolling.RollingFileAppender"><file>${log.filePath}/info.log</file><rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy"><fileNamePattern>${log.filePath}/info/info.%d{yyyy-MM-dd}.log.gz</fileNamePattern><maxHistory>${log.maxHistory}</maxHistory></rollingPolicy><encoder><pattern>${log.pattern}</pattern></encoder><filter class="ch.qos.logback.classic.filter.LevelFilter"><level>INFO</level><onMatch>ACCEPT</onMatch><onMismatch>DENY</onMismatch></filter></appender><logger name="com.gblfy.order" level="${log.level}" additivity="true"><appender-ref ref="debugAppender"/><appender-ref ref="infoAppender"/></logger><root level="info"><appender-ref ref="consoleAppender"/></root> </configuration>

三、基礎類

3.1. 實體類

package com.gblfy.entity;import com.baomidou.mybatisplus.annotation.TableName; import com.baomidou.mybatisplus.extension.activerecord.Model; import lombok.AllArgsConstructor; import lombok.Builder; import lombok.Data; import lombok.NoArgsConstructor;@Data @AllArgsConstructor @NoArgsConstructor @Builder @TableName("user") public class User extends Model<User> {private Long id;private String name;private Integer age;private String email;}

3.2. 接口類

package com.gblfy.dao;import com.baomidou.mybatisplus.core.mapper.BaseMapper; import com.gblfy.entity.User;public interface UserMapper extends BaseMapper<User> { }

3.3. 接口映射xml

此文件放在resources下面的mapper目錄下面
這個配置自定義

<?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.gblfy.dao.UserMapper"><resultMap type="com.gblfy.entity.User" id="UserMap"><result property="id" column="id" jdbcType="INTEGER"/><result property="name" column="name" jdbcType="VARCHAR"/><result property="age" column="age" jdbcType="INTEGER"/><result property="email" column="email" jdbcType="VARCHAR"/></resultMap> </mapper>

3.4. service接口

package com.gblfy.service;import com.baomidou.mybatisplus.extension.service.IService; import com.gblfy.entity.User;public interface UserService extends IService<User> { }

3.5. 接口實現類

package com.gblfy.service.impl;import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl; import com.gblfy.dao.UserMapper; import com.gblfy.entity.User; import com.gblfy.service.UserService; import org.springframework.stereotype.Service;@Service("userService") public class UserServiceImpl extends ServiceImpl<UserMapper,User> implements UserService { }

3.6. 控制層

package com.gblfy.controller;import com.gblfy.entity.User; import com.gblfy.service.UserService; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController;import javax.annotation.Resource; import java.util.List;@RestController @RequestMapping("user") public class UserController {/*** 服務對象*/@Resourceprivate UserService userService;/*** 通過主鍵查詢單條數據** @param id 主鍵* @return 單條數據*/@GetMapping("selectUserById")public User selectUserById(Long id) {return this.userService.getById(id);}/*** 查詢用戶列表** @return List<User>*/@GetMapping("queryList")public List<User> queryList() {return this.userService.list();}}

四、數據庫方面

4.1. 創建數據庫

創建ssm數據庫編碼格式為utf-8

4.2. 初始化表結構

/*Navicat Premium Data TransferSource Server : 127.0.0.1Source Server Type : MySQLSource Server Version : 50721Source Host : 127.0.0.1:3306Source Schema : ssmTarget Server Type : MySQLTarget Server Version : 50721File Encoding : 65001Date: 14/03/2020 20:23:26 */SET NAMES utf8mb4; SET FOREIGN_KEY_CHECKS = 0;-- ---------------------------- -- Table structure for user -- ---------------------------- DROP TABLE IF EXISTS `user`; CREATE TABLE `user` (`id` bigint(20) NOT NULL COMMENT '主鍵ID',`name` varchar(30) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL COMMENT '姓名',`age` int(11) NULL DEFAULT NULL COMMENT '年齡',`email` varchar(50) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL COMMENT '郵箱',PRIMARY KEY (`id`) USING BTREE ) ENGINE = InnoDB CHARACTER SET = utf8 COLLATE = utf8_bin ROW_FORMAT = Dynamic;-- ---------------------------- -- Records of user -- ---------------------------- INSERT INTO `user` VALUES (1, 'Jone', 18, 'test1@baomidou.com'); INSERT INTO `user` VALUES (2, 'Jack', 20, 'test2@baomidou.com'); INSERT INTO `user` VALUES (3, 'Tom', 28, 'test3@baomidou.com'); INSERT INTO `user` VALUES (4, '郭軒', 26, 'test4@baomidou.com'); INSERT INTO `user` VALUES (5, '郭振', 26, 'test5@baomidou.com'); INSERT INTO `user` VALUES (1238735228017610754, '郭雨昕', 2, 'gblfy@qq.com'); INSERT INTO `user` VALUES (1238735794525503489, '郭雨澤', 22, 'gblfy@qq.com');SET FOREIGN_KEY_CHECKS = 1;

五、瀏覽器驗證

5.1. 啟動項目

5.2. 瀏覽器測試

http://localhost:8080/user/queryList

5.3. 源碼地址

https://gitee.com/gb_90/ssm-upgrade

項目布局：

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