Spring Boot整合Mybatis-Plus和PageHelper分页插件,附项目源码

xiaoxiao2025-10-15  6

1 pom.xml配置文件

<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.example</groupId> <artifactId>demo</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>jar</packaging> <name>demo</name> <description>Demo project for Spring Boot</description> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.0.6.RELEASE</version> <relativePath/> <!-- lookup parent from repository --> </parent> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> <java.version>1.8</java.version> <fastjson.version>1.2.38</fastjson.version> <mybatisplus.version>2.2.0</mybatisplus.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> <!--json--> <dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>${fastjson.version}</version> </dependency> <!-- Mybatis Plus --> <dependency> <groupId>com.baomidou</groupId> <artifactId>mybatis-plus-boot-starter</artifactId> <version>${mybatisplus.version}</version> </dependency> <!-- Mybatis 代码生成器(模板引擎) --> <dependency> <groupId>org.apache.velocity</groupId> <artifactId>velocity</artifactId> <version>1.7</version> </dependency> <dependency> <groupId>org.freemarker</groupId> <artifactId>freemarker</artifactId> <version>2.3.28</version> </dependency> <!-- Mysql --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.47</version> </dependency> <!--pagehelper --> <dependency> <groupId>com.github.pagehelper</groupId> <artifactId>pagehelper-spring-boot-starter</artifactId> <version>1.2.3</version> </dependency> <!-- 用于部署war包 --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-tomcat</artifactId> <!--<scope>provided</scope>--> </dependency> <!-- AOP --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-aop</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> </dependencies> <build> <!-- 此处可配置最终的war包名称 --> <finalName>demo</finalName> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build> </project>

 

2 application.yml文件

# Config Server server: address: localhost port: 8080 servlet: context-path: / spring: # AOP Config aop: auto: true datasource: url: jdbc:mysql://127.0.0.1:3306/ssm?useUnicode=true&characterEncoding=UTF-8&useSSL=false username: root password: 123456 driver-class-name: com.mysql.jdbc.Driver # Mybatis-Plus Config http://mp.baomidou.com/#/spring-boot mybatis-plus: mapper-locations: classpath:/mapper/*Mapper.xml typeAliasesPackage: com.example.entity global-config: id-type: 2 field-strategy: 0 db-column-underline: true refresh-mapper: true configuration: map-underscore-to-camel-case: true cache-enabled: true #pagehelper分页插件配置 pagehelper: helperDialect: postgresql #设置sql语言 reasonable: true supportMethodsArguments: true params: count=countSql

 

3 mapper包扫描配置

@EnableTransactionManagement @Configuration @MapperScan("com.example.mapper*") public class MybatisPlusConfig { }

 

4 Mybatis-Plus代码生成器(发电机)

/** * Created by ellen on 2018/10/24. */ public class MpGenerator { /** * <p> * MySQL 生成演示 * </p> */ public static void main(String[] args) { AutoGenerator mpg = new AutoGenerator(); // 全局配置 GlobalConfig gc = new GlobalConfig(); gc.setOutputDir("D://"); gc.setFileOverride(true); gc.setActiveRecord(true); gc.setEnableCache(false); // XML 二级缓存 gc.setBaseResultMap(true); // XML ResultMap gc.setBaseColumnList(true); // XML columList gc.setAuthor("ellen"); // 自定义文件命名,注意 %s 会自动填充表实体属性! // gc.setMapperName("%sDao"); // gc.setXmlName("%sDao"); // gc.setServiceName("MP%sService"); // gc.setServiceImplName("%sServiceDiy"); // gc.setControllerName("%sAction"); mpg.setGlobalConfig(gc); // 数据源配置 DataSourceConfig dsc = new DataSourceConfig(); dsc.setDbType(DbType.MYSQL); dsc.setTypeConvert(new MySqlTypeConvert() { // 自定义数据库表字段类型转换【可选】 @Override public DbColumnType processTypeConvert(String fieldType) { System.out.println("转换类型:" + fieldType); // 注意!!processTypeConvert 存在默认类型转换,如果不是你要的效果请自定义返回、非如下直接返回。 return super.processTypeConvert(fieldType); } }); dsc.setDriverName("com.mysql.jdbc.Driver"); dsc.setUsername("root"); dsc.setPassword("123456"); dsc.setUrl("jdbc:mysql://127.0.0.1/ssm?useUnicode=true&characterEncoding=UTF-8"); mpg.setDataSource(dsc); // 策略配置 StrategyConfig strategy = new StrategyConfig(); // strategy.setCapitalMode(true);// 全局大写命名 ORACLE 注意 // strategy.setTablePrefix(new String[] { "tlog_", "tsys_" });// 此处可以修改为您的表前缀 //strategy.setTablePrefix(new String[] { "tb_"});// 此处可以修改为您的表前缀 strategy.setNaming(NamingStrategy.underline_to_camel);// 表名生成策略 strategy.setInclude(new String[]{"student"}); // 需要生成的表 // strategy.setExclude(new String[]{"test"}); // 排除生成的表 // 自定义实体父类 //strategy.setSuperEntityClass("com.kuyunEduShop.domain"); // 自定义实体,公共字段 // strategy.setSuperEntityColumns(new String[] { "test_id", "age" }); // 自定义 mapper 父类 // strategy.setSuperMapperClass("com.baomidou.demo.TestMapper"); // 自定义 service 父类 // strategy.setSuperServiceClass("com.baomidou.demo.TestService"); // 自定义 service 实现类父类 // strategy.setSuperServiceImplClass("com.baomidou.demo.TestServiceImpl"); // 自定义 controller 父类 // strategy.setSuperControllerClass("com.baomidou.demo.TestController"); // 【实体】是否生成字段常量(默认 false) // public static final String ID = "test_id"; // strategy.setEntityColumnConstant(true); // 【实体】是否为构建者模型(默认 false) // public User setName(String name) {this.name = name; return this;} // strategy.setEntityBuilderModel(true); mpg.setStrategy(strategy); // 包配置 PackageConfig pc = new PackageConfig(); pc.setParent("com"); pc.setModuleName("example"); mpg.setPackageInfo(pc); // 注入自定义配置,可以在 VM 中使用 cfg.abc 【可无】 /* InjectionConfig cfg = new InjectionConfig() { @Override public void initMap() { Map<String, Object> map = new HashMap<String, Object>(); map.put("abc", this.getConfig().getGlobalConfig().getAuthor() + "-mp"); this.setMap(map); } }; /* // 自定义 xxList.jsp 生成 List<FileOutConfig> focList = new ArrayList<FileOutConfig>(); focList.add(new FileOutConfig("/template/list.jsp.vm") { @Override public String outputFile(TableInfo tableInfo) { // 自定义输入文件名称 return "D://my_" + tableInfo.getEntityName() + ".jsp"; } }); cfg.setFileOutConfigList(focList); mpg.setCfg(cfg); // 调整 xml 生成目录演示 focList.add(new FileOutConfig("/templates/mapper.xml.vm") { @Override public String outputFile(TableInfo tableInfo) { return "/develop/code/xml/" + tableInfo.getEntityName() + ".xml"; } }); cfg.setFileOutConfigList(focList); mpg.setCfg(cfg); */ // 关闭默认 xml 生成,调整生成 至 根目录 /* TemplateConfig tc = new TemplateConfig(); tc.setXml(null); mpg.setTemplate(tc);*/ // 自定义模板配置,可以 copy 源码 mybatis-plus/src/main/resources/templates 下面内容修改, // 放置自己项目的 src/main/resources/templates 目录下, 默认名称一下可以不配置,也可以自定义模板名称 // TemplateConfig tc = new TemplateConfig(); // tc.setController("..."); // tc.setEntity("..."); // tc.setMapper("..."); // tc.setXml("..."); // tc.setService("..."); // tc.setServiceImpl("..."); // 如上任何一个模块如果设置 空 OR Null 将不生成该模块。 // mpg.setTemplate(tc); // 执行生成 mpg.execute(); // 打印注入设置【可无】 // System.err.println(mpg.getCfg().getMap().get("abc")); } }

 

5 跨域请求配置

/** * 跨域配置 * @author http://www.spring4all.com/article/177 */ @Configuration public class CorsConfig { @Bean public WebMvcConfigurer corsConfigurer() { return new WebMvcConfigurerAdapter() { @Override //重写父类提供的跨域请求处理的接口 public void addCorsMappings(CorsRegistry registry) { //添加映射路径 registry.addMapping("/**") //放行哪些原始域 .allowedOrigins("*") //是否发送Cookie信息 .allowCredentials(true) //放行哪些原始域(请求方式) .allowedMethods("GET","POST", "PUT", "DELETE") //放行哪些原始域(头部信息) .allowedHeaders("*") //暴露哪些头部信息(因为跨域访问默认不能获取全部头部信息) .exposedHeaders("Header1", "Header2"); } }; } }

 

6 SpringBootApplication启动程序

@SpringBootApplication public class DemoApplication extends SpringBootServletInitializer { public static void main(String[] args) { SpringApplication.run(DemoApplication.class, args); } /** * 用于部署war包 * @param application * @return */ @Override protected SpringApplicationBuilder configure(SpringApplicationBuilder application) { return application.sources(DemoApplication.class); } }

 

7 项目源码地址

码云:https://gitee.com/ljf16/SpringBootDemo

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