目录

一:Spring Boot 使用Swagger2构建RESTful API

二:Springboot整合Mybatis

三:Spring Boot 整合 Dubbo

四:Spring Boot 整合 Elasticsearch


一:Spring Boot 使用Swagger2构建RESTful API

 1.版本说明

         springboot版本: <version>2.2.2.RELEASE</version>

         swagger2版本:   <version>2.9.2</version>

       说明:在springboot整合swaggger2时,注意springboot版本和swagger2版本关系,否则启动会失败,报如下类似错误:

Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2020-03-26 11:35:44.287 ERROR 11728 --- [           main] o.s.b.d.LoggingFailureAnalysisReporter   : 

***************************
APPLICATION FAILED TO START
***************************

Description:

Parameter 0 of method linkDiscoverers in org.springframework.hateoas.config.HateoasConfiguration required a single bean, but 15 were found:
	- modelBuilderPluginRegistry: defined in null
	- modelPropertyBuilderPluginRegistry: defined in null
	- typeNameProviderPluginRegistry: defined in null
	- documentationPluginRegistry: defined in null

 2.注解说明

             参考: swagger2 注解整体说明1

             参考:swagger2 注解说明2

二:Springboot整合Mybatis

0.注解说明

@Mapper 标志接口为 MyBatis Mapper 接口

@Select 是 Select 操作语句

@Results 标志结果集,以及与库表字段的映射关系 

@MapperScan ("指定mapper接口包路径")   mapper接口扫描,配置到springboot启动类上

1.添加依赖

<!--springboot 整合mybaits-->
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>1.3.2</version>
</dependency>

2.application.properties添加mybaits配置

## Mybatis 配置
mybatis.typeAliasesPackage=com.gm.springmvcdemo.domain
mybatis.mapperLocations=classpath:mapper/*.xml

   其他相关配置详解:

mybatis.config = mybatis 配置文件名称
mybatis.mapperLocations = mapper xml 文件地址
mybatis.typeAliasesPackage = 实体类包路径
mybatis.typeHandlersPackage = type handlers 处理器包路径
mybatis.check-config-location = 检查 mybatis 配置是否存在,一般命名为 mybatis-config.xml
mybatis.executorType = 执行模式。默认是 SIMPLE

3.启动类添加注解@MapperScan

@SpringBootApplication  //启动类
@MapperScan("com.gm.springmvcdemo.dao")    // mapper 接口类扫描包配置
public class SpringmvcdemoApplication{

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

}

4.Controller层

@RestController
@RequestMapping("/user")
public class UserController {
    Logger logger = LoggerFactory.getLogger(UserController.class);

    @Autowired
    public UserService userService;

    @RequestMapping(value ="/query", method = {RequestMethod.POST})
    public List<User> queryUsers(@RequestParam String name){
        logger.info("查询用户:"+name);
        return  userService.getUserByName(name);
    }



}

5. Servcie 业务以及业务实现

public interface UserService {
    /**
    * @Author gaoming 
    * @Description 根据用户名查询用户
    * @Date  
    * @Param 
    * @return java.util.List<com.gm.springmvcdemo.domain.User>
    **/
    List<User> getUserByName(String name);
}

@Service
public class UserServiceImpl implements UserService{
    @Autowired
    UserMapper userMapper;
    @Override
    public List<User> getUserByName(String name) {
        return userMapper.getUserByName(name);
    }
}

.6. Dao层  mapper接口

@Mapper
public interface UserMapper {

    //查用户名
    List<User> getUserByName(String name);
}

7.工程结构

工程代码:https://github.com/gaoming-tai/springboot-learning-example/tree/master/springboot 

参考:Springboot 整合 Mybatis 的完整 Web 案例

 

三:Spring Boot 整合 Dubbo

TODO: 待更新

四:Spring Boot 整合 Elasticsearch

TODO: 待更新

 

 

 

 

 

 

 

 

 

 

   

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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