spring boot纯注解开发模板
简介
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spring boot纯注解开发模板
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创建项目
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pom.xml导入所需依赖
点击查看源码
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>2.1.4</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<!-- 自动打包-->
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<excludes>
<exclude>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</exclude>
</excludes>
</configuration>
</plugin>
<!-- maven编译 -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.1</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-resources-plugin</artifactId>
<version>3.1.0</version>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.22.1</version>
<configuration>
<skipTests>true</skipTests>
</configuration>
</plugin>
</plugins>
</build>
- 将application文件的后缀改为yml，配置服务器端口和数据库连接池、视图解析、驼峰命名自动映射、日志记录
点击查看源码
# 端口
server:
port: 8080
# 配置数据源
spring:
application:
name: springboot01 # 项目名
datasource:
driver-class-name: com.mysql.cj.jdbc.Driver
url: jdbc:mysql://localhost:3306/springboot?characterEncoding=utf-8&serverTimezone=UTC
username: root
password: root
mvc: # 视图解析
view:
suffix: ".html"
# 开启驼峰命名自动映射
mybatis:
configuration:
map-underscore-to-camel-case: true
# 配置日志记录
logging:
level:
com:
chnq:
springboot01: debug
- 启动类：Springboot01Application
- 控制层新建一个RouterController测试路由跳转
点击查看源码
@Controller
public class RouterController {
/**
* 转发到 /login路由
*/
@RequestMapping("/register")
public String hello(){
return "forward:/login";
}
/**
* 访问静态资源中名称为login的文件
*/
@RequestMapping("/login")
public String hello1(){
return "login";
}
/**
* 重定向到index.html
*/
@GetMapping("/index")
public String hello2(){
return "redirect:/index.html";
}
/**
* 返回的是数据
*/
@GetMapping("/goIndex")
@ResponseBody
public String hello3(){
return "index";
}
}
业务编写
- mapper层：UserMapper，接口+注解的方式，构建器处理复杂sql
- model层：User,创建项目时导入依赖lombok，使用@Geter+@Setter注解，表示自动生成getter和setter方法
- service层：UserService类，标注为业务层，注入mapper层对象，处理业务逻辑
- 控制器：UserController类，注入业务层对象，处理请求跳转
- 工具类：RespResult类，响应给前端的数据
测试
- mysql导入sql脚本，idea导入springboot01
- 启动项目后，打开cmd，输入：curl -d userName=admin http://localhost:8080/searchUser
