废话少说直接使用idea搭建一个springboot+mybatis的工程
1.搭建工程按照图片一步一步next就可以了，中间需要选着的地方会截图
在最后完成简单工程的搭建之后先完善下工程的目录结构：
在pom文件中添加依赖：
<?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> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.1.3.RELEASE</version> <relativePath/> <!-- lookup parent from repository --> </parent> <groupId>com.springboot.demo</groupId> <artifactId>springboot-demo</artifactId> <version>0.0.1-SNAPSHOT</version> <name>springboot-demo</name> <packaging>war</packaging> <description>Demo project for Spring Boot</description> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> <mybatis-spring-boot.version>2.0.0</mybatis-spring-boot.version> <mysql-connector.version>5.1.24</mysql-connector.version> <java.version>1.8</java.version> <fastjson.version>1.2.56</fastjson.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> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-thymeleaf</artifactId> </dependency> <dependency> <groupId>org.mybatis.spring.boot</groupId> <artifactId>mybatis-spring-boot-starter</artifactId> <version>${mybatis-spring-boot.version}</version> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>${mysql-connector.version}</version> </dependency> <dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>${fastjson.version}</version> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build> </project>
玩springboot的都知道最重要的一个配置文件就是application.properties
server.port=18080 #数据库链接配置信息 spring.datasource.url = jdbc:mysql://127.0.0.1:3306/spring-boot?useUnicode=true&characterEncoding=utf8 spring.datasource.driver-class-name = com.mysql.jdbc.Driver spring.datasource.username = root spring.datasource.password = tangbing ##视图层控制 用mvc方式访问tempaltes下面的html文件 spring.mvc.view.prefix=classpath:/templates/ spring.mvc.view.suffix=.html spring.mvc.static-path-pattern=/static/** ##thymeleaf这样配置就可以直接访问static下的HTML(和mvc访问方式二选一) #spring.thymeleaf.prefix = classpath:/static/, classpath:/tempaltes/ #spring.thymeleaf.suffix = .html spring.thymeleaf.mode = HTML5 spring.thymeleaf.encoding = UTF-8 spring.thymeleaf.servlet.content-type = text/html #缓存 (开发是关闭，。。。。。) spring.thymeleaf.cache = false #mybatis配置 mybatis.configuration.use-generated-keys= true # 不配置找不到mapper对用的xml mybatis.mapper-locations=classpath:com/springboot/demo/MET-INFO/mybatis-mapper/*.xml
接下来就做下测试
/** * 文件名: testController.java * 版 权: Copyright © 2013 - 2019 CFNE, Inc. All Rights Reserved * 描 述: <描述> * 修改人: BING.TANG * 修改时间: 2019/3/7 * 跟踪单号: <跟踪单号> * 修改单号: <修改单号> * 修改内容: <修改内容> */ package com.springboot.demo.contorller; import com.alibaba.fastjson.JSONObject; import com.springboot.demo.api.service.IUserService; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.PathVariable; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.ResponseBody; import javax.annotation.Resource; /** * 功能描述 : * @author BING.TANG * @version [版本号, 2019/3/7] * @see [相关类/方法] * @since [产品/模板版本号] */ @Controller public class testController { @Resource(name = IUserService.BEAN_ID) private IUserService userService; @RequestMapping("/index") public String index() { return "index"; } @RequestMapping("/queryUserById/{id}") @ResponseBody public JSONObject queryUserById(@PathVariable String id){ return this.userService.queryUserById(id); } }
这里说下想访问templates下面的静态资源文件的话不能用@RestController注解，因为RestController = Controller + ResponseBody，这样就会直接返回数据。
service的实现类：
/** * 文件名: UserServiceImpl.java * 版 权: Copyright © 2013 - 2019 CFNE, Inc. All Rights Reserved * 描 述: <描述> * 修改人: BING.TANG * 修改时间: 2019/3/7 * 跟踪单号: <跟踪单号> * 修改单号: <修改单号> * 修改内容: <修改内容> */ package com.springboot.demo.service.impl; import com.alibaba.fastjson.JSONObject; import com.springboot.demo.api.domain.User; import com.springboot.demo.api.service.IUserService; import com.springboot.demo.service.mapper.UserMapper; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; /** * 功能描述 : * @author BING.TANG * @version [版本号, 2019/3/7] * @see [相关类/方法] * @since [产品/模板版本号] */ @Service(IUserService.BEAN_ID) public class UserServiceImpl implements IUserService { @Autowired private UserMapper userMapper; @Override public JSONObject queryUserById(String id) { try { User user = this.userMapper.selectUser(id); return JSONObject.parseObject(JSONObject.toJSON(user).toString()); } catch (Exception e){ e.printStackTrace(); throw e; } } }
mapper文件
/** * 文件名: UserMapper.java * 版 权: Copyright © 2013 - 2019 CFNE, Inc. All Rights Reserved * 描 述: <描述> * 修改人: BING.TANG * 修改时间: 2019/3/7 * 跟踪单号: <跟踪单号> * 修改单号: <修改单号> * 修改内容: <修改内容> */ package com.springboot.demo.service.mapper; import com.springboot.demo.api.domain.User; import org.apache.ibatis.annotations.Param; import org.springframework.stereotype.Repository; /** * 功能描述 : * @author BING.TANG * @version [版本号, 2019/3/7] * @see [相关类/方法] * @since [产品/模板版本号] */ @Repository public interface UserMapper { User selectUser(@Param("id") String id); }
代码写到这里也可以做下简单的测试了：访问controller的index
最终返回的是templates下面的index页面。而访问/queryUserById/{id}返回的就是个json数据
到这里第一个简单的springboot+mybatis工程就算搭建成功了