标签：
springboot大家都知道了，搭建一个spring框架只需要秒秒钟。下面给大家介绍一下springboot与mybatis的完美融合：
首先：创建一个名为springboot-mybatis的maven项目，记住：一定要maven哦，不懂maven的可以自己恶补一下maven知识，这里就不介绍maven了。
下面给出pom.xml的完整配置：
1 <?xml version="1.0" encoding="UTF-8"?> 2 <project xmlns="http://maven.apache.org/POM/4.0.0" 3 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 4 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> 5 <modelVersion>4.0.0</modelVersion> 6 7 <groupId>springboot-mybatis</groupId> 8 <artifactId>springboot-mybatis</artifactId> 9 <version>1.0.0</version> 10 <packaging>war</packaging> 11 12 <name>springBoot-mybatis</name> 13 <description>Spring Boot project</description> 14 15 <parent> 16 <groupId>org.springframework.boot</groupId> 17 <artifactId>spring-boot-starter-parent</artifactId> 18 <version>1.3.2.RELEASE</version> 19 <relativePath/> 20 </parent> 21 22 <properties> 23 <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> 24 <java.version>1.8</java.version> 25 </properties> 26 27 <dependencies> 28 29 <dependency> 30 <groupId>org.springframework.boot</groupId> 31 <artifactId>spring-boot-starter</artifactId> 32 </dependency> 33 34 <dependency> 35 <groupId>org.springframework.boot</groupId> 36 <artifactId>spring-boot-starter-test</artifactId> 37 <scope>test</scope> 38 </dependency> 39 40 <dependency> 41 <groupId>org.mybatis.spring.boot</groupId> 42 <artifactId>mybatis-spring-boot-starter</artifactId> 43 <version>1.1.1</version> 44 </dependency> 45 46 <dependency> 47 <groupId>org.springframework.boot</groupId> 48 <artifactId>spring-boot-starter-web</artifactId> 49 </dependency> 50 51 <dependency> 52 <groupId>mysql</groupId> 53 <artifactId>mysql-connector-java</artifactId> 54 <version>5.1.21</version> 55 </dependency> 56 57 </dependencies> 58 59 <build> 60 <plugins> 61 <plugin> 62 <groupId>org.springframework.boot</groupId> 63 <artifactId>spring-boot-maven-plugin</artifactId> 64 </plugin> 65 <plugin> 66 <groupId>org.apache.maven.plugins</groupId> 67 <artifactId>maven-surefire-plugin</artifactId> 68 <configuration> 69 <skip>true</skip> 70 </configuration> 71 </plugin> 72 </plugins> 73 </build> 74 75 </project>
之后创建一个启动类：
1 package org.shenlan;
2
3 import org.springframework.boot.SpringApplication;
4 import org.springframework.boot.autoconfigure.SpringBootApplication;
5
6 /**
7 * Created by wangwei on 2016/9/2.
8 */
9 @SpringBootApplication
10 public class Application {
11 public static void main(String[] args){
12 SpringApplication.run(Application.class,args);
13 }
14 }
这样一个完整的springboot项目就完成了，是不是很简单。
接下来就可以整理与mybatis的东东了。
首先，创建配置文件：application.properties
1 spring.datasource.url=jdbc:mysql://localhost:3306/test 2 spring.datasource.username=root 3 spring.datasource.password=root 4 spring.datasource.driver-class-name=com.mysql.jdbc.Driver 5 6 server.port=1111
这里server.port=1111是定义了改项目的端口，默认的是8080.
然后，定义一个java的实体类：
1 package org.shenlan.web;
2
3 /**
4 * Created by wangwei on 2016/9/2.
5 */
6 public class User {
7 private Integer id;
8 private String name;
9 private Integer age;
10
11 public Integer getId() {
12 return id;
13 }
14
15 public void setId(Integer id) {
16 this.id = id;
17 }
18
19 public String getName() {
20 return name;
21 }
22
23 public void setName(String name) {
24 this.name = name;
25 }
26
27 public Integer getAge() {
28 return age;
29 }
30
31 public void setAge(Integer age) {
32 this.age = age;
33 }
34 }
这里实体类的字段要和数据库的字段对应起来，不然就要取别名了。
之后，定义一个dao的接口：
1 package org.shenlan.web;
2
3 import org.apache.ibatis.annotations.Mapper;
4 import org.apache.ibatis.annotations.Param;
5 import org.apache.ibatis.annotations.Select;
6
7 /**
8 * Created by Administrator on 2016/9/2.
9 */
10 @Mapper
11 public interface UserMapper {
12
13 @Select("select * from user where name = #{name}")
14 User findUserByName(@Param("name")String name);
15 }
@Mapper就是我们要与mybatis融合关键的一步，只要一个注解就搞定了。
哈哈哈，最后我们就来写一个测试类吧：
1 package org.shenlan.web;
2
3 import org.springframework.beans.factory.annotation.Autowired;
4 import org.springframework.web.bind.annotation.RequestMapping;
5 import org.springframework.web.bind.annotation.ResponseBody;
6 import org.springframework.web.bind.annotation.RestController;
7
8 /**
9 * Created by wangwei on 2016/9/2.
10 */
11 @RestController
12 @RequestMapping({"/home"})
13 public class UserController {
14 @Autowired
15 UserMapper userMapper;
16
17 @RequestMapping(value = "/user")
18 @ResponseBody
19 public String user(){
20 User user = userMapper.findUserByName("王伟");
21 return user.getName()+"-----"+user.getAge();
22 }
标签：
原文地址：http://www.cnblogs.com/jinguanzhang/p/5833057.html
