使用IDEA搭建Spring boot+Mybatis工程

 1 <?xml version="1.0" encoding="UTF-8"?>
 2 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 3     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 4     <modelVersion>4.0.0</modelVersion>
 5 
 6     <groupId>com.tqh</groupId>
 7     <artifactId>demo</artifactId>
 8     <version>0.0.1-SNAPSHOT</version>
 9     <packaging>jar</packaging>
10 
11     <name>demo</name>
12     <description>Demo project for Spring Boot</description>
13 
14     <parent>
15         <groupId>org.springframework.boot</groupId>
16         <artifactId>spring-boot-starter-parent</artifactId>
17         <version>1.5.9.RELEASE</version>
18         <relativePath/> <!-- lookup parent from repository -->
19     </parent>
20 
21     <properties>
22         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
23         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
24         <mybatis-spring-boot.version>1.2.0</mybatis-spring-boot.version>
25         <mysql-connector.version>5.1.39</mysql-connector.version>
26         <java.version>1.8</java.version>
27     </properties>
28 
29     <dependencies>
30         <dependency>
31             <groupId>org.springframework.boot</groupId>
32             <artifactId>spring-boot-starter-web</artifactId>
33         </dependency>
34 
35         <dependency>
36             <groupId>org.springframework.boot</groupId>
37             <artifactId>spring-boot-starter-test</artifactId>
38             <scope>test</scope>
39         </dependency>
40         <dependency>
41             <groupId>org.springframework.boot</groupId>
42             <artifactId>spring-boot-starter-thymeleaf</artifactId>
43         </dependency>
44         <dependency>
45             <groupId>org.mybatis.spring.boot</groupId>
46             <artifactId>mybatis-spring-boot-starter</artifactId>
47             <version>${mybatis-spring-boot.version}</version>
48         </dependency>
49         <dependency>
50             <groupId>mysql</groupId>
51             <artifactId>mysql-connector-java</artifactId>
52             <version>${mysql-connector.version}</version>
53         </dependency>
54     </dependencies>
55 
56     <build>
57         <plugins>
58             <plugin>
59                 <groupId>org.springframework.boot</groupId>
60                 <artifactId>spring-boot-maven-plugin</artifactId>
61             </plugin>
62         </plugins>
63     </build>
64 
65 
66 </project>

 1 server.port=9090 不配server.port默认是8080端口，我这里被占用，修改成9090

 2 #视图层控制
 3 spring.mvc.view.prefix=classpath:/templates/
 4 spring.mvc.view.suffix=.html
 5 spring.mvc.static-path-pattern=/static/**
 6 
 7 spring.datasource.url=jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=utf8
 8 spring.datasource.username= root  
 9 spring.datasource.password=root
10 spring.datasource.driver-class-name=com.mysql.jdbc.Driver
11 mybatis.typeAliasesPackage=com.tqh.demo.model 

 1 package com.tqh.demo.model;
 2 
 3 public class Person {
 4 
 5     private Integer id;
 6     private String name;
 7     private Integer age;
 8 
 9     public Integer getId() {
10         return id;
11     }
12 
13     public void setId(Integer id) {
14         this.id = id;
15     }
16 
17     public String getName() {
18         return name;
19     }
20 
21     public void setName(String name) {
22         this.name = name;
23     }
24 
25     public Integer getAge() {
26         return age;
27     }
28 
29     public void setAge(Integer age) {
30         this.age = age;
31     }
32 
33     @Override
34     public String toString() {
35         return
36                 "id=" + id +
37                         ", name=‘" + name + ‘\‘‘ +
38                         ", age=" + age
39                 ;
40     }
41 }

1 package com.tqh.demo.service;
2 
3 
4 import com.tqh.demo.model.Person;
5 
6 public interface UserService {
7     Person selectUser(int id);
8 
9 }

 1 package com.tqh.demo.service.imp;
 2 
 3 import com.tqh.demo.mapper.UserMapper;
 4 import com.tqh.demo.model.Person;
 5 import com.tqh.demo.service.UserService;
 6 import org.springframework.beans.factory.annotation.Autowired;
 7 import org.springframework.stereotype.Service;
 8 
 9 @Service
10 public class UserServiceImp implements UserService {
11 
12     @Autowired
13     UserMapper userMapper;
14 
15     @Override
16     public Person selectUser(int id) {
17         return userMapper.selectUser(id);
18     }
19 }

 1 package com.tqh.demo.controller;
 2 
 3 import com.tqh.demo.service.UserService;
 4 import org.springframework.beans.factory.annotation.Autowired;
 5 import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
 6 import org.springframework.web.bind.annotation.PathVariable;
 7 import org.springframework.web.bind.annotation.RequestMapping;
 8 import org.springframework.web.bind.annotation.RestController;
 9 
10 @RestController
11 @EnableAutoConfiguration
12 public class UserController {
13     @Autowired
14     private UserService userService;
15 
16     @RequestMapping("/showUser/{id}")
17     public String selectUser (@PathVariable int id){
18         return userService.selectUser(id).toString();
19 
20     }
21 }

 1 package com.tqh.demo;
 2 
 3 import org.mybatis.spring.annotation.MapperScan;
 4 import org.springframework.boot.SpringApplication;
 5 import org.springframework.boot.autoconfigure.SpringBootApplication;
 6 
 7 @MapperScan("com.tqh.demo.mapper")
 8 @SpringBootApplication
 9 public class DemoApplication {
10 
11     public static void main(String[] args) {
12         SpringApplication.run(DemoApplication.class, args);
13     }
14 }