1.加依赖
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 https://maven.apache.org/xsd/maven-4.0.0.xsd"> 4 <modelVersion>4.0.0</modelVersion> 5 6 <parent> 7 <groupId>org.springframework.boot</groupId> 8 <artifactId>spring-boot-starter-parent</artifactId> 9 <version>2.2.0.RELEASE</version> 10 <relativePath/> <!-- lookup parent from repository --> 11 </parent> 12 13 <groupId>com.offcn</groupId> 14 <artifactId>springbootmybatisdemo</artifactId> 15 <version>0.0.1-SNAPSHOT</version> 16 <name>springbootmybatisdemo</name> 17 <description>Demo project for Spring Boot</description> 18 19 <properties> 20 <java.version>1.8</java.version> 21 </properties> 22 23 <dependencies> 24 25 <dependency> 26 <groupId>org.springframework.boot</groupId> 27 <artifactId>spring-boot-starter-web</artifactId> 28 </dependency> 29 30 <!--springBoot data jpa的依赖--> 31 <dependency> 32 <groupId>org.springframework.boot</groupId> 33 <artifactId>spring-boot-starter-data-jpa</artifactId> 34 </dependency> 35 36 <!--SpringBoot 整合 mybatis ：1.添加依赖--> 37 <!--mybatis依赖--> 38 <dependency> 39 <groupId>org.mybatis.spring.boot</groupId> 40 <artifactId>mybatis-spring-boot-starter</artifactId> 41 <version>1.1.1</version> 42 </dependency> 43 <!--mysql依赖--> 44 <dependency> 45 <groupId>mysql</groupId> 46 <artifactId>mysql-connector-java</artifactId> 47 </dependency> 48 <dependency> 49 <groupId>org.springframework.boot</groupId> 50 <artifactId>spring-boot-starter-freemarker</artifactId> 51 </dependency> 52 53 <dependency> 54 <groupId>org.projectlombok</groupId> 55 <artifactId>lombok</artifactId> 56 </dependency> 57 58 <dependency> 59 <groupId>org.springframework.boot</groupId> 60 <artifactId>spring-boot-starter-test</artifactId> 61 <scope>test</scope> 62 <!-- <exclusions> 63 <exclusion> 64 <groupId>org.junit.vintage</groupId> 65 <artifactId>junit-vintage-engine</artifactId> 66 </exclusion> 67 </exclusions>--> 68 </dependency> 69 </dependencies> 70 71 <build> 72 73 <resources> 74 <resource> 75 <directory>src/main/java</directory> 76 <includes> 77 <include>**/*.properties</include> 78 <include>**/*.xml</include> 79 </includes> 80 <filtering>false</filtering> 81 </resource> 82 <resource> 83 <directory>src/main/resources</directory> 84 <includes> 85 <include>**/*.*</include> 86 </includes> 87 <filtering>false</filtering> 88 </resource> 89 </resources> 90 91 <plugins> 92 <plugin> 93 <groupId>org.springframework.boot</groupId> 94 <artifactId>spring-boot-maven-plugin</artifactId> 95 </plugin> 96 </plugins> 97 </build> 98 99 </project>
2、配置文件：
1 #DB Configuration 2 spring.datasource.driver-class-name=com.mysql.jdbc.Driver 3 spring.datasource.url=jdbc:mysql://127.0.0.1:3306/user?useUnicode=true&characterEncoding=utf-8&useSSL=false&serverTimezone = GMT 4 spring.datasource.username=root 5 spring.datasource.password=root 6 # JPAConfiguration 7 spring.jpa.database=mysql 8 spring.jpa.show-sql=true 9 spring.jpa.generate-ddl=true 10 #添加文件转发后缀:*重要 11 spring.freemarker.suffix=.ftl
3.实体类：
1 package com.offcn.springbootmybatisdemo.pojo; 2 3 import lombok.AllArgsConstructor; 4 import lombok.Data; 5 import lombok.NoArgsConstructor; 6 7 import javax.persistence.*; 8 import java.io.Serializable; 9 10 11 /*@Data 12 @AllArgsConstructor 13 @NoArgsConstructor*/ 14 @Entity 15 @Table(name = "user") 16 public class User{ 17 @Id 18 @GeneratedValue(strategy = GenerationType.IDENTITY) // 主键 自增长 19 private Integer uid; 20 private String uname; 21 private String password; 22 23 public User(Integer uid, String uname, String password) { 24 this.uid = uid; 25 this.uname = uname; 26 this.password = password; 27 } 28 29 public User() { 30 } 31 32 public Integer getUid() { 33 return uid; 34 } 35 36 public void setUid(Integer uid) { 37 this.uid = uid; 38 } 39 40 public String getUname() { 41 return uname; 42 } 43 44 public void setUname(String uname) { 45 this.uname = uname; 46 } 47 48 public String getPassword() { 49 return password; 50 } 51 52 public void setPassword(String password) { 53 this.password = password; 54 } 55 56 @Override 57 public String toString() { 58 return "User{" + 59 "uid=" + uid + 60 ", uname='" + uname + '\'' + 61 ", password='" + password + '\'' + 62 '}'; 63 } 64 }
4.mapper:
1 import java.util.List; 2 3 public interface UserMapper { 4 List<User> getUserList(); 5 }
5.映射文件
1 <?xml version="1.0" encoding="UTF-8" ?> 2 <!DOCTYPE mapper 3 PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" 4 "http://mybatis.org/dtd/mybatis-3-mapper.dtd"> 5 <mapper namespace="com.offcn.springbootmybatisdemo.mapper.UserMapper"> 6 <select id="getUserList" resultType="com.offcn.springbootmybatisdemo.pojo.User"> 7 select * from user 8 </select> 9 </mapper>
6.Controller·：
1 @Controller 2 public class FtlController { 3 @Autowired 4 private UserMapper userMapper; 5 6 @RequestMapping("/showUserList") 7 public String getUserList(Model model){ 8 List<User> userList = userMapper.getUserList(); 9 for (User user : userList) { 10 System.out.println(user); 11 } 12 model.addAttribute("userList",userList); 13 return "user"; 14 } 15 }
7.user.ftl
1 <html> 2 <head> 3 <title>Springboot 模板测试</title> 4 </head> 5 <body> 6 <table border="1" align="center" cellpadding="10" cellspacing="1"> 7 <thead> 8 <tr> 9 <th>id</th> 10 <th>用户名</th> 11 <th>密码</th> 12 </tr> 13 </thead> 14 <tbody> 15 <#list userList as user> 16 <tr> 17 <td>${user.uid}</td> 18 <td>${user.uname}</td> 19 <td>${user.password}</td> 20 </tr> 21 </#list> 22 </tbody> 23 </table> 24 </body> 25 </html>