在你创建的工程下建立 Module 选择Spring initializr建立

在Type处选择: Maven Project(项目的构建工具)

建立依赖时勾上web,mybatis,mysql(这个看你我的须要吧,能够自主选择)


创建好的项目结构以下:

注意:application.properties和application.yml是同一个东西,均为项目的核心配置文件
内容以下:
spring.datasource.url=jdbc:mysql://localhost:3306/smbms
spring.datasource.username=root
spring.datasource.password=1234
spring.datasource.driverClassName=com.mysql.jdbc.Driver
mybatis.mapper-locations=classpath:mapper/*.xml
mybatis.type-aliases-package=com.example.sprboot.pojo复制代码
相应的pom.xml文件
<?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>
<groupId>com.example</groupId>
<artifactId>springboot</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>springboot</name>
<description>Demo project for Spring Boot</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.5.RELEASE</version>
<relativePath/>
<!-- lookup parent from repository -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
</properties>
<dependencies>
<!--添加web依赖-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!--引入spring boot包-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<!-- Spring-Mybatis -->
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>1.3.0</version>
</dependency>
<!-- MySQL -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<!--使用json对象-->
<dependency
> <groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.49</version>
</dependency>
<!--使用thymeleaf标签-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>复制代码
相应的接口UserMapper以下:
@Repository
public interface UserMapper {
List<User> getList();
}复制代码
service以下:
public interface UserService {
List<User> getList();
}复制代码
impl以下:
@Service
public class UserServiceImpl implements UserService {
@Resource
private UserMapper userMapper;
@Override
public List<User> getList() {
return userMapper.getList();
}
}复制代码
在resources中建一个文件夹mapper里面放mapper.xml文件,代码以下:
<select id="getList" resultType="User">
select * from smbms_user
</select>复制代码
在templates文件夹中建html文件,使用Thymeleaf进行数据遍历
核心代码以下:
<table>
<th>工号</th>
<th>用户名</th>
<th>姓名</th>
<th>性别</th>
<th>生日</th>
<th>电话</th>
<th>地址</th>
<th>建立时间</th>
<tr th:each="user : ${users}">
<td th:text="${user.id}"></td>
<td th:text="${user.userCode}"></td>
<td th:text="${user.userName}"></td>
<td th:text="${user.gender}"></td>
<td th:text="${user.birthday}"></td>
<td th:text="${user.phone}"></td>
<td th:text="${user.address}"></td>
<td th:text="${user.createdBY}"></td>
</tr>
</table>复制代码
此处有一个th标签,须要引入一个
<html xmlns:th="http://www.thymeleaf.org">复制代码
并在pom.xml中引入对应的jar包(html中不能使用jstl表达式)
下一篇文章介绍thymeleaf的知识
控制器代码以下:
@Controller
public class UserController {
@Resource
private UserService userService;
@RequestMapping("/")
public String getStuinforList(HttpServletRequest request, Model model){
List<User> list=userService.getList();
model.addAttribute("users",list);
System.out.println(list);
return "/index.html";
}
}复制代码