在你創建的工程下建立 Module 選擇Spring initializr建立
在Type處選擇: Maven Project(項目的構建工具)
建立依賴時勾上web,mybatis,mysql(這個看你我的須要吧,能夠自主選擇)
創建好的項目結構以下:
注意:application.properties和application.yml是同一個東西,均爲項目的核心配置文件
內容以下:
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複製代碼
相應的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依賴-->
<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對象-->
<dependency
> <groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.49</version>
</dependency>
<!--使用thymeleaf標籤-->
<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>複製代碼
相應的接口UserMapper以下:
@Repository
public interface UserMapper {
List<User> getList();
}複製代碼
service以下:
public interface UserService {
List<User> getList();
}複製代碼
impl以下:
@Service
public class UserServiceImpl implements UserService {
@Resource
private UserMapper userMapper;
@Override
public List<User> getList() {
return userMapper.getList();
}
}複製代碼
在resources中建一個文件夾mapper裏面放mapper.xml文件,代碼以下:
<select id="getList" resultType="User">
select * from smbms_user
</select>複製代碼
在templates文件夾中建html文件,使用Thymeleaf進行數據遍歷
核心代碼以下:
<table>
<th>工號</th>
<th>用戶名</th>
<th>姓名</th>
<th>性別</th>
<th>生日</th>
<th>電話</th>
<th>地址</th>
<th>建立時間</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>複製代碼
此處有一個th標籤,須要引入一個
<html xmlns:th="http://www.thymeleaf.org">複製代碼
並在pom.xml中引入對應的jar包(html中不能使用jstl表達式)
下一篇文章介紹thymeleaf的知識
控制器代碼以下:
@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";
}
}複製代碼