<groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.34</version>
时间: 2023-11-10 07:06:57 浏览: 95
根据提供的引用内容[1]和,<groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.34</version>对应的Maven依赖应该是:
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.34</version>
</dependency>
请将该依赖添加到您的项目中以引入mysql-connector-java的5.1.34版本。
相关问题
<dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.34</version> </dependency>
这段代码是用来引入mysql-connector-java驱动的maven依赖。它的groupId是mysql,artifactId是mysql-connector-java,version是5.1.34。通过这个依赖,你可以在项目中使用mysql数据库。<span class="em">1</span><span class="em">2</span><span class="em">3</span><span class="em">4</span>
springboot+layui+mysql实现用户登录
首先,引入Maven依赖:
```xml
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.34</version>
</dependency>
```
其中,thymeleaf依赖是用于页面渲染的框架,spring-boot-starter-data-jpa是用于持久化数据的框架。
接着,创建用户实体类,并使用JPA注解进行映射:
```java
@Entity
@Table(name = "user")
public class User {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Integer id;
private String username;
private String password;
// 省略getter和setter方法
}
```
然后,创建用户Repository接口,继承JPA的CrudRepository:
```java
public interface UserRepository extends CrudRepository<User, Integer> {
User findByUsername(String username);
}
```
在Controller中实现用户登录:
```java
@Controller
public class LoginController {
@Autowired
private UserRepository userRepository;
@PostMapping("/login")
public String login(String username, String password, HttpSession session) {
User user = userRepository.findByUsername(username);
if (user != null && password.equals(user.getPassword())) {
session.setAttribute("user", user);
return "redirect:index.html";
} else {
return "redirect:login.html";
}
}
}
```
在页面中使用layui框架和Thymeleaf模板引擎,实现用户登录页面:
```html
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>用户登录</title>
<link rel="stylesheet" href="https://cdn.staticfile.org/layui/2.5.6/css/layui.css">
</head>
<body>
<div class="layui-container">
<div class="layui-row">
<div class="layui-col-md-offset2 layui-col-md8">
<form class="layui-form" action="/login" method="post">
<div class="layui-form-item">
<label class="layui-form-label">用户名</label>
<div class="layui-input-block">
<input type="text" name="username" required lay-verify="required" placeholder="请输入用户名"
autocomplete="off" class="layui-input">
</div>
</div>
<div class="layui-form-item">
<label class="layui-form-label">密码</label>
<div class="layui-input-block">
<input type="password" name="password" required lay-verify="required" placeholder="请输入密码"
autocomplete="off" class="layui-input">
</div>
</div>
<div class="layui-form-item">
<div class="layui-input-block">
<button class="layui-btn" lay-submit lay-filter="login">登录</button>
</div>
</div>
</form>
</div>
</div>
</div>
<script src="https://cdn.staticfile.org/layui/2.5.6/layui.js"></script>
</body>
</html>
```
在登录成功后,将用户信息保存到Session中,并跳转到登录后的页面,如:
```java
@GetMapping("/index.html")
public String index(HttpSession session) {
User user = (User) session.getAttribute("user");
if (user != null) {
return "index";
} else {
return "redirect:login.html";
}
}
```
登录后的页面使用Thymeleaf模板引擎,可以直接使用Java代码和表达式进行渲染,如:
```html
<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head>
<meta charset="UTF-8">
<title>首页</title>
<link rel="stylesheet" href="https://cdn.staticfile.org/layui/2.5.6/css/layui.css">
</head>
<body>
<div class="layui-container">
<div class="layui-row">
<div class="layui-col-md-offset2 layui-col-md8">
<div class="layui-card">
<div class="layui-card-header">欢迎您,[[${user.username}]]</div>
<div class="layui-card-body">
<p>您现在的角色是[[${user.role}]]</p>
</div>
</div>
</div>
</div>
</div>
<script src="https://cdn.staticfile.org/layui/2.5.6/layui.js"></script>
</body>
</html>
```
这样,用户登录就可以通过SpringBoot、Layui和Mysql实现了。
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