版权声明：（谢厂节的博客）博主文章绝大部分非原创，转载望留链接。 https://blog.csdn.net/xundh/article/details/82413780
项目结构
mysql 表结构
CREATE TABLE `users` (
`id` int(10) UNSIGNED NOT NULL COMMENT 'ID',
`username` varchar(20) NOT NULL DEFAULT '' COMMENT '用户名',
`password` varchar(32) NOT NULL DEFAULT '' COMMENT '密码'
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COMMENT='用户表' ROW_FORMAT=COMPACT;
application.properties
### mysql
spring.datasource.url=jdbc:mysql://localhost:3306/testdb
spring.datasource.username=root
spring.datasource.password=1
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.thymeleaf.mode=HTML5
spring.thymeleaf.suffix=.html
spring.thymeleaf.encoding=UTF-8
spring.thymeleaf.content-type=text/html
spring.thymeleaf.cache=false
list.html
<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head>
<meta charset="UTF-8" />
<title>list.html</title>
</head>
<body>
<h2>用户列表</h2>
<div>
<ul>
<li th:each="user:${users}">
<p>ID:<span th:text="${user.id}"></span></p>
<p>名字:<span th:text="${user.username}"></span></p>
<p>密码:<span th:text="${user.password}"></span></p>
</li>
</ul>
</div>
</body>
</html>UserController.java
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.List;
import javax.annotation.Resource;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.core.RowMapper;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import com.xundh.demo.model.User;
@RequestMapping("user")
@Controller
public class UserController {
@Resource
private JdbcTemplate jdbcTemplate;
@RequestMapping("/list")
public String list(Model model) {
String sql = "SELECT id,username,password FROM users";
List<User> userList = (List<User>)jdbcTemplate.query(sql, new RowMapper<User>(){
public User mapRow(ResultSet rs, int rowNum) throws SQLException {
User user = new User();
user.setId(rs.getInt("id"));
user.setUsername(rs.getString("username"));
user.setPassword(rs.getString("password"));
return user;
}
});
System.out.println("success");
for(User user:userList){
System.out.println("username:"+user.getUsername());
}
model.addAttribute("users",userList);
return "/user/list";
}
}User.java
public class User {
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
private int id;
private String username;
private String password;
}
DemoApplication.java
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class DemoApplication {
public static void main(String[] args) {
SpringApplication.run(DemoApplication.class, args);
}
}运行结果
打开网址：http://localhost:8080/user/list
控制台打印：
网页会输出用户列表。