通过thymeleaf模板遍历Controller层传递来的数组对象，并通过超链接将对象的某个属性当作参数再传到Controller层

Bertha 。 2022-05-14 09:36 46阅读 0赞

功能描述：将查询到的所有users传递到list\_user.html页面，list\_user.html页面展示所有user信息，通过超链接的方式传递user的userId属性到相应的Controller层的方法中实现删除该用户的功能。如下图：

![70][]

1.Controller层代码

@Controller
    public class AdminController {
    
    	@Autowired
    	private IAdminService adminService;
    	
    	private Logger logger=(Logger) LoggerFactory.getLogger(this.getClass()); //日志
    	
    	
    	/**
    	 * 查找所有user
    	 * @param request
    	 * @return
    	 */
    	@RequestMapping("findAllUsers")
    	public String findAllUsers(HttpServletRequest request) {
    		List<User> users=adminService.findAllUsers();
    		request.setAttribute("users", users);
    		return "admin/list_user";
    	}
        
    	/**
    	 * 删除一个用户
    	 * @param request
    	 * @return
    	 */
    	@RequestMapping("deleteUser")
    	public String deleteUser(HttpServletRequest request) {
    		String userId=request.getParameter("userId");
    		logger.info(userId);
    		int id=Integer.parseInt(userId);
    		int n=adminService.deleteUserByUserId(id);
    		return "admin/index";
    	}
    }

2.list\_user.html页面代码

<!DOCTYPE html>
    
    <html xmlns:th="http://www.thymeleaf.org">
    <head>
    <meta charset="UTF-8">
    <title>Insert title here</title>
    </head>
    <body>
    <table>
      <tr th:each="user : ${users}">
           <td th:text="${user.userId}">1</td>
          <td th:text="${user.userName}">yxc</td>
          <td th:text="${user.userPwd}">123456</td>
          <td th:text="${user.userEmail}">yes</td>
            
          <td><a href="#" th:href="@{/deleteUser(userId=${user.userId})}">删除该用户</a></td> 
      </tr>
    </table>
    </body>
    </html>

[70]: /images/20220514/e5d90c51a3f7446bae883585b70bfc65.png