【发布时间】:2019-12-24 11:21:02
【问题描述】:
我正在尝试遍历 List 并在表格中显示结果,但表格仍为空。
控制器
@RequestMapping(value="/home")
public String home(Model model) throws IOException {
List<OrderNotify> notifications = new ArrayList<OrderNotify>();
for (int i = 0; i < 10; i++) {
OrderNotify notification = new OrderNotify("1", "2", "3", "4");
notifications.add(notification);
}
model.addAttribute("notifications", notifications);
return "home";
}
home.jsp - 表格
<table id="handle" style=" margin:auto">
<tr>
<th>Bestellnummer</th>
<th>Datum</th>
<th>Status</th>
<th>Handlung erforderlich</th>
</tr>
<tr th:each="notify : ${notifications}">
<td th:text="${notify.orderid}"></td>
<td th:text="${notify.date}"></td>
<td th:text="${notify.status}"></td>
<td th:text="${notify.handle}"> </td>
</tr>
</table>
OrderNotify.java
public class OrderNotify {
public String orderid;
public String date;
public String status;
public String handle;
public OrderNotify(String orderid, String date, String status, String handle) {
this.orderid = orderid;
this.date = date;
this.status = status;
this.handle = handle;
}
public List<String> getAll(){
return null;
}
public String getOrderid() {
return orderid;
}
public void setOrderid(String orderid) {
this.orderid = orderid;
}
public String getDate() {
return date;
}
public void setDate(String date) {
this.date = date;
}
public String getStatus() {
return status;
}
public void setStatus(String status) {
this.status = status;
}
public String getHandle() {
return handle;
}
public void setHandle(String handle) {
this.handle = handle;
}
}
我预计确实会看到 10 行具有与列表的 OrderNotify 对象相同的信息,但它是空的。我在浏览器中查看了源代码,结果如下:
<tr th:each="notify : [com.example.spring.utils.OrderNotify@42b3c931, com.example.spring.utils.OrderNotify@76af8a32, com.example.spring.utils.OrderNotify@28025a03, com.example.spring.utils.OrderNotify@5e6eadf0, com.example.spring.utils.OrderNotify@2481d4d, com.example.spring.utils.OrderNotify@83ce92c, com.example.spring.utils.OrderNotify@3254786a, com.example.spring.utils.OrderNotify@197e42fd, com.example.spring.utils.OrderNotify@5b1e86ea, com.example.spring.utils.OrderNotify@3484712c]">
<td th:text=""></td>
<td th:text=""></td>
<td th:text=""></td>
<td th:text=""> </td>
</tr>
【问题讨论】:
-
无法重现该问题。首先浏览器不应该显示
th:each="notify : [com.example等。视图解析器会解决这些问题。你有 thymeleaf spring boot starter 依赖吗?您的应用程序中是否配置了视图解析器? -
似乎缺少 thymeleaf 依赖项。
-
您能否更新您的问题以包括您的 pom.xml?
标签: java spring loops model-view-controller thymeleaf