java - Thymeleaf SpringEL 表达式

Question

我的 thymeleaf 模板有这样的问题。我得到:

Exception evaluating SpringEL expression: "prod.itemName" (main:18)

来自这个表达式:

<tr th:each="prod: ${product}">
    <td th:text="${prod.itemName}">sdfsdf</td>
    <td th:text="${prod.price}">asdasd</td>
    <td>asddasdas</td>
</tr>

product 是作为模型属性传递给 thymeleaf 模板的列表。我想知道为什么它不能正常工作。

我使用了这个来源: https://www.thymeleaf.org/doc/tutorials/3.0/usingthymeleaf.html#iteration-basics

编辑:

package shopbasket;

public class Item {
    String itemName;
    double price;

    Item(String itemName, double price){
        this.itemName=itemName;
        this.price=price;
    }

    void setItemName(String itemName) {
        this.itemName=itemName;
    }

    String getItemName() {
        return itemName;
    }

    void setPrice(float price) {
        this.price=price;
    }

    double getPrice() {
        return price;
    }
}

Answer 1

这个:

<tr th:each="prod : ${prods}">
    <td th:text="${prod}">sdfsdf</td>
    <td th:text="${prod}">asdasd</td>
    <td>asddasdas</td>
</tr>

给出输出:

shopbasket.Item@10d9f966    shopbasket.Item@10d9f966    asddasdas
shopbasket.Item@1346081f    shopbasket.Item@1346081f    asddasdas
shopbasket.Item@4c8bc1d8    shopbasket.Item@4c8bc1d8    asddasdas
shopbasket.Item@7b0d2332    shopbasket.Item@7b0d2332    asddasdas
shopbasket.Item@6e38515f    shopbasket.Item@6e38515f    asddasdas
shopbasket.Item@4d9daa77    shopbasket.Item@4d9daa77    asddasdas
shopbasket.Item@5f0a371d    shopbasket.Item@5f0a371d    asddasdas
shopbasket.Item@4d0c8b7d    shopbasket.Item@4d0c8b7d    asddasdas
shopbasket.Item@6112892a    shopbasket.Item@6112892a    asddasdas
shopbasket.Item@41fc596d    shopbasket.Item@41fc596d    asddasdas
shopbasket.Item@4fc03c90    shopbasket.Item@4fc03c90    asddasdas
shopbasket.Item@663e1176    shopbasket.Item@663e1176    asddasdas
shopbasket.Item@13909f42    shopbasket.Item@13909f42    asddasdas