[英]Thymeleaf + Spring Boot. I try to make dynamic fields, but when the button is pressed nothing happens at all
我的 Controller:
@Controller
public class MainController {
@GetMapping("/")
public String mainPage() {
return "main";
}
@RequestMapping(value = "/", params = {"addRow"})
public String addRow(ModelForCheck modelForCheck, BindingResult bindingResult) {
modelForCheck.getVariables().add(new Variable());
return "main";
}
}
我用來測試我的代碼的 model class :
public class ModelForCheck {
private List<Variable> variables = new ArrayList<>();
public List<Variable> getVariables() {
return variables;
}
public void setVariables(List<Variable> variables) {
this.variables = variables;
}
}
我的 model class:
public class Variable {
private String name;
private String type;
public Variable() {
}
public Variable(String name, String type) {
this.name = name;
this.type = type;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getType() {
return type;
}
public void setType(String type) {
this.type = type;
}
}
我的 html 頁面(main.html):
<!DOCTYPE html>
<html lang="en" xmlns="http://www.w3.org/1999/xhtml" xmlns:th="https://www.thymeleaf.org">
<head>
<meta charset="UTF-8">
<title>Hello!</title>
</head>
<body>
<form th:action="@{/}" method="post">
<h3>Variables:</h3>
<button type="submit" name="addRow">Add Row</button>
<table>
<tr th:each="variable, variableStat : *{variables}">
<td><input type="text" th:field="*{variables[__${variableStat.index}__].name}" placeholder="name"></td>
<td><input type="text" th:field="*{variables[__${variableStat.index}__].type}" placeholder="type..."></td>
</tr>
</table>
<br>
<input type="submit" value="Generate!">
</form>
</body>
</html>
我單擊“添加行”按鈕,但由於某種原因,應用程序根本沒有反應。 日志中沒有錯誤消息,也沒有任何其他消息。 我確定啟動了“addRow”方法,因為我在調試中檢查了它
我認為它不起作用,因為您沒有在 controller 的addRow
方法中將modelForCheck
添加到 Thymeleaf model。
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