Question

我无法使用thymleaf模板捕获html表单中的任何验证。

表单对象 -

public class TestForm {
....
    @Pattern(regexp = "[a-zA-Z]*", message = "Only characters")
    private String field1;
....
getter/setters
}

html代码 -

<div id="main">
            <form action="#" th:action="@{/create}" th:object="${testForm}" method="post" >
                <div>
                    <label> Field1:</label>
                    <input type="text" th:field="${testForm.field1}" name="field1" />
                    <div th:if="${#fields.hasErrors('field1')}" th:errors="*{field1}">errors</div>
                </div>                  
                <input type="submit" value="Submit" />          
            </form> 
        </div>

控制器 -

@RequestMapping(method= RequestMethod.POST, value = "/create")
public String createTest(@Valid @ModelAttribute("testForm") TestForm testForm, MultipartHttpServletRequest request, BindingResult bindingResult) throws IOException {
    if (bindingResult.hasErrors()) 
        return "createtestform";

不会抛出任何错误，表单会成功提交。

Answer 1

我认为麻烦是因为你把BindingResult放错了。将其替换为MultipartHttpServletRequest，它必须在之后验证参数：

@RequestMapping(method= RequestMethod.POST, value = "/create")
public String createTest(@Valid @ModelAttribute("testForm") TestForm testForm,  BindingResult bindingResult, MultipartHttpServletRequest request) throws IOException {
if (bindingResult.hasErrors()) 
    return "createtestform";

Answer 2

您是否尝试删除其他操作？从此<form action="#" th:action="@{/create}" th:object="${testForm}" method="post" >到此<form th:action="@{/create}" th:object="${testForm}" method="post" >？

另外两个想法也许你的javax.validation.Pattern被某个地方覆盖了？ 2.您是否尝试删除@ModelAttribute("testForm")？因此，您的方法签名将为public String createTest(@Valid TestForm testForm, MultipartHttpServletRequest request, BindingResult bindingResult) throws IOException。

使用thymeleaf无法正常工作的html表单验证

2 个答案: