播放框架输入文本值总是传递0

时间:2015-01-30 00:22:34

标签: java playframework playframework-2.0 playframework-2.3

我已经在一个游戏表格上工作了几天而且非常沮丧。我浏览了文档并使用了“Play with Java”一书,并创建了一个userWeights模型类:

public class UserWeights {
        public HashMap<ServicesWeights, Float> userWeights = new HashMap<>();
        @Constraints.Required
        public String user;
        @Constraints.Required
        public String password;
        public int sampleSize;
        public int misSampleSize;
} 

我的控制器:

public class Application extends Controller {

    private static final Form<UserWeights> userWeightsForm = Form.form(UserWeights.class);

    public static Result index() {
        return ok(index.render("Your new application is ready."));
    }

    public static Result finder () {

        return ok(finder.render(userWeightsForm));
    }

    public static Result runWithUserInput () {
        Form<UserWeights> boundForm = userWeightsForm.bindFromRequest();

        if (boundForm.hasErrors()) { 
            return badRequest(index.render("FAIL"));
        }
        UserWeights weights = boundForm.get(); 

        if (weights.checkboxChoices.get(0) != null && weights.checkboxChoices.get(0).equals("1")) {
            runMethodA();
        } else if (weights.checkboxChoices.get(1) != null && weights.checkboxChoices.get(1).equals("2")) {
            runMethodB();
        } 

        return TODO;
    }

观点:

@(UserWeightsForm: Form[UserWeights]) 
@import helper._ 
@import helper.twitterBootstrap._ 

@main("finder") {
<h1>Please fill the required fields</h1>
@helper.form(action = routes.Application.runWithUserInput(), 'enctype -> "multipart/form-data") {
<fieldset>
    <legend>Finder</legend>
    @helper.inputText(UserWeightsForm("user"),'_label -> "User")
    @helper.inputPassword(UserWeightsForm("password"), '_label -> "Password")
    <br/>
        <label for="checkboxInput">Input Type:</label><br/>

        <span class="buttonSet" id="checkboxInput"> 
        <input type = "checkbox" id = "genericCheckbox" name = 'checkboxChoices[0]' value = "1">
        <label for = "genericCheckbox">Generic Sample</label>
        <input type  =  "number" name  =  'UserWeightsForm("sampleSize")' id  =  "genericInput" value = "@UserWeightsForm("sampleSize").value"><br/>
        <input type = "checkbox" id = "misCheckbox" name = 'checkboxChoices[1]' value = "2">
        <label for = "misCheckbox">MisSample</label>
        <input type  =  "number" name  =  'UserWeightsForm("misSampleSize")' id  =  "misInput" value = "@UserWeightsForm("misSampleSize").value"><br/>
        </span>

我想要的 - 如果选中第一个复选框,则用户将填写sampleSize文本输入字段,该值将限制在表单中,而misSampleSize字段将为空/ zero / what(在这种情况下,我还没有使用它)。反之亦然。

问题 - 当我选中复选框并填写sample文本输入时,它会将值0绑定到表单。

我已尝试将value标记中的input设置为null,将其完全删除并使用模板帮助程序(我更喜欢避免它,因为它不够灵活)。我无法理解为什么我输入文本字段的数字被忽略,我的程序认为它是0。

所以问题1 :如何停止填充0值?

问题2 如何为其中一个文本字段(sampleSizemisSampleSize)发送值,并将另一个留空,而不会出现表单错误?

谢谢!

1 个答案:

答案 0 :(得分:1)

我在Scala工作,而不是Java。但是我认为您需要输入ID和名称字段以匹配表单字段名称。它使用那些绑定。您没有显示您的UserWeightsForm,但您可以尝试类似:

    <input type="number" name='sampleSize' id="sampleSize" value="@UserWeightsForm("sampleSize").value.getOrElse("0")"><br/>
    <input type="number" name='misSampleSize' id="misSampleSize" value="@UserWeightsForm("misSampleSize").value.getOrElse("0")"><br/>

我也在值上使用“getOrElse”(也许是错误)没有值。