Question

我有这样的java类：

public class Action{

private String title;
private String description;

private ActionState actionState;

public Action(){};
public Action(String title, String description, ActionState actionState)
    this.title = title;
    this.description = description;
    this.actionState = actionState;
}




public String getTitle() {
    return title;
}

public String getDescription() {
    return description;
}

public ActionState getActionState() {
    return actionState;
}

}

和控制器：

    @RequestMapping(value = "/new/addAction", method = RequestMethod.POST)
public @ResponseBody void addAction(@RequestBody Action action){
    actionService.add(action);
}

   @RequestMapping(value = "/new/actionStates", method = RequestMethod.GET)
@ResponseBody
public List<String> returnActionsStates(){
     return actionService.enumToStringList(ActionState.class);
}

首先负责将对象写入DB，然后将我的ENUMS名称发送给角度控制器

枚举类看起来像这样：

public enum ActionState {

CREATED,
OPENED,
CLOSED

}

这里是角度控制器

app.controller('actionController',function ($scope, $http) {
    $scope.addAction = function(action){
        $scope.action = {};
            $http.post('actions/new/addAction', action).success(function(){
                $scope.action.title='';
                $scope.action.description='';
            })
}

$scope.getActionStates = function() {
    $http.get('actions/new/actionStates').success(function(actionTypesState){
        $scope.states = actionTypesState;
    })
}

最后是html表单

<b>Ttitle</b><input type="text" data-ng-model="action.title">
<br>
<b>Description</b><input type="text" data-ng-model="action.description">

<div data-ng-init="getActionStates()">
<b>Action State</b> <select id="actionState">
<option value="">-- choose--</option>
<option data-ng-repeat="state in states" value="{{state}}">{{state}}</option>
</select><br>
</div>
<br>
<button data-ng-click="addAction(action)">submit</button>

它的标题和描述。我的意思是Action控制器中的addAction对象的标题值等于我用html格式输入的标题值，其描述相同。

问题是：如何使其与我的enum值一样有效？

我知道我可以发送带有枚举名称的String，然后使用valueOf方法在控制器中创建它。但我希望自动创建整个对象：）。

我会感激任何帮助。

Answer 1

如果有人想知道，Spring会自动将JSON转换为ENUM。这里的问题是html代码，它根本没有发送JSON。使用以下代码

<div data-ng-init="getActionStates()">
    <b>Action State</b> <select data-ng-model="action.actionState" data-ng-options="actionState for (id, actionState) in states">
    <option value="">{{neutralActionState}}</option>
</select>
</div>

从html表单在构造函数中使用枚举创建java对象

1 个答案: