【发布时间】：2017-08-17 20:01:53
【问题描述】：
我有一个 RESTful API 。它使我可以访问 MYSQL 数据库，在其中我尝试使用自定义函数 getScholarshipfindByField 获取一些数据，并使用我想使用 AngularJS 构建页面的那些 JSON 数据。
但我收到错误：[$resource:badcfg] 操作getScholarshipfindByField 的资源配置错误。预期响应包含一个对象但得到一个数组（请求：GET `http://localhost:8080/scholarship/webresources/scholarship.scholarship）
// 服务
var Services = angular.module('raServices', ['ngResource']);
Services.factory("Scholarship",function($resource){
return $resource('http://localhost:8080/scholarship/webresources/scholarship.scholarshi p/level=:level/field=:field/country=:country/language=:language', {level:'@level',field:'@field',country:'@country',language:'@language'}, {},{
findAll:{method:'GET', isArray:true},
countREST:{method:'GET', isArray:true},
create:{method:'POST'},
edit:{method:'PUT'},
query: {method:'GET',params: {level:'@level',field:'@field',country:'@country',language:'@language'},isArray: true},
remove:{method:'DELETE'},
find:{method:'GET',params: {id: 'id'},isArray: false},
findRange:{method:'GET'},
getScholarshipfindByField:{method:'GET',params:{level:'@level',field:'@field',country:'@country',language:'@language'},isArray:false,responseType:'json'}
}
)
});
// 控制器
.controller('View2Ctrl',['$scope', 'Scholarship', function($scope, Scholarship) {
$scope.data = {};
$scope.submitForm = function(){
Scholarship.getScholarshipfindByField( {'level':$scope.data.level,'field':$scope.data.field,'country':$scope.data.country,'language':$scope.data.language}, function( response ){
$scope.allscholarship = response;
});
}
}]);
//ScholarshipFacadeRest
@GET
@Path("{level}/{field}/{country}/{language}")
@Produces({ "application/json"})
public List<Scholarship> getScholarshipfindByField(@PathParam("level") String level,@PathParam("field") String field,@PathParam("country") String country,@PathParam("language") String language){
return super.getScholarshipfindByField(level,field,country,language);
}
// AbstractFacade.java
public List<T> getScholarshipfindByField(Object level,Object field,Object country,Object language) {
CriteriaBuilder cb = getEntityManager().getCriteriaBuilder();
CriteriaQuery cq = cb.createQuery();
Root<T> c = cq.from(entityClass);
cq.select(c);
cq.where(cb.equal(c.get("level"), level),cb.equal(c.get("field"), field),cb.equal(c.get("country"), country),cb.equal(c.get("language"), language));
return getEntityManager().createQuery(cq).getResultList();
}
//html
<h3>Choose yours sholarship</h3>
</br></br>
<div ng-app="myApp" ng-controller="View2Ctrl as data" >
<div>
<form name="myForm" ng-submit="submitForm()">
<div ng-hide="shows" >
<div class="form-group">
<label for="level"> Select level of study: </label><br>
<select name="level" ng-model="data.level">
<option value="All">All</option>
<option value="Bachelor">Bachelor</option>
<option value="Masters">Master</option>
<option value="PhD Degree">PhD Degree</option>
<option value="Intership">Intership</option>
<option value="Non Degree">Non Degree</option>
</select></br></br></br>
<tt>{{data.level}}</tt><br/>
</div>
<div class="form-group">
<label for="field"> Select field of study: </label><br>
<select name="field" ng-model="data.field">
<option value="All">All</option>
<option value="Information Technology">Information Technology</option>
<option value="Economics and Finance">Economics and Finance</option>
<option value="Business and Management">Business and Management</option>
<option value="Engineering">Engineering</option>
<option value="Computer Science">Computer Science</option>
<option value="Social Sciences">Social Sciences</option>
<option value="Physical and Life Sciences">Physical and Life Sciences</option>
<option value="Arts">Arts</option>
<option value="Humanities">Humanities</option>
<option value="Agriculture">Agriculture</option>
</select></br></br></br>
<tt>{{data.field}}</tt><br/>
</div>
<div class="form-group">
<label for="country"> Select country of study: </label><br>
<select name="country" ng-model="data.country">
<option value="All">All</option>
<option value="USA">USA</option>
<option value="UK">UK</option>
<option value="Netherlands">Netherlands</option>
<option value="Australia">Australia</option>
<option value="Belgium">Belgium</option>
<option value="Bulgaria">Bulgaria</option>
<option value="Canada">Canada</option>
<option value="Czech Republic">Czech Republic</option>
<option value="Denmark">Denmark</option>
<option value="Finland">Finland</option>
<option value="France">France</option>
<option value="Germany">Germany</option>
<option value="France">France</option>
<option value="Greece">Greece</option>
<option value="France">France</option>
<option value="Italy">Italy</option>
<option value="Japan">Japan</option>
<option value="Luxembourg">Luxembourg</option>
<option value="New Zealand">New Zealand</option>
<option value="Norway">Norway</option>
<option value="Poland">Poland</option>
<option value="Slovakia">Slovakia</option>
<option value="Slovenia">Slovenia</option>
<option value="Spain">Spain</option>
<option value="Sweden">Sweden</option>
<option value="Switzerland">Switzerland</option>
<option value="Other">Other</option>
</select></br></br></br>
<tt>{{data.country}}</tt><br/>
</div>
<div class="form-group">
<label for="language"> Select language of study: </label><br>
<select name="language" ng-model="data.language">
<option value="All">All</option>
<option value="English">English</option>
<option value="German">German</option>
<option value="French">French</option>
</select></br></br></br>
<tt>{{data.language}}</tt><br/>
</div>
<button ng-click=" shows = true" type="submit" >Go!</button>
</div>
</form>
</div>
<div ng-show="shows" >
<div align="center" div ng-app="myApp" ng-controller="View2Ctrl">
<div class="container">
<div >
<table class="table-condensed">
<thead>
<tr>
<th>id</th>
<th>level</th>
<th>field</th>
<th>country</th>
<th>language</th>
<th>university</th>
<th>link</th>
</tr>
</thead>
<tbody>
<tr ng-repeat="onescholarship in allscholarship">
<td>{{ onescholarship.id}}</td>
<td>{{ onescholarship.level}}</td>
<td>{{ onescholarship.field}}</td>
<td>{{ onescholarship.country}}</td>
<td>{{ onescholarship.language}}</td>
<td>{{ onescholarship.university}}</td>
<td>{{ onescholarship.link}}</td>
</tr>
</tbody>
</table>
</div>
</div>
</div>
<button ng-click="shows = false">New search</button>
</div>
</div>
如何修复错误？
【问题讨论】：