java - 在 post 方法中从 Angular UI 发送两个参数并由 java API 处理

Question

只是需要指导...从 Controller 到服务，变量都是可访问的。但当它们发送到 api 端时不可用。 (只要有一个变量就可以正常工作)变量值是经过一些计算后得出的。

Service.js代码...

function MySvcFunction(value1, value2) {
    console.log('value1 : ', value1);  //printing value1
    console.log('value2 : ', value2);  //printing value2
    return $http.post('http://' + api_url + value1, value2).then(
         function (response) {
              //manage success
         },
         function (error) {
              //manage error;
         });
}

Controller.js 代码...

$scope.someFunction = function(){
    console.log('value1 : ', value1);  //printing value1
    console.log('value2 : ', value2);  //printing value2
  MySvcController.MySvcFunction($scope.value1, $scope.value2).then(
  function (response) {
     //display on screen 
 });

现在java中的api代码...

场景1异常(有两个@RequestBody)

@PostMapping(value = "/api_url")
public ResponseEntity<Object> MyFunction(@RequestBody Integer value1, @RequestBody Integer value2) {
    System.out.println("value1 : "+ value1);
    System.out.println("value2 : "+ value2);        
}
//Exception:
Failed to read HTTP message: org.springframework.http.converter.HttpMessageNotReadableException: Could not read document: Stream closed; nested exception is java.io.IOException*/

场景2异常(有一个@RequestBody)

@PostMapping(value = "/api_url")
public ResponseEntity<Object> MyFunction(@RequestBody Integer value1, Integer value2) {
    System.out.println("value1 : "+ value1);   //value1 : int val
    System.out.println("value2 : "+ value2);   //value2 : null
}
//Exception:
nested NullPointerException with root cause.

Answer 1

我不确定它是否正确？

Controller .js

$scope.someFunction = function(){
  var bothVar = {'value1': $scope.value1, 'value2': $scope.value2};
  MySvcController.MySvcFunction(bothVar).then(
    function (response) {
      //display on screen 
});

服务.js

function MySvcFunction(bothVar) {
 return $http.post('http://' + api_url + bothVar).then(
     function (response) {
          //manage success
     },
     function (error) {
          //manage error;
     });
}

API端java代码

@PostMapping(value = "/api_url")
public ResponseEntity<Object> suggestBreakfast(@RequestBody Map bothVar){
    System.out.println("value1 is : "+ bothVar.get("value1"));
    System.out.println("value2 is : "+ bothVar.get("value2"));
}
// And i am getting those two values here successfully