无法在Angular 6 Ts中登场服务

Question

我无法在我的TS中调用邮政服务。我正在以一种形式从用户那里获取数据，并将这些数据保存到数组中，并将这些数据显示在表中。之后，我单击另一个按钮以保存我的数据，并调用无法正常工作且未显示任何错误的服务。我还在此按钮上调用其他两个服务，请单击它工作正常，但我的数组服务不起作用。

service.ts

insertAddresses(formData: SettingsAddressesModel) {
    return this.http.post(this.apiURL + "/SettingAddress/SaveAddress", formData);
  }

component.ts

insertAddressList(compIDforAddress){
    for(var i = 0; i < this.childSettingAddressComponent.SettingsAddressesList.length; i++){
      this.childSettingAddressComponent.SettingsAddressesList[i].ElementID = compIDforAddress;
      //this.addressService.insertAddresses(this.childSettingAddressComponent.SettingsAddressesList[i]);
      console.log('address data', this.childSettingAddressComponent.SettingsAddressesList[i]);
    }
    this.addressService.insertAddressListArray(this.childSettingAddressComponent.SettingsAddressesList);
    console.log('Address Elment ID:', compIDforAddress);
  }

Answer 1

您需要订阅任何异步的呼叫。否则它们不会执行。

在component.ts中修改您的代码如下：

  this.addressService.insertAddressListArray(this.childSettingAddressComponent.SettingsAddressesList)
.subscribe((result)=>{
    // result will contain the response from service  
     console.log('Address Elment ID:', compIDforAddress); 
    });

Answer 2

订阅，还会记录错误，如果有的话，帖子方法在大多数情况下默默失败了，如果无法正确处理。

this.addressService.insertAddressListArray(this.childSettingAddressComponent.SettingsAddressesList)
.subscribe((result)=>{    
    // result will contain the response from service  
     console.log('Address Elment ID:', compIDforAddress); 
    },
     (error)=>{
     console.log("error "+error);
     }
);