java 404 HttpErrorResponse由于通过ngForm将对象从angular发送到springboot
我在向springboot发送表单数据时遇到问题。我想将捐赠者添加到数据库中，但当我尝试添加捐赠者时，我收到404NotFoundException。下面是我的代码： 以下是springboot中的捐赠者服务代码：
public void addDonator(DonatorDTO donatorDTO) throws MailException {
if (donatorRepository.existsByEmail(donatorDTO.getEmail())) {
throw new RuntimeException("User with this e-mail already exists in db");
} else {
Donator donator = new Donator();
Company company = companyRepository.findByCompanyName(donatorDTO.getCompanyName()).orElseThrow(() -> new ResourceNotFoundException("Company not found"));
BloodGroup blood = bloodGroupRepository.findBloodGroupByBloodType(donatorDTO.getBloodGroup()).orElseThrow(() -> new ResourceNotFoundException("Blood group not found"));
donator.setName(firstLetterToUpperCase(donatorDTO.getName()));
donator.setSurname(firstLetterToUpperCase(donatorDTO.getSurname()));
donator.setEmail(donatorDTO.getEmail());
donator.setMilitaryRank(donatorDTO.getMilitaryRank());
donator.setCompany(company);
donator.setBloodGroup(blood);
blood.setNumberOfDonators(blood.getNumberOfDonators() + 1);
donator.setNextDonationDate(LocalDate.now());
donator.setIsCapable(true);
donatorRepository.save(donator);
try {
mailService.helloNotification(donatorDTO);
} catch (MailException mailException) {
logger.error("Can't send email with confirmation of addition donator in a database");
logger.error(mailException.getMessage());
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (MessagingException e) {
e.printStackTrace();
}
}
}
以下是捐赠者控制器：
@RestController
public class DonatorController {
DonatorService donatorService;
MailService mailService;
public DonatorController(DonatorService donatorService, MailService mailService) {
this.donatorService = donatorService;
this.mailService = mailService;
}
@PostMapping(value = "/donators")
public ResponseEntity addDonator(@RequestBody DonatorDTO donatorDTO) {
donatorService.addDonator(donatorDTO);
return new ResponseEntity<>(HttpStatus.OK);
}
这是我的申请表。属性文件：
spring.jpa.hibernate.ddl-auto=update
spring.jpa.show-sql=true
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.datasource.url=jdbc:mysql://localhost:3306/krwiodawstwo?createDatabaseIfNotExist=true&serverTimezone=Europe/Warsaw
spring.datasource.username=root
spring.datasource.password=
spring.mail.host=smtp.gmail.com
spring.mail.username=my_email_example
spring.mail.password=my_password
spring.mail.properties.mail.smtp.auth=true
spring.mail.properties.mail.smtp.starttls.enable=true
spring.mail.properties.mail.smtp.starttls.required=true
server.error.include-message=always
jwt.secret=324ijdijasi4dsa@@@as216767
allowed.origin=http://localhost:4200
角度供体组件代码：
import { DonatorDTO } from './../../models/DonatorDTO';
import { DonatorsService } from './../../services/donator.service';
import { Component, OnInit } from '@angular/core';
import { FormBuilder, FormControl, FormGroup, NgForm, Validators } from '@angular/forms';
@Component({
selector: 'app-donators',
templateUrl: './donators.component.html',
styleUrls: ['./donators.component.css']
})
export class DonatorsComponent implements OnInit {
donatorDTO : DonatorDTO = new DonatorDTO();
constructor(private donatorService: DonatorsService) {
}
ngOnInit(): void {
}
companies: string [] =['companyA', 'companyB'];
bloodGroups: string [] = ['A+', 'A-', 'B+', 'B-', 'AB+', 'AB-', '0+', '0-'];
ranks: string [] = ['rankaA', 'rankB'];
createDonator() {
console.log(this.donatorDTO);
this.donatorService.addDonator(this.donatorDTO).subscribe(data => {
console.log(data)
})
}
}
角分量。html代码：
<!DOCTYPE html>
<html lang="pl-PL">
<body>
<div class="container">
<div class="col-md-6">
<form #test = "ngForm" (ngSubmit) = "createDonator()" >
<div class="form-group">
<input type="text" class = "form-control" [(ngModel)]="donatorDTO.name" name="name" placeholder="i.e. John >
<small id="nameHelp" class="form-text text-muted">Name</small>
</div>
<div class="form-group">
<input type="text" class = "form-control" [(ngModel)]="donatorDTO.surname" name="surname" placeholder="np. Kowalski" >
<small id="surnameHelp" class="form-text text-muted">Surname</small>
</div>
<div class="form-group">
<input type="email" class = "form-control" [(ngModel)]="donatorDTO.email" name="email" placeholder="ex. test@gmail.com" >
<small id="emailHelp" class="form-text text-muted">email</small>
</div>
<div class="form-group">
<select class="form-control" [(ngModel)]="donatorDTO.militaryRank" name="militaryRank">
<option *ngFor="let rank of ranks" [ngValue]="rank">{{rank}}</option>
</select>
<small id="rankHelp" class="form-text text-muted">Ranky</small>
</div>
<div class="form-group">
<select [(ngModel)]="donatorDTO.companyName" name="company" >
<option *ngFor="let cmp of companies" [ngValue]="cmp">{{cmp}}</option>
</select>
<small id="companyHelp" class="form-text text-muted">Choose company dawcy</small>
</div>
<div class="form-group">
<select [(ngModel)]="donatorDTO.bloodGroup" name="bloodGroup" >
<option *ngFor="let blood of bloodGroups" [ngValue]="blood">{{blood}}</option>
</select>
</div>
<div class="form-group">
<button class = "btn btn-success" type="submit">Add to base</button>
</div>
</form>
</div>
</div>
</body>
</html>
以下是angular中的DonatorService：
import { DonatorDTO } from '../models/DonatorDTO';
import { HttpHeaders, HttpClient } from "@angular/common/http";
import { Injectable } from '@angular/core';
import { BehaviorSubject, Observable } from 'rxjs';
@Injectable({
providedIn: 'root'
})
export class DonatorsService {
private watKrewDonationUrl = "http://localhost:8080/donators";
constructor(private _http: HttpClient){}
public addDonator(donatorDTO: DonatorDTO): Observable<DonatorDTO>{
return this._http.post<DonatorDTO>(this.watKrewDonationUrl, donatorDTO);
}
}
Here is an error view from web browser
这是springboot终端的日志 springboot terminal 我不知道为什么当请求接近spring boot时*电子邮件不为空*
# 1 楼答案
我在尝试将API与Angular集成时遇到了类似的问题，解决方案是添加一个配置类以允许访问
我还注意到，在控制器中，您正在创建返回“ResponseEntity<；”的方法在<&燃气轮机；签名，除了返回HTTP响应ok外，POST案例中正确的做法如下：