邮递员请求不起作用 - Rest APi 实现

Question

我在邮递员中创建 POST 或 GET 请求时遇到问题。我有一个控制器，它假设保存一个新项目或从数据库接收所有项目。 如果我尝试将项目保存在数据库中实现 CommandLineRunner 的类中，一切正常。有关更多详细信息，我将代码放在下面：

这是项目类：

@Entity
@Table(name = "project")
public class Project {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
@Column(name = "proj_id")
private int projectId;
@Column(name = "project_name")
private String projectName;
@Column(name = "dg_number")
private int dgNumber;
@ManyToMany(fetch = FetchType.EAGER)
@JoinTable(
name = "variant_gate_relation",
joinColumns = {@JoinColumn(name = "proj_id")},
inverseJoinColumns = {@JoinColumn(name = "gate_id")}
)
private Set<Gate> gates = new HashSet<>();
@ManyToMany(fetch = FetchType.EAGER)
@JoinTable(name = "variant_threshold_relation",
joinColumns = @JoinColumn(name = "proj_id"),
inverseJoinColumns = @JoinColumn(name = "threshold_id"))
private Set<Threshold> thresholds = new HashSet<>();
public Project() {
}
public Project(String projectName, int dgNumber, Set<Gate> gates, Set<Threshold> thresholds){
this.projectName = projectName;
this.dgNumber = dgNumber;
this.gates = gates;
this.thresholds = thresholds;
}

控制器

@RestController
@RequestMapping(ProjectController.PROJECT_URL)
public class ProjectController {
public static final String PROJECT_URL = "/cidashboard/projects";
@Autowired
private final ProjectService projectService;
public ProjectController(ProjectService projectService) {
this.projectService = projectService;
}
@GetMapping
public List<Project> getAllProjects(){
return projectService.findAllProjects();
}
@GetMapping("/{id}")
public Project getProjectById(@PathVariable int id) {
return projectService.findProjectById(id);
}
@PostMapping
//   @Consumes(MediaType.APPLICATION_JSON_VALUE)
public Project saveProject(@RequestBody Project newProj) {
return projectService.saveProject(newProj);
}
}

这是我的命令行运行程序

@Component
public class Test implements CommandLineRunner {
private final ProjectRepository projectRepository;
private final GateRepository gateRepository;
private final ThresholdRepository thresholdRepository;
public Test(ProjectRepository projectRepository, GateRepository gateRepository, ThresholdRepository thresholdRepository) {
this.projectRepository = projectRepository;
this.gateRepository = gateRepository;
this.thresholdRepository = thresholdRepository;
}
@Override
public void run(String... args) throws Exception {
Gate gate1 = new Gate("gate5", 23);
gateRepository.save(gate1);
Threshold threshold1 = new Threshold(101, "threshold5");
thresholdRepository.save(threshold1);
Set<Gate> gates = new HashSet<>();
gates.add(gate1);
Set<Threshold> thresholds = new HashSet<>();
thresholds.add(threshold1);
Project project1 = new Project("project1", 20, gates, thresholds);
projectRepository.save(project1);
List<Project> allProjectsFromDatabase = projectRepository.findAll();
System.out.println("List of all projects from database : ");
for (Project project : allProjectsFromDatabase) {
System.out.println(project.toString());
}
System.out.println("---------------------------------------------");
List<Gate> allGatesFromDatabase = gateRepository.findAll();
for (Gate gate : allGatesFromDatabase) {
System.out.println(gate);
}
}
}

我从控制台输出的是：

1 project1 201 gate5 23.0 threshold5 101

我尝试从邮递员那里做这个请求：

{
"projectName": "project2",
"dgnumber": 1,
"gates": {
"gateType" : "gate2",
"gateValue" : 13
},
"thresholds": {
"thresholdType" : "threshold2",
"thresholdValue" : 22
}
}

我收到以下输出：

{
"projectId": 3,
"projectName": "project2",
"dgnumber": 1
}

在数据库中，仅在项目表中保存数据，在门表，阈值表中保存数据，variant_gate_relation和variant_threshold_relation没有保存任何东西

Answer 1

在CommandLineRunner中，您可以在保存项目之前执行此操作。

Gate gate1 = new Gate("gate5", 23);
gateRepository.save(gate1);
Threshold threshold1 = new Threshold(101, "threshold5");
thresholdRepository.save(threshold1);
Set<Gate> gates = new HashSet<>();
gates.add(gate1);
Set<Threshold> thresholds = new HashSet<>();
thresholds.add(threshold1);

从端点保存时也应复制它(gateRepository.save()和thresholdRepository.save()在此处相关(。