Laravel guzzle post 请求创建功能不起作用（415 Unsupported Media Type`）

Posted 2023-02-27

【中文标题】Laravel guzzle post 请求创建功能不起作用（415 Unsupported Media Type`）

【英文标题】：Laravel guzzle post request for create function not working(415 Unsupported Media Type`)

【发布时间】：2018-12-06 05:42:01

【问题描述】：

我尝试将带有表单数据（Laravel 应用程序）的 POST 请求发送到 Java Spring rest api (http://localhost:8000/api/devices/createClient)。

但我收到 (415 Unsupported Media Type`) 错误。使用 POSTMAN 时一切正常，但使用 Guzzle 时不行。如何解决此问题？

来自邮递员的图片 Postman body piscturePostman header picture

错误图片： Laravel error

Laravel 控制器

 //function for sending data to restapi
    public function posDeviceCreate(Request $request)
        $device= new Client([
        'headers' => ['Content-Type' => 'application/json' ]
    ]);
          $answer= $device->POST('http://localhost:8000/api/devices/createDevice',
        ['form_params' => json_encode(
            [
            [
               'deviceIp' =>  $request->input('deviceIp'),
                'devicePort' =>  $request->input('devicePort'),
                'deviceFrequencyCollection' => $request->input('deviceFrequencyCollection'),
                'deviceFrequencyUpload' => $request->input('deviceFrequencyUpload'),
                "deviceStatus"=> "false",
                 'serverName' => $request->input('serverName'),
                  'serverAddress' => $request->input('serverAddress'),
                  'PortServer' =>  $request->input('PortServer')
            ]

            ]
        )]
    );


               return redirect()->route('graph.home')->with('info', 'Success ');

        
    

Client Controller.java(弹簧控制器)

 /* For client registration at the point of the client installation */
        @RequestMapping(value = "/clients/createClient", method = RequestMethod.POST)
        public ResponseEntity<?> createClient(@RequestBody ClientDto clientDto) 

           Long id = clientService.createClient(clientDto);

            return new ResponseEntity<Long>(id, HttpStatus.OK);
        

Client.java(模型弹簧)

public class Client 

    @Id
    @GeneratedValue
    @Column(name = "client_id")
    private Long clientId;

    @NotNull
    @Column(unique = true)
    private String clientAllias;

    @NotNull
    private String clientIp;

    @NotNull
    private String clientPort;

    @NotNull
    private Double dataCollectionFrequency;

    @NotNull
    private Double dataUploadFrequency;

    @NotNull
    private Boolean isClientAvailable;

    @NotNull
    private String serverAllias;

    @NotNull
    private String serverIp;

    @NotNull
    private String serverPort;

    @OneToMany
    @JoinColumn(name = "client_id")
    private List<ClientData> clientData = new ArrayList<ClientData>();

    public Client() 
    


    public Client(ClientDto clientDto) 
        super();
        this.clientAllias = clientDto.getClientAllias();
        this.clientIp = clientDto.getClientIp();
        this.clientPort = clientDto.getClientPort();
        this.dataCollectionFrequency = clientDto.getDataCollectionFrequency();
        this.dataUploadFrequency = clientDto.getDataUploadFrequency();
        this.isClientAvailable = clientDto.getIsClientAvailable();
        this.serverAllias = clientDto.getServerAllias();
        this.serverIp = clientDto.getServerIp();
        this.serverPort = clientDto.getServerPort();
    


    public Long getClientId() 
        return clientId;
    

    public void setClientId(Long clientId) 
        this.clientId = clientId;
    

    public String getClientAllias() 
        return clientAllias;
    

    public void setClientAllias(String clientAllias) 
        this.clientAllias = clientAllias;
    

    public String getClientIp() 
        return clientIp;
    

    public void setClientIp(String clientIp) 
        this.clientIp = clientIp;
    

    public String getClientPort() 
        return clientPort;
    

    public void setClientPort(String clientPort) 
        this.clientPort = clientPort;
    

    public Double getDataCollectionFrequency() 
        return dataCollectionFrequency;
    

    public void setDataCollectionFrequency(Double dataCollectionFrequency) 
        this.dataCollectionFrequency = dataCollectionFrequency;
    

    public Double getDataUploadFrequency() 
        return dataUploadFrequency;
    

    public void setDataUploadFrequency(Double dataUploadFrequency) 
        this.dataUploadFrequency = dataUploadFrequency;
    

    public Boolean getIsClientAvailable() 
        return isClientAvailable;
    

    public void setIsClientAvailable(Boolean isClientAvailable) 
        this.isClientAvailable = isClientAvailable;
    

    public String getServerAllias() 
        return serverAllias;
    

    public void setServerAllias(String serverAllias) 
        this.serverAllias = serverAllias;
    

    public String getServerIp() 
        return serverIp;
    

    public void setServerIp(String serverIp) 
        this.serverIp = serverIp;
    

    public String getServerPort() 
        return serverPort;
    

    public void setServerPort(String serverPort) 
        this.serverPort = serverPort;
    

    public List<ClientData> getClientData() 
        return clientData;
    

    public void setClientData(List<ClientData> clientData) 
        this.clientData = clientData;
    

【问题讨论】：

该错误似乎是对您的请求的响应。您可能希望在您的 guzzle 请求中使用“json”而不是“form_params”。检查：docs.guzzlephp.org/en/stable/request-options.html#json

@OluwatobiSamuelOmisakin，请参阅 tjos 问题：***.com/questions/51064433/…

如果您使用json，则不需要json_encode()，您只需要传递该请求正文的数组即可。

【参考方案1】：

这就是我在评论中所指的内容

$client = new Client(); //infact you don't need the header, this'd be set for you by guzzle if you specify 'json' as the body
// Check: http://docs.guzzlephp.org/en/stable/request-options.html#json

然后……：

$client->post('/url', [
    'json' => [
        'clientIp' =>  $request->input('clientIp'),
        'clientPort' =>  $request->input('clientPort'),
        'dataCollectionFrequency' => $request->input('dataCollectionFrequency'),
        'dataUploadFrequency' => $request->input('dataUploadFrequency'),
        'isClientAvailable'=> 'false',
        'serverAllias' => $request->input('serverAllias'),
        'serverIp' => $request->input('serverIp'),
]]);

请注意，Guzzle 版本的某些行为有所不同：查看答案here：以了解我所指的内容。

【讨论】：

首先，我要感谢您为我提供的所有帮助。我解决了这个问题 :) 半天后我意识到我将我的数据发送到错误的 url :D :) 再次感谢你拯救了我的一天！