Spring MVC / Simple Post请求不起作用

时间:2018-02-26 14:40:53

标签: ajax spring spring-mvc post

在我的春季MVC应用程序中,我正在尝试制作一个简单的Post请求,但由于我的请求正文,它不起作用。我在params中得到了嵌套对象,Spring抛出了这个异常:

org.springframework.beans.InvalidPropertyException: Invalid property 'contrats[0][nomFichier]' of bean class [fr.mnh.signweb.dto.InitSignatureRQDTO]: Property referenced in indexed property path 'contrats[0][nomFichier]' is neither an array nor a List nor a Map; returned value was [fr.mnh.signweb.dto.ContratDTO@1c74fdf]

这是发送给请求的json :(我没有显示值) enter image description here

这是我的对象DTO:

@NoArgsConstructor
public class InitSignatureRQDTO {

    @Getter
    @Setter
    private String referenceFournisseur;
    @Getter
    @Setter
    private String produit;
    @Getter
    @Setter
    private String civilite;
    @Getter
    @Setter
    private String nom;
    @Getter
    @Setter
    private String prenom;
    @Getter
    @Setter
    private String email;
    @Getter
    @Setter
    private String telephone;
    @Getter
    @Setter
    private String rue;
    @Getter
    @Setter
    private String complementRue;
    @Getter
    @Setter
    private String codePostal;
    @Getter
    @Setter
    private String ville;
    @Getter
    @Setter
    private String pays;
    @Getter
    @Setter
    private List<ContratDTO> contrats;
    @Getter
    @Setter
    private String messageSms;

}

并且:

@NoArgsConstructor
public class ContratDTO {

    @Getter
    @Setter
    private String nomFichier;
    /*@Getter
    @Setter
    private byte[] fichier;*/

}

这是我的控制器:

@RequestMapping(value = "/initSign", method = RequestMethod.POST)
    public ResponseEntity launchSign(InitSignatureRQDTO initSignatureRQDTO) {

        System.out.println(initSignatureRQDTO);


    }

我尝试使用@RequestBody,如:

public ResponseEntity launchSign(@RequestBody InitSignatureRQDTO initSignatureRQDTO) 

但它不起作用。我有x-www-form-urlencoded; charset = UTF-8不支持异常。

编辑: 使用时:

@RequestMapping(value = "/initSign", method = RequestMethod.POST, consumes = MediaType.APPLICATION_JSON_VALUE)
    public ResponseEntity launchSign(InitSignatureRQDTO initSignatureRQDTO) {

我收到了这些日志:

DEBUG: org.springframework.web.servlet.DispatcherServlet - DispatcherServlet with name 'appServlet' processing POST request for [/initSign]
DEBUG: org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping - Looking up handler method for path /initSign
DEBUG: org.springframework.web.servlet.mvc.method.annotation.ExceptionHandlerExceptionResolver - Resolving exception from handler [null]: org.springframework.web.HttpMediaTypeNotSupportedException: Content type 'application/x-www-form-urlencoded;charset=UTF-8' not supported
DEBUG: org.springframework.web.servlet.mvc.annotation.ResponseStatusExceptionResolver - Resolving exception from handler [null]: org.springframework.web.HttpMediaTypeNotSupportedException: Content type 'application/x-www-form-urlencoded;charset=UTF-8' not supported
DEBUG: org.springframework.web.servlet.mvc.support.DefaultHandlerExceptionResolver - Resolving exception from handler [null]: org.springframework.web.HttpMediaTypeNotSupportedException: Content type 'application/x-www-form-urlencoded;charset=UTF-8' not supported
DEBUG: org.springframework.web.servlet.DispatcherServlet - Null ModelAndView returned to DispatcherServlet with name 'appServlet': assuming HandlerAdapter completed request handling
DEBUG: org.springframework.web.servlet.DispatcherServlet - Successfully completed request

2 个答案:

答案 0 :(得分:0)

您正在POST请求正文中发送JSON内容,因此您需要在请求中将内容类型用作application/json

提交表格时将使用

x-www-form-urlencoded;charset=UTF-8

答案 1 :(得分:0)

我有x-www-form-urlencoded; charset = UTF-8不支持异常。” - 我认为这是线索。

如果您要发送InitSignatureRQDTO等数据,则需要使用application/json。 这告诉服务器您正在发布JSON数据,如下所示:

{ Name : 'myname', email: 'myemail@email'}

www-form-urlencoded主要用于发送少量参数时。它会通知服务器您将对URL中的参数进行编码。

更多详情here

但是,如果您仍想使用www-form-urlencoded,则可能需要通知您的控件接受以下内容:

@RequestMapping(value = "/initSign", method = RequestMethod.POST,consumes = MediaType.APPLICATION_FORM_URLENCODED_VALUE)