Java 当参数作为RequestBody和RequestParam发送时，sprig控制器无法识别发送的请求

我正在使用angularjs开发spring应用程序。 我试图将JSON对象作为RequestBody和RequestParam信息从angularjs发送到spring控制器，但是spring控制器 无法识别从angularjs发送的请求

js:

弹簧控制器：

 @RequestMapping(value = "/getInformationTest", method = RequestMethod.POST, headers = {"content-type=multipart/form-data"})
    public
    @ResponseBody
    String sendInformationTest(@RequestParam("file") List<MultipartFile> multiPartFileList,@RequestBody("emailData") EmailDataDTO emailDataDTO){                         
         System.out.println("In spring controller");
         System.out.println("single file " +multiPartFileList.size());
    }

@RequestMapping(value = "/getInformationTest", method = RequestMethod.POST, headers = {"content-type=multipart/form-data"})
    public
    @ResponseBody
    String sendInformationTest(@RequestParam("file") List<MultipartFile> multiPartFileList){                         
         System.out.println("In spring controller");
         System.out.println("single file " +multiPartFileList.size());
    }

@RequestMapping(value = "/getInformationTest", method = RequestMethod.POST, headers = {"content-type=multipart/form-data"})
    public
    @ResponseBody
    String sendInformationTest(@RequestParam("file") List<MultipartFile> multiPartFileList,@RequestParam("emailData") List<EmailDataDTO> emailData){                         
         System.out.println("In spring controller");
      }

弹簧控制器：

 @RequestMapping(value = "/getInformationTest", method = RequestMethod.POST, headers = {"content-type=multipart/form-data"})
    public
    @ResponseBody
    String sendInformationTest(@RequestParam("file") List<MultipartFile> multiPartFileList,@RequestBody("emailData") EmailDataDTO emailDataDTO){                         
         System.out.println("In spring controller");
         System.out.println("single file " +multiPartFileList.size());
    }

@RequestMapping(value = "/getInformationTest", method = RequestMethod.POST, headers = {"content-type=multipart/form-data"})
    public
    @ResponseBody
    String sendInformationTest(@RequestParam("file") List<MultipartFile> multiPartFileList){                         
         System.out.println("In spring controller");
         System.out.println("single file " +multiPartFileList.size());
    }

@RequestMapping(value = "/getInformationTest", method = RequestMethod.POST, headers = {"content-type=multipart/form-data"})
    public
    @ResponseBody
    String sendInformationTest(@RequestParam("file") List<MultipartFile> multiPartFileList,@RequestParam("emailData") List<EmailDataDTO> emailData){                         
         System.out.println("In spring controller");
      }

----编辑--- 我试图将RequestBody更改为RequestParam，如下面2种方式所示，但这两种方式都不会影响spring控制器

初审： js:

弹簧控制器：

 @RequestMapping(value = "/getInformationTest", method = RequestMethod.POST, headers = {"content-type=multipart/form-data"})
    public
    @ResponseBody
    String sendInformationTest(@RequestParam("file") List<MultipartFile> multiPartFileList,@RequestBody("emailData") EmailDataDTO emailDataDTO){                         
         System.out.println("In spring controller");
         System.out.println("single file " +multiPartFileList.size());
    }

@RequestMapping(value = "/getInformationTest", method = RequestMethod.POST, headers = {"content-type=multipart/form-data"})
    public
    @ResponseBody
    String sendInformationTest(@RequestParam("file") List<MultipartFile> multiPartFileList){                         
         System.out.println("In spring controller");
         System.out.println("single file " +multiPartFileList.size());
    }

@RequestMapping(value = "/getInformationTest", method = RequestMethod.POST, headers = {"content-type=multipart/form-data"})
    public
    @ResponseBody
    String sendInformationTest(@RequestParam("file") List<MultipartFile> multiPartFileList,@RequestParam("emailData") List<EmailDataDTO> emailData){                         
         System.out.println("In spring controller");
      }

--编辑---

---

我在servlet.xml中配置了CommonsMultipartResolver

<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
        <property name="maxUploadSize" value="10000000"/>
    </bean>

---

在服务器中，如果您以JSON格式发送数据，则将

标题={“内容类型=多部分/表单数据”}

更改为

标题={“内容类型=应用程序/JSON”}

并检查是否启用了CORS。

---

将标题从前端标题：{'Content-Type'：undefined}更改为

---

标题：{'Content-Type'：“Content-Type=multipart/form data”}

发生了什么错误它没有显示任何错误，但没有击中spring控制器。因此，API路径是错误的？@NiVeR-请参阅上面文章中编辑的部分。。我试着只将一个参数从js传递给spring控制器，然后调用sprig控制器。只有当我试图将两个参数从js传递到spring控制器时，才会出现问题。请将

@RequestBody

更改为

@RequestParam

。我刚刚检查了它，当我将多部分/表单数据更改为application/json时，它仍然没有击中spring控制器。我想说的一件事是，我需要向spring控制器发送文件信息和JSON对象，因为两者完全不同，任何输入？单独安装POSTMAN application test webservice@nanConfigure MultipartResolver，并从前端将其作为formDataI提交我的servlet.xml文件中配置了CommonsMultipartResolver。请参阅上述文章的编辑部分。如何将其作为formData提交？标题：{'Content-Type'：undefined}为什么从前端设置未定义的标题