我正在尝试进行概念验证,该概念涉及.Net系统将文件发布到Java Spring Boot应用程序上的Rest端点.我一直收到“必需参数不存在”错误.这个错误有很多SO问题,我尝试过那些没有运气的解决方案.谁能看到我做错了什么？
这是我的C#代码：
private async Task
这是Fiddler看到的请求：
POST http://10.0.2.2:8083/asset/1000/1001 HTTP/1.1
Content-Type: multipart/form-data; boundary="bac9aebd-d9ff-40ef-bcf3-4fffdd1b2c00"
Host: 10.0.2.2:8083
Content-Length: 158
Expect: 100-continue
Connection: Keep-Alive
--bac9aebd-d9ff-40ef-bcf3-4fffdd1b2c00
Content-Disposition: form-data; name=assetFile
foo,bar,10
foo2,bar2,12
--bac9aebd-d9ff-40ef-bcf3-4fffdd1b2c00--
这是我的控制器：
@RestController
@RequestMapping("/asset/")
public class AssetController {
@RequestMapping(path="{merchantId}/{assetId}",method=RequestMethod.POST)
public String getAsset(
HttpServletRequest request,@RequestParam("assetFile") MultipartFile file,@PathVariable("merchantId") long merchantId,@PathVariable("assetId") long assetId) throws IOException
{
return "It worked!";
}
}
这是我的配置：
@SpringBootApplication(exclude={MultipartAutoConfiguration.class})
public class MySpringApplication {
public static void main(String[] args) {
SpringApplication.run(MySpringApplication.class,args);
}
@Bean(name = "multipartResolver")
public CommonsMultipartResolver multipartResolver() {
System.out.println("multipartResolver()");
CommonsMultipartResolver multipartResolver = new CommonsMultipartResolver();
return multipartResolver;
}
}
以下是回复：
HTTP/1.1 400 Bad Request
Server: Apache-Coyote/1.1
Content-Type: application/json;charset=UTF-8
Transfer-Encoding: chunked
Date: Fri,25 Mar 2016 19:34:55 GMT
Connection: close
f3
{"timestamp":1458934495566,"status":400,"error":"Bad Request","exception":"org.springframework.web.bind.MissingServletRequestParameterException","message":"Required MultipartFile parameter 'assetFile' is not present","path":"/asset/1000/1001"}
0
编辑,因为我发布了错误的C#代码
好吧,也许我没有尝试过我在SO上看到的所有解决方案.
This question had a solution for me.
我不得不使用@ModelAttribute而不是@RequestParam.
