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[英]Current request is not of type [org.springframework.web.multipart.MultipartHttpServletRequest]
[英]org.apache.catalina.connector.RequestFacade cannot be cast to org.springframework.web.multipart.MultipartHttpServletRequest
我有一個具有此類配置的網絡應用。 請查看multipartResolver bean。
@Configuration
@EnableWebMvc
@ComponentScan(basePackages = "com.websystique.springmvc")
public class HelloWorldConfiguration extends WebMvcConfigurerAdapter{
@Override
public void configureViewResolvers(ViewResolverRegistry registry) {
InternalResourceViewResolver viewResolver = new InternalResourceViewResolver();
viewResolver.setViewClass(JstlView.class);
viewResolver.setPrefix("/WEB-INF/views/");
viewResolver.setSuffix(".jsp");
registry.viewResolver(viewResolver);
}
@Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
registry.addResourceHandler("/static/**").addResourceLocations("/static/");
}
@Bean(name = "multipartResolver")
public CommonsMultipartResolver multipartResolver() {
final CommonsMultipartResolver multipartResolver = new CommonsMultipartResolver();
multipartResolver.setMaxUploadSize(100000);
return multipartResolver;
}
}
我也有控制器,它應該接受客戶端的文件
@RequestMapping(value = "/file/", method = RequestMethod.POST)
public ResponseEntity<Void> createUser(HttpServletRequest request) throws IOException {
System.out.println("!!!");
MultipartHttpServletRequest mRequest =
(MultipartHttpServletRequest) request; // Exception is here
//some code
}
我在此jsp代碼段中發送文件
<input type="file" id="file" name="file" accept=".xls,.xlsx" enctype="multipart/form-data" />
<button ng-click="ctrl.add()">Add</button>
通過這個角度代碼
function functionAdd() {
var f = document.getElementById('file').files[0];
var fd = new FormData();
fd.append("file", f);
return $http.post(REST_SERVICE_URI1, fd);
}
我有這個堆棧跟蹤。
java.lang.IllegalArgumentException: Invalid character found in method name. HTTP method names must be tokens
at org.apache.coyote.http11.Http11InputBuffer.parseRequestLine(Http11InputBuffer.java:410)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:383)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:754)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1376)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:748)
也許有人可以看到一個錯誤。
使用FormData API POST文件和數據時,將Content-Type標頭設置為undefined
至關重要。
var fd = new FormData()
for (var i in $scope.files) {
fd.append("fileToUpload", $scope.files[i]);
}
var config = {headers: {'Content-Type': undefined}};
var httpPromise = $http.post(url, fd, config);
默認情況下,AngularJS框架使用內容類型application/json
。 通過設置Content-Type: undefined
,AngularJS框架將省略內容類型標頭,從而允許XHR API設置內容類型。 發送FormData對象時 ,XHR API將內容類型設置為具有適當邊界和base64編碼的multipart/form-data
。
有關更多信息,請參見MDN Web API參考-XHR Send方法
您能解釋為什么使用
multipart/form-data
嗎? 而不是undefined
。
沒有適當邊界的multipart/form-data
會引起問題。 XHR send()API自動設置邊界並將其包含在每個部分中。
通過設置Content-Type: undefined
,AngularJS框架將省略內容類型標頭,從而允許XHR API設置內容類型。 發送FormData對象時 ,XHR API將內容類型設置為具有適當邊界和base64編碼的multipart/form-data
。
有關更多信息,請參見multipart / form-data中的邊界是什么?
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