问题描述
- 求助：summernote+spring mvc图片上传报错
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先是controller代码：@ResponseBody @RequestMapping("/sumimg.do") public Result upload(HttpServletRequest request) { Result result = new Result(); // 转换为文件类型的request MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request; // 获取对应file对象 Map<String, MultipartFile> fileMap = multipartRequest.getFileMap(); Iterator<String> fileIterator = multipartRequest.getFileNames(); // 获取项目的相对路径（http://localhost:8080/file） String path = request.getSession().getServletContext().getRealPath("up-img"); while (fileIterator.hasNext()) { String fileKey = fileIterator.next(); // 获取对应文件 MultipartFile multipartFile = fileMap.get(fileKey); if (multipartFile.getSize() != 0L) { String imgName = Util.createId() + multipartFile.getOriginalFilename(); try { multipartFile.transferTo(new File(path,imgName)); } catch (IllegalStateException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } result.setData(path+"File.separator"+imgName); result.setMsg("上传成功！"); result.setStatus(0); System.out.println(path+"\"+imgName); } else { result.setMsg("上传失败！"); result.setStatus(1); } } return result; }然后是spring mvc的配置：
<!-- 使用CommonsMultipartResolver配置一个MultipartResolver解析器 --> <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> <!--文件最大值 --> <property name="maxUploadSize" value="1048576000" /> <property name="defaultEncoding" value="utf-8"/> <!--缓存大小 --> <property name="maxInMemorySize" value="40960"/> </bean>然后是前端的代码：
<script type="text/javascript"> $(function(){ $(".summernote").summernote({ lang:"zh-CN",height:"700px", callbacks: { onImageUpload: function(files) { sendFile(files[0]); } } }); function sendFile(file) { var data = new FormData(); data = new FormData(); data.append("file", file); $.ajax({ data: data, type: "POST", url: path+"/upload/sumimg.do", cache: false, contentType: false, processData: false, success: function(result) { alert(1); alert(result.data); }, error: function() { $(".note-alarm").html("上传失败"); setTimeout(function() { $(".note-alarm").remove(); },3000); } }); } }); </script> </head> <body> <div class="container summernote" id="summernote"></div> </body>最后是所报的错误：
严重: Servlet.service() for servlet springmvc threw exception java.lang.ClassCastException: org.apache.catalina.connector.RequestFacade cannot be cast to org.springframework.web.multipart.MultipartHttpServletRequest at cn.xaut.bz.controller.ImageController.upload(ImageController.java:38) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:215) at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132) at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686) at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:953) at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:844) at javax.servlet.http.HttpServlet.service(HttpServlet.java:617) at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:829) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:857) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489) at java.lang.Thread.run(Thread.java:745)注：图片可以正常的保存到img-upload中，路径也可以正常打印
解决方案
我已经解决了，端口号错误
解决方案二：
MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request; 强制转换出错
解决方案三：
MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request; 强制转换出错
解决方案四：
MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request; 强制转换出错
解决方案五：
没人会吗？这么惨啊。
时间： 2024-08-18 07:30:55