ファイルアップロードで、requestScopeを使い、下のinputで選択したファイルをrequestScopeで呼び出してFileItemに入れていのですが、呼び出せずにエラーが出ます。変数が足りてないそうなのですが、どうすればいいかわかりません。参考書も読みましたが、requestScopeの表記は同じでした。
requestScope("image",image),(image)では赤線が出ます。
ご教授お願いします。
index.jsp <form action="upload" method="post" enctype="multiart/form-date"> <input type="file" name="image"><br> <input type="submit" value="アップロード"> </form>
ImageItem.java @Model(schemaVersion = 1) public class ImageItem implements Serializable { private static final long serialVersionUID = 1L; @Attribute(primaryKey = true) private Key key; @Attribute(version = true) private Long version; private String url; private String contentType; private Blob blob; /** * Returns the key. * * @return the key */ public Key getKey() { return key; } /** * Sets the key. * * @param key * the key */ public void setKey(Key key) { this.key = key; } /** * Returns the version. * * @return the version */ public Long getVersion() { return version; } /** * Sets the version. * * @param version * the version */ public void setVersion(Long version) { this.version = version; } public String getUrl(){ return url; } public void setUrl(String url){ this.url = url; } public String getContentType(){ return contentType; } public void setContentType(String contentType){ this.contentType = contentType; } /**blob**/ public Blob getBlob(){ return blob; } public void setBlob(Blob blob){ this.blob = blob; } @Override public int hashCode() { final int prime = 31; int result = 1; result = prime * result + ((key == null) ? 0 : key.hashCode()); return result; } @Override public boolean equals(Object obj) { if (this == obj) { return true; } if (obj == null) { return false; } if (getClass() != obj.getClass()) { return false; } ImageItem other = (ImageItem) obj; if (key == null) { if (other.key != null) { return false; } } else if (!key.equals(other.key)) { return false; } return true; } }
ImageService.java public class ImageService { public String saveImage(FileItem fileItem){ Key imageKey = Datastore.allocateId(ImageItem.class); String contentType = fileItem.getContentType(); String idStr = Long.toString(imageKey.getId()); String extStr = fileItem.getShortFileName().split("\\.")[1]; String url = idStr = "." + extStr; //String url = imageKey.getId()+"."+fileItem.getShortFileName().split("\\")[1]; byte[] imageData = fileItem.getData(); ImageItem imageItem = new ImageItem(); imageItem.setKey(imageKey); imageItem.setKey(imageKey); imageItem.setContentType(contentType); imageItem.setBlob(new Blob(imageData)); Datastore.put(imageItem); return url+"アップロードしました"; } }
UploadController.java public class UploadController extends Controller { private ImageService imageService = new ImageService(); @Override public Navigation run() throws Exception { FileItem fileItem = requestScope("image"); String result = imageService.saveImage(fileItem); sessionScope("message",",p>"+result+"</p>"); return redirect(basePath); } }
slim3のバージョンは、1.0.15、GAEは1.9.30です。
アップロードボタンを押すと、500エラーが出ます。(綴り間違い訂正後)
HTTP ERROR 500 Problem accessing /image/upload. Reason: java.lang.String cannot be cast to org.slim3.controller.upload.FileItem Caused by: java.lang.ClassCastException: java.lang.String cannot be cast to org.slim3.controller.upload.FileItem at imageupload.controller.image.UploadController.run(UploadController.java:16) at org.slim3.controller.Controller.runBare(Controller.java:111) at org.slim3.controller.FrontController.processController(FrontController.java:491) at org.slim3.controller.FrontController.doFilter(FrontController.java:277) at org.slim3.controller.FrontController.doFilter(FrontController.java:237) at org.slim3.controller.FrontController.doFilter(FrontController.java:199) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) at org.slim3.datastore.DatastoreFilter.doFilter(DatastoreFilter.java:55) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) at org.slim3.controller.HotReloadingFilter.doFilter(HotReloadingFilter.java:192) at org.slim3.controller.HotReloadingFilter.doFilter(HotReloadingFilter.java:157) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) at com.google.appengine.api.socket.dev.DevSocketFilter.doFilter(DevSocketFilter.java:74) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) at com.google.appengine.tools.development.ResponseRewriterFilter.doFilter(ResponseRewriterFilter.java:128) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) at com.google.appengine.tools.development.HeaderVerificationFilter.doFilter(HeaderVerificationFilter.java:34) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) at com.google.appengine.api.blobstore.dev.ServeBlobFilter.doFilter(ServeBlobFilter.java:63) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) at com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:43) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) at com.google.appengine.tools.development.StaticFileFilter.doFilter(StaticFileFilter.java:125) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) at com.google.appengine.tools.development.DevAppServerModulesFilter.doDirectRequest(DevAppServerModulesFilter.java:366) at com.google.appengine.tools.development.DevAppServerModulesFilter.doDirectModuleRequest(DevAppServerModulesFilter.java:349) at com.google.appengine.tools.development.DevAppServerModulesFilter.doFilter(DevAppServerModulesFilter.java:116) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388) at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216) at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182) at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765) at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418) at com.google.appengine.tools.development.DevAppEngineWebAppContext.handle(DevAppEngineWebAppContext.java:98) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) at com.google.appengine.tools.development.JettyContainerService$ApiProxyHandler.handle(JettyContainerService.java:512) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) at org.mortbay.jetty.Server.handle(Server.java:326) at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542) at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:938) at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:755) at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:218) at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404) at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:409) at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
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