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POstruts2 can't upload file. Invalid field value
 

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  1. POstruts2 can't upload file. Invalid field value
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    <p>When I try upload file in struts2 I get in my view a validation error: <strong>Invalid field value for field "upload".</strong> And in JBoss console I get: </p> <pre><code>10:37:56,140 WARN [OgnlValueStack] Error setting expression 'upload' with value '[Ljava.lang.String;@17c7b19' ognl.MethodFailedException: Method "setUpload" failed for object bm.action.content.SaveNewBannerAction@13ebb53 [java.lang.NoSuchMethodException: bm.action.content.SaveNewBannerAction.setUpload([Ljava.lang.String;)] at ognl.OgnlRuntime.callAppropriateMethod(OgnlRuntime.java:1289) at ognl.OgnlRuntime.setMethodValue(OgnlRuntime.java:1478) at ognl.ObjectPropertyAccessor.setPossibleProperty(ObjectPropertyAccessor.java:85) at ognl.ObjectPropertyAccessor.setProperty(ObjectPropertyAccessor.java:162) ... ... Caused by: java.lang.NoSuchMethodException: bm.action.content.SaveNewBannerAction.setUpload([Ljava.lang.String;) at ognl.OgnlRuntime.callAppropriateMethod(OgnlRuntime.java:1230) /-- Encapsulated exception ------------\ java.lang.NoSuchMethodException: bm.action.content.SaveNewBannerAction.setUpload([Ljava.lang.String;) at ognl.OgnlRuntime.callAppropriateMethod(OgnlRuntime.java:1230) at ognl.OgnlRuntime.setMethodValue(OgnlRuntime.java:1478) at ognl.ObjectPropertyAccessor.setPossibleProperty(ObjectPropertyAccessor.java:85) at ognl.ObjectPropertyAccessor.setProperty(ObjectPropertyAccessor.java:162) </code></pre> <p>My jsp:</p> <pre><code>&lt;div class="v4DDfiltering"&gt; &lt;s:fielderror/&gt; &lt;s:form id="saveNewBannerForm" name="saveNewBannerForm" action="SaveNewBannerAction" theme="simple" method="POST" enctype="multipart/form-data"&gt; ... &lt;div class="OneFilteringRow"&gt; &lt;s:label for="upload" value="Plik:*" /&gt; &lt;s:file id="upload" name="upload"/&gt; &lt;/div&gt; ... &lt;div class="OneFilteringRow"&gt; &lt;s:url id="saveNewBannerUrl" action="SaveNewBannerAction" /&gt; &lt;sj:a href="%{saveNewBannerUrl}" targets="messagesDiv" formIds="saveNewBannerForm"&gt; Save &lt;/sj:a&gt; &lt;/div&gt; &lt;/s:form&gt; &lt;/div&gt; </code></pre> <p>My action class SaveNewBannerAction.java</p> <pre><code>public class SaveNewBannerAction extends BaseAction { private static final long serialVersionUID = 1L; private static final Log LOG = LogFactory.getLog(SaveNewBannerAction.class); private boolean validate = true; private File upload;// The actual file private String uploadContentType; // The content type of the file private String uploadFileName; // The uploaded file name private String fileCaption;// The caption of the file entered by user ... public File getUpload() { return upload; } public void setUpload(File upload) { this.upload = upload; } public String getUploadContentType() { return uploadContentType; } public void setUploadContentType(String uploadContentType) { this.uploadContentType = uploadContentType; } public String getUploadFileName() { return uploadFileName; } public void setUploadFileName(String uploadFileName) { this.uploadFileName = uploadFileName; } public String getFileCaption() { return fileCaption; } public void setFileCaption(String fileCaption) { this.fileCaption = fileCaption; } @Override public void validate() { LOG.info("Enter: validate()"); LOG.info("VALIDATE FIELDS"); ... if(upload == null) { addFieldError("upload", "Proszę uzupełnić pole: plik."); validate = false; } else { if(!uploadContentType.contains("image")) { addFieldError("upload", "Wprowadzono niepoprawny format pliku. Plik musi być obrazkiem."); validate = false; } } LOG.info("Exit: validate()"); } </code></pre> <p>I will be grateful for your help.</p>
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    1. USTomasz Gutkowski
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