有个form
<form action="upload" id="upForm" method="post"> <input type="file" id="att" name="attachment" accept="img/jpeg"> <input type="submit" value="ok"> </form>
看action
package action;
public Class UploadAction extends ActionSupport(){
private File attachment;
private String attachmentContentType;
private String attachmentFileName;
public File getAttachment() {
return attachment;
}
public void setAttachment(File attachment) {
this.attachment = attachment;
}
public String getAttachmentContentType() {
return attachmentContentType;
}
public void setAttachmentContentType(String attachmentContentType) {
this.attachmentContentType = attachmentContentType;
}
public String getAttachmentFileName() {
return attachmentFileName;
}
public void setAttachmentFileName(String attachmentFileName) {
this.attachmentFileName = attachmentFileName;
}
public String upload(){
String realpath=ServletActionContext.getServletContext().getRealPath("/");
FileInputStream fis=new FileInputStream(attachment);
FileOutputStream fos=new FileOutputStream(realpath+"/upload/x.jpg");
IOUtils.copy(fis, fos);
fos.flush();
fos.close();
fis.close();
return null;
}
}
struts.xml
<?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN" "http://struts.apache.org/dtds/struts-2.0.dtd"> <struts> <constant name="struts.multipart.maxSize" value="1048576"></constant> <package name="struts2" namespace="/" extends="struts-default"> <action name="upload" class="action.UploadAction" method="upload"> </package> </struts>
复习+备忘