struts2.x的文件上传

准备的jar包：commons-io,commons-fileupload

1 创建上传页面，注意form表单的enctype的属性值为"multipart/form-data"

<s:form action="upload" method="post" enctype="multipart/form-data">
	<s:file label="请输入文件名" name="uploadFile"></s:file>
	<s:submit value="上传"></s:submit>
</s:form>

2 Action中创建以下属性，代码如下：

private File uploadFile;//上传的文件
private String uploadFileFileName;//上传的文件名
private String uploadFileContentType;//上传的类型
//多个文件上传：
private File[] uploadFiles;
private String[] uploadFilesFileName;
private String[] uploadFilesContentType;

3 把文件拷贝到目标路径：

@Override
public String execute() throws Exception {
	FileUtils.copyFile(uploadFile, new File("E:/upload/"+uploadFileFileName));
	return SUCCESS;
}