strust1 上传文件要点
1. private transient FormFile formFile;
2.String license = new String(Util.getFile(licenseManageForm.getFormFile()),UTF8_STRING);
3. Util.getFile
/**
* @param file
* @return
*/
public static byte[] getFile(FormFile file){
if(null == file)
return new byte[0];
InputStream stream = null;
try{
stream = file.getInputStream();
byte[] readBuffer = new byte[0];
//read
byte[] buffer = new byte[READ_LENGTH];
int readNum = -1;
while ((readNum = stream.read(buffer, 0, READ_LENGTH)) != -1) {
readBuffer = uniteByteArrays(readBuffer, buffer, readNum);
}
return readBuffer;
}catch(IOException ex){
log.error("", ex);
return new byte[0];
}finally{
try{
if(null != stream)
stream.close();
}catch(IOException ex){
log.error("", ex);
}
}
}
4.
jsp
<%@ taglib uri="http://struts.apache.org/tags-bean" prefix="bean"%>
<%@ taglib uri="http://struts.apache.org/tags-logic" prefix="logic"%>
<%@ taglib uri="http://struts.apache.org/tags-html" prefix="html"%>
<html:form action="LicenseManage.do?method=readLicenseFile" onsubmit="return checkFile();"
method="post" enctype="multipart/form-data" target="hidden_frame">
<input type="file" name="formFile" contentEditable="false"/>
</html:form>